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Audi A4 / S4 repairs by problem area

Engine (48%)

Transmission and Drivetrain (7%)

Brakes and Traction Control (3%)

Suspension and Steering (11%)

Electrical and Air Conditioning (20%)

Paint, Rust, Leaks, Rattles, and Trim (7%)

Other (4%)

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Chart based on 6276 repairs.

See TSBs and recalls for the Audi A4 / S4.

Audi A4 / S4 repair cost distribution

$2500+ (7%)

$1000 - $2499 (16%)

$500 - $999 (18%)

$100 - $499 (34%)

< $100 (25%)

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Chart based on 3208 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

See repairs for all Audi A4 / S4 model years.

Audi A4 in New Jersey, United States Feb 2021 - Jun 2022
Jun 2021 6000 mi	The only issue so far is that there have been a few glitches with the new touch screen MMI. It seems to forget all presets at times, requiring a system reboot. After reboot, it’s memory magically returns. Dealer could not duplicate the problem and suggested the reboot, which seems to work.

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Audi A4 in Pennsylvania, United States Dec 2020 - Jun 2022
Jun 2021 1900 mi	Digital portion of instrument panel failed. Part ordered from Germany and arrived in about 1 week. Dealer then performed repair. Covered under warranty.

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Audi A4 in Maine, United States Jan 2022 - Jun 2022
Apr 2022 13000 mi	3G is no more. Audi knew this when they made this car. They now refuse to fix it. This will be my last Audi, and I am now warning people about this BS. Every 3-5 minutes a warning message and annoying buzzer goes off telling me that the emergency contact system is not working. Audi refuses to fix this.

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Audi A4 in British Columbia, Canada Feb 2018 - Mar 2021
Nov 2018 6200 mi	sensor for ac fan fan sensor replaced
Oct 2020 21700 mi	cooling fan sensor

Audi A4 in Ohio, United States May 2017 - Mar 2018
Jan 2018 9500 mi	Cooling fan control unit failed (warranty item) many failed globally and I had to wait for the part to come from Audi, Germany. The entire wait was just under three weeks, but did include both Christmas, the week following and New Years, so some of the issue was the time of year (holidays, etc.) During the time the car was at the dealer, I was loaned a new A8L.

Audi A4 in Ohio, United States Nov 2017 - Jan 2021
Jan 2018 1000 mi	service engine soon light. code for oil level. found oil over filled, drained some out to resolve incident
Dec 2019 15000 mi	CODES P218100,P308100,P01E400. REPLACED THERMOSTAT UNDER WARRANTY
Jan 2021 21000 mi	Emergency sos malfunction indicator light on. Replaced sos antenna and wiring harness

Audi A4 in Connecticut, United States Oct 2017 - Jun 2022
Nov 2018 10000 mi	Driver’s Seat was creaking. Dealer found inflatable seat bolster was bad and in need of replacement. Took a few days to order part and replace seat bolster. Creaking noise is now gone. Covered under vehicle warranty.

Audi A4 in Massachusetts, United States Aug 2017 - Jun 2022
Apr 2018 6000 mi	A warning "engine system malfunction" came on and revs were limited to 3500 although the car otherwise ran normally. Turning off and restarting the car had no effect. I parked the car overnight and in the morning, the malfunction warning was gone. I took it to the dealer where they detected an OBD code for "blocked fan" that had resolved spontaneously. No repair was required and there was no charge as the car is under warranty. The original trigger for this code remains unexplained.

Audi A4 in Colorado, United States Jan 2022 - Jun 2022
Jun 2022 34000 mi	Multiple warning lights, ABS failure. Battery failure

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Audi A4 in Wisconsin, United States Feb 2021 - Jun 2022
Dec 2021 40000 mi	Sunroof made a crackling noise when it was opening and closing - they sprayed some adhesive on the chassis above the headliner liner Lost cell phone connection repeatedly in a large city - has to do with 3G shutdown
Apr 2022 41000 mi US $200	All the electrical within the car repeatedly shut off. I replaced the battery after a voltage check and registered the new battery with the car.

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Audi A4 in Quebec, Canada Dec 2020 - Jul 2022
Jul 2022 44640 mi C $600	Front brake pads and rotors change

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Audi A4 in New Jersey, United States Aug 2016 - Jul 2019
Oct 2016	The drivers window stopped going up or down.

Audi A4 in California, United States Aug 2017 - Jun 2019
Sep 2017 10000 mi	Trip odometer spontaneously resetting (long-term). Instrument cluster changed.
Feb 2018 14000 mi	Backup camera periodically not engaging when backing up. Only engine restart fixes problem.

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Audi A4 in California, United States Nov 2016 - Mar 2020
Mar 2018 11000 mi	the MMI unit failed, so navigation and bluetooth did not work
Nov 2018 20000 mi	Navigation antenna failed and had to be replaced

Audi A4 in Maine, United States Jun 2017 - Jan 2022
Jun 2018 26000 mi	Replaced pads and rotors
May 2021 60000 mi US $1600	Had replace water pump and related parts

Audi A4 in Massachusetts, United States Sep 2016 - Dec 2018
Jan 2018 48000 mi US $600	Rear brakes and pads

Audi A4 in California, United States Dec 2016 - Jun 2019
Mar 2018 8000 mi	Woofer on rear deck defective. Repaired under tech. service bulletin.

Audi A4 in California, United States Mar 2017 - Sep 2018
Aug 2017 8600 mi	Rear passenger window seal/gasket was deformed. The cause of deformation was unknown.

Audi A4 in North Carolina, United States Mar 2016 - Jan 2019
Apr 2016	Coolant leak. Defective cap.

Audi A4 in California, United States Feb 2017 - Jan 2018
Mar 2017 1000 mi	License plate frame screws stripped by dealer - common Audi issue. Clicking noise from driver assistance system. Dealer says this is normal, but I don't believe so. The car is very quiet and this is a very strange clicking noise when the auto cruise control is working. I will have it checked again at the next service trip.
Sep 2017 5000 mi	MMI system locking up. System was restarted, but issue still persists Lane Keep Assist - car keeps driving to left. System was rebooted/restarted, but issue still persists
Jan 2018 7000 mi	Car was a buyback due to the MMI locking up and the driver assistance feature pulling the vehicle to the left.

Audi A4 in Washington, United States Mar 2016 - Jun 2022
Jul 2016 2300 mi	Rattle from passenger-side glove box. Dealer tightened trim retaining screws.
Feb 2017 8000 mi	Nav screen flickering. Dealer performed software update which lessened the flickering. It still occurs but is less frequent/noticeable. Rattle present on passenger side. Dealer could not isolate the cause but applied felt tape to known trouble spots proactively. Rattle much less frequently.

Audi A4 in Nova Scotia, Canada Mar 2016 - Aug 2022
Oct 2017 24180 mi	A warning message about safety restraint system not operational. Dealer said the seat pressure sensor operating correctly. Message still occurs infreqently , once a every few days.

Audi A4 in Michigan, United States Jun 2017 - Jul 2022
Apr 2018 20000 mi	Rear passenger window would not operate. Dealer replaced switch.
May 2021 88000 mi US $3500	Overheating, replaced water pump.

Audi A4 in North Carolina, United States May 2021 - Jun 2022
Jul 2021 80000 mi US $1500	Water pump replacement

Audi A4 in Washington, United States Sep 2016 - Jun 2022
Aug 2018 19500 mi	Recall for speaker trim
Sep 2021 35000 mi US $700	Failed thermostat and leaking coolant resulted in car entering limp-home mode. Thermostat was replaced along with coolant.

Audi A4 in New York, United States Dec 2018 - Aug 2021
Sep 2019 40000 mi	Second attempt by Audi dealer to stop transmission fluid leak, this time pan gasket was replaced. During PM visit my independent shop noticed leaking at transmission pan. They brought car to Audi dealer for fix. Known issue at Audi there is a TSB on this.

Audi A4 in Ontario, Canada Dec 2020 - Jun 2022
Dec 2021 35340 mi	Trunk lid kick open mechanism due to corrosion Rear spring mounts corroded

Audi A4 in California, United States Aug 2016 - Oct 2021
Oct 2021 34000 mi	Engine mount replacement.

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Audi A4 in Pennsylvania, United States Jan 2017 - Jun 2022
Jan 2021 27000 mi	Engine replaced due to occasional instrument warnings

Audi A4 in Alabama, United States Apr 2017 - Jun 2022
Jan 2020 10000 mi	Class 1 oil leak, car under warranty but dealer did not repair but monitor. Upon a followup inspection, no leaks were found.

Audi A4 in British Columbia, Canada Jan 2021 - Jun 2022
Jul 2021 16740 mi C $200	Right and Left Front Wheel bearings replaced, right rear shock leaking oil and replaced - work completed under Audi CPO warranty Replaced leaking right rear shock under Audi CPO warranty AudiCare - 2 yearly brake fluid flush
Feb 2022 23560 mi	Oil leaking around cam adjustment activators

Audi A4 in Maryland, United States Jul 2017 - Jun 2022
Jun 2021 46000 mi	occasional loss of sound from satellite radio channels
Mar 2022 56000 mi US $250	thermostat housing

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Audi A4 in Costa Rica Dec 2020 - Jun 2022
Mar 2021 38440 mi $400	Late model Audis have a known issue where the pressure sensor for the brake booster goes bad. It will trigger a warning (yellow, low priority) that there is an issue with the brake servo, and you can continue driving. When pulling codes it will indicate that the vacuum pressure was too low. If this error is stored 20 times, the ABS module memory is filled up. The message on the IP will change to "ABS Fault. Stop Immediately". The car remains fully functional and it is safe to drive though. The only fix is to replace the ABS module entirely. This can only be done at the dealer or a shop with access to Audi servers in order to code the new module and lift the component protection. The cause is the pressure sensor on the brake booster, which costs about $20...

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Audi A4 in Great Britain Jan 2022 - Dec 2022
Nov 2022 64000 mi £18386	Initial repair task was fixing coolant leak from water pump. During testing after initial repair, oil pump failed and engine was ruined. Cause was identified from official Audi service bulletin. Damage required complete replacement of engine, along with required seals and gaskets etc.

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Audi A4 in Ontario, Canada Mar 2018 - Jun 2022
Jun 2018 6820 mi	replaced GPS antenna

Audi A4 in Ohio, United States Jun 2016 - Mar 2022
Feb 2022 107000 mi US $800	Breather replaced, software update and compression tested in response to a report of what seemed like excessive oil consumption. Have been instructed by dealer to return one the “add oil” message appears. If the consumption test is unsuccessful new pistons and rings were suggested at a cost of $6000.

Audi A4 in New Jersey, United States Aug 2015 - Jun 2018
Mar 2017 14000 mi	Software update to detect problems with water pump
Jan 2018 22000 mi	Recall for pre-heater replacement

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Audi A4 in Pennsylvania, United States Sep 2015 - Oct 2017
Mar 2016 6000 mi	minor trim issue with badging - replaced promptly

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Audi A4 in Ohio, United States Aug 2015 - Jun 2018
May 2018 19000 mi	Slow leak due to a crack in the plastic water pump. Water pump was replaced under warranty. Reverse camera display would flicker and turn off. Bad optical cable connector in the trunk. Connector was replaced. Clutch pedal creaks in hot weather. Clutch pedal was lubricated. It had little effect on fixing the problem.

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Audi A4 in Great Britain Jan 2017 - Jun 2022
Jun 2017 21500 mi	Bank 1 catalytic converter replaced.
Apr 2021 41000 mi £450	Recurring error code, resulting in diagnostic reading and replacement of faulty sensor.

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Audi A4 in Minnesota, United States Jan 2017 - Jun 2018
Aug 2017 15000 mi	Software recall

Audi A4 in Missouri, United States Nov 2014 - May 2017
Apr 2017 74000 mi US $3500	Trouble getting transmission in gear. Dealer replaced transmission.

Audi A4 in Iowa, United States Jun 2015 - Jun 2022
Nov 2016 31000 mi	The entire MMI screen went blank. The dealer spent 3 days tracking down the problem and conferring with Audi. They replaced the 5F control module and reset everything. We lost all of our data. The $3,000 charge was covered by warranty.
Apr 2017 36000 mi	Owner adjusted the rearview mirror on the windshield and the mirror fell off - dangling by some wires.
Jun 2017 38963 mi	Engine Malfunction switch on the dash is on. NVLD Pressure switch broken - Fault P0456 on the EVAP system. Dealer removed and replaced the EVAP filter, EVAP canister and the NVLD pressure switch. Repair cover by warranty.
Dec 2017 48500 mi	the driver's exterior door lock stopped responding to the key. Replaced the drivers door handle touch pad sensor
Jun 2018 54755 mi	Left front wheel bearing replacement
Mar 2021 87300 mi US $2182	The drivers side daytime running light was not operating. It involved the entire light assembly unit- not just a bulb. It involved the LED assembly inside the headlight.
Jan 2022 96400 mi US $622	At about 96,000 miles the EPC light came on on the dash. We were on the road and we drove for several hundred miles to get to our winter home and to the Audi dealer. We also scheduled the 95,000 mile service at the visit. The dealer could not identify the reason for the EPC - except a stored fault for turbocharger overboost fault. Audi factory advised resetting all the computers. After that the EPC warning was gone and the car is performing well. We will monitor the car ....

Audi A4 in California, United States Dec 2015 - May 2018
Jan 2018 47000 mi	Recall for wiring on supplementary rear passenger heater.

Audi A4 in Virginia, United States Mar 2015 - Jun 2019
Dec 2015 15000 mi	Satellite radio "linking" with no sound. Diagnosed internal failure of roof antenna. Antenna replaced.
Aug 2016 33000 mi	Roaring noise from RR wheel. Replaced wheel bearing.
Jun 2018 84335 mi US $115	MIL is on. Cause is P0299 turbo underboost (static) fault. Recommend turbocharger replacement.
Dec 2018 101000 mi US $111	Purchased a SirrisXM external antenna from Best Buy for $29.99. Radio and traffic now work. Satellite radio “linking” and is inoperable. Rear section of the headliner was lowered and shark fin antenna assembly was determined inoperable. Dealer recommended replacing for $800. Customer declined and purchased a SirrisXM external antenna from Best Buy for $29.99. Radio and traffic now work.
Mar 2019 110000 mi US $419	Roaring noise coming from the left rear wheel. Wheel bearing failed.

Audi A4 in North Carolina, United States May 2018 - Jun 2022
Sep 2018 78000 mi US $500	Headlight (HID) replacement
Mar 2020 85000 mi US $1500	Oil fill sensor failure

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Audi A4 in Ontario, Canada Oct 2020 - Jun 2022
Feb 2021 35340 mi C $800	miss firing

Audi A4 in Ontario, Canada Oct 2015 - Mar 2018
Oct 2016 22320 mi	MMI system failed
Nov 2017 40300 mi	Squeak around shift boot.

Audi A4 in Washington, United States Dec 2014 - Jan 2018
Oct 2017 19000 mi	Squeaking rear shock bushings.

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Audi A4 in Alberta, Canada Apr 2015 - Jan 2022
Feb 2016 5120 mi	1 backup sensor would periodically fail to work and result in a long beep when car was in reverse. Tech pushed on a sensor and heard a "Click". Removed sensor cleaned the connection and re-installed.

Audi A4 in Connecticut, United States Jul 2014 - Nov 2017
Feb 2017 20700 mi	After receiving Gearbox Failure and TPMS Malfunction warnings, vehicle was flatbedded to local dealer and entire 7sp DSG transmission was replaced based on diagnostics. Vehicle is 2.5 yrs old with 20K miles.
Jul 2017 24000 mi	Reported clunking resulted in replacement of a rear strut and replacement of front sway bars.

Audi A4 in Ontario, Canada Jan 2015 - Aug 2015
May 2015 6200 mi	The aluminum panel on the left front door got loose so it made an annoying noise when cruising on highway. Took it to a dealer for and found that a screw inside that panel had got loose. Finally fixed it.

Audi A4 in Maryland, United States Sep 2015 - Feb 2016
Sep 2015 9000 mi	Evap sensor

Audi A4 in Florida, United States Feb 2016 - Jan 2022
Apr 2017 30000 mi US $600	Replace front brake pads and rotors Fuel door would not open. I needed to open it manually through the trunk. I haven't taken it in yet as it is not an emergency. It will be covered by warranty.
Jun 2018 46000 mi	Replaced front upper control arm bushings under warranty Replace fuel door actuator.

Audi A4 in Ontario, Canada Aug 2017 - Jun 2022
May 2018 35960 mi	Side mirror not working
Sep 2018 40300 mi	Rear view camera intermittent.
Oct 2018 40300 mi	Chain tensioner failure resulting in chain rattle on cold starts.
Nov 2018 40920 mi	Error message "transmission malfunction, limited usability". Only 2,4,6 gears usable. Computer cleared, nothing repaired.
Dec 2021 60140 mi C $1800	Pcv system failure. Repaired. Also conducted media blasting on valves.

Audi A4 in Ohio, United States Jan 2020 - Jun 2022
Sep 2020 53000 mi	Timing chain tensioners Fuel sending unit sensor

Audi A4 in New Jersey, United States Jan 2021 - Apr 2022
Feb 2022 95000 mi US $530	Battery needed to be replaced - not charging fully.

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Audi A4 in Washington, United States Jun 2014 - Jan 2022
Apr 2018 26000 mi	Leaking water pump.

Audi A4 in Maryland, United States Sep 2014 - Jun 2022
Mar 2015 4000 mi	CEL came on. Dealer had to R&R Manifold Absolute Pressure sensor.

Audi A4 in Pennsylvania, United States Aug 2017 - Jun 2022
Dec 2017 39123 mi	Sunroof whistling > 40mph - dealer adjusted glass
May 2018 41000 mi	Slight rattle when engine revs. Dealer replaced front muffler under warranty.

Audi A4 in California, United States Sep 2015 - Mar 2018
Mar 2016 13000 mi	speaker rattle, fix didn't work

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Audi A4 in Tokyo-Shinagawa, Japan Jan 2015 - Jul 2021
Apr 2017 14880 mi	Engine mount was replaced due to excessive vibration

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Audi A4 in California, United States Nov 2014 - Jun 2018
Oct 2015 14300 mi	Visor clip broken
Jun 2018 43 mi	sensor module needed to be replaced for some cooling issues

Audi A4 in Vermont, United States Mar 2014 - Jul 2015
Jul 2015 17000 mi	Squeaks in cabin. Dealer could not determine cause. Door seals squeak and rattle at rough roads.

Audi A4 in Ohio, United States Jun 2017 - Jun 2022
Oct 2021 69000 mi US $260	Replaced alarm siren(built in battery went dead) Replaced radio antenna amplifier (when bad - open circuit)

Audi A4 in Colorado, United States Jun 2015 - Dec 2017
Mar 2016 15000 mi	Sun visor clip broke with almost no force (I was returning the visor to its original position). Dealer replaced clip free of charge. Sunroof was excessively slow to close and stopped prematurely once. It appeared to be caused by too much friction on the sunroof track.
Sep 2016 20000 mi	Passenger side sun visor clip broke. Will take to dealer for repair. This part is made from candy canes. My driver side clip broke 6 months ago. Again, normal use caused this part to fail.
Dec 2016 22000 mi US $480	Replaced broken passenger side visor clip. Dealer did this for freee. Rodent chewed through wiring for turbo boost valve and engine mount. Caused engine to operate with no turbo boost. Check engine light was illuminated.

Audi A4 in New York, United States Jan 2017 - Dec 2017
Aug 2017 40000 mi	wheel bearings on front end needed to be replaced. brakes were squeaking

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Audi A4 in Pakistan May 2017 - Jun 2018
May 2018 23250 mi $300	Catalytic converter cleaning Oil+Oil Filter Change Air Filter Change Cabin Filter Change

Audi A4 in California, United States Feb 2014 - Jun 2018
Jun 2015 8000 mi	Emission control problem

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Audi A4 in North Carolina, United States Jun 2014 - Jun 2017
Sep 2015 13000 mi	Indicated cooling failure; coolant was low. Inspected by dealer, coolant refilled, no other repair.

Audi A4 in Nevada, United States Dec 2013 - Jun 2022
May 2015 19700 mi	Vehicle still has the same issue. At random once every month or so the brakes begin a loud grinding noise. This noise occurs without using the brakes.
Sep 2015 24000 mi	MMI system was replaced due to troubles connecting to satellites during NAV use. There was a TSB out for the issue and the dealership replaced quickly and at no cost.
Jun 2020 44000 mi US $1000	Water pump seals began to degrade and leak coolant slowly. The pump was replaced with an OEM replacement.

Audi A4 in California, United States May 2015 - Sep 2017
Jun 2015 25000 mi US $160	Premature worn out of brake pads and rotors. First replaced at 15k. 8k later already down to 4 mm and rotors are warped.
Feb 2016 33400 mi US $660	Replace front brakes again after 18000 miles. Brakes wear out prematurely
Dec 2016 41000 mi US $255	Replaced worn rear brake pads
Jun 2017 46500 mi US $285	Replace front brake pads

Audi A4 in Wisconsin, United States Dec 2013 - May 2017
Jan 2017 37800 mi US $85	Xeon bulb went out. Replaced

Audi A4 in Washington, United States Feb 2017 - Jun 2018
May 2018 36000 mi US $85	Rear backup camera failed. Need full replace of wiring harness and camera module. Good thing i have CPO warranty.

Audi A4 in Ohio, United States Sep 2013 - May 2017
Jul 2015 28700 mi	Exterior brightwork had become tarnished. Audi replaced at no charge.

Audi A4 in Ontario, Canada Aug 2021 - Oct 2024
Jun 2022 86800 mi C $200	Oil change, inspection. Follow-up will be for brake discs/pads, control arm replacement and ride-height level sensor replacement.

Audi A4 in New Jersey, United States Apr 2015 - Jun 2022
Mar 2022 107100 mi US $1973	-Replaced rear brake pads and rotors. -Brake fluid flush -Performed major service -Replace valve cover gaskets and oil filter flange gasket -Replaced both drive belts, idler pulleys and tensioners

Audi A4 in Illinois, United States May 2017 - Jun 2018
Jul 2017 38135 mi	Passenger visor clip replacement
Nov 2017 42224 mi	Both front, lower wishbones replaced (hydro bushings making noise).
May 2018 50000 mi	Engine rattle TSB performed.

Audi A4 in Minnesota, United States Dec 2015 - Nov 2022
Jul 2017 19000 mi	Replaced Antenna for MMI/Nav system due to slower location acquisition at start up.
Mar 2018 30000 mi	Nav system would randomly show car in wrong spot and would randomly clear XM stations (but not AM or FM) from the presets.
Oct 2022 63000 mi US $1000	replaced seeping water pump

Audi A4 in New Brunswick, Canada Oct 2020 - Jun 2022
Jun 2022 62000 mi C $365	Lower control arm bushing replaced, both sides, after mechanic said needed to pass inspection.

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Audi A4 in New Jersey, United States Oct 2013 - May 2020
Nov 2014 16100 mi	The trunk arm rubbed against the trunk covering on the right side. Audi adjusted the trunk covering so it did not rub anymore.
Jul 2016 31200 mi	Trim around dashboard was chipping. Dealer replaced trim under warranty.
Jun 2017 44000 mi US $2500	Left headlight had cobwebs in it. Dealer replaced headlight under warranty. Condenser cracked, replaced with aftermarket condenser
Aug 2017 48000 mi	Left headlight went out, technician found a crack in the bulb. Was replaced
Feb 2018 51000 mi US $3200	Replaced clutch and flywheel. I had my car tuned with a performance chip, when that was done the clutch began slipping. I'm assuming it was a dual result, a worn clutch combined with the additional power overcame the clutch plate friction. When they did replace it, they said there was also excessive slop in the flywheel and there were warp marks on the flywheel too.

Audi A4 in Newfoundland / Lab., Canada Nov 2013 - Dec 2016
Aug 2015 10420 mi	Replaced drive shaft bearing . Noise still present.
May 2016 15500 mi	Front left wheel bearing
Jun 2016 16120 mi	Wheel bearing

Audi A4 in New Jersey, United States Sep 2014 - May 2016
Mar 2015 5000 mi	Suspect wheel bearing noise: 75mph+ on smooth surface, with steering input. Dealer said only test drove for 2 miles, so they did not get it to the right conditions. Frustrating that a simple diagnosis will require multiple visits
Apr 2015 5300 mi	Second trip for same wheel bearing noise and this time dealer foreman confirmed. Bearing replaced and noise mostly gone, but still not perfectly quiet.
May 2016 11000 mi	Very light whistling/buzzing wheel bearing-like noise on highway sweepers @75mph+. One WB replaced, noise less, but continues. Not a huge deal, but surprising to lose at least two WB's in 11k miles.

Audi A4 in Alberta, Canada Dec 2018 - Jun 2022
Jan 2019 68820 mi C $1200	Secondary air fault code (0491 on both banks). Typically comes on in cold weather and is caused by carbon build up due to direct injection.
Mar 2022 114597 mi	Rear brake pad and rotors, change brake fluid, recondition rear calipers replace rear wheel bearing

Audi A4 in California, United States Nov 2016 - Jun 2018
Dec 2016 16000 mi	Blind spot not working properly

Audi A4 in Iowa, United States Apr 2014 - Jul 2021
Feb 2018 33000 mi US $133	Left high beam low beam light bulb replaced

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Audi A4 in Vermont, United States Nov 2014 - Dec 2014
Nov 2014 21000 mi	Check engine light

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Audi A4 in Massachusetts, United States Aug 2013 - Feb 2025
Nov 2015 23900 mi	Seat memory ceased functioning. Re-programming corrected the problem.
Feb 2018 45000 mi US $90	MMI pad replaced to fix radio volume control rheostat. Cost included copay and tax on CPO warranty. Actual part was $577 but covered under warranty
Apr 2018 47000 mi US $90	Intermediate steering shaft & coupling replaced due to stiff steering when turning.
Sep 2020 67000 mi US $334	Replaced front rotors and brake pads
Jun 2021 72200 mi US $442	Replace left front outside CV boot
Mar 2022 78000 mi US $300	Right rear shock absorber failed. Both shock absorbers were replaced.
Sep 2023 91000 mi US $1150	Replaced left rear wheel bearing.
Apr 2024 96000 mi US $1800	Water pump failed and replaced. Belt tensioner and serpentine belt also replaced

Audi A4 in New York, United States Jul 2013 - Jul 2022
May 2017 76000 mi US $800	Both front bearings were worn out and had to be replaced
Jun 2021 124000 mi	Turbocharger had failed. Repair was covered by warranty
May 2022 134000 mi US $12	Spark plugs changed, carbon deposits removed

Audi A4 in Alabama, United States Jul 2013 - Jun 2017
Oct 2015 76300 mi US $100	Replaced breather control valve.
Sep 2016 108000 mi US $500	Battery replacement and other parts.
Jan 2017 90700 mi US $1600	Spark plugs, fuel injector, replaced. Transmission reprogrammed, and valves carbon cleaned.

Audi A4 in Minnesota, United States Feb 2015 - Mar 2018
Jul 2017 55000 mi US $28	tail light light bulb wearout

Audi A4 in Ontario, Canada Jun 2016 - Jun 2018
Dec 2016 40300 mi C $190	Xenon bulb exploded or disintigrated. Just the bulb had to be replaced
May 2017 45880 mi	HID Xenon bulb burned out (the other side) - under warranty
May 2018 60140 mi	Broken front coil spring. Sping was replaced (part back-ordered from Germany - 1.5 week wait) Steering Rack replaced Airbag sensor light was on - Dealer replaced a control module

Audi A4 in Maine, United States Jan 2016 - Jan 2022
Feb 2017 48000 mi US $35	Replaced a broken sun visor clip.
Nov 2017 60300 mi US $198	Replaced failed PCV/Oil Separator

Audi A4 in California, United States Mar 2016 - May 2017
Dec 2016 32000 mi US $1500	Fuel injector #4 went out. Car was shuttering upon start if it started and had white smoke out the tail pipes.

Audi A4 in Georgia, United States Jul 2013 - Aug 2017
Sep 2015 36000 mi	GPS would fail to find satellites after parking in parking deck. Would sometimes take over 40 minutes for system to find satellites on a sunny day. Software updates applied but problem was most prevalent in hot humid summer months. Driver seat exhibits clicking and creaking sounds as driver weight shifts. Mechanic tightened some things around the seat tracks, but noise persists. I believe it now to be in the hydraulic mechanism that raises the seat.
Jul 2016 48200 mi	Car struggles to start on hot summer days after a long drive. Applying gas pedal during long crank will allow the car to start. Once the car is cool there are no issues. Dealer failed to diagnose or fix.
Aug 2017 66000 mi US $1000	Car began stumbling badly and threw a bunch of codes. Yellow CEL came on so I drove it straight to the dealer. Diagnosed as stuck fuel injector. Cost was $1200, but dealer did it for $1000.

Audi A4 in Ontario, Canada Jul 2013 - Sep 2014
Apr 2014 2580 mi	Took car into Dealership after persistent calls to Audi Canada,, about Vibration on this new Car. Car was in shop, 1 week and result was no problem detected. still driving this Headache Lemon Car, with 7000km on it since Aug 2013.

Audi A4 in Arizona, United States Jun 2015 - Jan 2018
Dec 2017 83000 mi US $700	Front brakes & rotors. Stabilizer bar bushings on warranty.

Audi A4 in Colorado, United States Nov 2017 - Aug 2019
Apr 2018 42000 mi US $90	Xenon headlight bulb

Audi A4 in Illinois, United States Nov 2013 - Dec 2019
Jul 2018 74000 mi US $85	Water Pump Failure, replaced under warranty

Audi A4 in Ontario, Canada Apr 2015 - Jun 2022
Dec 2016 37200 mi	Repair on rear window defroster.
Jul 2021 85423 mi C $8500	engine rebuilt. new pistons and rings due to excessive oil consumption. barely passed Audi engine oil consumption test.
Jun 2022 91140 mi C $249	Replaced passenger side mirror surface.

Audi A4 in Ohio, United States Jun 2013 - Feb 2017
Sep 2015 44000 mi	Check engine light showed lean faults and low fuel pressure. Breather was leaking so breather valve was replaced along with fuel pressure sensor. After repair next day car flashed epc and check engine light came on. This time fuel pump was replaced. The flow of fuel was a little lower than what it should've been according to the tech. All happened only during moderate to hard acceleration. Check engine light again due to cylinder misfire under moderate to hard acceleration. Plugs replaced. Repairs finally fixed issue and engine running fine.

Audi A4 in British Columbia, Canada Oct 2012 - Aug 2017
Nov 2013 5980 mi	Plastic trim around led display squeaked. A technical service bulletin was released on this according to the dealer and the part was replaced at no cost.

Audi A4 in Ontario, Canada Sep 2016 - Nov 2020
Feb 2018 45880 mi	Heating system preheated for cabin heat. Recall.
Dec 2018 55800 mi C $436	Heater core replaced. Clogged, poor coolant flow.
May 2020 70680 mi C $550	Wheel bearing replacement.

Audi A4 in Texas, United States Jan 2013 - Sep 2015
Jun 2014 14000 mi	TSB updates to AC and internal systems

Audi A4 in Ontario, Canada Jan 2013 - Nov 2016
Jun 2015 32860 mi	Right wheel bearing replaced under warranty
May 2016 43560 mi	Steering wheel was starting to seize. Undrivable so Car towed to dealer

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Audi A4 in California, United States May 2015 - Jan 2017
May 2015 98000 mi US $8700	Piston and ring Failure in the #4 Cylinder, "0" compression. All Compression leaking into the crankcase. Required total engine replacement
Jun 2015 98000 mi	Check engine light, gas tank vapor valve stuck. Fixed. Replacement engine used one extra quart of Ultra Moly synthetic 5-40w over 10,000 miles. So far OK. In the next 10,000, used 2 extra quarts added over 10,000 miles between oil cnange.
Sep 2015 117000 mi	Ring Failure in Cyl. #2. Complete engine replacement. Dealer new engine is $9500 plus dealer labor. Likely $15000 cost. in process. This is a 2013 going on its 3rd engine. Complete new factory engine installed, 3rd one, tested and road tested by dealer. I kept the damaged engine for a rebuilder to bore & Nickasel plate the cylinders install custom pistons and rings for long mileage. Through the new break in.
Dec 2015 130000 mi US $616	New engine and using a quart of oil every 1,500 to 2,000 miles. Replaced crankcase pressure control valve and a burnt spark coil plug wire. Asked for a compression test at my expense. Slowed to a quart per 3k.
Feb 2016 136000 mi US $200	Replaced rear brake pads and torn brake piston boots.
Apr 2016 149000 mi US $1000	Alternator went out. Audi supply chain 2 to 3 weeks from Germany. LKQ Salvage alternator took two trips to Sacramento. Crankcase pressure release valve also replaced third time third engine.

Audi A4 in Arizona, United States Aug 2012 - Sep 2021
Mar 2013 8000 mi	The passenger side airbag sensor would switch on and off with a passenger seated. The airbag could be turned on and off by slight shifts in body weight.
May 2013 10000 mi	The actuator that controls the locking mechanism for the gas lid failed, causing a loud buzzing sound on every attempt to unlock the gas lid. The gas lid was unable to be opened until repairs were completed.
Dec 2013 19000 mi	Rough idle followed by check engine light, and hard stuttering shortly after. Fuel injectors replaced but cylinder found to be cracked and leaking fuel/oil causing misfires. Engine replaced.
Dec 2015 64000 mi US $700	Check engine light came on, found out it was for an air leak in the fuel injector.
Aug 2017 99000 mi US $1900	Braking was becoming inconsistent, brake discs and brake pad sensor replaced. Engine mounts collapsed and leaking, replaced. Lower control arms failing, replaced under extended warranty.
Sep 2021 136000 mi US $9000	Two cylinders failed, engine totaled.

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Audi A4 in Alberta, Canada Aug 2016 - Jun 2018
Apr 2018 55800 mi C $1200	A road hum that started soft with acceleration and got louder with speed and time. I knew it would be pricey so I held off as long as I could. I thought it was only one rear wheel bearing, but turned out to be both. 1200$ later and it's a smooth quiet ride again. Yeesh. The wheel bearings were about 250 a side, killer.

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Audi A4 in Quebec, Canada Mar 2013 - Feb 2017
Feb 2016 19840 mi	Dead battery

Audi A4 in New Jersey, United States Dec 2015 - Apr 2017
Aug 2016 59000 mi US $100	Ac pressure switch
Apr 2017 62000 mi US $100	Leaking water pump

Audi A4 in Minnesota, United States Feb 2014 - Jan 2022
Oct 2016 27200 mi	Turbo died and needed to be replaced

Audi A4 in Ontario, Canada Jun 2014 - Jul 2014
Jul 2014 27280 mi	misfire cylinder 4 due to leak on the crankcase

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Audi A4 in New South Wales, Australia Jun 2015 - Jun 2018
Nov 2015 11780 mi	Adaptive Headlight Defective. 1st Visit to shop control module changed, failed again later in day.
Mar 2016 14260 mi	A/C stopped producing cold air, no warning signs. Normal ventilation worked fine. Pressure Sensor failed.
Oct 2016 18600 mi A $100	Dashboard error and misfire after enthusiastic driving. Diagnostics showed Cylinder 3 misfire. Error went away after turning off engine for 10 minutes. Replaced spark plugs and ignition coils based on mechanic recommendation
Jun 2017 26040 mi	Water pump leaking, needed replacement Overflow tank cracked, needed replacement

Audi A4 in Texas, United States Mar 2013 - Jan 2022
Oct 2014 15300 mi	Continuous rattle in the steering column on textured pavement at over ~55 mph. Dealer added interior padding in steering column. Rattle continues but sounds slightly muffled after repair.

Audi A4 in California, United States Apr 2013 - Jan 2022
Jul 2013 7700 mi	Interior dash trip vibrates and rattles on uneven/rough roads and freeway surfaces.
Sep 2021 116000 mi US $6000	Mechatronic needed to be replaced. S-tronic failed.

Audi A4 in Michigan, United States Oct 2017 - Jun 2022
Feb 2018 57000 mi US $750	Front brake pads and rotors replaced
Jan 2022 95000 mi US $1800	Pcv valve

Audi A4 in California, United States Feb 2013 - Dec 2014
Sep 2013 5000 mi	Applied software update for steering mechanism

Audi A4 in Wisconsin, United States Jul 2012 - Jun 2018
Jul 2014 6000 mi	electronic sensor in sport differential failed (only the sensor)

Audi A4 in Connecticut, United States Jun 2016 - Apr 2018
Mar 2018 34700 mi US $86	Mechtronics unit for the DSG started to show nasty hesitation from Reverse to Drive. The car was also knocking into gear from a full stop. Audi reviewed, diagnosed and determined that the transmission should be replaced. Which was thankfully covered by warranty.

Audi A4 in New York, United States Mar 2013 - Jun 2018
Dec 2013 5000 mi	Rattle in center of dashboard and rattle in passenger door speaker. Speaker was replaced.
Dec 2014 10000 mi	Rattle near front passenger door/A pillar.
Aug 2016 26400 mi	Rattle in passenger door caused by broken door panel clips. Clips replaced by dealer.

Audi A4 in Pennsylvania, United States Oct 2012 - Mar 2017
May 2015 44100 mi	Malfunctioning headlamp needed replacing.
Aug 2015 45400 mi	Oil pressure sensor was replaced

Audi A4 in California, United States Nov 2012 - Mar 2014
Aug 2013 8000 mi	EPC dashboard error. Cylinder 3 misfire (lost power and could just coast home). Dealer can't recreate problem. Couldn't isolate specific error and thus fix it. Got car back without any repair completed.

Audi A4 in Texas, United States Oct 2012 - Nov 2014
Sep 2013 16000 mi	Bang and Olufsen speaker rattle. The mounting hardware was found to be broken.
Nov 2014 33000 mi	Audi dealer service dept refused to acknowledge loud rattle/vibration in undercarriage. Service tech took car joyriding and damaged rim. I traded the car in within 2 weeks of incident.

Audi A4 in Nevada, United States Jan 2013 - Aug 2017
Jul 2015 22200 mi	Cap came off the back of the headlight and it injested water after driving through a puddle. It shorted out the headlight system and a suspension sensor.
May 2016 31000 mi	Steering had a notchy feeling at dead center. Hard to keep the wheel centered perfectly, it wanted to be either slightly right of center or slight left but not perfect center. Dealer replaced power steering unit. Fixed problem perfectly.

Audi A4 in West Virginia, United States May 2013 - Mar 2018
Jun 2017 73000 mi	Wheel had flat spot causing vibration. Wheel was repaired.

Audi A4 in Texas, United States Jun 2014 - Aug 2017
Jun 2015 22000 mi	Second Xenon Bulb failure; driver's side.

Audi A4 in Texas, United States Feb 2015 - Jul 2018
Jul 2015 25000 mi	Crankcase valve sensor failed causing EPC error; repaired under warranty.

Audi A4 in Washington, United States Aug 2015 - Dec 2016
Mar 2016 33000 mi	Driver side XENON bulb went out.

Audi A4 in Illinois, United States Apr 2015 - Jan 2016
Oct 2015 47000 mi US $100	Common problem that the thermostat fails early. Thermostat wont open completely and over heat unless you have heater on high bypassing thermostat. Problem just popped up out of nowhere but you car drive it until you have time. Tricky repaired

Audi A4 in Ontario, Canada Jun 2013 - Jun 2015
Jun 2015 18600 mi C $65	Sway bar was loose making a creaking noise when wheel was turned.

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Audi A4 in Wisconsin, United States Nov 2012 - Sep 2013
Jan 2013	Control module on water pump reported a failure. Pump physically working fine. Electronics failure so pump was replaced. Had to ship from Germany which what took the most time over Christmas/New Years.

Audi A4 in California, United States Feb 2017 - Jun 2022
Sep 2017 38000 mi US $900	Water pump was leaking (approx 1 week for entire coolant system to drain). Solved after water pump replacement.
Mar 2018 42000 mi US $500	Replaced front rotors and pads
Sep 2020 55000 mi US $4000	Clutch pedal position sensor was not tripping and car would not reliably start. One shop replaced servo and master cylinder but problem persisted. Other shop identified issue as clutch plate collapse and successfully replaced clutch.
Sep 2021 73000 mi US $6500	A previous shop botched a September 2019 PCV repair (due to dropping coolant levels and pooling in some crevices around the engine), and coolant had slowly dripped into the intake manifold. This repair fixed coolant-related items, replaced injectors, and did carbon cleaning.

Audi A4 in Massachusetts, United States Jul 2015 - Jun 2018
Sep 2015 28000 mi	Clunk in front end. Dealer replaced lower control arms under warranty (TSB).
Nov 2015 31000 mi	Drivers window gasket rolled, caused window to move slowly. Finally repaired under warranty after 2 months and 4 trips to the dealer
Feb 2016 34300 mi	Washer fluid leaking from passengers side headlight washer Washer fluid still leaking from passengers side headlight washer. Last visit, headlight washer pump was incorrectly idenified as source. part was replaced, nozzle still leaking. nozzle replaced this time, problem fixed.
Jun 2016 40000 mi	loose trim, likely left in that state from previous repair. Also, asked dealer to investigate clutch pedal squeak/creak when interior of car is hot - NFF on this request. Pedal creaks at top of travel but functions normal.
Jun 2017 51000 mi	Brought car in for occasional clunk in front end when backing into driveway. Diagnosed as bad lower control arms (already replaced once under warranty at ~28,000 miles) per tsk. Need to bring car back for actual repair once parts come in.
Jul 2017 51000 mi	Parts replaced... front lower front control arms again as diagnosed on previous visit
Jun 2018 65000 mi US $85	Notchy steering returned Flakey rear view backup camera

Audi A4 in Massachusetts, United States Feb 2013 - Nov 2021
Sep 2015 20000 mi	I heard a quiet drone when driving so I took it to the dealer, replaced wheel bearing for free under warranty, problem solved.
Nov 2016 33000 mi US $2000	I had all four sets of pads and rotors replaced.
Mar 2018 41000 mi US $3000	clutch/flywheel replaced
Mar 2021 60000 mi US $600	Replaced all 4 dampers
Jul 2021 64000 mi US $1000	CV Shaft Failure Wheel Bearing Failure

Audi A4 in California, United States Sep 2014 - Jun 2018
May 2014 36000 mi	Replace leaky water pump
Sep 2014 43000 mi	Water pump leaking; replaced under warranty
Oct 2014 45000 mi	Fuel system: Fuel pressure sensor
Sep 2017 115000 mi US $4490	The clutch had begun to consistently "chatter" just before the it catches. Replace clutch. Also replaced flywheel, thrust bearing, and rear main seal since in there. Safety switch malfunction, found slight leak in clutch master cylinder. Master cylinder assembly replaced.
Mar 2018 130000 mi US $650	[Clutch] slave cylinder needed replacement

Audi A4 in Maryland, United States May 2013 - Sep 2017
Sep 2017 40000 mi US $600	MMI failed completely, no screen, no nav/radio. Dealer replaced MMI unit, no longer under warranty.

Audi A4 in California, United States Aug 2014 - Oct 2014
Oct 2014 18000 mi	Engine stalled intermittently at stop lights. No warning lights or fault codes. Dealer could not identify problem but adjusted air flow (?) and replaced battery in key. Problem has not recurred in three weeks.

Audi A4 in Illinois, United States Feb 2013 - Jun 2017
Sep 2016 43000 mi	AC not blowing cold air. Sensor was replaced.

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Audi A4 in California, United States Oct 2012 - Mar 2018
Oct 2016 53800 mi US $350	Car electrical bus would seize up completely, car would start intermittently. Several error codes would pop up, but were all related to sticky relays which turned out to be in a TSB. Relays replaced, which solved the problem.

Audi A4 in Ontario, Canada Jan 2013 - Jul 2015
Jan 2013 19840 mi	The passenger's side headlight washer is intermittently getting stuck in the open position. Can be closed with a slight push. Problem is persisting for at least a year.
Dec 2014 43400 mi	Moonroof sun shade convenience retracting/closing feature wasn't working (one button press didn't open/close the sunshade, it had to be held down). The dealer replaced the faulty switch.
May 2015 48360 mi	Front driver side bearing started making noise at about 77000 km. Replaced under warranty. Oil consumption test. The car requires 2 quarts of oil between the scheduled oil changes

Audi A4 in Connecticut, United States Jan 2012 - Jul 2018
Jul 2017 47000 mi US $900	Turbocharger was replaced as a warranty item. water pump replaced

Audi A4 in Arizona, United States Feb 2012 - May 2018
Jun 2015 32000 mi	replace water pump
Jan 2018 68000 mi US $70	replace hood strut

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Audi A4 in Great Britain Feb 2014 - Dec 2017
Oct 2014 27000 mi	Fuel control module / pump failure. Replaced door seals that were pulling away from the doors.

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Audi A4 in Alaska, United States Mar 2015 - Jan 2022
Oct 2016 60500 mi	Recall on sensor in transmission that caused engine light to come on! I took it in when the engine light came on and recall was repaired for free. Repair was conducted during regular service for oil change, no extra time was required!
Sep 2017 78000 mi US $300	Front driverside wheel bearing replacement! Noticed a howling/bearing wear noise when steering to the right/turning! Wheel alignment wasn't required!
Dec 2021 178000 mi US $12000	Timing belt broke, need a rebuild or new engine! Most places wont attempt a rebuild!

Audi A4 in Georgia, United States Feb 2012 - Oct 2017
Sep 2012 15000 mi	Front driver side door's rubber seal was came out. Dealer glued it tightly but I have watch it out for other doors.
Feb 2013 26800 mi	Front door rubber seal came out again. Dealer replaced both weather strip completely.
Dec 2016 111000 mi US $3	Started burning engine oil 1 qt every 1000 miles. Added $3 engine sealer from amazon.com and problem solved.
Mar 2017 115000 mi US $20	Check engine light - P0421 Erased using OBD controller and never came back again.
Apr 2017 115000 mi US $20	Engine oil burning started again. warranty expired, adding engine oil every 1000~3000 miles when the light came on.

Audi A4 in Massachusetts, United States May 2014 - Aug 2016
Oct 2015 77000 mi US $85	leaking water pump

Audi A4 in British Columbia, Canada Dec 2012 - Jun 2018
Dec 2016 37200 mi C $1587	Flashing Engine Light and EDC lit. Fuel Injector failure. Bore scope found Fuel Injector w/ constant fuel leak. Fouled Spark Plugs and Oil smelled of Fuel. going thru Audi Canada for partial/all reimbursement
Jun 2018 45880 mi	Waste gate caused a check engine light. Waste gate is integral to turbo, turbo replaced. Free replacement under a Audi extended warranty, otherwise $3,000+

Audi A4 in North Carolina, United States Feb 2012 - Apr 2016
Apr 2014 62000 mi US $250	Vacuum leak, oil separator
Jun 2015 96000 mi US $900	Water pump failure. Replaced
Dec 2015 110000 mi	Crank case breather valve replaced
Apr 2016 119000 mi	Abrupt oil usage issues. service dept said needed new piston rings. 2012 was not covered under the recall.

Audi A4 in New York, United States Feb 2014 - Mar 2018
Jun 2015 38000 mi	Dead Battery check engine light - MIF sensor
Dec 2017 72000 mi US $240	my side mirrors glass fall on same day. Not covered by warranty . Ordered from the dealer and installed myself .

Audi A4 in Florida, United States Nov 2012 - Oct 2015
Oct 2013 34000 mi	One of the hoses in the engine bay had come loose and needed to be replaced. The car was in & out in 1 day and the impression i got was that the repair was very straightforward. No issues since getting the car back.

Audi A4 in Texas, United States Oct 2014 - Jun 2018
Oct 2015 36000 mi	Check engine light came on while driving, no change in way engine ran. Determined the crankcase breather valve, oil separator was the culprit.
Apr 2016 45800 mi	Service bulletin for crank case breather valve was to be replaced.
Mar 2018 81000 mi	Left and right upper guide link bushings Left and right engine mounts leaking hydraulic fluid

Audi A4 in New Mexico, United States Aug 2011 - Jun 2018
Nov 2015 45000 mi	Projection lenses were fogging from a leak on the driver's side. Assembly replaced under warranty.

Audi A4 in Ohio, United States Aug 2011 - Jun 2022
Aug 2014 54000 mi US $900	Leaking water pump
Mar 2015 63000 mi US $310	CEL for System Too Lean. Replaced leaking oil separator breather valve.
May 2016 81000 mi US $500	Replaced oxygen sensor.
Aug 2016 86000 mi	Excessive oil consumption (>4 quarts/1.5k miles). Pistons and associated gaskets replaced under warranty despite 85k miles on the car.
Sep 2017 98000 mi US $1500	Replaced both front wheel bearings.
Aug 2018 111000 mi US $461	Replaced faulty AC sensor
Apr 2022 142000 mi US $1700	Resealed upper cylinder head cover due to oil leak.

Audi A4 in Pennsylvania, United States Oct 2020 - Jun 2022
Nov 2021 103000 mi US $1500	decarbonize intake and injectors, replace spark plugs

Audi A4 in Florida, United States Jul 2011 - Jun 2012
Feb 2012 6000 mi	Rear panel was making a rattling noise when playing certain songs. Certain rare drum beats would hit the resonant frequency and make the rear deck sound like a blown speaker. A4 has no speakers in rear deck. When they repaired the rattle, they broke a piece of plastic. They ordered the part and repaired it. They brought it to my attention as they didn't want to have any cracks. They were very particular. I was happy. Great dealer service.

Audi A4 in California, United States Feb 2021 - Jun 2022
Jun 2021 67000 mi	Turbocharger failed; covered under TSB

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Audi A4 in California, United States Aug 2014 - Nov 2016
Oct 2014 45700 mi	Steering shuddered when parking at low speed. Dealer acknowledged but said it could not find anything wrong and said it was "normal". Pinch weld in body near rear strut tower was rattling. Dealer said there was not enough glue and fixed it. Dealer contacted audi corporate about shuddering problem in steering after I complained enough. Audi corporate recommended replacing hose in power steering. Dealer performed this task. Shuddering is 95% gone. I'm satisfied. Mmi knob broke off. Dealer replaced it.
Jan 2015 49000 mi	Clip holding frame/spring inside seat broke. Caused seat to lean back on one side. Dealer replaced plastic clip. Fixed.
Apr 2015 54300 mi US $55	Visor clip broke off. 54 bucks for a peice of plastic from the dealer! Looked it up online this is a common problem

Audi A4 in Florida, United States Nov 2017 - Jan 2018
Feb 2017 61000 mi	Thermostat housing issue Water pump A/C Compressor Engine was leaking oil. Decided to sell the car

Audi A4 in New Jersey, United States Sep 2016 - Jun 2022
Feb 2017 37000 mi	Heating system not working

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Audi A4 in Ontario, Canada Aug 2011 - Jan 2022
Mar 2014 39680 mi	Replaced bad injector cylinder number 4 - misfire code. Cleaned the intake ports at the same time.
May 2014 42160 mi	Replaced left front wheel bearing. Dealer replaced right wheel bearing as a matter of course - "just in case".
Feb 2016 66340 mi	Cold start misfire. Stumbling when cold under acceleration. Determined bad fuel injector cylinder 1. Decided to replace all four under recent Audi extended warranty campaign for fuel injectors.

Audi A4 in Virginia, United States Oct 2011 - Jul 2018
Dec 2012 12000 mi	Left Headlight burned out, Dealer said too early for this to have happened so checked entire system; found cause of problem and fixed. Checking the system is why in shop for 2 days.
Nov 2014 39100 mi	Weather seals on passenger doors came off and replaced under warranty.
Jan 2018 78000 mi US $1400	Brakes and Rotors replaced, used dealer as independent shops with the VAGCOM are more expensive than dealer.
Jul 2018 85000 mi US $2500	Carbon build up on injectors caused by direct inject resulted in check engine light and required cleaning to prevent other damage

Audi A4 in Ontario, Canada Apr 2012 - May 2014
Apr 2013 4120 mi	Dealer rotated Tires, which were vibranting from day of purchase,, as in new oil change,, tires roatation has made vibration worse,, Audi canada, will not resolve the problem.. stuck with wobble tires.
Aug 2013 6700 mi	Got tired of driving car with bad perelli tires, audi canada refuse to resolve,, traded in for 2013 AudiA4 ,, just to experience same problem again,, same bad tires issues,,, going in for tire balance and usual nonsense..

Audi A4 in Ontario, Canada Feb 2012 - Feb 2016
Mar 2014 28520 mi	Popping sound from rear over sharp bumps in cold weather. Rear bump stops and upper shock mounts replaced under warranty Whirring sound from front of car. Right front wheel bearing replaced under warranty

Audi A4 in New Jersey, United States Oct 2015 - Feb 2017
Feb 2016 50400 mi	remove throttle body and replaced N80 fuel evap valve, performed GFF scan, fault for 02 sensor, cause of faulty crankcase breather

Audi A4 in Pennsylvania, United States Jul 2011 - Sep 2019
Apr 2015 39300 mi	Wheel bearing

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Audi A4 in South Africa Apr 2017 - Dec 2017
Jun 2017 55180 mi	Rear brake pads and discs replaced as pads were worn.

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Audi A4 in Malaysia Mar 2014 - Jun 2015
May 2015 50220 mi $4000	One of the piston misfire, may require engine overhaul; update: still in shop two months later

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Audi A4 in Pennsylvania, United States Nov 2011 - Jun 2015
Jan 2015 42500 mi	Had to have carbon build up removed per the existing Audi tsb. Surprising it occurred this early since I drive mostly highway miles Had to have rear differential replaced. Believe the root cause was the axle leak detailed in tsb 421109

Audi A4 in Ontario, Canada Feb 2013 - Jun 2018
Mar 2013 16120 mi	right headlight washer was getting stuck in the extended position. dealership performed a tsb.
Feb 2014 26200 mi	faulty hood sensor, not resetting engine oil level measurement
Jan 2017 31200 mi C $100	cylinder misfire, diagnosed to be ignition coil. replaced.
Jan 2018 71 mi	check engine light - secondary exhaust carbon build up. build-up removed.

Audi A4 in California, United States Jan 2012 - Feb 2013
May 2012 4600 mi	Jerky and severely abrupt shifting in stop/go traffic and at stops on hills with DSG transmission. Dealer says "performs as normal."
Oct 2012 11800 mi	Second trip for jerky DSG transmission. Dealer again says "performs as normal."
Nov 2012 12400 mi	DSG reflash, fluid check; recalibration of Mechatronics unit
Dec 2012 16000 mi	2nd reflash of DSG; diagnosed as possibly faulty Mechatronics unit; none available in US. At this point I decided to pursue buyback under Song-Beverly act.
Feb 2013 16000 mi	Audi S4 bought back for jerky DSG transmission that dealer could not fix. Software reacts erratically to a small percentage of drivers who follow a similar throttle, brake input pattern. No fix for it.

Audi A4 in California, United States Dec 2012 - Dec 2017
Mar 2015 35000 mi	Thermostat failed closed. Dealer representative indicated this is due to the plastic t/stat housing distorting, causing the thermostat to bind. Dealer representative indicates design has not been changed -- new part is the same G336 Intake manifold flap sensor found faulty. Fault P2014
Jan 2017 14200 mi US $1200	Puncture to A/C condenser. Condenser replaced Cranking longer on cold start. Diagnosed as failing fuel pump Upper control arm bushings replaced

Audi A4 in California, United States Dec 2012 - Aug 2016
Jun 2013 10000 mi	Check engine light came on. Vehicle ran fine, OBD2 diagnostic revealed a very slight fuel mixture imbalance. Dealer said they replaced some parts of the fuel rail to injectors and updated the ECU program. Car runs a bit smoother now.
Nov 2014 20000 mi	Driver door weatherstripping came loose.

Audi A4 in California, United States Sep 2013 - Apr 2015
Nov 2014 37000 mi	Rear center seat belt buckle failed to latch. Identified 12+ months prior but this was the first opportunity to have it repaired. Thermostat failed at ~36,600 miles

Audi A4 in Michigan, United States Sep 2011 - Jan 2015
Jun 2013 25000 mi	Compressor failed. Had to order new one from Germany.
Dec 2013 34000 mi US $40	Sun visor clips both snapped in cold conditions. Center media knob black joystick also snapped off.
Jul 2014 43700 mi	Rear diff CV joint passenger side leaking. Repaired under warranty.
Sep 2014 47000 mi	Rear door, drivers side, upper speaker blown.

Audi A4 in Texas, United States Jun 2012 - Sep 2013
Jul 2012 11300 mi	Cold air was blowing intermittently. Dealer replaced sensor.

Audi A4 in California, United States Sep 2011 - May 2015
Jun 2014 33000 mi	driver side headlight was hazy. ventilation did not clear it up
Nov 2014 37000 mi	fault for sec air scan

Audi A4 in New York, United States Aug 2011 - Apr 2020
Jun 2012 12000 mi US $568	Supercharger auxiliary cooler was punctured by debris causing a coolant leak & requiring replacement. Not covered by warranty.
Apr 2013 26000 mi	IPod cable replaced after error message "Cannot read device" was received several times on device selection.
Sep 2014 49000 mi	Sunroof failed to open/close
Mar 2018 106600 mi US $500	Windshield wiper motor failed

Audi A4 in Washington, United States Sep 2011 - Jun 2022
Dec 2012 20000 mi	Nuisance Check Engine Light - Software upgrade was installed to ensure problem wouldn'r reoccur.

Audi A4 in Oklahoma, United States Feb 2012 - Apr 2012
Apr 2012 3000 mi	EPC light would come on and car would misfire under full throttle. Dealer swapped the number 6 coil pack with number 5 and problem solved.

Audi A4 in Illinois, United States Jul 2012 - Jun 2015
Jun 2013 8000 mi	Hood latch replaced
Sep 2013 9000 mi	alternator over charging, replaced voltage regulator for alternator
Sep 2014 20000 mi	Headlights condensation leaving marks, changed under warranty

Audi A4 in Iowa, United States Jan 2015 - Jun 2020
Dec 2017 47000 mi US $950	Front rotors and pads worn, replaced.

Audi A4 in Connecticut, United States Feb 2015 - Mar 2019
Jul 2015 49000 mi	Door trim
Dec 2015 58000 mi US $40	visor clip broke
Feb 2017 89000 mi US $77	Car was low on coolant. Owner refilled coolant and level dropped again. Dealer noted no leaks in system. Coolant level stable for now.
Aug 2017 97000 mi US $700	Left front wheel bearing needed replacing
Oct 2017 99000 mi US $144	Coolant level low Shop couldn’t find any leak. Continues to slowly drop over a period of several months

Audi A4 in Virginia, United States Oct 2014 - Apr 2017
Feb 2015 39100 mi	Starter button finish was peeling. Replaced by dealer.
Jun 2015 42000 mi	Rear struts failed and became very audible when driving on uneven surfaces. Dealer replaced both.
Mar 2016 49000 mi	Engine was burning a qt of oil every 3k miles. Dealer took oil sample for analysis, topped off oil and told me to come back when gauge read low again to send to Audi for next steps.

Audi A4 in Arizona, United States Aug 2014 - Oct 2021
Sep 2014 14000 mi	Engine throwing ecm codes. ECM replaced. Replaced all 6 fuel injectors.
Aug 2015 31000 mi	Thermostat failed. Replaced by dealer under warranty.
Oct 2015 33000 mi	During evasive maneuvers, dash would light up and sport-diff would report failed (no sport-diff installed). Steering assist failed. Stop/Restart would clear the codes. Diagnosed to be a bad voltage regulator.
Dec 2015 36000 mi	Loud vibration/noise at idle and accelerating from stop. Loose/missing exhaust clamp. Replaced.
Sep 2016 43000 mi	Visor clip broke. Replaced. Dealer stated that I need to use the 'European' method to return visor to storage position using thumb and forefinger. 'One-touch' up/down feature not working. Dealer re-adjusted pinch protection.
May 2018 57000 mi US $580	Replaced front rotors and pads.
Sep 2019 68000 mi US $8000	DSG transmission failed giving me only odd gears. Bought the control module for $8000. Did not solve the problem. Required transmission replacement @ $18K. After mentioning the class action suit against them at the time, they forgave $12K. Never shifted right after that.
Feb 2020 55000 mi US $1000	Mass Airflow sensor was replaced. $750 just to remove the supercharger to replace a $25 part.

Audi A4 in Illinois, United States Mar 2015 - Nov 2018
Dec 2016 42000 mi	Mmi center joystick knob broke

Audi A4 in Oklahoma, United States Apr 2013 - Jun 2018
Mar 2017 72000 mi US $345	Oil filter housing
May 2018 78000 mi US $1300	Rear brake caliper and caliper motor we're toasted so they had to be replaced. $800 in parts and $500 in labor.

Audi A4 in Manitoba, Canada Jan 2015 - Mar 2018
Dec 2017 68200 mi C $200	Requested code for engine light.
Mar 2018 71300 mi	Centre instrument cluster display went blank. Removed instrument cluster to investigate, look for bulbs, etc. No easily servicable parts found. Someone on a forum said give it a whack. Tried that as a last resort before giving in to going to dealer for repair and it worked! ...however it went out again yesterday (was good for 2 weeks)...will try same method again but doubtful...

Audi A4 in Maryland, United States Jul 2014 - Apr 2018
Nov 2014 28000 mi	burning oil at a pretty high rate (about 1 qt every 1k mile or less. The dealer performed an oil consumption test and had the piston rings replaced on all cylinders.
Mar 2017 56000 mi US $200	Engine cover underneath the car needed to be fastened.

Audi A4 in Alabama, United States Nov 2014 - Dec 2018
Sep 2016 42000 mi US $85	Blower fan motor faulty. Also replaced regulator. 8K1820021C - Fan 8K0820521B - Regulator
Oct 2017 57000 mi	Chain tensioners were replaced due to excessive noise on cold startup per TSB #2039995/2.

Audi A4 in British Columbia, Canada Nov 2015 - Jun 2022
Jul 2018 61380 mi	Thermostat stuck closed. Car overheating. Car was towed to the dealership. Water-pump replaced at same time due to leakage. 200 paid and rest covered by warranty..

Audi A4 in Connecticut, United States Jan 2014 - Dec 2015
Jun 2015 43000 mi	oil kept burning every 5000 miles, they changed out some valve

Audi A4 in Ontario, Canada Oct 2013 - Apr 2019
Feb 2014 22600 mi	Nob fell off

Audi A4 in Pennsylvania, United States Jan 2014 - Oct 2016
Dec 2014 48000 mi	Fixed loose ground connection for rear window defroster

Audi A4 in Virginia, United States Jan 2014 - Aug 2016
Aug 2016 30000 mi	The transmission felt like it was hunting gears when slowing down. Once around 20 mph and the second one doing around 55-60 mph. Fluid change might have fixed it, but even this would be very expensive. Got rid of the car.

Audi A4 in Tennessee, United States Jan 2015 - Feb 2016
Feb 2016 52000 mi	Replacement of leaking water pump

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Audi A4 in New York, United States Nov 2016 - Jan 2018
Mar 2017 92000 mi US $500	Replaced passenger side front wheel bearing.

Audi A4 in Florida, United States Jul 2011 - Nov 2014
Jan 2014 24000 mi	windshield washer nozzle, sprays above windshield. parking break button metal covering-pealing off. burning smell during hard acceleration with AC on.
Jun 2014 29000 mi	Replaced parking brake button, metal covering was peeling off.
Nov 2014 32000 mi	Only issue was exhaust smell inside cabin during hard acceleration. Dealer replaced air box inside but did not resolve the problem.

Audi A4 in Washington, United States Mar 2018 - Sep 2018
Jun 2018 50000 mi US $1200	Secondary Intercooler cracked because of a rock. Needed to be replaced and cooling system reinstalled and fixed.

Audi A4 in Ontario, Canada Jul 2016 - Jun 2022
Feb 2018 62000 mi C $120	Check engine light on due to carbon buildup in secondary air intake. Cleaning performed by Audi under extended warranty. Cost was for a couple clips and coolant not covered.
Sep 2021 84940 mi C $400	Vibration in front end which also caused brake rotor to warp, fixed by replacing left front wheel bearing
Jun 2022 90520 mi C $600	Replaced rear wheel bearing due to loud humming noise

Audi A4 in Virginia, United States Sep 2011 - Aug 2016
Apr 2013 13300 mi US $1100	Rock hit radiator. Radiator leaked.
Jun 2014 24000 mi	Car overheated. Replaced thermostat.
Apr 2015 30000 mi	rear window shade not working. audi secondary air injection system P0491 audi secondary air injection system P0492 Fixed on third visit, cleaned carbon build-up with walnut shell blasting.
Apr 2016 36300 mi US $200	replaced battery

Audi A4 in North Carolina, United States Sep 2011 - Sep 2017
Sep 2012 8000 mi	The weather stripping on the driver door came loose and was hanging out the bottom of the door when it was closed. Dealer replaced the stripping under warranty.
Dec 2016 52000 mi US $80	Hood latch sensor malfunctioned.

Audi A4 in Connecticut, United States Jul 2014 - Jul 2018
Nov 2015 42900 mi	The dealer diagnosed a bad clutch based on my report that revs were "hanging" (i.e. rpms were not dropping as expected) when I engaged the clutch on a first to second shift. The car is driveable and I have not repaired it yet. Audi refuses to warranty.
Mar 2016 45000 mi	Bad shock absorber replaced under warranty
Jun 2017 50000 mi US $300	Replaced weak battery

Audi A4 in California, United States Oct 2013 - May 2021
Nov 2015 34000 mi	Engine Rear Main Seal leaking, needed replacement, required 11 hours of labor covered by warranty
Oct 2016 46700 mi US $750	rear Inner CV cups had a slow leak, known issue but Dealer wouldn't fix under warranty previously

Audi A4 in Alberta, Canada Sep 2014 - Dec 2015
Mar 2015 19220 mi	Driver side rear shock leaking

Audi A4 in Ontario, Canada May 2012 - Mar 2018
Apr 2013 3400 mi	There was a loud rattle coming from the front end caused by broken caliper springs. The solution was to replace all the front caliper springs. TSB # 2030704/1
Jun 2014 12400 mi C $200	Bluetooth connection to phone seems to cause intermittent total lack of sound

Audi A4 in Colorado, United States Sep 2013 - Jun 2022
Dec 2013 8000 mi	Hole in auxiliary radiator.
Sep 2016 42000 mi US $800	Control module for windshield wipers not working and needed to be replaced.
May 2018 60000 mi US $700	Bad front wheel bearing

Audi A4 in Ontario, Canada Nov 2011 - Jan 2021
Dec 2014 25420 mi	Loose window trim was squeaking.
Jun 2017 41540 mi C $20	Replaced RH trunk hinge cover (old one had broken clips and would not stay in position). 10 minutes to repair. Replacement part purchased from eBay.

Audi A4 in Ohio, United States Aug 2015 - Jun 2017
Oct 2015 30000 mi	Intermediate steering shaft replaced

Audi A4 in Michigan, United States Jul 2015 - Jan 2019
Aug 2015 44500 mi	Brake wear sensor harness had a damaged wire. Replaced under warranty.

Audi A4 in Washington, United States Sep 2013 - Feb 2024
Jul 2014 39000 mi	When in sixth gear, the car made a ticking sound the emanated from the manual gearshift. It was like a vibration of two materials rubbing together. Replaced gearshift linkage and problem was still present thereafter.
Aug 2014 41100 mi	Car still made a rubbing/clicking noise when manual transmission was in 6th gear. Dealer found that it was the leather shift boot. They lubricated the leather, but the problem came back within 1 day of getting the car back. Moon roof squealed when traveling along its track near close. Dealer follow protocol to lubricate the path, but the problem did not go away. After replacing gearshift linkage from July repair, the third gear shift gate had a catch so that during shifting (manual), the gearshift didn't feel like it was seated completely in third gear. It was immediately noticeable.
May 2015 55900 mi	Sixth gear shift gate made a ticking sound while driving.

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Audi A4 in Queensland, Australia May 2017 - Jul 2018
Jun 2018 67580 mi A $400	PCV valve replacement

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Audi A4 in California, United States Aug 2016 - Sep 2021
Jan 2017 45000 mi	Windshield replaced

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Audi A4 in Utah, United States Apr 2011 - Nov 2024
Mar 2012 15000 mi	Air conditioning had very bad "dirty socks" smell due to mold / midew growth during winter season.
Mar 2014 45000 mi US $25	Sun roof would open but chattered when closing and at times would not close. This has been a repetitive problem. Musty, moldy smell from AC. Sprayed Lysol into AC air intake and replaced cabin AC filter. Seems to be a yearly springtime ritual.
Dec 2017 73000 mi	Oil consumption test started on 21 Dec 2017.
Mar 2018 77000 mi US $400	Failed oil consumption - rebuild bottom end of engine - pistons, bearings, rings, timeing chain and chain tensioner - In addition new plugs and coil packs,
Apr 2018 77000 mi US $1005	Left front wheel bearing failure, aligned all four wheels and calibrated backup camera
May 2021 98000 mi US $800	New Brakes and Rotors Front and Rear

Audi A4 in Florida, United States Nov 2015 - May 2017
Jun 2016 24000 mi	Excess oil consumption problem due to high crank case pressure, new pistons, rings and all other items associated with the oil consumption AoA recall were replaced. In addition dealership replaced the timing belt and tensioner no charge.

Audi A4 in North Carolina, United States Jan 2013 - Mar 2017
Feb 2014 81300 mi US $85	Leaking air valve. Replaced
Sep 2014 92000 mi	High oil consumption led to replacement of pistons
Jun 2016 112000 mi US $200	Coil packs needed replaced
Feb 2017 124000 mi US $2500	Timing chain stretched, tensioner failed, pistons hit valves

Audi A4 in Washington, United States Mar 2011 - Jun 2022
Jul 2013 30000 mi	Stage 1 fix for oil consumption (1 quart per 2000 miles). Replaced PCV and crank seals. Updated ECU.
Nov 2013 35000 mi	Transmission software update for jerkiness in stop and go traffic. Rear window washer nozzle clogged.
Jun 2014 41000 mi	Transmission shifting hard at random times. Dealer performed a transmission adaptation (no mechanical repairs).
Jul 2017 78000 mi US $150	Stage 2 fix for oil consumption (1 quart per 900 miles). Replaced pistons.
Jul 2021 104000 mi US $300	Replaced fuel injectors due to misfiring.

Audi A4 in California, United States Jun 2013 - May 2018
Feb 2015 55900 mi US $1500	Two blown shocks, needed to replace all four
Nov 2015 61000 mi US $85	Failed coilpack
Jul 2016 64300 mi US $85	Failing coilpack causing misfires under acceleration. Coilpack replaced.
Sep 2016 66000 mi US $35	Failed coilpack
Sep 2017 71500 mi US $450	Leaking PCV valve; replaced

Audi A4 in California, United States Feb 2011 - Jan 2018
Sep 2011 5000 mi	problem with software for backup cam; TSB exists, but no fix yet; dealer will notify when fix is found.
Mar 2012 11000 mi	Malfunctioning backup camera, but only happens once every 2-4 weeks.
Nov 2013 29000 mi	Backup camera failure. Camera unit and cables replaced.
Sep 2014 40000 mi	CEL came on. Replaced leaking PCV valve.
Feb 2015 43000 mi	Backup cam not working. Replaced cam and data cable.
May 2017 65000 mi US $1300	Replaced engine mounts
Dec 2017 73000 mi US $622	MAF replaced

Audi A4 in Washington, United States May 2011 - Jun 2022
Jun 2011 1000 mi US $500	Parking lot rash from another car--dealer repaired/repainted, then installed clear bra as planned.
Jun 2013 15000 mi	Audio system had surge, then intermittently lost turn signal audio cue. Dealer found no faults on diagnostics or overnight. No recurrence.
Sep 2016 37000 mi	Crankcase breather/vent valve and crank seal replaced under warranty for oil consumption recall/testing program. Car undergoing oil consumption test.

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Audi A4 in New York, United States Dec 2010 - Oct 2013
Sep 2011 5000 mi	rear passenger door lock is not working. dealership ordered replacement lock assembly and i will be bringing car back in a week or so to have it installed. driver side front window didn't always go all the way up, it would stop mid way as if anti-pinch system detected something in the way. window motor was taken out re-calibrated and then reinstalled. replacement lock assembly has been installed and everything is working properly. replacement lock assembly has been installed and everything is working properly.

Audi A4 in South Carolina, United States Nov 2010 - Oct 2011
May 2011 3100 mi	Transmission shifting roughly in 1st and 2nd gear both upshifting and downshifting. Dealer performed software upgrade for the problem. It is now definitely better, but not as smooth as I would like.

Audi A4 in Iowa, United States Sep 2010 - Jun 2017
Jan 2016 14000 mi US $200	Misfire. Ignition coils replaced.

Audi A4 in Virginia, United States Sep 2013 - Mar 2018
Sep 2016 94000 mi	Just after 80,000 miles, my A4 began burning oil excessively. This was because of the known oil burning issue covered under the class action lawsuit up to 80,000 miles. Audi USA refused to assist in the repair - estimated at $7,000.
Apr 2017 103000 mi US $9000	My 2011 Audi A4 continues to burn oil at an alarming rate. Currently the reading will go from max to min within just over 1,000 miles. The issue became severe and was first looked at just over the 80,000 mile class action lawsuit warranty repair period. Audi USA refused to offer any assistance for what is clearly a manufacturing defect. I was quoted between 6k-9k to repair the issue myself, which means my car is totaled by this Audi manufacturing issue.
Nov 2017 112000 mi	Engine stalled twice while driving. Had it towed to the dealership where they determined it was a failing fuel pump. While it was in the shop, I also had regular maintenance performed.

Audi A4 in Kansas, United States May 2011 - May 2013
Oct 2011 5000 mi	Sunroof squeaked upon closing. Dealer adjusted to stop squeak.
Nov 2011 6000 mi	Seatbelt latch button on seatbelt fell off. It was replaced.

Audi A4 in North Carolina, United States Oct 2010 - Jun 2022
Nov 2012 16200 mi	Car burns oil. Dealer replaced several parts and asked us to come back after 600 miles for inspection.
Feb 2013 16900 mi	Still burning oil, dealer installed new rings. Seems to have worked. The digital oil level sensor seems to be flaky now, but all else is ok. Once the sensor dies, dealer will replace.

Audi A4 in Virginia, United States Nov 2010 - May 2015
Aug 2011 14000 mi	Back-up camera would occasionally malfunction but dealer ordered replacement camera and installed it under warranty.
Sep 2014 55000 mi US $90	Oil separator pump was bad (too strong), caused air leakage through rear main engine seal. Oil separator pump replaced.
Apr 2015 63000 mi	Car consumes 1 quart of oil in about 1700 miles. Still in the testing phase. But the manager said Audi will likely be replacing the pistons and rings.
May 2015 63000 mi	If I had continued with the test they say it would have been enough to cover the piston and ring replacement, but I did trade it before completing the test.

Audi A4 in New Jersey, United States May 2011 - Jan 2017
Apr 2011 12000 mi	Sunroof failed to close. Fix sunroof.
Jun 2011 18000 mi	One of the doors on the heating/AC system flaps and makes a loud thud noise every time you break the car to a stop or accelerate.
Jul 2011 18100 mi	HVAC control unit replaced, HVAC hose replaced. HVAC unit was causing noise. Over $5,000 of cost covered by Audi. car radio replaced as defective HVAC control unit replaced, HVAC hose replaced, and car radio replaced as defective. HVAC unit was causing noise. Over $5,000 of cost covered by Audi.
Dec 2011 38000 mi	Steering Wheel radio control worked on and off. Switch was replaced.
Feb 2012 45000 mi	Engine burning oil. Changed PCV valve.
Apr 2012 50700 mi	Sunroof gets stuck open. Dealer repaired.
Jan 2013 82000 mi US $150	Car was badly misfiring. Fixed with a can of fuel injection cleaner.
Apr 2013 91500 mi	Car was badly misfiring for the second time. This time they figured it was 2 ignition coils that needed to be replaced.
May 2013 94000 mi US $4250	Pistons and rings needed to be replaced.
Sep 2013 111000 mi US $700	Bearing needed to be replaced.
Dec 2013 125000 mi US $200	2 ignition coils had to be replaced. Have replaced all 4 now.
Oct 2014 166700 mi US $1	Car needed new rear shocks.
Dec 2014 175000 mi US $100	Breather Valve Replacement
Oct 2016 267700 mi US $200	Engine Coil Wheel bearing replaced.

Audi A4 in Ohio, United States Nov 2012 - Jun 2014
Jun 2014 6000 mi	battery repaced, under warranty. Only 3 years old

Audi A4 in Wisconsin, United States Jan 2013 - Jun 2015
May 2015 32900 mi US $100	Center brake light module malfunction error. Needed replacement.
Jun 2015 35000 mi US $309	Faulted power supply relay (J329). Car stopped running and would not start. Dealer took 3 hours to diagnose.

Audi A4 in Iowa, United States Oct 2010 - Jun 2015
Jan 2012 44000 mi US $900	replaced wiper arm

Audi A4 in Pennsylvania, United States Oct 2010 - Jan 2014
Dec 2013 17000 mi	Engine was burning oil.

Audi A4 in California, United States Mar 2011 - Jan 2016
Jan 2012 48300 mi	The rear door seals became unglued. This had previously happened (and was re-glued) @ 1000 miles. This time, the dealer decided to replace the door seals at no cost.
Jun 2015 65000 mi US $1000	Oil seal was leaking

Audi A4 in Massachusetts, United States Jan 2015 - Oct 2017
Oct 2017 77000 mi US $700	Replace Front wheel bearing

Audi A4 in Ohio, United States Jun 2010 - Jul 2016
Jul 2012 20500 mi	Car would occasionally have a rough time starting. Engine would cough and revs would stay below 800RPM.
Feb 2015 48000 mi	Oil consumption test: piston rings were replaced. No charge as this is a known problem with Audis.
Oct 2015 56000 mi US $350	Oil separator failed leading to low oil pressure warning. Part was replaced
Feb 2016 61000 mi US $900	front right wheel bearing was causing a droning noise. bearing was replaced.

Audi A4 in Connecticut, United States May 2014 - Jun 2016
Jun 2015 37000 mi	High oil consumption test part 1.

Audi A4 in Arkansas, United States Jan 2011 - Jan 2021
Dec 2014 101000 mi US $550	Oil consumption issue, replaced PCV valve and front crankshaft seal
Mar 2015 103000 mi	Excessive Oil Consumption due to improper clearances. Replaced the pistons and piston rings.

Audi A4 in Michigan, United States Nov 2010 - Jul 2022
Dec 2011 14000 mi	Key fob replaced for inability to operate door locks.
Jun 2014 49000 mi	Delay in shifting, and throttle application - and trans hunting or waiting to find a gear.
Jun 2018 94000 mi US $15	charged AC with a can of refrigerant.
Dec 2021 108000 mi US $150	New Front Rotors
Jun 2022 110000 mi US $250	Replace water pump, water pump belt and lower pump hose (as precaution)

Audi A4 in Kansas, United States Apr 2018 - Oct 2021
May 2018 88000 mi	Headlight level sensor was broken, HID headlights pointed straight down while driving; Replaced sensor and headlights worked fine
Jun 2018 90000 mi US $150	AC blower motor died and was replaced Turbo was giving underboost and overboost codes; had classic loose wastegate issue; turbo was replaced

Audi A4 in New York, United States Apr 2011 - Sep 2018
Jan 2018 33000 mi US $100	Replace turbo
Sep 2018 35000 mi US $1350	Replaced all brakes and Rotors. Frond and rear

Audi A4 in Alberta, Canada Mar 2015 - Jun 2018
Jul 2016 67340 mi C $1065	both front wheel bearings replaced
Dec 2016 78120 mi	Previous bearing wore out and leaked grease. Replaced under warrenty
Apr 2018 10807 mi C $1021	replaced rear shocks

Audi A4 in Massachusetts, United States Mar 2011 - Jun 2011
Apr 2011 10000 mi	Driver side heated seat not working. Dealer replaced the part.

Audi A4 in Oklahoma, United States Dec 2010 - May 2015
Jun 2012 19000 mi	The car randomly stuttered then the engine would turn itself off. After several days of doing this eventually would not start at all. Replaced fuel control solenoid.
Mar 2014 42000 mi	The coil packs on each cylinder were replaced. The car was idling very rough, EPC and engine light came on while driving.
Jun 2014 43000 mi	There was a creaking sound coming from the rear of the vehicle anytime there was any weight in the trunk or rear seats. The found a loose exhaust mount and lubricated the bushing in the rear suspension.

Audi A4 in Illinois, United States Aug 2010 - Jul 2023
Aug 2014 28500 mi	Excessive oil consumption. Needed to add a quart after roughly 1300 miles. Dealer agreed to perform Phase I oil consumption test (still under warranty). Replaced crankcase valve seal and updated software. If doesn't work, Phase II is pistons and rings.
Sep 2016 48000 mi	Oil consumption problem has worsened again - have driven only 2400 miles before needing another quart. Dealer performing additional tests to determine next steps. Need to return to dealer after 1000 miles to measure consumption.
Jan 2017 26800 mi	Continuing oil consumption issues. Dealer replaced pistons and rings at no cost.
Feb 2022 78000 mi US $450	Replaced leaking valve cover gaskets and lower oil switch

Audi A4 in North Carolina, United States Oct 2014 - Apr 2017
Nov 2014 57000 mi US $1005	Oil pan drain plug replaced Had been stripped out.Just bought the car nobody would admit to causing the problem The audi dealership did the last service that showed up on car fax but said they didn't do damage the place I bought said i dont know
Jul 2015 66000 mi US $332	Center brake light replaced , and oil change .
Feb 2016 69000 mi	Crankshaft pulley changed to fix oil consumption issue

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Audi A4 in Texas, United States Aug 2015 - Jun 2022
Sep 2017 63000 mi US $600	Replaced leaking rear main seal.
Nov 2021 98000 mi US $100	Replaced ignition coils and PCV rubber parts.
Feb 2022 99000 mi US $500	Replaced front struts due to age. I had abnormal tire wear that the tire shop said was due to the struts.
Jun 2022 102000 mi US $800	Leak of coolant from water pump

Audi A4 in Georgia, United States Jan 2011 - Dec 2013
Jun 2011 7000 mi	Rough idle after cold start. Fixed per TSB.

Audi A4 in South Africa Mar 2015 - Jul 2016
May 2016 72540 mi R 2000	Replace faulty boot lock

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Audi A4 in Washington, United States Apr 2011 - Dec 2014
Jun 2011 1000 mi	Sunroof mechanical failure/factory bulletin called for motor replacement.
Nov 2011 5000 mi	Electro-mechanical Parking Brake failed. Warning light came on instrument panel, parking brake stopped working completely. A complete new electronic switch assembly was installed after they sent the failed switch to Germany for inspection.

Audi A4 in California, United States Nov 2010 - Sep 2016
May 2011 4000 mi	CD player stopped working. Message said it was damaged. Dealer reset it (no real repair needed) and it works fine now.
Oct 2013 30800 mi	I don't recall exactly what was replaced. Something had come loose and caused various issues.
Aug 2016 68900 mi US $640	Rear door lock actuator was malfunctioning.

Audi A4 in Quebec, Canada Mar 2011 - Apr 2015
Dec 2014 62620 mi C $175	Ignition coil pack was faulty. Audi dealer had part in stock and replaced.

Audi A4 in Manitoba, Canada Jul 2011 - Jun 2022
Sep 2012 5580 mi	Blind spot warning system seems to be out of calibration. Dealer was unable to replicate problem.

Audi A4 in Texas, United States Feb 2011 - Dec 2017
Sep 2015 52000 mi US $1000	Engine code P0299, turns out to be turbo charger failure. Issue is identical to this TSB, but Audi claims my VIN isn't covered. TSB#TSB-21-13-14 Summary: AUDI: ON SOME VEHICLES THE TURBOCHARGER WASTE GATE FLAP IS LOOSE. DTC P0299
Sep 2017 64000 mi US $1000	Water pump replacement to fix CEL
Nov 2017 65131 mi	Stage 2 Oil Consumption

Audi A4 in Ontario, Canada Aug 2010 - Oct 2016
Aug 2011 14260 mi	Occasional rough idle on start-up which would disappear after no more than 30 seconds. Dealer found trouble code and an existing TSB on the problem. Performed work which included an oil separator.
Jul 2012 29420 mi	occasional pre-detonation sound (pinging) on acceleration; occasional slightly rough idle which can occur at any time (warm/cold).
Feb 2013 41540 mi	knocking sound when accelerating e.g. 6th gear from 2,000 rpm. Happens intermittently. No codes. Used scope to look for carbon build up or leaking injector. Nothing found. Could not reproduce it again when measuring ignition timing.
Mar 2013 44640 mi	Passenger side headlamp washer door hinge broken on one side causing the door not to close properly. Required a whole new bumper skin to repair! Took repeated visits to shop before Audi would agree to cover it under warranty.
Jan 2016 29920 mi	Excessive oil consumption
Oct 2016 89900 mi	Excessive oil consumption of 1 litre per 2000 km. Rebuilt engine with new pistons, rings, timing chain, timing chain tensioner, cam bridge.

Audi A4 in Michigan, United States Nov 2010 - Sep 2016
Jan 2011 15700 mi	Audio was lost due to an amp/signal booster failure. Part had to be ordered from Germany, no time frame was provided for part availability. Part was received and installed. Symptom presented itself (audio cut out) on the drive home. I suspect this isn't the last time I'll have to deal with the audio issue.
Feb 2013 20900 mi	Amp replaced to fix audio issue.
Sep 2013 25000 mi	Failed water pump - slow leak. Installed: 06H121026CF water pumprnWHT006407 seal, 06H121131C union
Sep 2014 33000 mi	Engine idled rough. Dealer replaced ignition coils under warranty
Feb 2016 40000 mi US $246	Mis-fire due to ignition coil failure. Failure was likely an infant mortality failure as all ignition coils were replaced in October 2014, which is approximately 11,000 miles ago.

Audi A4 in District of Columbia, United States Oct 2010 - Sep 2013
Nov 2010 700 mi	Electronic parking brake episodically difficult to release. Problem fixed. Window regulator was not working properly. Item fixed. Electronic parking brake episodically difficult to release. Problem fixed. Window regulator was not working properly. Item fixed.
Aug 2011 6000 mi	Window regulator not working well. Window sometimes closes right after opening.
Sep 2011 6000 mi	Window regulator came in. Problem fixed. Sensor indicated low tire pressure when tires were properly inflated. Problem tracked to software. Fixed by reflash.

Audi A4 in Michigan, United States Aug 2014 - Jun 2022
Feb 2017 123000 mi US $623	Replaced rear strut assembly. One strut leaking badly.
Feb 2021 152000 mi US $8149	Vehicle was suffering from oil consumption. I decided to have it rebuilt with new pistons as well as water pump, timing chain, clutch, and related parts, seals, and fluids. Essentially a total engine overhaul. It is no longer losing oil.

Audi A4 in Massachusetts, United States Apr 2013 - Apr 2015
Feb 2014 27700 mi	Piston replacement due to high oil consumption.

Audi A4 in North Carolina, United States Sep 2013 - Oct 2015
Apr 2015 70800 mi US $700	Cooling fans running high-speed only; fans continue to run after engine off. Diagnosed as fan control module and relay. Fan control module not in stock; will schedule install once part arrives.
Oct 2015 80000 mi	car consuming 1 qt oil per 1100 miles. Proposed repair was to replace pistons and rings. Decided not to do the repair.

Audi A4 in Ohio, United States Mar 2014 - Jul 2016
Mar 2016 97000 mi US $100	Oil consumption issue

Audi A4 in Tennessee, United States Jul 2010 - Jun 2022
May 2011 14000 mi	Felt like engine missing (erratic car vibration at idle, stopped). Dealer pulled codes, said no misfire. Returned car, will monitor and take back when more pronounced.
Sep 2013 46000 mi	Fuel cap failed pressure test during annual emissions inspection. Cap replaced.
Jun 2014 53000 mi US $110	Cylinder 4 misfires under heavy load. Check engine light came on. Replaced coils and spark plugs, fixed problem.
Jun 2015 65000 mi	Check Engine light came on, diagnostic indicated something related to nonsense intake position reading. Removed/cleaned throttle body, reinstalled. Cleared CEL, no additional message after 2k miles.
Mar 2016 71000 mi	Oil consumption jumped rather rapidly. Dealer replaced PCV as part of known issue.
Apr 2016 71500 mi US $300	Rough idle and acceleration. Opened up to do carbon cleaning on intake, and discovered intake manifold parts broken off and one blocking intake to cylinder 2. Cleaned carbon buildup and replaced intake manifold
Jun 2016 74000 mi	Stage 2 repair performed for excessive oil consumption. Replaced pistons and all seals. I had a damaged intake manifold and wonder if the cylinder ingested part of the manifold, damaging a piston ring.
Jun 2017 84000 mi US $5	Had a slow oil leak from the back solenoid used to adjust the exhaust cam. Had Audi replace pistons under warranty per engine oil consumption TSB stage 2. Technician failed to install o-ring on one of the 8 solenoids, leading to a small oil leak. Had to completely clean engine compartment to find where it was coming from. Repair took 5 minutes once I found it.
Mar 2018 90500 mi US $140	Car had bad wheel noise and uneven tire wear - tire shop told me that the camber was off. Took to an alignment shop that specialized in German cars, and they indicated that the control arms have gone bad. Will have to replace control arms prior to alignment. Was quoted $2800 for the job... will attempt to do myself (parts are around $650).
Jan 2022 126000 mi US $225	Upholstery on headliner began sagging about 2 years ago. Found a replacement from a junkyard in good condition for $225. Was quoted $550 by local shops to fix it, so cheaper to just replace with used.

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Audi A4 in California, United States Jul 2010 - Jan 2012
Oct 2010 1000 mi	My DSG S4 shortshifts in manual mode. In automatic mode it will shift at redline no problem. Apparently most new S4s have this issue. Replaced front driver-side power window motor
Apr 2011 3000 mi	Engine coolant thermostat replaced Rear differential leaking oil, replaced seal.

Audi A4 in Virginia, United States Jul 2010 - Dec 2017
Aug 2010 1000 mi	front bumper was damaged during shipping. the bumper was replaced and paid for by the dealer
Apr 2011 4200 mi	check engine light came on. it was a faulty evaporation valve.
Apr 2012 9300 mi	The aluminum trim on each front door had to be re-installed to eliminate an annoying rattle.
Sep 2013 18000 mi	I experienced a single bout of unintended acceleration. I had to put the car in neutral in order to stop what was a somewhat heavy self acceleration. It only happened once. Dealership could not reproduce and therefore did nothing.
Jun 2014 22000 mi	Chunking from front end over bumps at low speed. The wishbones were replaced under warranty. On the highway, the engine revved to redline because the transmission did not engage a lower gear when pressing the gas pedal to accelerate. The car coasted in neutral instead before eventually selecting a lower gear.
Jul 2015 26000 mi US $395	Reverse camera cable was bad so camera quit working. Cable needed replacement.
Mar 2017 32000 mi US $2000	A pressure valve in the engine needed to be replaced. The dealer claims that it may have gone bad because I don't drive the car often/long enough.

Audi A4 in California, United States Jun 2010 - Jul 2011
Dec 2010 7000 mi	Thermostat got stuck. Warning light came on. Would have cost about $650 after labor and parts, but it was under warranty. Thermostat replaced.

Audi A4 in Ontario, Canada Jun 2010 - Jun 2018
Nov 2014 72540 mi C $700	Both sets of front bearings replaced
Jun 2015 77500 mi C $600	Leaking transmission seal discovered during transmission oil change. 2.5 hours of labour required + parts.
Sep 2016 86800 mi C $800	Replace oil pan (corner rust bubble) & repair incorrect work done by Audi dealer - for transmission oil change (the vehicle was bought to a garage specializing in Audis.).
Dec 2016 89900 mi C $4000	Seals on transmission failed. Transmission removed, seals and pump replaced. Underlying cause is speculative, but it may be that the dealer (who replaced the transmission fluid as part of scheduled maintenance) overfilled the transmission. Engine block seal failed, oil leaking from engine

Audi A4 in California, United States Jul 2010 - Jun 2016
Sep 2015 34000 mi US $1200	Thermostat stuck closed, flatbeded to dealer, was replaced previously on recall ~ 7k miles, now again at 33k miles

Audi A4 in Illinois, United States Jan 2011 - Apr 2015
Sep 2014 82000 mi US $600	Thermostat failed and was replaced.

Audi A4 in District of Columbia, United States Jul 2010 - Jun 2016
Dec 2010 1000 mi	One touch up feature on drivers side window not working properly. Trip in Dec '10 did not fix it, have to go back to dealer.
Mar 2011 4000 mi	Fixed window switch.

Audi A4 in Florida, United States Dec 2010 - Jan 2018
Mar 2012 19000 mi	Finish peeling off start button. Dealer is replacing
Sep 2014 49000 mi	Excessive oil consumption. Service performed per manufacturer TSB. Issue seems to be resolved
Jan 2018 72000 mi US $900	Thermostat replacement.

Audi A4 in Washington, United States Oct 2010 - Sep 2011
Jan 2011 5800 mi	Warning light came on for rear differential. Brought car in, they couldn't find any error codes logged.

Audi A4 in Washington, United States Sep 2010 - Apr 2021
Feb 2011 1000 mi	Rain sensor and auto light sensor malfunction. This ultimately led to inability to turn on Side Assist as well. Apparently both problems fixed with new sensor.
Apr 2015 25200 mi US $100	Sudden shift to neutral from highway speed. Problem with DSG sensor (mechatronic unit)
Sep 2015 28000 mi US $100	Engine thermostat
Apr 2018 35000 mi US $3200	Adaptive Cruise Control module, air conditioner valve

Audi A4 in Minnesota, United States Sep 2010 - Jun 2011
Oct 2010 2000 mi	Check engine light was on. Found the second bank intake was stuck open. Was taken back after the parts came in to be repaired. Took about 5 hours and they gave me a loaner car.

Audi A4 in Connecticut, United States Sep 2010 - Sep 2014
Oct 2010 1000 mi	RR Speaker rattled as if blown from delivery. Dealer ordered and replaced speaker and found manufacturing defect with Bang & Olufsen speaker manufactured with double cone.
Jul 2012 19000 mi	MMI HDD (Hard Disk Drive) failed resulting in replacement of Audi information module.
Mar 2013 26000 mi	Low oil level warning alerted after 2500 miles (since last oil addition). Dealer performed oil consumption test and found oil consumption within spec. Interval to add oil dropped from 5K to 3K to now 2.5K. Regular service is at 10K.
Mar 2014 38000 mi	Excessive vibration in right front speaker repaired by adding extra insulation to keep speaker from vibrating against door panel.
Jun 2014 40000 mi US $7	Engine low on oil between oil changes. Added 1 quart.

Audi A4 in Ohio, United States Sep 2010 - Apr 2018
Sep 2014 36000 mi	Door panel vibrating when certain radio frequencies were played.

Audi A4 in Oregon, United States Sep 2010 - Oct 2015
Feb 2011 5000 mi	Coolant level low. System checked for leak, none found. Coolant added.
Oct 2011 15000 mi	Faulty thermostat was replaced under warranty Both door panels squeak while driving. Shop followed Audi TSB, but problem still exists.
Jun 2013 33000 mi	secondary air ports clogged. Cleaned ports with pressure washer Rear final drive leaking fluid
Oct 2013 36500 mi	Hood latch open sensor failed, causing the engine to stop checking oil levels and erroneously report that the car was low on oil and shouldn't be driven.
Mar 2014 42000 mi	Drive range sensor malfunctioned. Transmission removed, dissassembled, sensor replaced. Engine using more oil than expected between changes. Replaced crank case breather. Rear differential fluid leaking. Replaced axle shafts.
May 2014 43000 mi	Radio hopping between HD & regular signals
Jul 2014 44300 mi	Gearbox malfunction warning on dash. Car went to limp home mode, and had extreme difficulty shifting. Seal ring failed, fluid leaked at radiator. Replaced seals & fluid. Tire Pressure Warning Lite activated stating all 4 tires were low.
Aug 2014 45000 mi	Seat belt warning light on constantly despite all passengers wearing their seat belts. Replace faulty seat belt buckle.

Audi A4 in Florida, United States Jan 2012 - Dec 2012
Feb 2012 4300 mi US $75	DSG Transmission has been very jerky in the Dynamic mode. AUDI had a TSB on the problem and flashed the computer module. The final verdict isnt out yet as I could not alway reproduce this so I will wait a bit. B&O sound system lost amp power. It lasted about 2 days then the amp power suddenly restored back to normalcy. The amp was replaced, actually for the 2cnd time as I had a radio problem (periodically no radio sound) a few months ago. The wheel has started to flake
Sep 2012 8000 mi	Still having issues with the transmission. Cant always replicate the problem so the dealer says nothing he can do. B&O sound system periodically malfunctions. It has done this 4 times since taking delivery. They still cannot figure it out. Have pursued Lemon Law. its ashame, it's a fun car, when it's working.

Audi A4 in Arizona, United States Oct 2013 - Mar 2014
Mar 2014 28000 mi	Thermostat failed in the closed position

Audi A4 in Ontario, Canada Feb 2014 - Jun 2018
Jun 2014 28520 mi	Dsg issues mechatronic failure. Dealer is struggling to sort out issue DSG failure, Mechatronics needs to be replaced - car has been at the dealer for 6 days - replaced gear box
Oct 2016 63860 mi	Had to replace water pump and thermostat- car was on the verge of overheating.
Nov 2016 65660 mi	Decarbonizing of secondary air intake - warranty emissions CEL error light
Mar 2018 97960 mi C $1500	Abs sensor right front wheel failed Had to replace the power steering pump- part 1181 CAD and labor runs around 375- ugly repair, this part should not fail!!!

Audi A4 in New Hampshire, United States Jul 2013 - Jul 2016
Feb 2014 41400 mi	Front right wheel bearing replaced.
Feb 2015 52400 mi US $85	fuel pump replaced, fuel pump control unit replaced, crankcase regulating valve replaced (TSB)

Audi A4 in Wisconsin, United States May 2013 - Jun 2022
Jun 2013 21000 mi	One strip of LED lights in the right rear turn signal failed. Replaced entire rear turn signal assembly. Part replaced under warranty.
Oct 2013 25800 mi	Several warning lights came on: Rear Differential Warning Light, ESP Light, Dynamic Steering Light. Dealer unable to duplicate, and reset the warning lights. Recommended further investigation if lights came back on. Rear Sport Differential light came back on. Audi U.S. service techs found 1 of 3 oil temp sensors in rear differential was faulty. No problem with sensor, oil temp, or mechanicals. Updated algorithm code. Problem solved.
Dec 2013 30000 mi	Dealer verified TSB and ordered parts, starting with new caliper slides and grease, then determined front brakes should be replaced due to pitting in the rotors. Replaced rotors, calipers, and pads in front, and grease in back. 2 visits.
May 2014 35000 mi	The transmission often jerked between 1st & 2nd gear at slow speed. Replaced mechatronics unit and reprogrammed per TSB#2027363/3 and TACH#1255687. Problem resolved.
Oct 2014 44500 mi	Low coolant level light. Found leaks in both radiators (regular & supercharger). Replaced radiators and installed protective grill. Repaired under warranty.
Jun 2015 54000 mi US $675	Replaced front wheel bearing, part number 4H0-498-625-A. Part was $362.17 plus 2.5 hrs labor.

Audi A4 in Washington, United States May 2013 - Oct 2013
Sep 2013 26000 mi	Leaking fluid

Audi A4 in Virginia, United States Mar 2014 - Dec 2014
Oct 2014 55800 mi	Thermostat replace

Audi A4 in Massachusetts, United States Jul 2014 - Jan 2022
Jan 2016 39800 mi US $85	Oil sensor indicated low oil - even after adding 1.5 quarts there was no change in the the dashboard indicator, the fault was in the sensor, and in fact the oil was completely full all along.
Apr 2016 49300 mi	engine light indicated airflow issues - dealer found carbon build-up in secondary air intake. no misfires detected but covered under service bulletin extended warrantee
Jul 2017 57000 mi US $750	voltage regulator intermittent failure created over voltage errors for all systems, causing car to go into safe/limp mode. This took place after a minor rear end impact (jolt). Votage regulator replacement was done.
Nov 2017 59000 mi US $6000	Thermostat failure, resulted in car overheating initially intermittently, then continuously. This caused transmission failure due to electronics associated with mechatronics control unit for 7 speed DSG to fail. mechatronics unit replaced. Mechatronics unit failed due to thermostat failing in closed position, resulting in car overheating. No coolant loss was seen, this was entirely a thermostat failure. The resulting overheating caused electronics in the Mechatronics unit for the DSG to fail, putting the car into a limp mode where the transmission Reverse and Even gears were unavailable. Problem solved when mechatronics unit was replaced and the transmission reconfigured by the dealer.

Audi A4 in Pennsylvania, United States Mar 2016 - Sep 2016
Mar 2016 125000 mi US $350	Upper control arm bushing pressed out and replaced. Noticeable improvement in ride quality. I also did an alignment at the same time, which may or may not be necessary.
Jun 2016 130000 mi US $1200	Car Running very hot. Limped into the shop. Discovered water pump leaking and thermostat likely stuck shut. Replaced water pump, thermostat along with fresh coolent. Excessive oil consumption, 1qt/500 miles. Replace PCV valve per TSB/ owner forum consensus. PCV valve is below the Supercharger unit and is a labor intensive process to get to. The part it's self is only about $150, but around 6 hrs of lbr

Audi A4 in Washington, United States Sep 2011 - Jun 2022
Mar 2017 48000 mi US $1200	Thermostat failure. Replaced with OEM part. Preemptive replacement of water pump and 45,000 maintenance performed as wel.

Audi A4 in New Jersey, United States Oct 2015 - Jun 2018
Jan 2016 96000 mi US $1500	Failure of Mechatronic Unit! Prevalent in this model and dealers are not cooperative when it comes to repairs.
Feb 2016 96700 mi US $600	Horn was not working
Apr 2018 120000 mi US $1989	The car did not have reverse, 2nd, 4th or 6th gears: It could only drib=ve in 1st, 3rd, 5th and 7th gears. TSB.

Audi A4 in Ontario, Canada Dec 2014 - Jun 2018
Jun 2016 67580 mi	The DSG automatic transmission failed and made the car go into limp mode, preventing the car from being driveable. The dealership diagnosed the problem to a faulty circuit board and replaced it. This is a common problem. TSB.
Jun 2018 112840 mi C $1000	Failed thermostat.

Audi A4 in North Carolina, United States Oct 2014 - Jan 2018
Oct 2014 44000 mi	Black carbon build up on exhaust pipes and rear of car - bumper and trunk.
Sep 2015 56000 mi US $50	Repair cost was $50 because I purchased an additional warranty. Transmission had a hard thud and lurch forward at slow speeds when downshifting to 2nd and 1st gear.
Jun 2016 64000 mi	Received check engine light. Code indicated excessive carbon build-up. This is a known issue with a TSB. Dealer performed service to clean valves and remove carbon. NOTE - when having this service get your belts replaced. Dealer missed this
Dec 2016 68000 mi US $50	Stabilisation program error - electronic fault.
Jan 2018 77000 mi US $50	"Spun bearing on cylinder 1 connecting rod. No bearing left and scoring on the crank shaft." Service manager said 'Catastrophic engine failure.' Engine replaced.

Audi A4 in Kansas, United States Apr 2013 - Feb 2015
Nov 2014 42000 mi	Thermostat Failed. Leaked coolant. Thermostat Replaced under warranty.
Dec 2014 44000 mi	Replaced vent motor gear in dash ventilation flap.

Audi A4 in Pennsylvania, United States Jul 2014 - Jan 2017
Jul 2014 78000 mi US $750	Mechatronic unit failure

Audi A4 in Nevada, United States May 2011 - Nov 2013
Oct 2011 3300 mi	Lubricated squeaking sunroof. Lubricated squeeking sunroof.
Apr 2012 8075 mi	TSB for brake squeal during light application of brakes during cold weather or when the brakes are still cool. Dealer replaced front rotors, pads and caliper slides. TSB for brake squeal during light application of brakes during cold weather or when the brakes are still cool. Dealer replaced front rotors, pads and caliper slides.

Audi A4 in Oregon, United States Apr 2011 - Jun 2018
Sep 2011 5000 mi	FM radio would not auto scan for stations. Radio unit was replaced with new one. Problem fixed.
Jun 2012 15000 mi	Rear sports differential seals leaking and replaced Passenger side sun visor clip broken and replaced
May 2015 45100 mi	Great shift sensor failure and replacement.
Jun 2015 45000 mi US $784	Thermostat failure
May 2017 60000 mi US $1100	Crank Pulley Separated and shredded accessory belt. New crank pulley, accessory belt and supercharger belt replaced. Car was modified with aftermarket supercharger pulley and tune.
May 2018 67100 mi US $3800	Mechatronics unit replacement and reprogram.

Audi A4 in New York, United States Feb 2011 - Oct 2012
Oct 2012 13000 mi	Rear axle leak; repaired under warranty.

Audi A4 in Singapore Feb 2011 - Mar 2012
Mar 2012 6820 mi	Update S-Tronic software to make grear 1 & 2 change during low speed.

Audi A4 in Texas, United States Oct 2011 - Sep 2013
Apr 2013 53800 mi US $800	delay shifting the heating didn't work , unless i pressed the gas pedal
Sep 2013 63000 mi US $700	delay on down shift when gets hot

Audi A4 in California, United States Apr 2011 - Apr 2017
Jan 2014 17500 mi	While driving, coolant level warning came on and engine was overheating. Pulled over, towed car to dealership. Dealership noted "Thermostat was stuck closed" and replaced thermostat.
May 2014 25000 mi	Started car, got the message "Gearbox malfunction, you may continue driving." Dealership replaced PCB on mechatronic unit.
Jun 2014 26000 mi	Backup camera became dim, then intermittently stopped working. Wiring harness replaced.
Feb 2015 29100 mi	Got low engine oil indicator. Dealer added 1L of oil, indicator remained. Diagnosis was a faulty hood contact switch.
Dec 2015 35000 mi US $185	Car wouldn't start. Jumpstarted by AAA, took to dealership, did diagnosis, found no problems. Car wouldn't start again when they brought it to me, was jumpstarted again. Has started fine ever since.

Audi A4 in Florida, United States Apr 2011 - Oct 2013
Nov 2011 3300 mi	DSG transmission would shift early (at 5000 rpm) in 2nd gear, while I was in manual mode. All other gears allowed me to shift at redline (7000) rpm. Mechatronic unit was replaced, but problem remained. Update: 2012 S5 that replaced this car does the same.

Audi A4 in British Columbia, Canada Nov 2011 - Jun 2018
Nov 2013 19840 mi	Left rear Differential Seal leaking. Repaired under TSB# 2026049/8 Vehicle still under warranty. Would have cost $2600. TSB is for S4 and S5 with quattro sports rear differential. Re-re both rear coils. Replaced both drive axels.
Jul 2016 29960 mi C $902	Carbon build-up on Secondary Air ports (extended warranty). Leaking coolant return hose. Brake Fluid flush.

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Audi A4 in Ontario, Canada Nov 2016 - Apr 2017
Dec 2016 57040 mi	HVAC fan would not turn on. Replaced HVAC fan motor leaking coolant from water pump

Audi A4 in British Columbia, Canada Feb 2016 - Jun 2022
Sep 2016 58900 mi C $50	Thermostat failed on vehicle. Seems to be the only thing that goes wrong with this car. Otherwise it's been very reliable.
Apr 2017 64480 mi C $56	Sport differential seals were leaking. New seals installed covered under extended warranty.

Audi A4 in California, United States Mar 2014 - Jan 2018
Jan 2014 55000 mi US $1000	Noticed elevated temperature on dash gauge and radiator fans running full speed. No warning light indicated, but taken to shop. Thermostat failed closed.
Jan 2018 128000 mi US $2200	Made a left turn, heard a brief "rubbing" sound, and lost power steering. Pulled to side of road and found main serpentine belt shredded and blower belt kicked off. Car towed to shop. Crank harmonic pulley failed. Serpentine belt shredded, destroyed tensioner pulley and idler pulley. Damage to a plastic cooling pipe crossover on bottom front of motor.

Audi A4 in California, United States Jan 2011 - Jun 2018
Nov 2015 52100 mi US $800	Thermostat went bad again so engine was overheating. Second time since I owned the car.

Audi A4 in Connecticut, United States Nov 2012 - Jun 2022
Jun 2017 106000 mi	Rear rotors and pads
Nov 2021 132000 mi US $1800	Sport differential. Needed new sensor kit, new solenoids, and fluid.

Audi A4 in Massachusetts, United States May 2010 - Jun 2017
Feb 2012 15900 mi	Low coolant.
Mar 2013 22000 mi	Noise coming from front wheel. No problem found. Deemed safe to drive.
Apr 2015 38300 mi US $600	Replaced driver side front wheel bearing

Audi A4 in New Hampshire, United States Feb 2011 - Dec 2015
Jun 2013 50000 mi	Bluetooth microphone replaced

Audi A4 in New Mexico, United States Jun 2011 - Sep 2011
Jul 2011 14000 mi	Gas vapor leak occurring during warm weather. Hard to replicate. Nauseating smell.
Aug 2011 14000 mi	Gas vapor leak again. Replaced some parts that seem unrelated. I'll see if it continues.

Audi A4 in New York, United States Oct 2010 - Jun 2011
Nov 2010 850 mi	Clutch clicking and creaking not engaging correctly First time pin was replaced. Then car had very jerky shifting went in and out, defective pressure plate, replaced clutch. Clutch clicking and creaking not engaging correctly.
Dec 2010 3000 mi	After that all was well, then I pushed the clutch down and it snapped and the pedal came up to the plastic under the steering column area. Replaced linkage pin again.

Audi A4 in Maryland, United States Oct 2015 - Sep 2016
Aug 2016 57700 mi US $85	Squeaky clutch pedal. Clutch Master Cylinder replaced.

Audi A4 in New Jersey, United States Mar 2014 - Jan 2022
Apr 2015 33300 mi	Passenger door pull broken
Apr 2016 40300 mi	Thermostat broken. Caused overheating

Audi A4 in New York, United States Sep 2011 - May 2018
Dec 2016 34000 mi US $250	Fluid leak on CV joint - could have been ignored. If it was under original warranty would have been repaired at no cost under Technical Service Bulletin 2026049.

Audi A4 in Quebec, Canada Aug 2010 - Dec 2013
Sep 2011 3720 mi	Weather seal on inside of rear right door jamb came loose, and would get stuck outside of closed door. Part ordered and replaced.
Mar 2012 6820 mi	Odometer and extra info screen between speed and tach flickering. Loose wiring suspected. Due for final repair in April
May 2012 7220 mi	Entire electrical module for the info display cluster was fried and required complete replacement.
Jul 2013 11160 mi	Both headlight spray washer mechanisms extruded from the car and refuse to reintegrate back into their housing within the bumper. The problem was a defective spring mechanism.
Dec 2013 11160 mi	Carbon buildup in the engine.

Audi A4 in New Jersey, United States Oct 2010 - Jun 2011
Nov 2010 1000 mi	Driver's window doesn't go up and down automaticly. Switch ordered.

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Audi A4 in Italy Dec 2016 - Jan 2018
Jan 2018 62620 mi €50	As explained in previous description, it’s possible I’ve been sold a defective battery, 4 months ago. I’ll have to keep on checking the situation in the next few weeks.

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Audi A4 in Rhode Island, United States Apr 2014 - Sep 2014
Jul 2014 51500 mi	Vehicle was exhibiting excessive oil consumption due to factory defect in piston rings. Entire all four cylinders replaced with new rings under warrantee work.

Audi A4 in Colorado, United States Apr 2014 - Apr 2017
Apr 2015 40200 mi	Excessive oil consumption

Audi A4 in District of Columbia, United States Sep 2009 - May 2015
Aug 2011 36000 mi	Low speed front end shudder when wheels turned. Power steering hose was replaced under warranty. Problems appears to have been fixed. Rear light bulb blown. This was the second time a rear bulb has gone. Shop checked to see if there was any sort of systemic issue but found nothing. Engine running very roughly, blowing black smoke, check engine light on, eventually car stopped completely. Car towed to dealer. Fuel injector on No.2 cylinder apparently faulty and was replaced.
Oct 2011 37800 mi	Malfunctioning purge valve. Part replaced
Mar 2012 45000 mi	Warning light that right rear bulb was out. Dealer inspected and said it was a false alarm. The false alarm recurred on April 4. Car has suddeny started using a lot more oil than usual (additional oil being required every 1,000 miles instead of the usual 3,000-3,500. Car was inspected for leaks and oil was changed.
Feb 2013 68700 mi US $258	Right rrear light fixture required replacement
May 2013 77000 mi	Fuel door malfunction. Excessive oil consumption. Persistant problem since new. Set up for Part I oil consumption test over next 1,000 miles. Car has averaged 1700 miles per quart of oil and since first started monitoring consumption at 16000 miles.
Jun 2013 78000 mi	Car has been using excess oil since new. They agreed to install new pistons and rings Water pump was leaking. News pump installed at no cost. Car is out of warranty but Audi is footing the bill for the new pistons and rings plus the water pump.

Audi A4 in Ontario, Canada Dec 2013 - Jun 2018
Jan 2014	Engine was leaking oil after the pistons were replaced under warranty.

Audi A4 in New York, United States Oct 2009 - Oct 2014
Oct 2013 65000 mi	Oil consumption test. Also recheck the original software "fix". They will schedule a piston and ring job next. replaced pistons and rings, finally fixed oil consumption issue. Auxiliary water pump discovered signs of leakage while replacing pistons and rings for oil consumption. Dealer charged over $400 for part and 2.5 hours...$675 for repair
Nov 2013 66200 mi US $450	Passenger side wheel bearing replaced (drivers side was previously replaced at 45000 under warranty )
Jun 2014 72000 mi US $114	steering feel was erratic...hard for part of the turn then easy. Indy mechanic found a TSB on the issue it is over a 300 dollar part and an hour or two labor. Mechanic managed to get some lube in there for now. I'll replace the part soon.

Audi A4 in Massachusetts, United States Apr 2012 - Oct 2018
Oct 2012 32300 mi	Driveline would clunk approaching a stop, mostly in stop and go traffic. Dealer updated the transmission software. The Navigation screen will intermittently flicker. Dealer told me that this was due to the light sensor, Audi is aware of the problem, and does not at this time have a fix. Oil consumption had gone up dramatically in the past year. I kept a record of when I added oil and mileage - and provided that info to the Service Mgr. They changed the front crank seal and a valve of some sort.
Nov 2013 42000 mi	The dealer installed a Mecatronics unit for the transmission. Dealer did part 2 of the oil consumption test, and my car passed that test, its using oil within limits.
Nov 2014 48000 mi US $238	Harsh 2-1 downshift mostly while in stop and go traffic. The dealership diagnosed the problem, test drove and added approx. 1/2 quart transmission fluid. The issue is happening less, but is still happening.
Nov 2015 55000 mi US $149	I needed to have my Headlights adjusted. Somehow the HID projectors were way out of adjustment and pointing super high. This was not covered by my CPO warranty. Update: Fast forward nearly a year and I was getting a suspension error and the dealer checked it out and the rear ride height sensors were bad, maybe only one, but that ended up being the root cause of the initial issue with my headlights. That sensor was bad, the car thought it needed to compensate the headlight angle, and boom, I'm out $160 for an unneeded headlight adjustment, This all clicked to together for me when the work order for the ride height sensor included a re-aiming of the headlights.
May 2016 59000 mi US $569	Water pump was replaced - it was leaking slightly After failing the part 2 of the oil consumption test Audi of America instructed my dealer to replace the pistons and rings in my engine.
Sep 2016 72600 mi	I was getting a suspension error and the dealer checked it out and the rear ride height sensors were bad, maybe only one, but that ended up being the root cause of the initial issue with my headlights.
Apr 2017 71000 mi US $425	The PCV valve was bad.
Apr 2018 84000 mi US $100	I had codes P0441 and P2187 showing. The shop replaced the PCV valve under their shop warranty.

Audi A4 in Florida, United States Dec 2015 - Sep 2017
Mar 2016 96000 mi US $1900	Bushings Drivers left armrest replaced
May 2016 100000 mi US $3800	Water pump Mixture sensor
Nov 2016 115000 mi US $250	Rear Shocks. Owner Repair.
Apr 2017 123000 mi US $1500	R and L Wishbone Control Arms (2 per side) and Alignment

Audi A4 in Tennessee, United States Feb 2010 - Sep 2012
Sep 2011 22000 mi	Sunroof drain had cracked, causing significant leak during rainstorms. Was repaired as part of TSB
Dec 2011 25000 mi	Rattle from rear hatch. Sound deadening and loose object found

Audi A4 in Utah, United States Nov 2010 - Sep 2011
Feb 2011 17900 mi	Hood latch sensor faulty. Low oil light would not reset after adding oil. Sensor successfully replaced.

Audi A4 in California, United States Nov 2010 - Oct 2017
Mar 2016 78000 mi	Engine seemed to go through oil fairly fast, had to refill every 2500 miles or so. Oil consumption test was performed and cylinders were replaced under warranty
Sep 2017 92000 mi US $750	Wheel alignment

Audi A4 in Iowa, United States May 2013 - Jan 2022
Feb 2014 77900 mi	Oil consumption test showed excessive consumption. Pistons & rings to be replaced. Head had gouge damage and was replaced.
Sep 2014 82000 mi US $660	A valve associated with crankcase ventilation developed a crack. Diagnosed & replaced. Also tire noise identfied.
May 2016 112000 mi US $900	Alternator failed- the pulley on it broke
Aug 2017 126000 mi US $180	Bent and Cracked alloy wheel had to be welded and straightened

Audi A4 in Quebec, Canada Sep 2012 - Jun 2022
Jun 2013 50220 mi	Had a stage 1 oil consumption test.
Sep 2016 86800 mi C $2000	Oil use problem . New pistons and rings done by dealer at 50% cost split out or warranty with Goodwill. I had timing chain and tensioner replaced at same time.
Jun 2018 101060 mi C $1139	Bottom stabilizer bar and curved and straight lower control arm. Also recirculating valve.
Aug 2021 119660 mi C $988	control arm, etc.

Audi A4 in Illinois, United States Jul 2010 - Apr 2011
Mar 2011 2000 mi	-30 degrees outside the LED stop working, they fixed the wire, maybe metal contraction

Audi A4 in Connecticut, United States Jun 2017 - Nov 2017
Oct 2017 66000 mi US $3800	Breather assy, valve cleaning and main seal engine replacement
Nov 2017 68000 mi US $2100	Leaking panoramic roof allowed water into rear computer units in rear area. 2 units replaced and roof resealed

Audi A4 in Washington, United States Dec 2014 - Jul 2019
Mar 2018 73000 mi US $1300	catalytic gasket replaced. regular service performed

Audi A4 in Wisconsin, United States Mar 2010 - Jan 2013
Jan 2012 15400 mi	Rear window washer clogged

Audi A4 in Florida, United States Jan 2019 - Jan 2022
Nov 2019 50000 mi US $30	Front cam seal was leaking oil.

Audi A4 in Utah, United States Dec 2017 - Jan 2018
Jan 2018 115000 mi	car had oil consumption problem when we purchased it, previous owner did not disclose and it was 2k miles out of warranty. Audi would not extend or honor warranty outside of 80k. Seperate issue- car lost power going up hill. Mechanic said it was the timing chain (supposed to be lifetime). He said they are repairing at least one timing chain a week because they "stretch out" and then fail. When they fail you have to replace the entire engine. Parts and labor quoted by several shops 10k-12k depending on if purchase a used or new engine. We are going to walk away from the car. It was a pleasure to drive, beautiful, and we absolutely loved it. But we have a hard time with a company and/or product that has major defects and consumers are not told about it or have to pay for major design flaws. The car was a ticking time bomb.

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Audi A4 in Finland Feb 2010 - Mar 2016
Sep 2010 9300 mi	Both side turning signal lights in the mirrors (LEDs) replaced due to fault code and moisture inside. First symptoms appeared 1 month after delivery. Complained about bad paintwork, but was told that it is normal nowadays...
Oct 2010 11780 mi	Blower started to give squeaking noice. Replaced under warranty.
Mar 2011 19220 mi €300	Something was rattling inside the dash, dealer couldn't identify the reason and I didn't want them to dismantle whole thing.
Jul 2011 26660 mi	Front left wheel bearing broke down giving whining and growling noice.
Dec 2011 38440 mi	Bang&Olufsen audio system was dead - no sound at all. Radio and bluetooth connection were working fine, but just with no sound.
Mar 2012 52080 mi	Driver side (left) wheel bearing broke down. Repaired under warranty.
Feb 2013 71540 mi €90	Left hand side wheel bearing started to give noice and had to be replaced. Dealer paid the spare and 50% of the work. Told me that wheel bearings are breaking down quite frequently with 2010 A4...
Jun 2013 81840 mi	Both front wings replaced and painted under warranty due to chipping paint.
Dec 2013 89280 mi €250	Both side turning signals in mirrors replaced (again) due to moisture inside and causing corrosion in the LEDs.
Sep 2015 112840 mi	Rust problem in rear fenders (both sides). Fixed under warranty.

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Audi A4 in Italy Aug 2011 - Jun 2018
Jul 2012 13640 mi	temperature gauge of the cooling system was not working properly - sensor G2 has been replaced
Dec 2014 22320 mi	Battery not woking. Replace battery
Aug 2017 37200 mi	Brake disks front was damaged; noiose and vibrations

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Audi A4 in Sweden Apr 2012 - Mar 2013
Mar 2013 39060 mi	air intake valve keyless entry sensor

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Audi A4 in California, United States Jul 2010 - Nov 2011
Aug 2010 15979 mi	Replaced faulty fuel injector #3. Symptom: Engine suddenly ran rough, lost power, eventually flooded. Smell of gasoline fumes. Check engine light. Replaced faulty fuel injector #3. Symptom: Engine suddenly ran rough, lost power, eventually flooded. Smell of gasoline fumes. Check engine light.
Oct 2011 31000 mi	Excessive consumption of oil, about 1 quart per 1k miles on average from time of purchase. Repeatedly told that this was normal for Audi's turbo 4 cylinder engines by the dealer. Consumption test performed then finally replaced pistons.

Audi A4 in Missouri, United States Jan 2015 - Jul 2019
Nov 2016 57500 mi US $3000	CVT "gearbox malfunction" light came on, trans would slip on inclines, dealership quoted 10,000 to replace. Replaced with a used trans at indie shop instead. The CVT is garbage. Stay far far away.

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Audi A4 in New South Wales, Australia Jun 2010 - Jan 2017
Dec 2011 21080 mi	To high Oil consumption. Change valves and did consumption test. Phone not Syncing contacts
Oct 2012 31600 mi	When accelerating from a stop, car lurches violently. When coming to a complete stop car also lurches violently.
Mar 2013 37820 mi	Car was using excessive Oil. Engine was rebuilt with updated valves and rings.
Oct 2013 46500 mi A $2600	Engine valve collet broke. Valve entered the engine destroying the internals. Unclear if related to recent rebuild, Audi would not elaborate. Without dealer assistance the total would have been $28500.
Jun 2015 62000 mi A $612	Driver side xenon bulb was turning off after being in for 5 minutes. Diagnosed as bulb needing replacement

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Audi A4 in New Jersey, United States Jan 2017 - Feb 2017
Feb 2017 90000 mi US $1600	PCV Valve failure caused an oil leak in the rear main seal. Repair costs associated with removing the transmission and replacing the main seal.

Audi A4 in Pennsylvania, United States Mar 2010 - Jun 2011
Aug 2010 6000 mi	Low speed shimmy

Audi A4 in California, United States Dec 2009 - Nov 2012
Feb 2010	When i purchased the car, it made a clicking sound in the right rear suspension over bumps. It turned out the original dealer forgot to remove the shipping block from that corner of the suspension. It was removed and car was fine.
Sep 2010 11000 mi	fuel injector failed and was leaking. put car in limp mode.
Dec 2010 9000 mi	fuel injector exploded on freeway. car almost straned in ghetto of los angeles. limp mode home. fuel injector had to be replaced and loaner car given. had to work from home as i was on vacation for holidays...
Aug 2012 40100 mi	catalytic converter failed at 41k miles. took 4 days to replace due to parts
Nov 2012 43000 mi	PCV valve replaced and crankcase seals. stage 1 of EA888 oil burning

Audi A4 in Ontario, Canada Aug 2010 - Jun 2018
Jun 2012 28520 mi	replaced crankshaft seal and PCV, oil consumption test, faulty injectors, carbon cleaning off intake valves. rear middle seat belt not latching. high pressure fuel pump losing pressure; update: misdiagnosis
Jul 2013 38940 mi C $575	front passenger wheel bearing premature failure
Dec 2013 43400 mi	motor and fan bearing was loud. they have taken apart the passenger A/C fan and motor, said they replaced the motor but i dont think they replaced the fan, which was making the noise.
May 2015 53720 mi	Oil consumption, drinks 1Qt every 1000km Rust underneath the hood, Audi denied warranty coverage claiming that it was due to stone chipping
Apr 2017 65720 mi	Heat seat bottom malfunction
May 2018 74400 mi C $450	EVAP fuel line leak causing CEL. Decided not to fix it.

Audi A4 in California, United States Jan 2018 - Jun 2022
Feb 2018 105000 mi US $96	Replaced rear led lights.

Audi A4 in Kansas, United States Feb 2012 - Jun 2022
Oct 2012 26700 mi US $130	The paint on the front bumper near the fog lamps began to peel on both sides of the car.
Jun 2015 56000 mi US $75	Center High Mounted Stop Light (CHMSL, the third, center brake light) had one, out of 10 or so, LED go out. I purchased a new CHMSL and replaced it myself.
Dec 2017 78000 mi US $335	Replaced pistons due to excessive oil consumption. This was warranty work due to the extended warranty (as a result of a class action lawsuit against Audi / VW Corp.).

Audi A4 in Ontario, Canada Jan 2010 - Sep 2017
Aug 2011 15280 mi	Sunroof pop up wind deflector was replaced with a new design that decreases wind turbulence. It improves the ability to drive the car with the sunroof fully retracted up to 80+kmh versus the old design made it very uncomfortable after 40kmh Power steering hose replaced with new design. In the past, turning the wheel at parking lot speeds causes the power steering pump to struggle (as if it was not getting enough pressure). On replacement, happens much less but still there. TSB.
May 2012 19200 mi	Video card failure in MMI system (non Navigation unit) which required dealer to replace with a brand new radio. 1st attempt - wrong part ordered. 2nd attempt - US-spec radio installed which resulted in compatibility issues. Awaiting 3rd uni
Jun 2012 20460 mi	Radio unit replaced and car reprogrammed.
Jun 2013 27900 mi C $15	low oil. Added a quart after 5,000kms / 4months since last oil change. Dealer says oil consumption still within tolerance.
Dec 2013 29140 mi C $10	low oil warning came up and topped up with 1 quart.
Feb 2014 30380 mi	oocassional (5% of the time) harsh shift on 2-3 or 3-2. Transmission reflash (goodwill)
Feb 2015 35340 mi C $800	Water pump failure. $300 parts. Rest labor.
Jun 2015 36580 mi	individual LED in the rear tail light cluster burned out.
Oct 2016 42980 mi C $800	Shock and strut replacement. Maintenance

Audi A4 in New York, United States Jul 2009 - Dec 2010
Aug 2009 1000 mi	Headlights were misaligned. After two attempts still not right. Have a call into Audi USA but haven't had a chance to followup.
May 2010 6000 mi	Engine Surge TSB2021227 - Update ECU Vibration TSB 2020332/4 2022179/2 - Replace lower control arms

Audi A4 in Virginia, United States Jul 2010 - Feb 2014
Aug 2010 1000 mi	Just a missing center wheel audi cap needed to be replaced as it was missing at vehicle delivery.
Jul 2011 14000 mi	Bad radio that needs to be replaced.
Aug 2011 15000 mi	Radio replaced.
Jun 2012 29000 mi	Bad Satelite Radio Antenna. Needed to be replaced.
Aug 2013 44000 mi	Headlight replaced during general maintenance.

Audi A4 in Colorado, United States Aug 2015 - May 2017
Sep 2015 61000 mi US $50	During routine maintenance, water pump was found to be leaking and replaced under warranty.
Nov 2015 63000 mi US $645	Piston ring replacement was completed under warranty for excessive oil consumption. Added costs incurred during work to replace rear main, front cover seals and clean cam shaft oil bridge filters.
Dec 2015 64000 mi US $60	bracket holding sun visor broke. Bracket replaced.

Audi A4 in Virginia, United States Oct 2010 - Jun 2018
Feb 2012 27500 mi	Replaced side-mirror control switch since it was intermittently working.
Jun 2012 35000 mi	Engine burned a quart every 1000 miles. Oil consumption test resulted in new seals and software update. Audi performed taillight seal recall
Nov 2014 74300 mi US $752	Replaced Air Intake Separator Tech noticed water pump leak on prior visit. Water pump replaced.
Apr 2015 80700 mi US $3100	Underboost CEL. Replaced turbo.
Sep 2017 114000 mi US $628	Leaking right rear shock. Replace both rear shocks.

Audi A4 in Washington, United States Apr 2010 - Jul 2018
May 2018 54000 mi US $900	Replaced leaky water pump

Audi A4 in New Jersey, United States Nov 2009 - Jun 2018
Apr 2010 4500 mi	At 2,200 miles, static/interference noise from stereo with no sound for 5-15 seconds when starting car. Brought to dealer and new stereo was ordered for installation at a later date. Covered under warranty.
May 2010 6000 mi	Re-checked all the connections, cable routings and antenna (no problems), wanted to try a new amp (none on hand) and tried to order a gateway module (on national backorder). They did two software updates (2023416/1 and 2023281/1). New radio installed from April 2010 trip. Static problem continued when starting car, although shorter in duration (few seconds). Returned to dealer in May 2010 for 5K service and further service on stereo.
Aug 2010 12000 mi	Static problem continued (3 times in June) when starting car, although shorter in duration (few seconds). Steering wheel vibrated at low speeds when turning (backing in or out of parking spot, for example). Power steering hoses changed and power steering fluid replaced. Front left tweeter enclosure vibrated when stereo was playing certain frequencies (example, phone call ring). Problem could not be replicated. Satellite radio reception seemed to be poorer, dropping signal when in past the signal would be OK (example, under small overpass). Reception was said to be similar to other cars.
Mar 2012 35000 mi	Airbag malfunction warning and ABS warning displayed after approximately 5 minutes of driving. Repair was seatbelt replacement.
Jun 2013 54000 mi US $820	Failure of 1 fuel injector.
Feb 2016 94000 mi US $2000	Replace rear main seal Replace engine mount

Audi A4 in Illinois, United States Oct 2009 - Aug 2016
Aug 2016 41000 mi US $350	battery replacement

Audi A4 in North Carolina, United States Feb 2013 - Feb 2014
Apr 2013 65200 mi US $85	bad turbo bearings.
Jul 2013 71000 mi US $80	Both LED brake light clusters were replaced due to faults.
Aug 2013 71800 mi US $80	Gas cap door has an electric lock that locks with the doors. This wasn't unlocking. They replaced the motor that retracts the locking pin on the door.

Audi A4 in District of Columbia, United States Aug 2016 - May 2017
Sep 2016 49000 mi US $200	Known oil consumption-related problems with the 2009 and 2010 A4 2.0: top half of engine rebuilt with new valves, new turbo plus a timing chain tensioner replaced while the engine was out -- all covered by Audi save for the tensioner ~ $4500 total in repairs.

Audi A4 in Connecticut, United States Apr 2014 - Jun 2014
May 2014 69000 mi US $2000	Valve burnout, rocker-roller push rod gave out and caused lack of compression.

Audi A4 in New York, United States Jul 2010 - Oct 2016
Aug 2010 5000 mi	Rear power window stopped working properly around 4500 miles. The window couldn't fully closed. Instead, it will reverse as soon as it hits the top end of the window frame. Power steering wheel sluggish or vibrate when the car is at low speed (below 5 mph) and at stop. I was told by the dealer that power steering hose needs to be replaced. I will bring the car back next week because the part is out of stock
Oct 2016 28000 mi US $1000	Water pump is started to leak slowly. I haven't had a chance to bring it to the shop for repair as I don't drive the car much. Repair cost quoted from $850 to $1175

Audi A4 in Virginia, United States Nov 2012 - Apr 2015
Sep 2012 30670 mi	Replaced power steering hose and filled with fluid Valet button stuck, replaced button.
Mar 2015 77000 mi US $85	1. Crankcase breather valve leaking. 2. Oil pressure switch malfunction. 3. Rough idle. Replaced leaking Crankcase Breather.

Audi A4 in Pennsylvania, United States Nov 2013 - Mar 2017
Jan 2014 95000 mi US $120	Door handle latch cable broke
Aug 2015 75400 mi US $100	Failed pcv
Sep 2015 73000 mi US $400	Failed alternator replaced battery at same time due to failing
May 2016 93000 mi US $10	Cam chain and tensioner failure. Both items replaced. Dipstick seal damaged. Showed up a couple days after having cam chain and tensioner replaced. I assume it was caused during the repair but I never accused and they didn't say. However I only had to pay for the seal and not labor or diagnosis.
Dec 2016 106000 mi US $115	Replaced upstream o2 sensor

Audi A4 in Massachusetts, United States Sep 2013 - Jan 2022
Dec 2013 34000 mi	TSB performed to address oil consumption issue.
Jun 2016 77000 mi	Turbocharger was not attaining expected boost levels, so the turbocharger had to be replaced.
May 2018 104000 mi US $800	I discovered a broken spring in the rear; I had both rear springs replaced.
Nov 2021 159000 mi US $120	Replaced the blower motor; it was getting noisy.

Audi A4 in Florida, United States Feb 2010 - Apr 2012
Nov 2010 24000 mi	High pitch noise when cruising freeway especially up to 85mph. Dealer replace driver's side mirror and car is still in dealership.

Audi A4 in Texas, United States May 2010 - Jun 2011
Jun 2010 10000 mi	Weatherstripping on all doors was falling off. Cleaned out the old glue, reapplied adhesive and the strips

Audi A4 in Pennsylvania, United States Jan 2015 - Mar 2016
Feb 2015 65700 mi	Control arm bushings.
Mar 2016 87000 mi US $3500	Timing chain replacement

Audi A4 in South Carolina, United States Nov 2009 - Aug 2013
Jan 2010 4000 mi	Was RVU for wind diffuser for sunroof
May 2010 5000 mi	Airbag Sensor in passenger seat replaced as lighter individuals like my wife would not turn on sensor even though she should be over the threshold (verified in loaner A4). Parts replaced and functioning properly. Excellent service.

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Audi A4 in Maine, United States Jun 2010 - May 2017
Apr 2015 49300 mi US $700	Replaced right-front wheel bearing assembly.
Sep 2016 63000 mi US $650	Tie rod replacement

Audi A4 in Massachusetts, United States Dec 2010 - Mar 2015
Mar 2014 47000 mi	Warning light came. Replaced catalytic converter for free and replaced spark plugs
Jul 2014 50700 mi	Loose clamp from catalytic converter repair caused transmission to downshift with great noise and shake.
Sep 2014 54000 mi US $500	Clutch needed to be replaced. I think the lining slowly wore out as it kept slipping increasingly. L front wheel bearing replaced

Audi A4 in Tennessee, United States Feb 2010 - Dec 2012
Apr 2010 125 mi	Tire vibration issue Door seal deformed Part in airbag in steering wheel loose
Jun 2011 25000 mi	Teflon ball in gear box rubbing

Audi A4 in Washington, United States Sep 2010 - Jul 2018
Apr 2016 48300 mi	Oil consumption. Piston replacement.
Sep 2017 58000 mi US $400	Led bulbs went out. Required replacement of the entire unit.

Audi A4 in Ontario, Canada Jan 2015 - Jan 2015
Jan 2015 47740 mi	Fuel pressure and fuel injection replaced

Audi A4 in California, United States Dec 2009 - Dec 2014
Jun 2010 8000 mi	"side assist" was broken
Sep 2012 43000 mi	Dead cam adjuster. Dead starter.
May 2013 56300 mi US $600	AC coolant leak and recharge.

Audi A4 in Michigan, United States Feb 2017 - Mar 2018
Jan 2018 117000 mi US $645	Oil sensor replacement Belt tensor replacement
Mar 2018 119000 mi US $485	Replaced ignition coils and spark plugs

Audi A4 in Missouri, United States Nov 2009 - Aug 2020
Jul 2014 46000 mi US $360	Right rear LED light burned out

Audi A4 in Ontario, Canada Sep 2009 - Mar 2011
Jun 2010 13640 mi	replaced Power Steering hose, vibration during slow turns

Audi A4 in Ontario, Canada Jun 2015 - Jun 2016
Jun 2016 79980 mi C $100	warranty to replace rings and pistons

Audi A4 in New Jersey, United States Sep 2009 - Aug 2013
Oct 2010 9700 mi	Wind noise on driver's side. Complained at 5k service, dealer could not reproduce. During the 9k service (different dealer was able to confirm). Door strike adjusted. Whistle gone.
Jan 2013 17700 mi	Fuel door not unlocking without repeated attempts. Needed several tries for a few weeks. Solved when first taken to dealer.
Jul 2013 43000 mi	LED tail lights: some elements went dark. Both sides were replaced. Slight noise at hwy speeds when given steering input. Left front wheel bearing worn. Replaced.

Audi A4 in California, United States Dec 2009 - Dec 2012
Mar 2010 5000 mi	Front right tire inner fender rub. Inner fender cover reattached. I have not noticed the noise since that time.
Aug 2012 36300 mi	Blower motor was making an unusual noise when using high fan speeds.

Audi A4 in Texas, United States May 2010 - Jan 2011
Nov 2010 17300 mi	oil leakeage, seal replaced

Audi A4 in Texas, United States Apr 2014 - May 2015
Dec 2014 72000 mi	AC switch
Feb 2015 73400 mi US $100	Replace door lock switch

Audi A4 in Georgia, United States Jan 2012 - Apr 2012
Mar 2012 38000 mi	Oil consumption test & manufacturer repair.

Audi A4 in Newfoundland / Lab., Canada Dec 2011 - Dec 2013
Jan 2012	Wheel bearing
Mar 2013 22320 mi	Replaced the steering column
Sep 2013 27900 mi	seal had to be replaced

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Audi A4 in Ontario, Canada Sep 2015 - May 2017
Oct 2015 54140 mi C $650	Drive was noisy.
Jan 2017 58480 mi C $450	Replaced heat blower motor.

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Audi A4 in Missouri, United States Mar 2010 - Apr 2015
Sep 2010 17000 mi	Door sensor.

Audi A4 in Colorado, United States Mar 2010 - Mar 2012
Nov 2010 6000 mi	Water pump (plastic part defective on all early-2010 B8 S4s) leaking coolant. Drivetrain shudder during turns at low speed. Dealer acknowledged problem, Audi claims is normal condition.
Dec 2010 7000 mi	CEL for secondary air pump. Reset CEL, could not duplicate.
Apr 2011 8000 mi	Service bulletin for thermostat replacement. Leaking rear differential seal
Mar 2012 12000 mi	Mechatronics unit replaced twice, then entire transmission replaced.

Audi A4 in Ontario, Canada Mar 2010 - Dec 2016
Apr 2010 2480 mi	Engine light came on. Dealer found fuel ratio imbalance error code. System scan performed. No problems found and no loss of power. Error code erased.
May 2011 5880 mi	Engine light came on. Dealer diagnosed fuel injector problem. Replaced #5 fuel injector. Thermostat replaced due to preventative TSB.
May 2015 46500 mi C $100	Right rear electronic parking brake motor malfunctioned

Audi A4 in Ohio, United States Dec 2009 - Apr 2013
Jul 2010 4000 mi	While returning the sun visor from the left to the center, the retaining clip broke. Dealer had to order the clip. Real pain because the visor flapped until fixed. New sun visor clip installed.
Jan 2012 14000 mi	Rattle in front passenger door, for which there is a technical service bulletin from Audi. Fixed plastic fasteners inside door that loosened over time, as well as additional sound insulation materials.
Mar 2012 15000 mi	Continuing rattles traced to glove box. Noise was terrible -- essentially made driving impossible. I isolated the source (dealer could not), after which dealer fixed the problem. Finally.

Audi A4 in Massachusetts, United States Feb 2010 - Apr 2015
Dec 2010 15000 mi	Replaced leaking Water Pump
Feb 2011 17000 mi	Engine light came on. Dealer diagnosed fuel injector problem. Replaced #1 fuel injector and reset engine light.
May 2011 22200 mi	Thermostat replaced due to preventative TSB.
Jul 2012 44000 mi	Dealer performed an unsolicited Tail Light gasket update #94F6 under warranty to prevent possible leakage of moisture into the Tail Light housings.
Aug 2012 45200 mi	Check Engine Light came on with no obvious impact on vehicle performance. Dealer diagnosed a bad secondary air pressure sensor on Bank 2, ordered part and subsequently replaced the sensor under warranty.
May 2013 55800 mi	Got Gearbox Malfunction error message. Dealer replaced mechatronic and wiring harness in transmission.
Dec 2013 64000 mi	Oil level warning would not reset after topping off oil. Replaced switch that senses hood closure under extended warranty.
Aug 2014 73300 mi	Check Engine Light came on with no obvious impact on performance. Dealer cleaned secondary engine air ports. CE light came on again when picked up. Dealer diagnosed bad relay for secondary air flow motor. Replaced under extended warranty.

Audi A4 in Washington, United States Feb 2010 - May 2015
Feb 2010 1200 mi	Driver's side rear outer brake pad had to be replaced (free of charge). A portion of the pad adhered to the rotor, approx a 1/2 inch wide area in the center of the swept area, was not making contact with the pad surface as a result.
May 2015 56000 mi US $900	Front upper and lower bushings were shot, had upper entire control arms replaced with adjustable (stock is non-adusting) and new bushings (redesigned part from Audi) on bottom replaced

Audi A4 in New York, United States Feb 2010 - Feb 2017
Oct 2010 6000 mi	Water pump was replaced at owners request proactively by dealer as the water pump was in scope for the replacement. Very satisfied with the way Biener Audi replaced the water pump in under 2 hrs. while I waited without any hassles.
May 2011 9300 mi	Thermostat was replaced based on Audi TSB where the thermostat could stick in the closed position, causing an engine overheating condition.
Jan 2013 16000 mi	replace crankcase ventilation hose which cracked
Jan 2015 US $1100	Battery low warning message when listening to radio with engine shut off. Dealer replaced radio module but did not solve problem, credited for this later. Root cause: bad voltage regulator and battery.

Audi A4 in New York, United States Feb 2010 - Aug 2014
Oct 2010 9000 mi	Known water pump/high pressure seal for pre-March 2010 build dates. Either the seal or plastic pump goes resulting in loss of coolant. Water pump replaced with metal pump the same day by dealership.
Jul 2013 59000 mi US $900	Both front wheel bearings replaced
Mar 2014 69000 mi	TSB performed on DSG gearbox, replace circuit board. Replaced under Audi extended warranty from previous water pump failure and thermostat issue.
Jun 2014 73000 mi	Rough shifting between 1, 2, as well as reverse. Audi USA approved complete transmission replacement after fluid diagnosis appeared to show metal particles.

Audi A4 in New Jersey, United States Oct 2009 - Jan 2011
Apr 2010 6000 mi	Transmission failure. Mechatronics unit replaced.

Audi A4 in Michigan, United States Apr 2010 - Aug 2013
Oct 2010 3000 mi US $40	adjust headlights
Jan 2011 12200 mi	Rattle in dash. Flaw in paint.

Audi A4 in Manitoba, Canada Jun 2012 - Mar 2020
Jul 2016 41220 mi C $1200	One rear shock absorber
Jul 2017 46500 mi C $400	Rear high brake light
Dec 2017 48980 mi C $500	Secondary air flow low - repaired Replace battery
Jun 2019 54560 mi C $2200	Wheel bearing and front brakes and rotors

Audi A4 in Colorado, United States Oct 2012 - Jun 2018
Feb 2014 45000 mi	Computer module replaced in transmission. $1,100 in warranty work done.
Dec 2016 69000 mi US $500	replaced coils and plugs since they were causing car to misfire

Audi A4 in California, United States Apr 2013 - Jun 2016
Oct 2015 53300 mi	Car overheat. Thermostat stuck open. Replaced thermostat.

Audi A4 in Pennsylvania, United States May 2012 - Jun 2012
Jun 2012 10000 mi	The Convenience Key System Failed

Audi A4 in New Hampshire, United States Jan 2012 - Sep 2017
Mar 2012 25000 mi	Coolant level was low. Dealer did a leak check, no problem found. Added coolant, will monitor.
Jun 2014 41000 mi	Oil reading low even when not. Service bulletin had already been issued by Audi. Switch replaced.
May 2015 48000 mi US $350	Right wheel bearing noisy for a few weeks, started getting very loud. Replaced. Checking the old bearing, looks like a forging defect, small hole in the bearing race surface not penetrating the bearing. No ball bearings damaged.

Audi A4 in Virginia, United States Dec 2011 - Dec 2012
Dec 2012 21000 mi	Error light Transmission malfunction, whole unit replaced

Audi A4 in Illinois, United States Jul 2010 - Mar 2016
Sep 2010 30000 mi	water pump failed and had to be replaced
Feb 2011 40000 mi	the thermostat was replaced to prevent overheating
Jul 2011 44000 mi	the transimission was replaced
Aug 2011 46000 mi	transmission replaced after warning light gave "gearbox malfunction" reading
Jun 2014 113000 mi US $1000	wheel bearing needed replacement
Mar 2016 155000 mi US $800	alternator replaced

Audi A4 in California, United States Sep 2014 - Aug 2016
Feb 2016 107600 mi US $100	Hood struts failed Needed battery replaced Windshield washer nozzles

Audi A4 in New York, United States Oct 2013 - Oct 2014
Oct 2013 77000 mi US $2080	Transmission light came on, lost reverse while in VA. it had been occasionaly slamming into 1st from second for a while. ended up needing TCM/mechitronics replaced. Other than this the car has been flawless and is driving fine now.
Jun 2014 93000 mi US $960	Left front wheel bearing was droning and needed to be replaced. Hub and wheel bearing was done.
Sep 2014 99000 mi US $1200	car was overheating and needed to replace thermostat and water pump.

Audi A4 in Ontario, Canada May 2010 - Jul 2011
May 2010 310 mi	They had to replace the key part because it wasn't cranking the ignition.

Audi A4 in Georgia, United States Dec 2013 - Feb 2019
Mar 2017 66000 mi	Secondary air injection cleaning performed under extended manufacturer warranty.
Aug 2017 71000 mi US $100	Replaced failed tstat and water pump Replace PCV to remedy high oil consumption
Feb 2018 77000 mi US $400	Water leaking in both rear lamps due to broken seals. Seals replaced and one light kit replaced

Audi A4 in Ohio, United States Mar 2010 - Dec 2010
May 2010 1466 mi US $750	replaced radiator from rock blasting a hole in the radiator. Customer pay.

Audi A4 in Nevada, United States Sep 2014 - Nov 2017
Dec 2014 42000 mi US $650	Thermostat (located under the supercharger)
Apr 2016 60800 mi	Power door lock failed, replaced lock solenoid.
May 2016 64000 mi US $2200	Right side catalytic converter failed
Dec 2016 69000 mi US $596	Crank pulley, accessory belt, super charger belt

Audi A4 in Pennsylvania, United States Aug 2014 - Oct 2016
Oct 2014 59000 mi	The transmission didn't work
Jun 2016 82000 mi US $1500	Thermostat needed replace car was overheating

Audi A4 in Michigan, United States Sep 2014 - Dec 2016
Dec 2014 102000 mi US $10000	Had to replace the transmission
Apr 2016 125500 mi US $1800	emission sensor failed headlight failed Transmission failed
Nov 2016 132900 mi US $400	Faulty coolant line Faulty blower

Audi A4 in Arizona, United States Sep 2010 - May 2014
May 2011 7000 mi	Thermostat replacement.

Audi A4 in California, United States Dec 2012 - Jan 2013
Jan 2013	bad valves

Audi A4 in Arizona, United States May 2010 - May 2017
Dec 2010 10000 mi US $43	retaining clip for sun visor broke. replaced by dealer in 2 minutes
Apr 2011 18000 mi	TSB for thermostat. Dealer replaced
Sep 2011 26000 mi	Rear window power sunshade stopped working. motor replaced. Installed improperly and broke 2 days after repair. part ordered again
Nov 2011 28700 mi	rain sensor stopped working so no intermittent wipers. sensor replaced
Aug 2013 47000 mi	camshaft sensor caused check engine light to go on. Replaced under warranty
Dec 2014 65000 mi	Navigation system not recognizing satellite. Dealer can't establish connection with reboot. Recommends replacing nav system
Jul 2015 72000 mi US $650	navigation antenna not communicating with MMI
Oct 2015 75700 mi US $11000	Coolant in the cylinders

Audi A4 in New Jersey, United States Jun 2010 - Jun 2011
Jul 2010 5500 mi	Air fan was making a faint squeeking sounds. They said it was mal-aligned. Replaced under warranty. air fan was making a faint squeeking sounds. They said it was mal-aligned. Replaced under warranty. Rock perforated radiator. All coolant leaked within 15 mins. They replaced the radiator. No cost, since i've only had car for a few months. Very frustrating that audi does not protect radiator on such a car

Audi A4 in Pennsylvania, United States Sep 2010 - Mar 2013
Dec 2010 11000 mi	Car had multiple warning lights and went into "safe" mode. Car was towed. ABS pump replaced. ABS faults reset.
Apr 2011 16800 mi	Water pump and thermostat were replaced. Service bulletin, no symptoms.

Audi A4 in California, United States May 2010 - Jan 2018
Aug 2011 9000 mi	Rear speaker suddenly went to full blast or mute. No other volumes possible. Reset multimedia system myself + repeatedly shut off car. Dealer checked for faults + software updates. None found.
Feb 2012 14400 mi	Radio went to mute and would not recover. Automatically fixed itself overnight. Dealership checked for software update. None found. Could not duplicate problem.
Mar 2013 24000 mi	Noticed Nav button was sticky after last permaplate. Tech did something to try to make it less sticky, but did not completely succeed.
Mar 2014 33000 mi	Oil consumption was high. Brought it in for a 35,000 mile check one month ago - they said it was ok. Less than 1,000 miles later, it showed up as needing a quart of oil. They replaced oil separator and valves/gaskets.
Feb 2015 43700 mi US $100	Check engine light came on. Was a camshaft sensor that was broken. Would have been $290 + tax to repair at dealership, but I had an extended warranty.
Feb 2016 53400 mi US $658	Engine temperature kept on rising and low coolant warning came on once. Coolant level was fine. Faulty thermostat. Replaced thermostat. Wheel bearing was squeaking. Replaced both front bearings (left and right).
May 2016 57000 mi US $3083	During stopping of car, car would lurch forward. Esp. noticeable during warm temp. Replaced battery (did not solve issue). Then replaced mechatronics unit. During inspection for repair of transmission issue, dealership noticed rear diff. leaking. Replaced rear. diff. seal.
Mar 2017 65000 mi	Since mechatronics was replaced, had to push start button twice to start. Dealer followed TSB 20141242/2, updated the mechatronic control module software to 0009 via SVM.

Audi A4 in Ohio, United States May 2010 - Jun 2022
Dec 2010 22000 mi	Water pump failure, managed to drive to out of town dealer for repairs before total loss of coolant
Oct 2013 76500 mi	Bearing on left side
Mar 2016 97000 mi US $1500	left front and right rear wheel bearings

Audi A4 in Arizona, United States Jul 2010 - Mar 2016
Sep 2014 41000 mi US $1200	Thermostat failed stuck closed causing engine overheating

Audi A4 in Massachusetts, United States May 2010 - Sep 2017
Mar 2011 15000 mi	Sudden water pump failure with loss of all coolant. Car towed to nearest dealer and repaired, all the the manufacturer's expense.
Jun 2011 18000 mi US $382	A "sport differential failure" warning light came on without any other symptoms. Computer scan revealed this was due to transient low battery power. Battery tested okay.
May 2015 62400 mi US $300	Rough downshifts with with "S-tronic" dual clutch transmission. The dealer reprogrammed the mechatronic control unit. After a period of "readaptation" the problem persisted and I suspected impending mechatronic failure, however after nearly 2,000 miles driving it has improved.
May 2016 72000 mi US $1200	The "convenience module" failed and had to be replaced. This unit controls the keyless entry and vehicle start switch.

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Audi A4 in Ontario, Canada Dec 2013 - Jun 2022
Feb 2014 38600 mi	Previous owner had radio replaced by dealer and satellite radio was not working due to incorrect coding by dealer at the time.
Jun 2014 42160 mi	Gear shifter squeak.
Jul 2014 43400 mi C $57	Left rear wheel bearing replaced under extended warranty.
Nov 2014 46500 mi	Coolant thermostat failed. Previously dropped the car off when there were signs of something failing (radiator fan running at max speed) but dealer concluded "nothing wrong" as per their diagnostic tools.
Dec 2014 47740 mi C $2624	Clutch/pressure plate replaced
Jan 2015 39700 mi C $50	Driver side lock sensor failed, replaced. Adaptive headlights have a mind of it's own, updated software and adjusted wiring. In both cases, the issues were not resolved, car back in on 2/26.
Feb 2015 49600 mi C $50	Issues still with the driver side door lock sensor. Other sensors replaced. Behaviour with the adaptive headlight looked at again, still misbehaving when temperature is below freezing.
Apr 2015 52480 mi	Adaptive headlight misbehaving, tech worked with resources in Germany, applied a firmware for the controllers. Okay so far, need to test when -20C next winter!
Dec 2015 58900 mi	LED light for the km/h market in speedometer blinking. Cluster to be replaced under CPO.
Jan 2016 50040 mi	Part for gauge cluster received and replaced under extended warranty.
Jan 2017 61200 mi C $1100	Clutch master cylinder replacement to resolve issue with starting the car (had to depress the clutch very hard).
Jun 2018 80600 mi	Replace clutch fork which was causing hard to start issue (clutch really had to be depressed hard). Front rotors replaced, all pads replaced
Jun 2022 105400 mi C $1000	Loud whining, diagnosed to be the left lobe of the supercharger. Supercharger replaced with new-used part and about 50% of the whining noise reduced, supercharger idle pulley replaced but the noise was still there but less, accessory belt tensioner replaced resolved the last bit of noise due to bad bearings.

Audi A4 in Pennsylvania, United States Mar 2010 - Aug 2012
Nov 2010 5500 mi	Water pump blew leaving car unable to be driven. WP replaced
Jun 2011 11000 mi US $457	IC radiator punctured by road debris. Car flatbedded to dealer. IC radiator replaced. Tstat also replaced at that visit.

Audi A4 in New York, United States May 2010 - Jul 2018
Sep 2010 6000 mi	TSB for clicking clutch sound. Transmission dropped and parts replaced, but problem continues.
Aug 2012 31400 mi	gearbox is noisy when shifting gears with manual transmission
Jun 2014 46000 mi US $1100	squeaky gearbox and rough shifting
Jun 2016 59000 mi US $170	Rattle from rear dash/trunk

Audi A4 in New Jersey, United States Feb 2010 - Jun 2018
Dec 2010 14000 mi	Water Pump Changed because it was leaking.
Feb 2014 70000 mi US $900	Wheel bearing needed to be replaced.
Apr 2014 78200 mi	Oil was being used to quickly by engine due to an engine oil valve
Sep 2017 116000 mi US $3000	Clutch and flywheel - put performance parts in due to slightly more than stock.
Jun 2018 126000 mi US $1500	Suspension steering rods

Audi A4 in Florida, United States Apr 2010 - Apr 2016
Jun 2010 2000 mi	Clunk from right front suspension over bumps and on applying brakes. Diagnosed as improperly installed bushing at factory. Parts ordered but not arrived yet.
Jul 2010 3000 mi	Parts arrived and installed. Car available for pickup after 3 days in shop. Original problem corrected and has not recurred.
Dec 2010 7000 mi	Leaking seals on rear differential sensors. Parts on order; topped off fluid. Will return for install when parts received. Rear differential sensor seals leaking. Sensors installed, topped off rear differential fluid, adapted sensors to vehicle management system, test-drove.
May 2011 14000 mi	Coolant leak. Traced to cracked coolant hose. Hose replaced under warranty.
Apr 2015 65800 mi	Excessive oil consumption. The dealership replaced the oil separator, which has solved the problem. Because the car had been involved in a recall in 2011 due to a coolant pump issue, Audi of America extended the drivetrain warranty to 5 yrs/72K miles.
Jul 2015 68500 mi US $790	Erratic coolant temp and AC failure. Diagnosed as thermostat failure. Replaced thermostat.
Mar 2016 77000 mi	CEL light on; diagnosed as defective bank 1 combivalve. Ordered part. Prior to part arrival, CEL cleared and did not return. Part not installed.

Audi A4 in New Jersey, United States May 2010 - Sep 2012
Apr 2011 11000 mi	The engine thermostat was replaced
Mar 2012 20000 mi	Oil consumption issue. Traced to loose filter.

Audi A4 in Massachusetts, United States Mar 2010 - Jan 2014
Sep 2011 16000 mi	The rear axles were leaking at the differential flange. There was a TSB for this and it had to stay an extra day to be repaired. There was a squeak coming from the center console that I could easily replicate and illustrated to the dealer but they did not fix it. Brought the car back after failed previous attempt to repair creak in center console. After talking to service manager and describing the issue, they compared to another S4 on the lot and verified it was not normal and were able to repair.
Feb 2012 20700 mi	Had squealing brakes in temps under 40 degrees F. Found out there was a TSB for this and asked the dealer to perform the TSB on my car. Replaced pads rotors and caliper carriers ordered at last trip.
Apr 2012 20800 mi	Passenger visor clip broke while clipping the visor back in. They replaced the clip under warranty.
Jun 2012 25000 mi	A trim piece on the driver seat rail broke as I was adjusting the seat back. The shifter was squeaking when going from 5th to 6th gear or from going from 6th to 5th (Manual Transmission)
Dec 2012 30000 mi	Rattle coming from passenger side. Could be heard going over any road surface other than perfectly smooth and when playing music with a lot of bass. Dealer performed TSB for rattles when playing music with a lot of bass. Rattle from passenger side from previous trip. Occasional rough idle and odd vibration at just over 1000 rpm. Dealer said it was normal compared to other like cars. Dealer damaged door panel from previous trip. They patched it as a repair. Creak coming from center console. The dealership tried to adjust it but were not successful. Rear differential was leaking. The seals on the output flanges were replaced.
May 2013 35000 mi	The passenger front wheel bearing needed to be replaced. Passenger inner taillight had an LED that was out. Passenger inner taillight had an LED that was not working.
Jan 2014 42000 mi	Clutch release mechanism caused car to sometimes not start

Audi A4 in Alberta, Canada Apr 2010 - Jun 2016
May 2010 2480 mi	Low oil warning light came on. Took car to dealer who topped up oil for free.
Oct 2010 4640 mi	TSB issued for water pump prone to fail. Replaced by dealer under warranty.
Jul 2014 24280 mi C $300	Door lock switch cover fell off. Had to replace entire switch assembly.

Audi A4 in Georgia, United States Sep 2010 - Jan 2014
Oct 2010 7000 mi	Complete loss of coolant due to failure of water pump seal. During the car's 5000 mile service, loss of coolant was reported to dealer, but they could not find the problem and simply topped off the cooling system.
Aug 2011 16400 mi	Clutch pedal squeak was addressed by replacement of several parts in the transmission linkage.
Mar 2012 21000 mi	Clutch judder during take-off from stop. Clutch, pressure plate, and flywheel replaced.

Audi A4 in Maryland, United States Nov 2011 - Jun 2017
Dec 2011 45000 mi	TSB: Hood switch. MMI reported wrong oil level.

Audi A4 in Newfoundland / Lab., Canada Jul 2010 - Nov 2013
Jul 2010 2480 mi	B&O System (all sound) stopped working. Repaired by software/firmware update.
Dec 2011 16740 mi C $200	Broken wheel nut. Had all replaced due to high torque.
Jun 2013 31000 mi	A/C intermittently blasting hot or cold. Right rear proximity sensor reading objects as close that were not.

Audi A4 in Ontario, Canada Mar 2010 - Jan 2012
Jul 2010 8560 mi	Coolant dumped, had to replace water pump. Side assist (blind spot detection) needed to be replaced on passenger side. Second trip to get coolant leak entirely fixed. Dumped coolant again 2km after first repair. They said I also had a hole in the radiator for the intercooler but I couldn't find any hole in the old part. Probably covering up a mistake with first attempt. Installed replacement part for side assist.
Sep 2010 10540 mi	The shifter became very notchy and noisy like the internals had worn out for some reason. They replaced the entire shifter mechanism.
Dec 2010 12400 mi	The front headlight self levelling device continually adjusts when it is cold outside.
Mar 2011 15500 mi	Same issue as before - self levelling headlights not behaving. Audi reproduced problem and replaced on control system but problem returned couple of weeks later. Waiting on direction from Audi on next step.
Dec 2011 21700 mi	Clutch spring had noise issues and needed replacing

Audi A4 in Pennsylvania, United States Feb 2011 - Dec 2017
Jul 2011 27000 mi	Replaced pass. side downpipe, had a rattle inside at certain RPM's
Sep 2011 30000 mi	Took it in after noticing a creaking noise coming from steering column at low speed turns, dealer blamed on H&R OE Springs and did not want to investigate further
Feb 2012 35300 mi US $1600	Clutch started to slip during spirited driving. Replaced clutch with an aftermarket 6-puck Eurospec clutch. 2 Weeks later had to replace a failed clutch master cylinder. No problems to date.
Jun 2012 41000 mi	Driver side door handle started to crack, replaced under factory warranty. Had to wait for trip piece to come from Germany.
Dec 2012 47000 mi US $10	Intake air temp sensor on passenger side has an implausable signal, MIL on, dealership diagnosed, sensor working to specification, reached audi tech line, sensor replaced per audi tech line.

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Audi A4 in Colorado, United States Sep 2009 - Mar 2010
Oct 2009 2000 mi	LED turn signal on right headlight burned out. Resulted in having to replace complete headlight assy.

Audi A4 in Ontario, Canada Mar 2011 - May 2011
May 2011 14880 mi	thermostat repair and regular scheduled oil change. they did not install the oil filter correctly which forced a second trip to replace the filter and clean the engine bay of the leaking oil.

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Audi A4 in Great Britain Jan 2011 - Apr 2011
Mar 2011 8000 mi	Plastic impeller failed on water pump. Know problem to Audi. Informed by Dealer that Audi are instructing dealers to wait for owners to notice problem and fix it rather than recalling cars. Reason: shortage of water pumps / impellers

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Audi A4 in New South Wales, Australia Jun 2013 - Oct 2016
Jun 2015 43400 mi A $400	New PCV fitted to reduce excessive oil consumption.
Feb 2016 52700 mi A $1400	leaking engine mounts replaced
Mar 2016 52700 mi A $785	door lock failed, replaced door lock replace rear door lock
May 2016 57660 mi A $1600	side assist sensor replaced
Jun 2016 58900 mi	Mechatronic unit failed on S tronic transmission
Sep 2016 63240 mi A $1600	water pump leaking Engine mount bracket damaged. The problem occurred after the gearbox was repaired so i think it was probably caused by the workshop, I could be wrong. fuel fill hatch not opening Pistons and rings replaced due to excessive oil consumption.

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Audi A4 in Ontario, Canada May 2012 - Feb 2017
Sep 2012 51460 mi C $85	Convenience key (keyless lock/unlock) fail. Excessive oil consumption
Mar 2014 67580 mi C $50	Headlight washer jets do not work. Failure to extend from bumper below headlight.
Sep 2014 72540 mi C $50	Hood latch switch (electrical) failed.
Nov 2014 74400 mi C $365	Excessive oil consumption. > 1qt per 1000 kms. Oil consumption test is being performed
Dec 2014 75640 mi C $600	Excess oil consumption. Vehicle has 'failed' oil consumption test. Data has been sent to Audi for review.
Feb 2015 78740 mi	Performed Audit TSB 2039655/1 Excessive Oil Consumption. Measured cylinder bore for scoring - within limits. Replaced pistons and piston rings
May 2015 82460 mi C $1100	Carbon build up in intake jammed air intake flapper causing electrical actuator motor to fail.
Sep 2015 86180 mi C $100	Check engine light. Mechanic confirmed thermostat failure. Replaced part. Drivers sunshade clip broken.
Feb 2016 89680 mi C $200	Cam access plug fell out causing significant oil leak, rough idle, check engine light Driver side door keyless entry does not work in cold weather. Sensor is good, actuator freezes.
Jun 2016 91760 mi	Driver door window up/down switch intermittent
Feb 2017 98580 mi C $550	Left wheel bearing fail

Audi A4 in New York, United States Jan 2013 - Nov 2020
May 2013 26000 mi US $6	Replaced rear right brake light/turn signal
Jul 2015 41200 mi	After bringing in for oil change on June 24, oil light came on and brought it back on July 23. Less than 1000 miles later. Dealer did Step one repair of oil burning recall procedure. Said to bring back if issue continues. For step 2.
Nov 2015 42900 mi US $650	Oil light came on again, and step 2 was performed of Audi class action suit for Oil consumption. Dealer says the engine "basically now has zero miles" New pistons, rear seal, and also a new water pump.
Jul 2017 52000 mi US $20	Replaced HID headlight on right side after getting dipped right headlight error message

Audi A4 in Pennsylvania, United States Feb 2009 - Apr 2012
Nov 2009 9000 mi	amplifier module short, right front speaker short.
May 2010 15100 mi	High speed shimmy in steering wheel. Remedied by road force balancing the wheels and installing updated control arms. Low speed shudder in steering wheel at parking lot speeds. Remedied by a new-style power steering hose.
Jun 2011 25000 mi	New ECU flash per TSB concerning transmission not shifting out of 2nd gear intermittently. TSB concerning lubrication of sunroof assembly. Engine leaking small amount of coolant. Replaced hose clamp attaching coolant hose to water pump.
Feb 2012 33000 mi	Vehicle would not start. Comfort/convenience module faulty. R&R module, reprogram keys. car misfiring and eventually stalled out without being able to restart. #3 Fuel injector stuck open flooding engine. R&R #3 fuel injector

Audi A4 in Massachusetts, United States Aug 2013 - Jan 2015
May 2014 34300 mi US $18	REPLACE CYLINDERS BECAUSE FOR EXCESSIVE OIL USE. PROBLEM WITH SEAT BELT SENSOR AND AIR BAGS
Dec 2014 36000 mi US $1482	There was a blockage in the rear sunroof drains which caused an electrical short which caused an electrical short to the camera and the loud speaker amplifier.

Audi A4 in California, United States Mar 2009 - Sep 2012
Apr 2009 2000 mi	dings and paint scratches caused by shipping/delivery of car
Feb 2010 10100 mi	Sunroof wouldn't close. dealership couldn't replicate problem. periodic audio system doesn't shut off with ignition. dealership couldn't replicate problem.
Jan 2011 21000 mi	sunroof wouldn't close. TSB, parts replaced.

Audi A4 in California, United States Nov 2013 - Apr 2014
Nov 2013 42000 mi	Engine start button: letters started peeling off Driver's side door lock/unlock button: falls off when press unlock
Feb 2014 44400 mi US $444	Fuel filler door jammed and would not open. Couldn't gas up the car!

Audi A4 in New Hampshire, United States Jan 2013 - Jun 2013
May 2013 53000 mi	Loud moaning sound on cold start up. Dealer claims this is due t the air injection system, and "all 2009 A4 models with the 2.0 do this. I'm working on a second opinion on that. Also, power mirror pre-sets wouldn't work. They did fix that

Audi A4 in North Carolina, United States Jul 2010 - Mar 2013
Aug 2010 19000 mi US $55	Low speed shudder and high speed vibration. Power steering hose was replaced and new control arms were installed. Four wheel balance performed.
Oct 2010 21700 mi	After having the control arms replaced via the TSB at Audi Raleigh, the highway vibration is still there. Considered trading on a new Q5 2.0T but residual value was terrible on Q5 and trade-in value on A4 horrific. No clue what to do now!
Nov 2010 22000 mi	Wipers totally stopped working. On second occassion, took to dealer. Was a wiring harness/or relay. Replaced. Also the driver's sun visor wouldn't say put, replaced.
Aug 2012 45000 mi	Turbo assembly had to be replaced.

Audi A4 in California, United States Feb 2011 - Apr 2011
Mar 2011 42000 mi	Faulty turbo boost Diverter Valve. Repaired under warranty.

Audi A4 in New York, United States Nov 2009 - Feb 2022
Dec 2009 2500 mi	Loose Fuel Sending unit connection, resulting in "Fuel Level indicator showing EMPTY. Connection secured and problem resolved. Loose Fuel Sending unit connection, resulting in Fuel Level indicator showing EMPTY. Connection secured and problem resolved
Feb 2010 5500 mi
May 2010 7200 mi	Service Recal for Faulty power steering hose
Feb 2014 40100 mi US $1500	Leaking water pump
Jan 2015 48000 mi US $1700	Hub bearing
Nov 2021 93000 mi US $2000	Brakes

Audi A4 in South Carolina, United States Sep 2009 - Jan 2016
Oct 2009 4000 mi	Sunroof shade would not fully close. Pinch protection was being initiated. Lubrication of channels fixed problem.
Dec 2009 5000 mi	Weather stripping on sunroof prevented shade from fully closing causing pinch protection to be enabled.
Sep 2010 16000 mi	Clogged rear sunroof drain. Ordered replacement under warranty.
Dec 2010 16000 mi	Clogged rear drain was ordered and replaced problem returned again two weeks later. 2nd trip to fix water leak. This time was caused by drain tube coming out of nipple. Parts ordered and repaired and working as of now.
Apr 2012 39500 mi	Service bulletin for cam adjustment Sunroof drain on passenger side began leaking in passenger floor. Same problem occured 1 year earlier on driver side. Engine was using excessive amount of oil. Performed repair per service bulletin to correct.
Aug 2013 61200 mi US $850	CEL came on because a flap on the intake manifold was sticking. Intake manifold needed to be replaced.
Jan 2014 52200 mi	Oil consumption test confirmed that I needed to have phase 2 done to resolve problem. Replaced 4 pistons, rings and all gaskets. Was covered under warranty even though warranty expired.
Dec 2014 83000 mi US $400	Oil separator had a leak causing misfires in engine. Part was replaced.
Jan 2016 67000 mi	Water leak above rear driver side door.

Audi A4 in Alberta, Canada Apr 2009 - Aug 2018
Sep 2010 14260 mi	Material defect in intake manifold. Car idles rough and misfires at low RPM. Audi located the problem and ordered the parts. Problem manifold replaced and repaired. ECU reflashed. Much better performance.
Oct 2010 14560 mi	Blown and short circuited high end (manufacturer installed) Bang and Olufsen amp for stereo system. Parts flown from NY to LA to Vancouver to Calgary. hadn't realized this sound system was so rare and expensive. Too bad for Audi and B&O.
Nov 2010 16120 mi	Wiper Arm failure - caused wipers to be out of sync and damage each other. Failure of MMI software after previous AMP replacement - software updated.
May 2011 21580 mi	sunroof sensor software set to too low of a obstruction value
Sep 2014 60760 mi C $350	Needed new spark plugs and oil change.
Apr 2015 66740 mi	excessive oil consumption
Aug 2015 70620 mi C $1200	Cracked water pump housing due to improper repair by audi dealer service
Feb 2016 76220 mi C $1200	Failed integrated vaccuum advance on intake manifold rwquiring replacement of entire plastic manifold.
Jan 2017 77120 mi C $4000	Cv joints and brakes
Jun 2017 94240 mi C $15	replaced bulbs

Audi A4 in Illinois, United States Dec 2008 - Oct 2016
Feb 2009	Continuing electrical problem. Final determination was that the turn signal module was causing the audio amplifier to turn back on after the car was shut off.
Jun 2011 25000 mi	Backup camera not working properly. Tightened cable.
Oct 2011 28500 mi	Backup camera not working again two months later. Cable replaced. Fixed problem
Jul 2013 49300 mi	A/C & heater blower motor controller was not working properly. Fan would come on only slightly or not at all. Replaced with new blower controller but it didn't work either. 2nd time around the new part worked.
Jan 2014 47000 mi US $550	PCV valve failed resulting in excessive oil 'consumption'
Feb 2014 56000 mi US $325	Engine was misfiring and thus running very rough. Problem was finally diagnosed as an ignition coil failing
Feb 2015 66000 mi US $150	Lock sensor on exterior of door (for keyless entry/exit) was not working
Jul 2015 69500 mi	High oil consumption. Replaced pistons and rings.
Nov 2015 72000 mi US $1500	Keyless door locking and unlocking not working Headlights not rotating up into position
Sep 2016 87000 mi US $400	Accessory belt idler wheel broke and was replaced

Audi A4 in British Columbia, Canada Jun 2009 - Mar 2011
Dec 2009 5580 mi	ipod interface (AMI) is causing my ipod to lock up and requires a reset to continue working. There is apparently a firmware update that is currrently unavailable in Canada. Problem is intermittent and says "Device cannot be read"
Nov 2010 11780 mi	problem replicated, ipod cable replaced. Worked for a few days and locked up again. Dealer is working on new solution Low speed steering shudder on slick surfaces. Power steering hoses were replaced on TSB. Problem corrected. TSB Turbo coolant pipe replaced

Audi A4 in Ohio, United States Nov 2010 - Oct 2020
Dec 2012 40000 mi	While under the car to change the oil, I noticed a residue of dried coolant on the side of the engine oil sump. It led up the side of the engine to a very slow leak associated with the water pump.
Jun 2014 60000 mi US $280	A temperature/pressure sensor failed and had to be accessed for replacement.
Mar 2016 80000 mi	The car has recently been consuming more motor oil than before. The re is an action to deal with this issue. The oil separator and front crankshaft oil seal were replaced and the ECU was reprogramed.
May 2016 80900 mi	Engine was disassembled and new pistons and rings were installed. A new timing chain and timing chain tensioner was also installed
Mar 2017 89000 mi US $1300	Intake manifold developed an air leak and triggered a misfire and check engine light. The manifold had to be removed and replaced. While the manifold was off, the intake valves were cleaned.
Dec 2017 96000 mi	Rear hatch window washer stopped spraying. The nozzle was removed, soaked in vinegar, and unclogged by cleaning it with a small gauge wire. This restored the washer function.
Jan 2019 105000 mi US $40	The clamp that connects the front section of the exhaust system to the rear muffler rusted and began to leak. The clamp was replaced before it failed completely
Apr 2019 109000 mi US $1100	Replaced blown left xenon headlight bulb. Replaced worn brake rotors and pads

Audi A4 in New York, United States Feb 2011 - Oct 2014
Jun 2014 35000 mi US $50	Sun visor clip broke off. The dealer replaced it.

Audi A4 in Massachusetts, United States Jun 2011 - Jun 2022
Oct 2011 41000 mi	Air bag light. Was previously repaired by a different dealer who said they replaced the airbag. Came on again after 3 months, current dealer replaced airbag again, still not fixed, then electronic airbag control module. Backordered.
Jan 2014 96500 mi US $85	replace electronic ignition key lock mechanism after getting a 'defective ignition lock' error messagernrncar is on CPO, copay $85.
Aug 2014 87200 mi US $85	Excessive oil consumption. Dealer replaced oil 'separator' and initiated consumption test. Sunroof would not close - 'bounced' back when trying to close as if it hit an obstacle. Replaced motor. Worked for a little while.
Sep 2014 90000 mi	Sunroof again does not close, bounces back. This time they just cleaned and lubed it, and it has worked ok since then. I suspect that the cleaning and lube was all it needed.
Nov 2014 92000 mi US $280	significant oil leak from rear main seal
Nov 2016 104500 mi US $200	significant water leak into trunk area wheel well (Avant). Sunroof drains were clogged from tree drippings. Some cables got wet, ignition key would not come out and car could not be turned off -- had to remove fuel pump fuse.
Jul 2017 109000 mi US $900	front calipers partly frozen, pedal soft and low. Rotors damaged from rust, not just scored and not just on surface. Ground down and lubed caliper pins, replaced front and rear pads and rotors.
Nov 2021 127000 mi US $4000	not shifting correctly in 'automatic' mode, though shifting ok manually. Full transmission service, plus some kind of 'update'. Now works well horn not working. Lots of hours of diagnosis.Turned out to be wiring problem and module problem. Now working. ABS not working - dash warning - and turn signals didn't turn off. Replaced the steering angle sensor oil level sensor not working, warning light stayed on even after changing oil. Replaced sensor brakes badly vibrating. Installed new pads and rotors, cleaned and lubed caliper pins. Water accumulating in trunk/spare tire well, near the amplifier. Pools into the area all the way at the back driver's corner of that hatch, just above the bumper, or maybe even into the bumper area. Diagnosed, removed headliner, re-attached drain tubes, fixed another small leak. Update, April 2022: Looks like it is leaking again. Rear caliper bleed valves frozen. Very expensive to replace calipers (over $1200 each) if the valves are broken trying to open them, so did not flush brake fluid from rear lines.
Feb 2022 127000 mi US $550	investigated water leaking into Avant rear next to amplifier, and claimed it was because my suspension was lowered from the stock to the stock sport. And reconnected sunroof drains after removing then reinstalling the headliner. This only worked for a short period of time.
May 2022 129000 mi	returned car to shop that tried to fix it before, since lots of water on interior floor of car. They redid previous repair to sunroof drains, and seems to work ok now

Audi A4 in Georgia, United States Dec 2008 - Nov 2015
Jul 2009 11000 mi	60 MPH steering vibration Creaking or ticking noise from Open Sky panoramic sunroof.
Jun 2012 53000 mi	Stereo module in trunk would not turn off after turning off the car. It would drain the battery completely after a few days. Module replaced.
May 2015 71000 mi US $2207	Rear sunroof drain in panoramic sunroof became clogged and water overflowed into interior and on to the stereo amplifier. The stereo amplifier had to be replaced and the drains cleaned out.

Audi A4 in Illinois, United States Oct 2009 - Oct 2013
Jun 2011 29000 mi	Both electrical panels for lights in back of car failed and needed replacement. Panels lights include brake, turn signal, and parking. Both electrical panels for lights in back of car failed and needed replacement. Panels lights include brake, turn signal, and parking

Audi A4 in California, United States Aug 2014 - Jul 2015
Mar 2014 39000 mi	Rear hatch motor malfunctioned. Replaced under warranty.

Audi A4 in Michigan, United States Nov 2014 - Sep 2019
May 2018 142000 mi US $30	Replaced the display screen

Audi A4 in California, United States Jun 2017 - Jun 2022
Jul 2018 145000 mi US $560	Wheel bearing replaced

Audi A4 in Connecticut, United States Jul 2017 - Jan 2022
Aug 2017 138000 mi US $6500	Timing chain and tensioner. New intake valves, machine head, new intake camshaft. Oil change, coolant flush
Oct 2021 207000 mi US $500	Broken sunroof drain hose

Audi A4 in California, United States Jan 2009 - Mar 2010
Apr 2009 7000 mi	Sunroof water leakage. Sunroof cassette and headliner replaced

Audi A4 in New York, United States Jun 2017 - Sep 2017
Apr 2017 90000 mi	water pump replaced replaced brake pads rotors FRONT
Aug 2017 93000 mi US $700	brake vacuum pump leak replacement replace ball joints

Audi A4 in California, United States Jun 2017 - Sep 2018
Sep 2017 130000 mi US $525	Battery not charging. Alternator tested as failing, replaced.
Sep 2018 152000 mi US $1350	2 injectors were leaking fuel. Intake manifold operating improperly, stuck. All replaced.

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Audi A4 in Norway Sep 2015 - Jul 2017
Oct 2016 66220 mi $400	Battery worn out, time and wear

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Audi A4 in Great Britain Sep 2014 - Feb 2017
Apr 2016 119200 mi £420	Clutch Master and Slave cylinders replaced.

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Audi A4 in California, United States Jul 2012 - May 2014
Sep 2012 25000 mi	Had known issues with 2009 a4 taken care of shudder at low speed and shudder at highway speeds under warranty. Lower control arms and power steering hose replaced. Now care drives perfect, no more shudder.

Audi A4 in Victoria, Australia Dec 2012 - Jan 2014
Feb 2012 23560 mi	PCV changed, ecu reflash, camshaft adjusters
Dec 2012 40300 mi A $1200	stage 2 repair, piston and rings

Audi A4 in Oregon, United States Jun 2009 - Dec 2012
Sep 2011 20000 mi	Cruise control would not engage or respond. The cruise control switch was replaced.

Audi A4 in California, United States Jun 2009 - May 2012
Sep 2011 31000 mi	Audi TSB

Audi A4 in California, United States Jul 2009 - Jun 2021
Jun 2010 10000 mi	Got my control arms and power steering hose replaced due to vibration issues. Covered under warranty.
Jun 2014 51000 mi US $650	Leaking waterpump. Replaced pump and thermostat.
Sep 2016 75000 mi US $3000	Leaking water pump 3 leaking engine mounts
May 2018 90000 mi US $500	Bad coil pack causing cylinder misfire. Replaced all 4 coil packs.

Audi A4 in California, United States Mar 2009 - Mar 2010
Aug 2009 7000 mi	back right open/close window button comes loose and pops out

Audi A4 in British Columbia, Canada Apr 2015 - Dec 2017
May 2017 50220 mi C $600	Key sticking in ignition, whole ignition piece needed replacement. Compressor needs repacement

Audi A4 in Arizona, United States Jul 2009 - Jun 2011
Aug 2009 1000 mi	vibration felt at highway speeds. vibration problem resolved. vehicle drives smooth.

Audi A4 in California, United States May 2016 - Dec 2016
Jun 2016 50000 mi	Oil leak. 2 Coolant leaks.

Audi A4 in Texas, United States Feb 2015 - Jul 2015
Jul 2015 55000 mi US $1700	This month the car was taken in for a recall -- also found that the engine mounts needed replacing. Cost 1700.00.

Audi A4 in Minnesota, United States Mar 2009 - Apr 2016
Sep 2009 5000 mi	Moonroof air deflector poorly designed resulting in a rumbling sound between 25-45mph. Dealer ordered a redesigned air deflector. Redesigned moonroof air deflector installed sucessfully and wind rumbling noise now gone.
Oct 2009 6000 mi	The weatherstripping across the bottom of both front doors was beginning to separate from the door. Dealer reattached successfully, per TSB.
Jul 2010 15000 mi	Power steering hose design was defective - replaced with redesigned power steering hose.
Apr 2012 35500 mi	Replaced two interior door wood trim pieces, both of which were cracked.
Aug 2012 39100 mi	Fuel door would not release. Replaced door electrical actuator.
May 2015 75000 mi US $1460	Replaced crankcase vent valve, replaced front crankcase seal, perform software update, carbon blast intake valves.

Audi A4 in Michigan, United States Mar 2013 - Feb 2022
Sep 2015 68000 mi	Excessive oil consumption. Took car to dealer. Replaced some components and upgraded ECU software.
Oct 2015 68300 mi	Replaced pistons, rings and other components
Oct 2016 76200 mi US $3600	Shifting problems. Transmission jerking when going from 45 to 60 mph. Only upgraded software with no correction Dealer recommends changing transmission. No reman units available. Replace with new transmission
Jun 2021 119000 mi US $850	Alternator bearing worn out causing noise. Alternator assembly replaced.
Aug 2021 121000 mi US $1500	A/C stopped cooling. Internal issue with AC. Replaced

Audi A4 in California, United States Jul 2009 - Jun 2011
Sep 2009 5000 mi	Brakes were making a clunking noise when in use. All calipers and pad were replaced at 2000 miles. Had someone from Audi look at it.
Oct 2009 8000 mi	CVT was shifting funny... computer setting fixed the issue.
Apr 2010 14000 mi	Car is still at the dealer. This seems to be a braking issue. But the dealer still can't pinpoint the cause and solution.

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Audi A4 in District of Columbia, United States Sep 2009 - Jul 2016
Jun 2011 28000 mi	Excessive oil consumption (1 pint every 2000 miles). Dealer said within normal range, but Audi suggested a computer reflash and replacement of some parts. Excessive oil consumption described in problem 1. Parts installed.
Feb 2012 32000 mi US $125	Fog lamp grill popped out of car and had to be replaced.
Dec 2013 42000 mi	Navigation system controls became erratic. Dealer wanted $125 just to evaluate the problem, with the likely repair hundreds of dollars more. Outraged, I decided to buy a portable GPS system instead.
Nov 2015 52000 mi US $1227	Replaced water pump.
Jul 2016 54000 mi	Nav controls had become erratic.

Audi A4 in Missouri, United States Jun 2009 - Jun 2014
Oct 2012 63000 mi US $107	water pump replaced.

Audi A4 in Ohio, United States Jun 2009 - Oct 2017
Mar 2010 6000 mi	The electronic sensor in the door handle which activates when the key fob is near to open the door quit accepting signals. The whole door handle has to be replaced so part was ordered, has to be painted, and then installed on car at another date.
Apr 2010 6000 mi	Sensor in door handle to unlock the doors as you approach with the key fob.
Dec 2011 25000 mi	Flash the ECM to update the software
Mar 2012 30000 mi	Keyless proximity sensor on the door handle failed for the second time-but on a different handle but if one fails they all don't work. Oil Consumption in excess of manufacturers recommended add levels.
Apr 2012 31000 mi	The car failed the oil consumption test parameters and has been slated for new piston rings.
May 2012 31800 mi	The auto failed an oil consumption test and subsequently had the piston rings replaced due to faulty tolerances.
Jun 2013 51000 mi	The turbo waste gate was not operating correctly
Oct 2014 68700 mi	A long block had to be installed due to the camshaft being out of alignment and ruining the engine. The fuel line was connected improperly to the GDi pump.
Dec 2014 72000 mi US $1000	Battery was in excess of 5 years old and was starting to lose its charge
Mar 2016 93000 mi US $400	Turbo was not spooling sufficiently. Temporary fix: reflash.
Dec 2016 103000 mi US $4775	Turbo went bad and had to be replaced
Jul 2017 111000 mi US $625	Replace alternator pulley and belt
Sep 2017 113000 mi US $1400	catalytic converter failed and replacement failed and car had to use California emission catalytic converter to stop fault codes

Audi A4 in Maryland, United States Sep 2009 - Jun 2014
Oct 2012 24000 mi US $95	AC threw a fault, but software update was required. Updated software for free.

Audi A4 in Alberta, Canada Sep 2008 - Apr 2011
Dec 2009 8060 mi	Fuel gauge was reading empty after filling up the gas tank to full

Audi A4 in Texas, United States Sep 2009 - Dec 2010
Mar 2010 18000 mi	Found runner assembly in intake manifold was loose causing vacuum leak
Apr 2010 18700 mi	Installation of ordered part, car now runs normally

Audi A4 in Illinois, United States Jun 2009 - Mar 2010
Aug 2009 1200 mi	known issuee on all B8 Steering wheel Vibrations
Sep 2009 1400 mi	Fix rattling noises on the drivers side

Audi A4 in Arkansas, United States Oct 2010 - Jun 2011
Nov 2010 30000 mi	TPMS sensor on one wheel bad.

Audi A4 in New Jersey, United States Aug 2009 - Jan 2013
Feb 2010 2000 mi	Comfort access door handle sensor failure Comfort access - door sensor replaced
Jun 2010 6000 mi	Booming from sunroof when open - TSB to replace sunroof deflector. Suspension fault in dashboard. Repaired wire harness for sensors. Steering shimmy - roadforce balanced wheels as per TSB. Suspension fault. Wire harness replaced due to defective wire. Lower control arms replaced as per TSB
Jan 2013 2000 mi	Replaced drivers door handle due to internal short for keyless access.

Audi A4 in Colorado, United States Aug 2008 - Sep 2011
Sep 2011 32000 mi	Replaced "camshaft adjuster-in ELSA" under warranty

Audi A4 in Saskatchewan, Canada Aug 2009 - Apr 2015
Jan 2011 15500 mi	vacuum hose replacement (hose was cracked and was throwing codes).
Mar 2013 33480 mi	Squeaks coming from the rear of the car. Diagnosed as a rear door out of alignment. Adjusted door and lubricated seals around both rear doors. Problem was corrected and I wasn't charged for the service.
Apr 2015 44640 mi	turbo - wastegate repair. No charge - recall, extended warranty item. Scheduled appt, then got CEL before taking it in. Engine performance much better.

Audi A4 in Quebec, Canada Sep 2009 - Jun 2011
Oct 2009 8680 mi	Side assist warning of cars in blind spot that were not there !
Jul 2010 16120 mi	Bad new design of sunroof pop up wind deflector needed to be replace original design Bad new design of sunroof pop up wind deflector needed to be replace the original design
Jun 2011 26040 mi	Low speed steering vibration Installed new power steering hose per TSB

Audi A4 in Ontario, Canada Apr 2009 - Apr 2013
Jul 2009 2480 mi	Weather stripping/seals coming off along bottom of both driver (completely off) and passenger (starting to come off) front doors. Informed of a TSB regarding issue, new adhesive to be ordered.
Aug 2009 3100 mi	Return trip to have seals replaced and glued using new adhesive.
Nov 2012 32640 mi	Car displayed "Ignition lock defective" message on cold mornings.

Audi A4 in New Jersey, United States Jan 2009 - Mar 2013
Jul 2011 48000 mi	Intake manifold replaced - valve popped out replaced leaking water pump
Aug 2011 50000 mi	engine running rich - high pressure fuel pump replaced
Mar 2012 63000 mi	passenger outside mirror not heating up with defrost on
Sep 2012 76000 mi	oil consumption TSB stage 1 and 2 - replace breather valve - replace pistons/piston rings camshaft damaged - replaced timing chain stretched and damaged - replaced

Audi A4 in Washington, United States Dec 2008 - Apr 2011
Mar 2011 23000 mi	Door locks failed and were repaired

Audi A4 in Rhode Island, United States Nov 2008 - Dec 2016
Nov 2009 15000 mi	Blinking CEL, no power under boost, white exhaust and fuel smell, and rough idle. Was able to drive to dealer. Dealer found bad fuel injector. Part was back ordered, once dealer received part, was fixed that day.
Sep 2010 26000 mi	My intake manifold was leaking and they replaced the gasket I believe. Running great now!
Apr 2013 62800 mi	Oil consumption test. "Passed test". No repairs offered, told to add oil as needed.
Jun 2013 66000 mi US $400	Ac not working, they replaced high pressure vavle. Did not fix the problem and asked for $250 more for additional diagnosis. Refused and I am driving a car without ac. Will not take it back to dealer.
Dec 2016 114000 mi	I never had the A/C fixed. The quoted price was $3K and the dealership told me it may not last very long if fixed.

Audi A4 in New York, United States Mar 2009 - Sep 2011
Sep 2009 9000 mi	Door rubber trim became unglued. Per existing TSB repaired with new glue.

Audi A4 in South Carolina, United States Jan 2009 - May 2010
Aug 2009 5000 mi US $87	Steering wheel shimmy. Re-balanced tires, but that did not solve the problem. Problem may be caused by bad bushings in front control arms.
Mar 2010 11800 mi	Replace hose on power steering pump to stop low-speed vibration. replaced hose on steering pump to stop low-speed shudder
May 2010 11800 mi	The shimmy was still there when I traded the A4, although the dealer had road forced balanced the wheels twice. We were at the point where he was going to request replacement control arms for the fix.

Audi A4 in Ohio, United States May 2009 - Dec 2012
Jul 2009 16000 mi	Shimmy at speeds of 65 - 72MPH. Dealer knew of problem, there is a TSB and parts have to be ordered.
Feb 2010 30300 mi	Bright trim on door edges lost its luster, spotted and instead of shiny turned white. Parts were ordered, replaced, car was in body shop 1 day, no charges, car cleaned -- use of 2010 Q5 loaner. Happy with outcome. Second Audi with same problem.
Jun 2010 37000 mi	Chrome trim on upper surface of front doors (left and right) was replaced under warranty (rear had been replaced some time ago)

Audi A4 in Virginia, United States Dec 2008 - Jun 2011
Feb 2009 5000 mi	Key occasionally does not release from ignition slot upon turning off the engine. When warm, engine causes car to shake slightly when in gear and releasing the brake pedal, as to accelerate from a stop at a stoplight.
Aug 2009 13000 mi	Key fob was stuck in ignition, could not be removed, car could not be shut off. Key extracted, switch should be OK, but cosmetic plastic "gateway" for fob was broken during extraction, and has not been replaced.
Dec 2009 17000 mi	Traction control seems to set off ABS when going over select speed bumps, contrary to road conditions, occasionally causing temporary loss of control of vehicle.
Jan 2010 19000 mi	Same exact problem as previous trip; this time, technician from Audi of America looked at vehicle. Could not replicate problem, proclaimed the vehicle was operating within Audi specs and ordered the vehicle returned to me without repair. Yet another trip, following lead tech's visit to my home to experience the problem on his own. However, this was not listed on the W/O, so officially, Audi is still treating this as a non-problem.

Audi A4 in Maryland, United States Jan 2009 - Jan 2022
Nov 2015 65100 mi	Conducted Part 1 of 2 part 2.0 TFSI engine oil consumption test for excess oil consumption.
Mar 2016 68000 mi	Part 2 of oil consumption repair. Replaced pistons and rings due to excessive oil consumption.
Dec 2021 116000 mi US $950	Water pump failed and replaced.

Audi A4 in Ontario, Canada Jan 2009 - Jun 2011
Jul 2010 17980 mi	replaced driver's seat due to leather wear

Audi A4 in Massachusetts, United States Oct 2008 - Sep 2011
Jul 2009 11000 mi	Like many 2009 Audi A-4's, mine has a steering wheel vibration at 65-75 mph. Factory knows about this. (See Edmund's site). New lower control arms and bushings are on order.
Aug 2009 13000 mi	Exactly as Edmunds described it. Vibration in steering wheel at 65-75 mph. If TTAC would spend less time worrying about General Motors, and more on nuts and bolts problems like this and ones many others are experiencing, it wouldn't be such a bad thing.
Sep 2009 14000 mi	The lower control arms were replaced, the wheels were hard road balanced, and the car, so far at least, feels perfect. Problem appears to be resolved.

Audi A4 in California, United States Feb 2009 - Mar 2010

Audi A4 in Kansas, United States Aug 2009 - Apr 2011
Sep 2009 5000 mi	Tires were never adjusted from shipping pressure of 50 psi.

Audi A4 in California, United States Dec 2008 - Sep 2012
Jul 2010 20700 mi	Car started shaking when driving and made loud grinding sound.
Mar 2011 38000 mi	The car felt like it was stalling while driving and prior to stopping. Software was updated to repair problem.
Oct 2011 46500 mi	Low oil light would come on frequently even after filling up. Software was installed to correct.

Audi A4 in Arizona, United States Apr 2009 - Mar 2015
Jul 2009 3500 mi	In warranty tire replacement to alleviate vibration. Control arms ordered and will be installed in about a month. In-warranty tire replacement to alleviate vibration. Control arms ordered and will be installed in about a month.
Sep 2009 7000 mi	Control arms replaced. Control arms replaced. Air conditioner exhibited strange smells. filter was wet, A/C cleaned and filter replaced by dealer.
Dec 2009 11000 mi	Replaced the "START ENGINE" button because a small chunk of the metal came off.
Jun 2010 19000 mi	Passenger visor broke
Nov 2011 32000 mi	Side assist malfunction.
Jan 2013 41000 mi	Faulty ECU, caused battery to completely discharge. Dealership replacing under warranty.
Feb 2013 41700 mi	Battery died again, dealership replaced headlights, battery, instrument cluster and a bunch of other things. installed headlights from previous repair was no leveled properly. driver side light perpetually in a high beam like postion. still in the shop right now.
Mar 2015 60000 mi US $900	replaced both cooling fans due to failure

Audi A4 in Pennsylvania, United States May 2009 - Jun 2012
Jul 2009 1800 mi	steering wheel vibration, 3 tires were replaced but no fix. So new control arm has been ordered, and has not yet arrived to install. shimmy steering wheel at 60-70 mph. (two trips to dealership and the problem still exits)
Aug 2009 5000 mi	All doors' rubber moldings are loose. (dealership applied new glue but few hours later they pop out again.
Sep 2009 6000 mi	new control arms were installed, but they do not eliminate the steering wheel vibration completely. new glue was ordered.
Oct 2009 10000 mi	rubber moldings were replaced
Jul 2010 26200 mi	New hose is replaced to eliminate the steering wheel vibration during parking maneuver Occasionally, the transmission won't upshift from the 2nd to 3rd gear. Dealer refreshs the TCM.
Nov 2010 32000 mi	Have been receiving Audi Side Assist system faulty messages constantly. Dealer updated the software per Audi TSB. Have been receiving Audi Side Assist system faulty messages constantly. Dealer updated the software per Audi TSB.
Jan 2011 37000 mi	Side Assist System fault, button was replaced.
Feb 2011 38000 mi	Coolant slow leak, dealer replaced water pump assembly.
Aug 2011 47000 mi	15D6 RVU for camshaft adjuster and camshaft replacement Tech found vacuum pump leaking and replaced vacuum pump
Sep 2011 48000 mi	fuel pump and camshaft follower were replaced because of engine noise during acceleration
May 2012 58300 mi	Oil leak from timing case cover seal

Audi A4 in Alabama, United States Mar 2009 - Mar 2010
Jul 2009 7000 mi	Steering wheel vibration at high speeds. Unresolved. Strong spare tire rubber smell invaded the cabin when ambient temperatures became too high. Resolved. Wrapped the spare tire in plastic bags.

Audi A4 in Kentucky, United States Apr 2009 - May 2015
Apr 2009 112 mi	Lever to adjust steering wheel wouldn't lock. Was repaired in 10 minutes.
Dec 2009 7000 mi	Static in rear speaker, new part ordered and replaced by dealer under warranty.
Dec 2014 58000 mi US $350	Replaced battery
Mar 2015 60000 mi US $62	Engine control unit

Audi A4 in Ontario, Canada Oct 2010 - Mar 2013
Jun 2011 32860 mi	The steering was very noisy when turning the wheels left and right, the dealer order the part to fix it, they said it was a known problem but I can't find the paper explaining the exact problem.

Audi A4 in Texas, United States Sep 2009 - Jun 2018
Oct 2014 69000 mi US $2830	Replace faulty blower motor and switch Replace water pump due to coolant leak Replace faulty motor mount due to hydraulic fluid leak
Mar 2018 97000 mi US $700	Worn calipers, rotors and pads

Audi A4 in Illinois, United States Mar 2009 - Mar 2015
Sep 2013 47000 mi	Needed a new turbo. Out of warranty time wise but within warranty mileage wise. AOA covered the repairs after a little nudge from me.
Mar 2015 68000 mi US $350	Needed a new water pump Needed to replace the right front headlight assembly.

Audi A4 in Virginia, United States May 2009 - May 2011
Apr 2010 31500 mi	MMI system drops bluetooth and radio mysteriously comes on by itself. This appears to be a common problem with the A4s that Audi wont fix without error codes. Resolved itself.

Audi A4 in Arizona, United States Jun 2012 - Nov 2015
Jun 2014 49000 mi	turbo assembly and water pump replaced.
Nov 2014 55000 mi	air in brake lines. mechanical bleed did not work, brakes we manually bled and problem corrected.

Audi A4 in Michigan, United States May 2012 - Mar 2016
Oct 2012 41000 mi	It feels like the vehicle is not driving smooth. You can feel some annoying vibration coming in to the cabin at 55+mph on smooth roads.
Aug 2013 44000 mi	Engine was burning oil too quickly. The dealer had to make some adjustments to fix the problem, but no details were provided.
Oct 2013 45500 mi US $500	Ignition Key was not starting the engine sometimes. A yellow key symbol with a red cross (X) on it came on the instrument panel with an error message.

Audi A4 in Minnesota, United States Jul 2009 - Aug 2012
Nov 2009 7000 mi	ignition switch replaced
Apr 2010 14000 mi	Shudder in steering repaired with new power steering hose as per tsb.

Audi A4 in Alberta, Canada Jan 2013 - Jul 2022
Apr 2015 60420 mi C $850	Engine light came on--Needed to replace water pump and change oil separator. Car still drinking too much oil.
Oct 2015 70460 mi	Excess oil burn. They made the service adjustment in early April but no change. Taking it in for another fix.
Nov 2015 71260 mi	Excess oil consumption. Dealer did a measurement. There is a class action law suit Audi has settled on excess engine oil consumption. Problem still not resolved on the car. I'm taking it in again.
Jan 2016 72840 mi	Excess oil consumption. Dealer still had not resolved it per Audi of America directions.
Jul 2016 77480 mi C $1700	Excess oil consumption-went Audi court settled repairs for warrantied Piston rings, bearings replacement. Covered by Audi. Car still consuming excess oil-going back to dealer for test I paid for timing chain, oil pan and carbon cleaning.
Sep 2016 80600 mi	Additional repairs for excess oil consumption. Car was tested and rings, piston and oil cover were replaced. Appears to be fixed.
Mar 2017 83080 mi C $900	After piston replacement job done by Audi, the timing cover chain was leaking oil. It required a warranty work Intake manifold issue sensor not working within parameters. Engine light coming on. I had to have the intake manifold replaced.
Nov 2017 90520 mi C $990	Front Right Passenger Door Actuator lock failed and had to be replaced
Oct 2020 109120 mi C $900	Rear Right side wheel bearing
Nov 2021 111 mi C $300	Left Rear wheel bearing replacement

Audi A4 in Michigan, United States Jan 2013 - Jan 2018
Oct 2013 91000 mi US $2500	Computer system issue
Sep 2017 195000 mi US $8200	Blown timing chain. Full engine replacement.

Audi A4 in Massachusetts, United States Mar 2012 - Sep 2015
Apr 2012 42500 mi	Center rear break light failed
Dec 2013 59000 mi US $85	Broken caliper causing loud banging noise when braking in reverse (after having been driven forward).
Sep 2014 66000 mi	Temp gauge was drifting down after the car came up to operating temp. Diagnosed as failed thermostat. Replaced thermostat / water pump assembly under CPO. Coolant leaked after picking car up, replaced with second water pump assembly.
Jul 2015 70000 mi US $1500	Sunroof frame cracked, water leaked in and stained the headliner and soaked the carpet. Sunroof frame was replaced, interior cleaned.

Audi A4 in New Mexico, United States Nov 2011 - Oct 2014
Feb 2012 26800 mi	car shuddered badly at slow speeds. dealer replaced a hose and it's 90% bettter
Jul 2012 31300 mi	Steering shudder
Oct 2014 51000 mi US $2300	Turbo charger failed

Audi A4 in California, United States Jul 2011 - Jun 2013
Apr 2012 32000 mi	Visor clip broke during use, was replaced under warranty.
Sep 2012 37000 mi	Excessive oil consumption
Dec 2012 42000 mi	Center rear brake light was intermittently giving a signal that it was burnt out but wasn't. The dealer replaced the rear center brake light assembly.

Audi A4 in New York, United States Sep 2011 - Feb 2013
Feb 2013 68000 mi US $1000	MISFIRE CYLINDER #1, ALSO BURNING A QUART OF OIL PER 1200 MILES. NEVER GOT TO THE MIS FIRING PROBLEM, SOLD CAR.....

Audi A4 in Massachusetts, United States Sep 2011 - Jun 2012
Apr 2012 47500 mi	Engine was consuming excessive oil. Got a low oil error on the dashboard. The car was still under warranty, so they put some new parts and adjusted the cam shaft position. Dealer told that they are aware of this problem with Audis with turbo

Audi A4 in Michigan, United States Feb 2013 - Mar 2013
Mar 2013 32000 mi	Steering wheel shudder/judder at low speeds when backing out of a parking spot. Steering wheel vibration at highway speeds. Dealer could not duplicate the problem. This is now the 4th time the car has been in for this problem

Audi A4 in Massachusetts, United States Mar 2013 - Sep 2018
Jul 2013 89700 mi	Oil consumption/leakage. In the shop for diagnosis.
Sep 2013 93000 mi	New pistons / rings / gaskets - oil consumption issue. It seems mostly fixed, but still consuming a little oil (very little compared to what it was consuming).
Mar 2017 134000 mi US $500	Rear shock was leaking. Also damage repair from prior accident.
Apr 2017 135000 mi US $250	Car was blowing hot air. AC leak was repaired.

Audi A4 in Georgia, United States Jul 2016 - Apr 2017
Oct 2016 108800 mi US $7000	Engine Replacement: catastrophic failure due to tensioner failing

Audi A4 in New York, United States Mar 2017 - Mar 2018
Apr 2017 105000 mi	Total engine replacement. 2012 Audi A4 engine put in. This was due to the notorious Audi Oil Consumption problem noted in previous year models. I had the car back from this repair for two weeks when the 2012 engine then blew on April 4th. Two weeks after the installation of a 2012 engine into the 2009, the engine blew again on the highway.
Sep 2017 118000 mi US $745	Wheel bearing was rusted on and shot. Oil change.

Audi A4 in Georgia, United States - Oct 2008
Oct 2008 1800 mi	Bad water pump. Waiting on part from Germany. Total time in the shop will be over 2 weeks.

Audi A4 in Connecticut, United States Dec 2008 - Mar 2018
May 2017 99000 mi US $1600	preemptively replaced timing chain / camshaft. Drain and replace transmission fluid.

Audi A4 in Texas, United States Apr 2016 - Apr 2016
Apr 2016 87000 mi US $800	Water pump failed and leaked coolant. Water pump was replaced.

Audi A4 in Pennsylvania, United States Nov 2015 - Jul 2017
Dec 2015 92000 mi US $550	Motor Mounts
Jan 2017 110000 mi US $800	New Turbo
Jul 2017 116000 mi	timing chain broken - car is scrap

Audi A4 in Wyoming, United States Dec 2012 - Jun 2018
Jan 2014 55100 mi	Oil Consumption, replace PCV & gasket, pulley bolt and ECM flash.
Feb 2014 51100 mi	Oil consumption part two. Replace pistons, rings, and all gaskets.
Jul 2016 71500 mi US $100	Timing chain tensioner failure. Headlights replaced.

Audi A4 in Georgia, United States Oct 2013 - Dec 2016
Jul 2016 116700 mi	Alternator.

Audi A4 in New York, United States May 2015 - Mar 2016
Jun 2015 106000 mi	Check engine light with code P2181 which is a well known issue with a coolant temperature sensor
Mar 2016 118000 mi US $2000	Timing chain stretched resulting in $2000 repair to replace with no assurance that it would fix issue. Decided to trade in for 2013 Audi A6

Audi A4 in Iowa, United States Jun 2011 - Jul 2018
Jan 2015 65000 mi US $675	Intake manifold had a faulty flap and needed replacing.
Mar 2015 55000 mi US $222	Battery died Oil separator valve leaking
Jan 2016 56700 mi	Engine was built with one piston of the wrong size, causing excessive oil consumption. Audi did consumption tests and determined that the engine needed to be rebuilt with the correct part installed.

Audi A4 in Colorado, United States Jul 2012 - Dec 2017
Sep 2012 51000 mi	Replace lower control arm bushings, shimmy at high speeds
Oct 2012 52000 mi US $85	Cruise control wouldn't work. Dealer replaced steering column stalk. Now works as it should. Fuel filler door servo intermittant. Replaced servo under CPO. Low speed shudder while turning. power steering hose replaced via TSB.
Mar 2014 74000 mi US $85	Known oil consumption issue with this 2.0t engine. Took in for Stage 1 and Stage 2 repairs. Oil use was 0.5l/1000mi. Received new pistons and rings. So after 500mi, no oil consumption issues.
Nov 2014 84700 mi US $450	Front passenger door wouldn't lock. Diagnosed as needing a new actuator. Actuator replaced.
Dec 2014 84000 mi US $400	Intake manifold leaking. Redesigned intake manifold installed. Audi paid for one-half of bill as car is only 4 months out of CPO warranty.
Jul 2016 107000 mi US $1800	Rear main seal leaking. Rear main seal replaced.
Feb 2017 115583 mi US $330	Replaced driver's door actuator. Also included car rental for 1 day.
Apr 2017 117000 mi US $70	Passenger side HID lamp burned out. Replaced both bulbs.
May 2017 118000 mi US $110	Heating element on the upstream O2 sensor failed. Replaced sensor.
Jul 2017 119000 mi US $50	Drivers side rear door latch assembly replaced. Bought used part on ebay and replaced it myself.

Audi A4 in Washington, United States Oct 2010 - Jun 2011
Nov 2010 24000 mi	door locks dont function with audi advanced key
Dec 2010 26000 mi	Door handles replaced

Audi A4 in Nebraska, United States Mar 2010 - Mar 2014
Jun 2010 18000 mi	Slight vibration at low speeds from steering wheel column. Power steering hose replaced according to the TSB
Dec 2010 23000 mi	Radio sound issues. Would cut in and out and was not clear. Bang and Olufsen system as well. Amp was replaced, but did not fix the problem. Air conditioning fan whistles. Less frequent, but still happens
Apr 2011 28000 mi	Sound cutting in and out. Was told that it is the DSP system in the Bang and Olufsen sound system. New antenna installed. Problem is only slightly better.
Dec 2011 36000 mi	My air conditioning was whistling. Had been repaired before and had come back again. Dealer could not replicate so no repair was completed.

Audi A4 in Ontario, Canada Feb 2011 - Apr 2020
Apr 2014 55180 mi C $1	Oil consumption
Feb 2015 62860 mi C $1	Passenger side underbody panel came loose
May 2015 64480 mi	Car shakes under load at low rpm. Suspected u-joint, torque converter or other problem
Sep 2015 80600 mi C $250	Fuel injectors replaced (x2). Carbon cleaning.
Oct 2015 84320 mi C $250	Piston rings and Pistons replaced for oil consumption

Audi A4 in New Jersey, United States Jul 2010 - May 2016
Sep 2010 18000 mi	Rear suspension bushing making noise
Mar 2012 33000 mi	Replace crankcase pressure regulator valve
May 2012 33900 mi	Replace camshaft adjuster. Preventative. The car showed no symptoms. The dealer just volunteered to do it.
Jul 2013 46000 mi US $3000	Air conditioner enclosure leaking - water pooled on floor. Replaced the enclosure and the fan control module. Door gaskets detached. Gaskets were replaced.

Audi A4 in Alabama, United States Jul 2010 - Dec 2014
Nov 2012 30900 mi	Low speed stutter in steering. Hose replaced.

Audi A4 in District of Columbia, United States Feb 2010 - Jul 2013
Aug 2010 17700 mi US $500	Car using over 1 quart of oil every 500 mi.

Audi A4 in Quebec, Canada Nov 2009 - Sep 2011
Mar 2011 17360 mi	Vibration in the steering when turning the wheels at idle (no speed) Power steering pump replaced

Audi A4 in Illinois, United States Feb 2010 - Jun 2012
Mar 2010 14000 mi	Proximity sensor for keyless entry failed for second time in a couple of months. Both rear door handles had to be replaced. That repair caused the inner door handle to fail shortly after picking the car up. Now need to return for that repair!
Jul 2010 18700 mi	Sunroof pinch sensor malfunctioning and was difficult to close sunroof
Dec 2010 25000 mi	Steering vibration when turning wheel at slow speeds Passenger sun visor clip broken
Jun 2011 29000 mi	Lower control arms (finally) replaced

Audi A4 in Maryland, United States Oct 2009 - Jul 2018
May 2010 8000 mi	rt side rear view mirror bulb assembly was faulty
Jan 2012 22000 mi	slowly losing coolant with no apparent cause or location
Mar 2013 33000 mi	from a stop transmission occasionally stayed in 2nd gear;would not upshift.Dealer reflashed transmission module/computer.So far alls good. Passenger side seatbelt latch sensor failed.It tripped multiple dash warning lamps.

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Audi A4 in South Africa Sep 2011 - Jun 2018
Mar 2017 104160 mi R 80000	I was experiencing excessive oil consumption so all four pistons were replaced with OEM parts by the dealer but I had to pay the full price for the repair.

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Audi A4 in New York, United States Mar 2009 - Jan 2015
Mar 2010 15000 mi	Trunk side panel would not stay latched closed, upon delivery when new. Dealer ordered part and I waited until the 15k service to have it replaced. Work successful. 6 speed manual transmission has developed a 'notch' when shifting into second gear. Mechanic was able to duplicate issue and attempted repair. Adjusted shift linkage which was out of spec - improved but not good enough yet. HVAC smells like mold or mildew when the AC button is active. Dealer replaced filter as part of 15k service and hoped this would fix. Offered to deodorize the system but not under warranty. Disappointing as this has happened since ~ 5k miles. B&O Speakers in the front doors rattle when listening to Sirius talk radio, particularly male voices. Easy to duplicate but dealer claimed they were unable to do so. I'll revisit them in person to demonstrate the issue.
Aug 2011 30000 mi	TSB related to camshaft - completed same time as scheduled maint. Start button lettering cracking - replacement part ordered. Manual transmission - shifting between 1st and 2nd gear is imprecise. Dealer spoke with Audi techs and confirmed repair will require replacing parts and ordered same.
Jul 2014 55300 mi US $330	Engine misfiring during boost
Sep 2014 57000 mi US $125	Failed PCV - replaced with updated part 06H103495AC. Confirmed after replacement that the gasket inside had torn. Common problem - under 1 hour DIY.
Oct 2014 57500 mi US $1000	Failed aftermarket front coilover - internal component failure required replacement from manufacturer.
Jan 2015 60000 mi US $1600	Clutch slipping. Could have driven for thousands of miles if I baby it. Replaced with ClutchMasters FX350 and retained flywheel which was in good shape. Cannot fault Audi for failure - my car makes far more power than stock.

Audi A4 in Georgia, United States Jul 2009 - Nov 2016
Dec 2010 31000 mi	Check engine light came on and indicated intake manifold problem. After testing determined flaps inside intake manifold were loose. Replaced intake manifold.
Feb 2013 75700 mi US $900	Check engine light. Indicated misfire in 3 cylinder. Determined to be carbon buildup on valves. Cleaned valves. Significant improvement in mpg noted and engine running very well
Jun 2013 85000 mi US $531	vent valve sticking and drawing oil from rear seal - replaced and updated computer
Dec 2013 95000 mi US $400	right reat door sensor for convenience locking system bad, which caused rest of sensors not to work.
Jul 2014 105000 mi US $450	Completed Stage 1 oil test and failed. Installed new rings and pistons. Serpintine belt failed
Nov 2016 151000 mi	Timing chain broke or stretched requiring engine replacement.

Audi A4 in Colorado, United States May 2009 - Jul 2012
Sep 2011 27000 mi US $45	updated variable valve system

Audi A4 in South Australia, Australia Jan 2009 - Jan 2014
Mar 2009 1860 mi	Rattle from center console at city cruising speed. Ceased itself 2 days before car was booked to go to dealer, but took it anyway. Dealer checked console and trim to ensure the rattle didn't return. They didn't find anything but the rattle hasn't returned
Mar 2011 30380 mi	The trim on the start button had begun to bubble and lift so the dealer replaced it at no charge
Dec 2012 51460 mi A $180	Driver's door sensor and fuel cover sensors were replaced. Keyless entry system had stopped working properly. Replaced air intake sensor. Engine warning light came on and stayed that way. 2 trips to attempt repair required. 1st attempt was just reset of codes and test drive.
Jan 2013 52700 mi A $200	Battery died and replaced
Dec 2013 58280 mi A $400	Stop/Start button surface lifting again Gear lever boot split

Audi A4 in California, United States Mar 2009 - Jan 2010
May 2009 1000 mi	Seat back needed repair. The seat back wasn't closed properly, the cover wouldn't stay snapped on... It looked like it wasn't assembled properly from the factory.

Audi A4 in California, United States Mar 2011 - Jun 2018
Apr 2011 18000 mi	low speed shudder issue resolved by replacement of power steering hose.
Aug 2012 33000 mi	control arms replaced to resolve high speed vibration issue
May 2013 43000 mi	stage 1 oil consumption repair performed. Returned after 800 miles for consumption calculation. no further repair needed. two trips to the dealer.
Aug 2014 61000 mi	check engine light went on. scan indicated intake manifold fault. intake manifold replaced. covered under the 7/70 california emissions warranty.
May 2017 98000 mi	Rear main seal leak ... also pcv failed. estimated cost of rear main seal $1000-$1100. i authorized replacement of clutch and resurfacing of flywheel, as the addtl labor cost was nominal, and clutch was nearly 100k old. replaced failed pcv myself.
Jan 2018 103000 mi US $200	rat or other animal ate thru the wiring on a sensor ... car would not start ... wiring in a difficult position, so a mechanic's involvement was needed.

Audi A4 in Ontario, Canada Apr 2009 - Apr 2017
Oct 2010 19220 mi	Damaged / missing intake manifold. Noticed due to engine stalling when turning on a side street (dangerous!!) and whole car shaking on idle. Parts ordered once diagnosed by dealer then replaced next day.
Jun 2012 37200 mi	Front wheel bearing was replaced
Jun 2014 57040 mi C $500	Replaced front left bearing. front was replaced at ~50k km
Nov 2015 68200 mi C $400	rear headlight level sensor broke. needs to be replaced. exhaust clamp broke and had to be replaced. Discovered the problem, drove 40km to garage and exhaust almost fell.. had to wait for part to come in.
Feb 2016 71920 mi C $1500	Excessive oil consumption. Will have to see if I can get it covered by the dealer. water pump was cracked. excessive oil consumption. did stage 1.
Sep 2016 76260 mi C $1400	wheel bearings,

Audi A4 in New Jersey, United States May 2009 - Feb 2012
Dec 2011 89000 mi US $6000	Complete replacement of the head
Feb 2012 89000 mi	Check engine light on for the 6th time in 3 years.

Audi A4 in Kentucky, United States May 2012 - Jan 2015
Jan 2015 97000 mi US $2500	Crack in water pump. Alternator burned out.

Audi A4 in New York, United States Mar 2012 - Dec 2013
Aug 2012 59800 mi US $1200	Left tie rod end loose, causing vibration at 65-80 mph. I had both tie rods ends replaced as a precaution, $500. Right front upper control arm bushing noted to be ripped. Both sides (upper) preventatively replaced, $700.
May 2013 68000 mi US $85	Part I of Oil consumption test including replacing breather valve and seals. Replaced water pump. Replaced gas tank cover actuator.
Jun 2013 70000 mi	Part 2 of oil consumption test: failed Replacement of pistons and piston rings. Car started bucking at 3-5 rpm. Took to shop, but no check-engine lights came on. No fault codes found in computer. No repair made. They suspect bad fuel as the culprit.
Sep 2013 75000 mi US $540	Car acceleration not smooth, surging with wide open throttle. Low pressure smoke test showed a leak in the engine cover/timing belt cover. 1 day to diagnose. 1 day to install new parts.

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Audi A4 in Great Britain Mar 2010 - Dec 2013
Apr 2010 6000 mi	Whilst being driven, car electrics cut out, engine/power steering kept running, but airbag/ABS/Engine management light came on, rest of display went blank, indicators etc electrics failed. Audi: faulty alternator & gear position switch

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Audi A4 in Tennessee, United States Jan 2016 - Sep 2017
Jan 2017 US $1400	AC Compressor had totally died. Required complete replacement
Feb 2017 110000 mi US $6000	Transmission repairs. Control arm replacement, battery replaced. Several other parts replaced that were leaking oil. Oil change. Fan unit replaced. O2 sensor replaced.
Jun 2017 114000 mi US $800	Radiator was punctured somehow. Discovered because coolant was leaking. Replaced radiator, and everything was fine

Audi A4 in British Columbia, Canada Dec 2009 - Apr 2012
Feb 2011 14260 mi	Fuel door release servo was intermittent from convenience locking with keyless system; worked always with key fob unlock. Slight inconvenience.
Apr 2011 15380 mi	One keyless door sensor would not lock the car.

Audi A4 in Manitoba, Canada Oct 2009 - Jul 2017
Mar 2011 14880 mi	Air bag sensor is on. faulty switch in passenger seat belt clasp
May 2013 34720 mi C $1800	Replaced leaking fuel injectors and spark plugs. Replaced leaking coolant line.
May 2014 39560 mi	Warranty paint repairs
Jul 2015 47220 mi C $550	Repaired paint chipping from front wheel wells caused from kick-up of material by front tires. Both fenders were repainted and 3M plastic film installed over problem area
Oct 2015 47840 mi C $250	Warning indicator lights randomly turning on

Audi A4 in Singapore Jul 2008 - Mar 2010
Mar 2009 4340 mi	Right rear door could not be opened from the outside. Suspected damaged from my daughter. Ordered part installed. Problem solved

Audi A4 in New Jersey, United States - Jan 2009
Jan 2009 11000 mi	Reverse Error Jerky shifting in low gears (automatic) Vibration in wheel at high speeds

Audi A4 in New Jersey, United States May 2009 - Dec 2011
Sep 2009 6000 mi	Steering wheel vibrates at highway speed, starts at 65-75mph and disappears or smoothens at 80mph and above. Update: I've talked to Audi about this problem and they have told me that they are redesigning a new power steering hose, available Jan 2010.
Feb 2010 15300 mi	Control arms were replaced per TSB of high speed steering wheel shimmy, also, Power steering hose replaced per TSB of low speed steering wheel shimmy.
Nov 2010 25300 mi US $170	Parking brake malfunction light on. Replaced parking brake module by dealer, part of original warranty.

Audi A4 in Louisiana, United States Oct 2008 - Aug 2013
Nov 2009 15700 mi	Panel on dash by speedometer was coming off. New piece ordered. Defects in paint. Will address when car next in the shop to replace part ordered. Replaced dash trim previously ordered.

Audi A4 in Wisconsin, United States Sep 2010 - Jan 2015
Jun 2011 22000 mi	Driver's door window control for driver's door window would not work for the full roll down feature and became very hard to press. Switch replacement fixed it.

Audi A4 in Wisconsin, United States Feb 2009 - Apr 2009
Apr 2009	Trim over nav screen warped/ misaligned. It looked ridiculous. They jammed some black felt tape above the trim which was totally visible when seated. I don't know how the factory didn't catch a badly warped trim piece. 4" area on front fender where foreign material was under the clear coat. They would have repainted but it should not have been delivered that way. Terrible wheel shudder between 55-65 MPH. Steering wheel literally shook in your hands. Tried to balance tires and did nothing. Consulting with Audi on issue.

Audi A4 in Massachusetts, United States Jul 2010 - Jun 2011
Aug 2010 26000 mi	replaced with new power steering hoses to eliminate low speed shudder on steering wheel

Audi A4 in Alberta, Canada Jun 2011 - Oct 2014
Oct 2014 97340 mi C $4000	Fuel injectors plugged. 7 hours of Audi labour + parts = CDN$3300!

Audi A4 in British Columbia, Canada Jul 2010 - Sep 2010
Aug 2010 20460 mi	Complete failure of battery, transmission shifting issues, navigation systems freezing. None were solved. In fact, a software update was performed that caused some significant cold engine idle issues when first started.
Sep 2010 20460 mi	Car sold partly because battery kept totally discharging after three days.

Audi A4 in Maryland, United States Jun 2011 - Oct 2021
Jun 2012 37000 mi	Sunroof made loud booming noise between 30-50 mph. Dealer replaced sunroof deflector under warranty and fixed problem.
Dec 2012 47000 mi	passenger seat power adjustment was not working. Dealer replaced power seat motor under warranty.
Jun 2013 54000 mi US $600	Leaky transmission oil pan gasket (?) - mechanic said transmission oil was leaking.
Oct 2015 90700 mi	Leaking oil after an oil change; oil drain plug is stripped and slight crack on oil pan. Mechanic replaced oil drain plug and sealed the oil pan.
May 2017 121000 mi US $400	Replaced rear brakes and rotors
Oct 2017 125000 mi US $900	Airbag light on dash came on and cruise control stopped working. Repair shop said that the airbag control module was not working and needed to be replaced. Airbag control module was replaced and system was reset; everything working well now.
Mar 2018 133000 mi US $1400	front end suspension "creaked" when going over bumps in the road. Mechanic recommended suspension work and replaced upper and lower control arms on both left and right sides.
Jul 2018 139000 mi US $250	replace right LED light; headlight failed indicator kept going off

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Audi A4 in Texas, United States Jun 2015 - Jul 2016
Jul 2016 101000 mi US $3700	Car had.a rough idle and had to replace head gasket.

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Audi A4 in California, United States Dec 2011 - Jun 2017
Mar 2017 71000 mi US $1100	Convertible top under plastic panel cable broke. Had to replace entire system.

Audi A4 in Florida, United States Mar 2011 - Nov 2017
Nov 2013 26100 mi US $252	Convertible top motor replaced

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Audi A4 in Pennsylvania, United States Nov 2009 - Dec 2017
Dec 2010 30000 mi	Check engine light came on. Dealer updated software and reset engine light. Light came on again.
Mar 2011 36000 mi	Check engine light came on. Cleaned fuel injectors and reset indicator.
Jul 2011 48000 mi US $650	1. problem with tires after 16,000 miles - loud noise and vibration. Car had new tires and aligment in January. Original dealer would not help. 2. NAV DVD would not eject - Original dealer would not help. Had to take car to new dealer
Jul 2012 78000 mi	Convertible - Rear window separating from fabric. Open to rain. Not covered by warranty. Estimate up to $5,000 to replace roof. Audi replaced roof under warranty.
Aug 2012 78200 mi US $745	Cruise control stopped working. Replaced cruise switch.
Sep 2012 79000 mi	Cruise control stopped working 1 week after switch was replaced. Called dealer and they will charge for second repair even though they repaired 1 week prior for $500. Decided not to fix at this time did not want to spend more $
Jan 2013 64200 mi US $1300	Installed switch and control unit for cruise control Replaced pump and motor for convertible top. Top would not go up.
Nov 2013 89000 mi US $209	Windshield washer pump replaced Windshield washer pump replaced
May 2014 94500 mi US $874	Replace "soft boot" in trunk for convertible top. Cable broke and gear stripped, convertible would not go down. Replace "soft boot" in trunk for convertible top. Cable broke and gear stripped, convertible would not go down.
Sep 2014 99000 mi US $800	New rotors, pads and calipers
Oct 2016 129300 mi US $3100	motor mounts - replaced Insulation/coating for wires to headlights "rotting". had to replace front headlight harnesses Rear View Windshield mirror, mount broke
Jan 2017 131000 mi US $2109	Rear shocks, struts, front bearings Valve cover gaskets
Jun 2017 136000 mi US $100	Replaced Broken latch on glovebox

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Audi A4 in Great Britain Nov 2008 - Jun 2011
Jan 2009 2000 mi	Advance key option allows the car to be locked and unlocked keylessly by sensors in the door handles. A sensor in one handle showed up as faulty, causing an intermittent problem whereby the sensors do not work correctly. Ordered part. Part installed, but problem quickly returned. Made another appointment to repeat diagnosis.
Feb 2009 2000 mi	Overall, 2 faulty door sensors causing problems with the advanced keyless entry system which were diagnosed on two separate visits. Now everything seems to be working correctly.
Jun 2009 5000 mi	Rattle/squeak from somewhere around the drivers console near the off side. Certain songs cause a rattle/vibration from the near side front door that is not heard on off side door - Maybe speaker or just bad fitting? Don't want to hear vibration from one door when paying extra for B&O sound system!
Jul 2009 6000 mi	After first visit, (rattle) problem still existed so took back. Problem still exists hence unsuccessful so will be making another visit shortly.
Jan 2010	Car reporting low battery after only 1 year and even though car is used regularly. Garage said no problems with battery or alternator, told they had fully charged the battery. Two days after previous visit after being told battery had been fully charged and no problem could be found, car reporting low battery again. Took back to dealer who updated software and also ordered a replacement battery monitor/sensor. Battery monitor/sensor arrived and replaced. Advanced keyless entry system not working for the 3rd time (2 original door sensors had already been replaced). 1 of the remaining two original sensor was now faulty, sensor replaced.

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Audi A4 in South Africa Apr 2009 - Sep 2011
Apr 2010 14880 mi	Collapsed engine mountings. New engine mountings fitted. Drive chain noisy, also replaced under warranty.
Jul 2010 16740 mi	Camshaft chain and additionals related to camshaft chain. Car sat for three weeks waiting for parts from Germany.
Apr 2011 27280 mi	Gasket and valve tsb. New turbo ordered to be fitted, whistling.
Aug 2011 31000 mi	Car using excessive oil (500ml/1000kms). Previous TSB hasnt resolved issue. Seem a new TSB is out so car has to be rebooked for work to be done.

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Audi A4 in Ontario, Canada Jul 2011 - Sep 2011
Aug 2011 37200 mi	Engine check light was on, and the engine was consuming about 1 liter per 1500 km, a turbo valve was replaced
Sep 2011 37200 mi C $59500	Engine check light was on, turbo system was faulty, part was not in inventory, so part had to be ordered. turbo was replaced in 5 days.

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Audi S4 in British Columbia, Canada Mar 2011 - Dec 2014
Aug 2011 20460 mi	noise from power steering at low speeds during a tight turn i.e. parking
Sep 2013 35960 mi C $100	leak in valve cover gasket replace tie-rods

Audi S4 in Colorado, United States Feb 2009 - Dec 2024
Feb 2020 99500 mi	Door blades rusted, were replaced under warranty.

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Audi S4 in California, United States Mar 2016 - Jul 2017
Nov 2016 81000 mi US $300	Coolant bottle replacement (cracked/slow leak)

Audi S4 in Washington, United States Jan 2012 - Mar 2015
Feb 2012 51000 mi	side mirror auto adjustment going haywire. manual adjust worked fine. simply replaced elec control module in door. covered under warranty. zero other issues in 50,000 miles!

Audi S4 in Virginia, United States Jan 2015 - Jun 2022
Mar 2018 88400 mi US $2010	Driver's side seat bottom seat heater failed, needed to be replaced. Cruise control would not operate. Clutch vent valve switch needed to be replaced. Passenger side mirror motor became intermittent, and was replaced. Rear brake pads and rotors worn, were replaced.

Audi S4 in Maryland, United States Mar 2017 - Mar 2018
Jul 2017 48000 mi	Air bag

Audi S4 in California, United States Nov 2010 - Feb 2014
Dec 2010 30000 mi	Door to glovebox broke off
Jun 2013 55000 mi US $1100	Needed replacement of rear timing chain housing

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Audi S4 in Florida, United States Mar 2011 - Apr 2016
Aug 2011 21000 mi	Replaced brake light
Jan 2012 35000 mi	lighter inoperative panel behind drivers seat became loose and dislodged
Feb 2012 35800 mi	Carbon fiber rear spoiler began peeling. This item was replaced under warranty.
Sep 2012 42000 mi	ignition coil replacement Hinge on center console broken. Lid required replacement. Not covered under warranty. Replace ignition coil on cylinder 1. Covered under warranty
Mar 2013 48000 mi US $500	Replace serpentine belt
Apr 2014 60500 mi	Replace control arm bushings
Jul 2014 63000 mi US $85	Remove and replace power steering line. Refill with fluid.
Dec 2015 79000 mi US $2400	oil stand gasket. oil filter housing gasket, intake manifold gasket. R&R Cooling system; expansion tank; radiator hose expansion tank hose. R&R Valve cover gasket, left and right

Audi S4 in Alabama, United States Dec 2016 - Dec 2017
Jan 2016 110000 mi US $530	Power steering hose broke Passenger side axle front.

Audi S4 in Ontario, Canada Apr 2018 - Mar 2019
Jun 2018 73160 mi	Engine mount has some kind of sensor that gave a code, so they replaced the engine mount at the used car dealer where I bought the car.

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Audi S4 in California, United States Oct 2010 - Sep 2011
Aug 2011 19000 mi US $300	Ashtray trim piece completely fell off. Had to purchase two parts to repair totaling slightly over $300.

Audi S4 in Estonia Aug 2009 - Jul 2012
Jul 2012 32860 mi €50	Cruise control stopped working - the clutch pedal sensor was replaced.

Audi S4 in Alberta, Canada Jan 2018 - Feb 2022
Feb 2018 72540 mi C $8000	cam shaft seizure on drivers side(Canadian) driving at about 120km's on highway ,felt like front tire blew out.every light on dash lit up,originally thought timing chain problem.purchased and installed new head(rebuilt)new tensioners and guides,chains,clutch few other items.
Jun 2020 78740 mi C $6000	had to replace timing chain ,tensioners,cam phasers.Just replaced all this little over a year ago.Garbage parts,very bad engineering and an absolute waste of money.I will never purchase an Audi product !! Buy a Lexus,I'm dead serious,Research and development surpasses every other manufacturer. The Audi A4 is the number 1 Towed vehicle on the planet.

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Audi S4 in Texas, United States Aug 2013 - Oct 2016
Nov 2013 70700 mi US $2500	Replace control arms and bushings, upgraded the springs and shocks.
Apr 2014 75000 mi US $1000	Replaced CV boot and 75,000 mile service
Mar 2015 87000 mi	Took in for power steering leak. Dealer couldn't find, but "found" multiple oil leaks. Power steering leak. Hose replaced. After bringing car home from dealer, check engine light came on. Fixed at no charge. Don't know if caused by previous work. Overall, I had to take the car back and forth to the dealership 4 times in 10 days.
Aug 2015 92000 mi US $1028	Had to replace two O2 sensors
Mar 2016 100000 mi US $250	Convertible top latching motor failed. Headlight idiot light came on, but main headlights were still working. One of the bulbs in the driving lights needed to be replaced.
Apr 2016 100300 mi US $250	I smelled gas when I parked in my garage after refilling the gas tank. The sender unit had a crack that allowed gas to leak from the tank
Sep 2016 104000 mi US $1600	Power steering pump died. Had to replace both the pump and the driveshaft for the pump

Audi S4 in Colorado, United States Dec 2010 - Jun 2015
Jun 2011 24000 mi	top got stuck part way closed, replaced limit switch.
Oct 2011 25000 mi	third brake light went out, dealer replaced whole part third brake light went out=== dealer replaced whole part
Aug 2013 34600 mi	top came unglued. audi says the only fix is to replace the top. the problem is along a seam. we are going to leave it for now.
Jun 2014 36000 mi US $25	convertable top back window came unglued

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Audi RS4 in Texas, United States Mar 2013 - Jul 2022
Oct 2013 49500 mi US $85	Propeller shaft replaced.
Nov 2014 70000 mi US $5000	Serpentine belt tensioner rubbed an hole in the oil cooler I think because of faulty installation when the car was at another dealer for earlier work. Audi of America and the other dealership disagree... Tensioner, belt, and cooler replaced.
Jan 2015 59000 mi US $1150	Check engine light came on. Diagnosed as leaky vacuum line and repaired. 75k service also performed, as well as replacement of underbelly tray.
Feb 2015 78000 mi US $85	Incorrect fluid used in power steering system (by previous dealer), causing failure of PS pump bearing. Noise is still there, but is much quieter. Upper control arms and right spindle replaced. Car was returned with loud cracking noise from right side. Needed 2 additional trips to dealer to successfully fix.
Sep 2015 85000 mi US $2500	throttle body failed. replaced with remanufactured unit. oem part, but not audi-branded. struts were leaking. dealership only repair. apparently it's a special part. went with aftermarket coilovers, due to cost. performance seems similar to DRC system.
Apr 2016 93200 mi US $2000	Carbon deposits cleaned from intake system. Sway bar end links replaced.
Sep 2016 97000 mi US $350	Replaced left front inner and outer CV boots. Old CV boots were torn and leaking fluid. 95k mile service and oil change. 1 hour to look for vacuum leak (source of check engine light). Could not find its source.
Dec 2016 105000 mi US $700	faulty intake manifold flap solenoid replaced.
Dec 2017 115000 mi US $1000	Oil pan was leaking from drain plug. After oil change, new drain plug with larger crush washer didn't fix leak anymore, so lower oil pan was replaced.
Feb 2018 116000 mi US $200	oil leak was fixed with new oil pan. spent a few extra days in the shop due to incorrect sealing.
Jun 2018 120000 mi US $450	oil change, alignment, a few warning lights that didn't amount to anything. fixing a bad alignment another shop did.
Aug 2021 15000 mi US $1100	replaced A/C compressor.
Sep 2021 150000 mi US $300	pressure switch needed to be replaced. faulty replacement parts prolonged stay in shop.

Audi RS4 in Texas, United States Jan 2011 - Feb 2017
Aug 2011 31000 mi	car shut down while being driven. would not start and had to be towed to dealer. found faulty fuel pump regulator.
Feb 2013 32900 mi US $85	Slow to start and smelled fuel at start up. Replaced fuel pump and fuel filter.
Mar 2015 38000 mi US $1500	Needed a carbon clean. Normal maintenance for this engine.

Audi RS4 in California, United States Jun 2011 - Jun 2016
Jul 2011 56000 mi US $100	Engine Replaced Due to Cylinder Wall Scoring
Sep 2015 115000 mi	Front CV Joints Leaked After Long Roadtrip

Audi RS4 in California, United States Mar 2014 - Jun 2022
Oct 2016 37200 mi US $1200	Performed valve cleaning due to carbon buildup via direct injection system flaw.
Apr 2018 48000 mi US $175	Changed transmission fluid as shifter was becoming slightly balky. Noted several ball joints in front suspension starting to exhibit a slight amount of play. Will replace soon.

Audi RS4 in Tennessee, United States Oct 2015 - Mar 2018
May 2017 64718 mi US $250	Replaced entire front right headlight. The wiring frayed and it created a short. It was not possible to repair the wiring harness, so a new headlight was needed.

Audi RS4 in Colorado, United States Nov 2007 - Mar 2010
Feb 2008 4000 mi	The TPMS didn't seem to be functioning properly, but the dealer checks found that it was.
Jun 2009 12000 mi	The DRCs were leaking. Shop says Audi of America will not replace unless there is a clunking sound or fluid is dripping on the floor

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Audi RS4 in Georgia, United States May 2014 - Aug 2015
Aug 2015 79000 mi	The convertible top when used was draining the battery, due to a failing pump.

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Audi A4 in Colorado, United States Jun 2009 - Dec 2015
Aug 2009 15000 mi	Whistling noise at high RPM. No fault codes, will monitor and bring back if worsens.
Dec 2010 28000 mi	Leaking oil on valve cover. PCV Valve replaced with new revision.
Jan 2011 67700 mi	Rear washer fluid hose had cracked in hinge area of hatch, leaking into interior of car and headliner. Broken hose was repaired and problem is fixed. No internal damage was done.
Feb 2015 77300 mi US $50	Replaced faulty coolant thermostat.

Audi A4 in New York, United States Feb 2011 - Mar 2016
Jul 2012 49000 mi	Car had CEL for cylinder misfire. Seemed like bad coil pack but they had trouble getting the problem to occur again.
Apr 2014 74800 mi	new valve cover gasket

Audi A4 in California, United States Oct 2011 - Jul 2013
Sep 2011 38000 mi	Airbag warning light was on; dealer replaced broken rear seat belt under warranty.
Feb 2012 43800 mi	Hissing noise under acceleration, possible small loss in power.
Mar 2013 55000 mi US $85	Broken engine mount
Jul 2013 58000 mi	Dealer never figured out cause of hissing noise under acceleration.

Audi A4 in Alberta, Canada Aug 2011 - Aug 2012
Jun 2012 33480 mi	rear seat release parts (to flop wagon seats forward) were broken and replaced under warranty.

Audi A4 in California, United States Feb 2011 - Dec 2015
Jun 2012 39000 mi US $85	Recirculate flap motor stopped working so that recirculate would not work. Had this replaced at the dealership under the CPO warranty with an $85 copay.
Mar 2014 62000 mi US $40	Gas cap open error and check engine light. It was the N80 valve that needed replacing. I saw that it was an easy fix, bought the parts from the dealer for $40, and fixed it myself in about 30 minutes.
Jan 2015 49800 mi US $340	Thermostat stopped working and engine would not get up to temperature. This triggered the check engine light to go on. The fix includes a new thermostat and and coolant flush with new coolant added.
Dec 2015 80000 mi US $531	Oil filter housing leaking where it connected to engine block. Housing removed and gasket replaced.

Audi A4 in Pennsylvania, United States Nov 2013 - Aug 2017
May 2014 121000 mi US $620	Thermostat failed. Replaced thermostat and Coolant Temp Sensor
Sep 2014 126000 mi US $175	Replaced Coil Packs and Spark Plugs

Audi A4 in Ontario, Canada Jan 2013 - Jun 2022
May 2014 61160 mi C $50	oil consumption
Sep 2014 63240 mi C $1000	headlight
Nov 2014 64640 mi C $30	down one litre of oil - AGAIN
Jun 2015 71300 mi C $10	low oil
Nov 2016 82640 mi C $50	failed headlight
Jul 2017 89900 mi C $10	litre of oil -again!
Nov 2017 93000 mi C $600	multiple leaks in exhaust, replaced whole catback system thermostat failure
Dec 2017 94240 mi C $200	spark plug coil
Jun 2018 102300 mi C $1000	leaking seal
Jan 2022 117800 mi C $200	burned out headlight

Audi A4 in Georgia, United States Apr 2010 - Mar 2012
Jan 2011 US $90	Intermittent failure of driver's side turn indicator bulb. If hit fender with hand, bulb would work. Dealer said bulb failure not a bad connection. I disputed this, we agreed to split cost. Must remove front fender assembly to gain access to the bulb.
Jul 2011 39000 mi US $5	Replaced failed driver side rear turn signal light bulb

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Audi A4 in Colorado, United States Mar 2011 - Apr 2014
Apr 2014 79000 mi	Would have needed a carbon cleaning in the near future. CEL on cold start, number of miles. It ran fine, but not for too much longer!

Audi A4 in British Columbia, Canada Nov 2007 - Jun 2022
Mar 2010 24800 mi	Clutch switch failure meant engine revs increased when changing gear-manual trans; fault showed as error code from VCDS in ECU module; switch replaced under factory warranty; Dealer also performed scheduled 40000km service during this visit
May 2011 33220 mi	Airbag light on - problem with middle rear seat belt buckle Airbag light on; middle rear seat bel buckle replaced
Jun 2017 84320 mi C $99	Replaced 2 coilpacks
Aug 2017 86800 mi C $2819	Noisy wheel bearings - replaced all 4 bearings
Dec 2017 89280 mi C $160	Oil Change and Air filter / Cabin Filter
Jan 2018 89900 mi C $659	Adaptive Xenon Headlight front levelling sensor
Sep 2021 120280 mi C $4000	PCV replacement, intake manifold walnut shell carbon cleaning, turbo replacement

Audi A4 in Colorado, United States Mar 2011 - Mar 2013
Jan 2012	Check engine computer light came on, dealer found fuel pressure sensor and exhaust gas sensor bad, fixed under extended waranty Key stem snapped off from key fob render key useless. Ordered new key from manufacturer at dealer and dealer reprogrammed all other keys and new key when part came in.
Mar 2012 76000 mi US $1680	High pressure fuel pump drive cam came apart and destroyed fuel pump and camshaft.
Apr 2012 76000 mi	Check engine warning light on, seems to be misfiring, shop can't determine for sure problem, may need software update that they can't do, may need new #4 injector, or could be dirty valves. Will run valve cleaner through then have s/w check
May 2012 77000 mi US $500	#4 injector was replaced for same problem noted in Apr 12. This corrected the problem.

Audi A4 in New York, United States Jul 2011 - Jun 2012
Oct 2011 38000 mi

Audi A4 in California, United States Jun 2009 - Mar 2020
Dec 2010 20000 mi US $40	Broken glove box hinge causing rattles. glove box door and damper were replaced.

Audi A4 in Washington, United States Nov 2013 - Jan 2022
Feb 2013 55000 mi US $950	Intake Camshaft was damaged due to HPFP and Cam Follower failure. Replaced cam and HPFP with new OEM. Did a full timing belt service "while I was in there" but it wasn't strictly necessary.
Jun 2017 85719 mi US $50	AC was struggling to stay cold in the summer heat, quickly recharged to normal level with a store bought recharge can.
Jul 2017 86800 mi US $70	Cam adjuster housing was leaking oil and the adjuster sealing rings were exhibiting signs of wear. Replaced the rings in hopes it would solve a low speed judder under acceleration.
Feb 2021 106000 mi US $60	Cam position sensor replaced due to non-start and CEL.

Audi A4 in Connecticut, United States Mar 2008 - Jan 2012
Dec 2010 31000 mi	AC blowing extreme hot air even when set below 70 degrees. some part in center of dash had to be replaced that regulates the temp.
May 2011 36800 mi	Faulty control valve caused "check engine" light to come on. Could feel engine running rough and RPM fluctuate at idle above normal steady 750 RPM to a range of 1,250 - 1,750 RPM.

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Audi A4 in Ontario, Canada Sep 2008 - Jun 2017
May 2010 16740 mi C $400	burned xenon headlight
Oct 2015 60340 mi C $1500	Engine pump needed replacement
Dec 2015 61380 mi C $1800	cam shaft and chain tensioner replaced

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Audi A4 in California, United States Dec 2015 - Jul 2016
Jul 2016 103000 mi US $125	Thermostat failed open. Replaced thermostat and coolant

Audi A4 in California, United States Sep 2015 - Mar 2016
Sep 2015 53000 mi US $1900	Engine Mounts, 55,000 mi service, rotors & brakes

Audi A4 in California, United States Aug 2011 - Dec 2015
Oct 2012 59300 mi US $150	Valve cover needed to be replaced
Jul 2014 85800 mi US $222	Replaced battery
Nov 2014 90000 mi US $400	Baffle motor broken and stuck
Jun 2015 100000 mi US $650	Thermostat replacement
Oct 2015 104500 mi US $1305	Replace auxiliary fan assemblies (right and left) as well as fan control unit
Nov 2015 107000 mi US $485	Check engine light--fuel metering system running too lean ar idle--replaced crankcase vent valve assembly
Dec 2015 107000 mi US $650	Air bag light again came on, had to replace airbag clockspring

Audi A4 in California, United States Aug 2010 - Sep 2017
Jan 2012 82500 mi	Glove Compartment door latch broke fixed when new part installed, covered under warranty
Jul 2013 65500 mi US $85	Motor Mount Replaced driver/front

Audi A4 in Florida, United States Aug 2009 - Jun 2011
Feb 2009 20000 mi	motor that raises driver seat up and down broke. three days in shop as service claimed two separate motors needed to be replaced to remedy, which needed to be ordered.
Dec 2009 29000 mi	car stalled 10 times backing out of parking spot. nearly was towed, started eventually after calling tow truck. Audi wasnt certain of cause, sensors replaced, fingers crossed.

Audi A4 in Texas, United States Nov 2013 - Oct 2017
Dec 2013 71000 mi US $1200	CEL came on at 71000 miles. Turbo recirculation valve failed and was replaced. Also had to replace the front 2 engine mounts.
Mar 2015 87000 mi US $200	engine valve cover gasket was replaced.
Sep 2015 93000 mi US $140	Failing coil pack causing timing issues. Replaced all 4 coil packs and spark plugs myself.

Audi A4 in California, United States May 2011 - Jun 2011
Jun 2011 18000 mi	Higher than normal oil consumption at 1 quart per 1,000 miles. Gas mileage also below expected. Replaced 'flapper' valve. No, oil consumption and gasoline mpg up 20 - 25%

Audi A4 in Texas, United States Feb 2010 - Sep 2013
Aug 2010 1300 mi	The car frequently displays the message that the "Centre Rear Light" is out in the instrument cluster. The dealer claims that they have not been able to replicate the problem.
Nov 2010 2000 mi	Audi MMI screen is beginning to fail - has a vertical line at the top where the pixels are starting to go bad. Dealer said it was not bad enough yet to warrant replacement per Audi factory rep, which I disagreed with. Rear parcel shelf had faded, plastic began to peel. Not covered under the 4/50 factory warranty.
Jun 2011 3000 mi US $125	Driver's rear seat back panel needed reattached - had to be glued back on Driver's door squeaked when opening - door was lubricated under warranty
Jun 2013 6000 mi US $200	Wheel alignment issues - car pulled in one direction

Audi A4 in Arizona, United States Apr 2008 - Jun 2011
Jul 2008 2000 mi	A clip for the driver's side sun visor broke, and was replaced under warranty. TPMS system is unreliable in very hot Arizona weather, and even if the tires are properly inflated, We often get a TPMS warning on the dash during the summer. Dealer says "that's just how it is."

Audi A4 in Texas, United States Feb 2010 - Apr 2011
Apr 2010 27000 mi	Diaphragm in crank case valve was sticking.
Jan 2011	Glove box lid broke.
Mar 2011 48000 mi	Car sluggish, loss of power, and RPMs dropping dramatically at stop lights. Fuel pump replaced. Power steering was stiff. Found pump to be inop. Pump replaced. Drivers side window control inop. Replaced.

Audi A4 in California, United States Aug 2010 - Jun 2017
Mar 2011 41000 mi	Xenon headlamp went out...have to dismantle the headlamp to replace warranty on the zenon lights was extended to include.
Dec 2011 45000 mi	Oil leak The oil light came on again and car was 1 qt low since 1 mo. ago. No sign of another leak. Filled and monitoring consumption will be next step.
May 2012 47100 mi	Rusnak Audi performed the second half of an oil consumption test and found that the car was consuming more oil than it should and they repaired seals in the engine which fixed the problem. They gave us a loaner car and repairs were free
Apr 2015 75800 mi US $1400	Cooling system, the water pump needed to be replaced along with the timing belt and the thermostat
Dec 2015 86000 mi US $50	Had to get new gas cap cuz of breach in vacuum system light came on to tighten cap but original cap kept failing so replaced
Jun 2017 111000 mi	Takata Airbag passenger side replaced on recall

Audi A4 in California, United States Jan 2012 - May 2016
Jul 2015 78000 mi US $700	Cooling system; replace aux fan and thermostat
Feb 2016 86000 mi US $1500	Replace climate control stepper motor Replace oil pump

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Audi A4 in New Jersey, United States Nov 2010 - Sep 2014
Dec 2010 43000 mi	The Sunroof motor rattles by the stereo and going over bumps (still rattles after they said they fixed it)
May 2012 61000 mi	The HID headlights were randomly flashing when the car was off and parked. The electronic control module was replaced.
Jun 2012 63000 mi	Steering was making a noise when turning left. Steering pump was replaced.
Aug 2012 66000 mi	One of the two horns stopped working, it was replaced.

Audi A4 in Utah, United States Apr 2011 - Apr 2022
Feb 2016 80000 mi US $600	thermostat replaced
May 2018 85000 mi US $1000	wheel bearing was damaged. Unknown cause

Audi A4 in Oklahoma, United States Jan 2010 - Mar 2012
Oct 2011 38000 mi	The valve cover gasket was leaking, so dealer took it apart and replaced with new gasket.

Audi A4 in North Carolina, United States Oct 2009 - Jun 2011
Nov 2009 29000 mi	Crankcase gasket had a leak and was replaced

Audi A4 in Wisconsin, United States Sep 2016 - Mar 2018
Feb 2018 42000 mi US $300	Thermostat replacement

Audi A4 in Idaho, United States Jan 2011 - Feb 2012
Mar 2011 27000 mi	I purchased the car used and squealing serpentine belt tensioner and belt included on the "we owe" list from the used car dealer. Rough idle. Audi dealer checked and replaced PCV valve. Spring clip missing on drivers side door sill to secure interior plastic transition piece that covers the edge of the carpet. Noticed valve cover gasket leaking. Valve cover gasket replaced while I waited.
Jan 2012 46000 mi	Loud engine noise when car cold and large oil consumption

Audi A4 in Washington, United States Dec 2011 - Jan 2017
Jan 2015 46000 mi US $700	Thermostat stuck open and not allowing engine to come up to temp at highway speeds. City driving was generally ok, but slow to warm up.
Mar 2015 47000 mi US $850	In-tank fuel pump failed. Car would start fine when cold but when running short city errands with several on/off cycles it would eventually fail to start.
Jan 2017 23000 mi US $1500	Fuel delivery system issue unresolved. Both fuel pumps replaced as well as fuel pressure sensor and problem still persisted. Dealer was moving on to replacing fuel pump control module but vehicle was totaled before it was installed.

Audi A4 in Washington, United States Jul 2008 - Jul 2018
Sep 2008 1000 mi	Air Bag light. Part ordered. Problem repaired, but minor interior damage was caused. Parts ordered to replace scratched glove box and scuffed headliner on airbag assembly.
Oct 2008 2000 mi	Air bag assembly replaced to rectify damage to headliner; front of glovebox replaced.
Dec 2008 2000 mi	Rattle in right rear.
Oct 2009 13000 mi	Worn seam on driver's side seat. Seat bottom replaced.
Oct 2013 64200 mi US $1200	front control arms an struts replaced
Oct 2015 78000 mi US $900	Timing belt and water pump replacement
Dec 2016 75000 mi US $800	Thermostat replaced
Jun 2017 89000 mi US $600	Lock cylinder assembly replacement.
Jul 2018 96000 mi	replace air bag per recall

Audi A4 in North Carolina, United States Aug 2016 - Jan 2017
Nov 2016 104300 mi US $500	The car was leaking coolant
Dec 2016 108000 mi US $300	Engine misfire, change coil 2,3

Audi A4 in Virginia, United States Jan 2009 - Jun 2011
Feb 2009 7400 mi	Check Engine Light, Faulty low fuel pressure sensor. Check engine light (CEL). Faulty low fuel pressure sensor. Replaced under warranty. Free rental.
Nov 2010 28000 mi US $200	PCV valve failure... Replaced with aftermarket pcv valve catch can.

Audi A4 in New York, United States Nov 2012 - Jun 2018
Feb 2013 41400 mi US $300	Tensioner squealing. They changed tensioner, rollers and timing belt.
Jul 2013 45300 mi US $100	Diverter valve bad
Mar 2016 73000 mi US $2000	new tie rods,left spindle, control arms coolant flange leak and various hoses replaced
May 2018 90000 mi US $2500	New front and rear suspension. New tires, wheel alignment. Oil pressure sensor replacement, oil change.

Audi A4 in Kentucky, United States Dec 2009 - Jun 2011
Feb 2010 22000 mi	Crank case breather hose needed to be replaced. Caused rough idle at start. This is a common problem with this model.

Audi A4 in Minnesota, United States Sep 2015 - Apr 2017
Oct 2016 75000 mi US $444	Thermostat failed.

Audi A4 in New York, United States Sep 2007 - May 2010
Dec 2007 2000 mi	trunk lid had swirly paint under the gelcoat ahad to repaint
Aug 2008 9000 mi	Vinyl trim surrounding center console has an area with very irregular, grossly grainy texture that sort of blends in with the grainy texture of the rest of the trim - it took a long while to focus on this defect and realize it was a a defect.
Oct 2008 12000 mi	Center console replaced to correct a defect in a section of the vinyl trim CEL came on; diagnosed as fuel low pressure sensor; part replaced; light has stayed out, car runs normally

Audi A4 in New Jersey, United States Jan 2009 - Oct 2010
Jul 2010 34000 mi	Replaced small valve from intake system; Audi service bulletin recently released

Audi A4 in Illinois, United States Jun 2011 - Apr 2016
Apr 2014 56000 mi US $2100	Suspension and control arm. Motor mount
Apr 2016 67000 mi US $1000	Two different mechanics unable to identify issue. Engine Light on, emission error detected but unable to fix.

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Audi A4 in Missouri, United States Aug 2014 - Nov 2018
Jan 2017 102700 mi	The car had to have a gasket replaced in the turbo unit and now keeps coming up with a check engine light. The gas cap has also been replaced.

Audi A4 in Arizona, United States Jan 2011 - Oct 2014
Feb 2011 36000 mi	Power folding passenger mirror does not always function. Dealer ordered parts to repair under warranty.
Mar 2011 38000 mi	Mirror motor replaced under warranty Told that caliper gaskets failed and were causing a groaning when performing low speed turns Passenger side air vent not enough air flow. Flap replaced under warranty.
May 2011 41000 mi	Malfunctioning PCV valve Clicking from front wheels, diagnosed and replaced bearings on both front wheels.
Apr 2014 99200 mi US $2000	AC Compressor Failure Failure of 4 Upper Control Arms
Oct 2014 112000 mi US $250	Coil Pack replacements

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Audi A4 in Georgia, United States Mar 2008 - Jul 2020
Mar 2009 15000 mi	My 6 speed manual transmission does not go into 2nd or 3rd gear smoothly, particularly when cold.
Apr 2009 16000 mi	Car doesn't always shift smoothly into second gear. This is a manual transmission A4. It seems to have a larger issue with this when the car is cold.
Sep 2010 28000 mi	Trim around trunk latch was damaged from regular use and was replaced under warranty.
Sep 2012 60000 mi US $200	Factory battery failed, was replaced at dealer
Dec 2012 63000 mi US $75	Engine is consuming oil. Dealer took reading of oil level and instructed us to drive car for 1000 miles and return to dealer. Based on consumption, dealer will repair.
Feb 2013 64400 mi US $75	Repair related to December visit for excess oil consumption. They are replacing piston rings. Repair appears to have been unsuccessful as car is still consuming oil. Car returned to shop today (April 23rd)for further diagnosis.
May 2013 67000 mi	Engine continues to burn oil even after piston ring replacement.
Jul 2013 68000 mi	Follow up to earlier reporting oil consumption issues. Dealer finally replaced long block with new long block.
Jun 2014 80000 mi US $900	Return oil hose from turbocharger was leaking badly Car was making squeaking noise while driving
Mar 2015 89000 mi	shop had disconnected a/c harness by accident.
Aug 2017 106000 mi US $2300	upper control arms bushings were cracked/worn out and were replaced. engine mounts replaced replaced shocks/struts at all 4 corners to improve performance.
Feb 2018 109000 mi US $2300	Replaced clutch, flywheel and slave cylinder
Apr 2018 111000 mi US $800	Took car back, replaced drive belt tensioner pulley which solved problem. Car was discharging battery. Replaced alternator, but did not solve problem entirely, as alternator light came back on.

Audi A4 in California, United States Jun 2008 - Jun 2013
Apr 2009 15000 mi US $250	window regulator. when i utilized the automatic window close, the window would close then come down a quarter of the way.
Aug 2010 25000 mi	water leak on passenger side.

Audi A4 in Virginia, United States Jan 2009 - Jan 2011
Dec 2010 40000 mi	Idle very irregular. Replaced PCV valve.

Audi A4 in North Carolina, United States Nov 2007 - Aug 2010
Apr 2009 25000 mi	Crankshaft ventilation valve clogged. Caused valve cover gasket to fail. Oil sprayed on inside of engine bay. Some cars similar to mine had a recall on this part, mine was not one of them.

Audi A4 in California, United States Aug 2008 - Mar 2010
Aug 2009 25000 mi US $2	Center console latch repaired. Driver seat backing repaired. Cigarette lighter repaired. 25,000 service.

Audi A4 in Ohio, United States Jun 2009 - Jun 2011
Jul 2009 25000 mi	iPod adaptor stopped working... replaced under warranty Fuel Pressure Sensor was replaced. Replacement did not help.
Jun 2010 41000 mi	Cam Shaft Follower Fuel Pressure Sensor was replaced. Replacement did not help
Jul 2010 41000 mi	Check engine light turned on after 4 hours of driving, 2 different times... car was driving normal. Audi said nothing was wrong and reset The fuel Door would not Latch. Replaced. The trim on the passenger seat became detached (the plastic casing). This is not covered by warranty and is not fixed

Audi A4 in Nevada, United States Mar 2008 - Jun 2011
Dec 2008 13000 mi	There was a rattling noise coming up between 2000 rpm and 2600 rpm, which was initially diagnosed as a defective diverter valve. After it has been replaced, the noise is still there. The car runs a little bit hesitantly.
Feb 2009 15000 mi	As I stated, the rattling noise is still there. The cars DOESN'T run hesitant anymore - some dead leaves made their way into the intake duct, in the pre-filtering area; nothing serious. I removed them and everything went back to normal.
Jan 2010 32000 mi	Noticed less than 1 quart oil missing - oil level was half way between min and max. No CEL ever showed up - which is a good thing. Dealer noticed some oil stains on engine cover. Dealer diagnosed and replaced the PCV valve, everything under warranty.

Audi A4 in Rhode Island, United States May 2009 - Nov 2010
Nov 2009 47000 mi	Replaced faulty O2 sensor.

Audi A4 in New York, United States Jun 2008 - Jun 2011
Dec 2009 24000 mi	burning a quart of oil every 2k miles. Bad PCV assembly. PCV & valve cover gasket replaced
Mar 2010 24000 mi	Continued to lose oil. Replaced valve cover gasket & assembly. Problem hasn't returned.

Audi A4 in Latvia Jul 2015 - Jul 2015
Jul 2015 132060 mi €400	Throttle body was damaged. Needed to change, and sensor to throttle body was broken also.

Audi A4 in Quebec, Canada Oct 2012 - Nov 2012
Nov 2012 32860 mi	On warranty, the dealer change seat belt passenger switch and front disk brakes wear sensors.

Audi A4 in Ontario, Canada Sep 2012 - Oct 2012
Oct 2012 27900 mi C $550	Front strut leak

Audi A4 in Texas, United States Jun 2015 - Sep 2015
Jan 2015 111000 mi US $70	Misfire came from faulty spark plug
Jun 2015 110000 mi US $150	Engine sputter during heavy acceleration.
Sep 2015 115000 mi US $300	Broken motor mount and snub mount replaced

Audi A4 in Quebec, Canada May 2016 - May 2016
May 2016	Ripped boot

Audi A4 in Minnesota, United States May 2009 - Sep 2011
Oct 2009 36000 mi	broken breather valve in engine. too much oxygen going into engine. would not idle very well

Audi A4 in Quebec, Canada Aug 2008 - Mar 2010
Mar 2008 4960 mi	fuel latch. not well repaired
May 2009 15500 mi	rear seat belt and fuel latch

Audi A4 in Minnesota, United States Oct 2011 - Jun 2022
Aug 2012 61000 mi	Clutch position sensor failure caused broken cruise control. Vent left of instrument cluster failed.
Sep 2012 61000 mi	Left a/c vent finally replaced by the dealer. It took them three weeks to get one.
Mar 2013 64000 mi US $180	Battery fell off a cliff. Not just performed poorly in the colder weather -- it just stopped holding a charge.
May 2013 65300 mi US $85	Valve cover gasket replaced.
Dec 2013 68000 mi US $250	Windshield wipers wouldn't rest at base of windshield. Wiper transmission had to be reset. Vapor lock from -15F temps. Warmed up in mechanics garage solved problem and now drive it on the highway.
Sep 2016 97000 mi US $250	Thermostat needed to be replaced.
Aug 2017 109000 mi US $700	Front, driver's side wheel bearing
Dec 2017 115000 mi US $800	Replaced high pressure fuel pump. There was difficulty starting the engine in a few instances.
Jul 2019 128404 mi US $350	Replaced oil separator, gasket, and breather hose.
Jun 2021 137420 mi US $1000	Replaced all four fuel injectors; carbon clean of intake; replaced one ignition coil; Replaced oil filter housing due to leak AC pressure switch/sensor, evacuation, and re-charge
Aug 2021 138460 mi US $800	Replaced starter
Nov 2021 140805 mi US $1000	Replaced vacuum pump Replaced accessory belt
Dec 2021 141710 mi US $6000	Replace high pressure fuel pump, fuel pressure thrust sensor, fuel pressure sensor, cam follower, vent hose, fuel pump relay, wire set, fuel pump and sender unit, fuel pump adapter, evaporative purge valve, low pressure fuel pump. Replaced front control arms, upper and lower
May 2022 144795 mi US $800	Replaced faulty turbo recirculation valve

Audi A4 in Ontario, Canada Nov 2011 - Jun 2014
Dec 2011 54560 mi	CEL was on, changed gas cap and reset CEL
May 2012 62000 mi	PCV Valve problems. Free replacement at dealer as a result of warranty extension on part.
Jul 2012 63120 mi	Oil cooler began leaking oil
Sep 2013 77500 mi C $150	The vehicles camshaft follower failed and led to the destruction of the fuel pump and the intake camshaft.

Audi A4 in Minnesota, United States Jun 2010 - Jan 2011
Aug 2010 35800 mi	Oil spewing from bottom of engine. Valve plugged causing pressure on gasket. Fixed, repaired, replaced, cleaned. Rear passenger seat not locking into place. Latch replaced.

Audi A4 in Virginia, United States Jan 2011 - Jun 2016
Feb 2013 58700 mi	Car was idling roughly and not powering consistently. They replaced spark plugs and coils.
Apr 2013 60500 mi	Cleaning valve heads finally seemed to work.
Aug 2014 78000 mi US $2300	$2200 for 4 tires, oil change, alignmt, 75k check, and fuel filter (check engine light). Still needs $2200 timing belt replacement. Light came back on immediately - fuel sensor/pump TSB? Now to dealership.
Jun 2015 86000 mi US $10	Taillight out for 2nd time in 2 years. Replaced myself in about 10 min. Dealership cost >$100?
Mar 2016 95000 mi US $6100	Cooling system repaired. Engine mounts fixed.

Audi A4 in Indiana, United States Nov 2010 - Nov 2015
Dec 2011 40000 mi	PCV valve failed and blew oil all over the engine cover. Was replaced under extended warranty.
Jun 2012 46000 mi US $85	Timing belt was making a screeching noise. It took 4 back to back trips to the dealer to get them to finally replace this under CPO Warranty.
Dec 2012 53000 mi	Car was burning oil at a rate of approx. 1qt/1000mi. Dealer was supposedly doing consumption test, but WAY overfilled the oil (2+ qts overfilled). Didn't end up fixing the problem. Will have to go to another dealer to resolve consumption.
Mar 2013 57000 mi US $80	Motor was drinking 1qt/1000 of oil. Dealer did oil consumption test and piston rings were going to be replaced. During the repair, scoring on cylinder wall #4 was discovered so the motor was replaced.
May 2014 67000 mi US $270	Tie rods frozen. Both front outer tie rods.

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Audi A4 in Hong Kong, China Nov 2013 - Nov 2013
Nov 2013 54560 mi $4000	TCS warning came up, mechanic checked and required replacement of ABS pump. Car automatically turned off when approaching a steep up-slope due to suspected gear problem. Airbag warning sensor on dashboard lighted together with Airbag Off button near ventilation. Unable to unlock and open left-back door from the outside.

Audi A4 in United Arab Emirates Jul 2009 - Dec 2013
Aug 2009 27280 mi	Right xenon bulb turns off after few seconds. First visit, the car stayed for a day to investigate problem. Part ordered and took about 3-4 days for delivery. Car at dealer for another day for right headlight replacement.
Dec 2009 32860 mi	Fuel pump. Car drivable but there was a huge loss in torque.
Mar 2010 37820 mi	Car was shaking in all conditions, the reason was broken mounts which were replaced. Engine mount replaced. Symptom: car shaking all the time on any gear, and made changing gear (automatic) feel a little lose.
Sep 2010 44640 mi	Broken front wheel bearings. It was a low, soft and fast knocking-like sound, which you could also feel. Took two weeks to identify and fix. I did suggest the bearings as a possibility but they had to reproduce the problem in the workshop.
Mar 2011 50840 mi	Left Xenon Headlight bulb suddenly turned off. Identified as broken only after removing front bumper, so car had to stay at the workshop. Bulb ordered from Dubai. Car remained at dealer's for a whole week.

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Audi A4 in Alberta, Canada Jan 2016 - Oct 2016
Mar 2016 88040 mi C $440	Rear door bumper guards (both sides) containing both metal and plastic parts rusted resulting in material separation. Brake switch has numerous outputs. Problem was with brake lights (and shifter interlock) which, not being applied, prevent shifter from moving out of PARK. Cost included towing to dealership.

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Audi A4 in Virginia, United States Sep 2016 - Jun 2022
Dec 2017 95600 mi US $34	Replaced front brake pads
Feb 2018 96000 mi	The hood-ajar switch was not closing all the way, even with the hood closed tight. Removed the switch from its mount and taped the switch closed. Problem solved. I'll probably replace/repair (bend the tab) the switch once the weather gets nicer and tax season is over.
Dec 2018 101000 mi US $908	Had a slight coolant leak, and it turned out to be front coolant flange. Also replaced the VVT solenoid seals, but that was fairly minor expense.
Dec 2021 116000 mi US $254	Had a headlight out. After researching it, found that I had the expensive xenon HID headlight package, and that the bulbs were not replaceable from the engine compartment; the bumper cover had to come off. Good times.

Audi A4 in Minnesota, United States Jul 2010 - Aug 2011
Nov 2010 27000 mi	Water pump failure, recalled part. Towed and repaired within 3 hrs in the middle of a snowstorm.
Dec 2010 28000 mi	Coolant was low, warning light alert. Audi checked the system under pressure to insure no leaks, all was OK, added coolant and good to go.

Audi A4 in California, United States - Jul 2009
Jun 2009 10049 mi	Air conditioning not cold. System evacuated and freon recharded.
Jul 2009 12901 mi	Check Engline Light on. Error reset and fuel additive added.

Audi A4 in Texas, United States Nov 2007 - Dec 2010
Jan 2008 1000 mi	Squeak in rear left door.
Nov 2008 15000 mi	Check engine light on and engine started rough when cold. Engine light came on. Engine started rough with a cold start.
Mar 2009 18000 mi	Rough start with engine misfiring.
Jul 2009 26000 mi	Cold start is rough. One of the cylinders is misfiring.
May 2010 36600 mi	Some cylinders continue to misfire, particularly on cold start.
Sep 2010 43000 mi	Air in brake lines. Fluid drained and replaced. Problem remained. Brake booster and master cylinder were replaced.
Nov 2010 44000 mi	Engine continues to randomly misfire on cold start. Since I was going to turn in the car--it's a lease--they just reset the engine warning light so that it would go off.
Dec 2010 44000 mi	Engine still randomly misfiring when turned in.

Audi A4 in Ontario, Canada Dec 2013 - Jun 2015
Dec 2013 83700 mi C $400	Hard starting and cel on
Feb 2014 84400 mi C $2300	engine severely misfiring, multiple fault codes, engine ran in limp mode. primary cause a failed, likely stretched, timing chain, one of the ones at the top of the engine, for one of the cylinder heads valve train. fixed most of misfire. secondary cause of misfire was severe carbon buildup in cylinder heads. cleaning the carbon build up fixed the last of the misfire codes, and the recommendation was to use the BG 44K every 6 months to keep it under control.
Dec 2014 96100 mi C $600	Brake switch failure
Feb 2015 97340 mi C $650	Replacement of leaking hydraulic motor mount
May 2015 97960 mi C $875	Failure of oil system leading to 1/2 engine shutdown. Was not repaired. Replaced vehicle.

Audi A4 in Massachusetts, United States Mar 2011 - Feb 2014
Apr 2011 13000 mi	Water pump replaced.

Audi A4 in New Jersey, United States Mar 2010 - Jun 2022
Apr 2011 29200 mi	Motor for drivers side window needed to be replaced.
Nov 2013 45300 mi US $235	Window rail squeaking. This car has had the window regulator replaced 3 times now for this problem. Each time the problem goes away for a week or a day, then returns. Can't get a top mechanic at dealer - they service only the high end cars
Dec 2015 55000 mi	Vacuum line was broken. Replaced it.
Dec 2017 63000 mi US $1050	Oxygen and MAP sensors replaced. Throttle body cleaned. Air filter replaced
Jan 2022 80000 mi US $925	The exhaust downpipe has rusted through after 14 years. The Midas technician welded new pieces into the existing system at an exorbitant rate.

Audi A4 in Ohio, United States Sep 2011 - Jul 2012
Jun 2012 27000 mi US $300	Carbon buildup was causing the engine to misfire in a couple of cylinders. A chemical clean out was needed.

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Audi A4 in Ontario, Canada Jun 2009 - Aug 2009
Aug 2009 13640 mi	Defect in iPod interface.

Audi A4 in Pennsylvania, United States Jul 2009 - Jan 2022
Jan 2010	Saturday morning I noticed a small leak. Later the car lost all coolant. Tuesday it was towed to the dealer and fixed on the same day. I had a loaner. Everything: tow/loaner/repairs were covered under warranty.
Aug 2010 30500 mi	Check engine light came on. Light went off after two days. Dealer checked computer and found a sensor malfunction
Apr 2017 104000 mi US $350	Pads were worn and rotors were wearing.
Mar 2021 120000 mi US $250	Windshield washer reservoir leak. The part was replaced.

Audi A4 in Quebec, Canada May 2008 - Jan 2018
Feb 2009 13020 mi	Water pump broke
Jun 2009 16120 mi	Steering noise when turning. Missing steering fluid. Dealer added fluid, noise stopped. Will follow up if there is a leak.
Oct 2014 86800 mi	Valve gasket
Nov 2014 88000 mi C $300	Bearing
Dec 2014 89900 mi C $300	Vacuum tube
Mar 2016 106640 mi C $1200	Manu oil leaks. Changed the clutch in dame time.
Jan 2018 127100 mi C $3500	Timing chaîn broke....,,,,

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Audi A4 in Indiana, United States Sep 2016 - Jun 2018
Apr 2017 78000 mi US $98	Back glass was coming loose from fabric of convertible top. Took to convertible top repair shop and was told there was no way to fix (repair man had tried "everything under the sun") to do this type of repair. Found a YouTube vidieo from a man in Australia, followed his advice and it's still not leaking!

Audi A4 in North Carolina, United States Jul 2011 - Jan 2015
Apr 2012 33000 mi US $85	Convertible top would not lower, motor that unlocks the roof was bad. Parts were $1000, warranty paid with us paying $85
May 2012 33400 mi	Convertible top stopped working again, dealer replaced the hydraulic motor(s) that opens the trunk access where the top is stored. Convertible sop stopped working again, dealer replaced the hydraulic motor(s) that opens the trunk access where the top is stored.
Dec 2012 39000 mi US $320	Flip lever in trunk that allows more trunk space when convertible top is up. The flip lever cable had to be replaced.
Aug 2014 46000 mi US $1575	All the issues with this car have involved the convertible top, this time the rear window was coming loose from the sailcloth top after putting the top up. Audi dealer wanted over $5k for this repair.
Jan 2015 48000 mi US $120	Oil leak Interior Console lid broke

Audi A4 in Minnesota, United States May 2017 - Jul 2021
Nov 2017 114000 mi US $2700	new turbo unit (was leaking oil into turbo air intake hose), New headlight assemblies. The clear lens was a bit clouded, and allowing intrusion of visible moisture to the interior of the headlamp assembly. I also wanted it to look newer than it did.
Mar 2018 120000 mi US $500	trans axle replacement. I noted the car vibrating at acceleration - replaced both, though 1 side was the bad one (both new made more sense. Also, replaced rubber hose connection between the windshield washer 2 reservoirs -was leaking.

Audi A4 in Trinidad and Tobago Sep 2014 - Dec 2016
Aug 2015 53360 mi $2500	Noise heard when going over rough spots. Had to change the ends.
Oct 2015 55160 mi $850	The coolant in the radiator was running low and it was identified that the water pump had a leak on it and thus the coolant was leaking out. The water pump was replaced.
Aug 2016 72400 mi $300	The Cabin Air Conditioner Filter was dirty and had to be replaced. In addition the system was re-gassed. Interior Hood Upholstery was hanging and was re-done.

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Audi A4 in Massachusetts, United States May 2011 - Jul 2016
Jun 2012 43000 mi US $100	Convertible top light blinking at start up. Cleared fault code (single wire mode)and adjusted top mechanisms. Could have cleared code myself. Adjustment of top not warranty or Audicare covered.
Nov 2013 58800 mi US $85	Main flap position servo motor failed. Unable to direct heat to floor. Repaired under CPO warranty. $85 deductible
May 2016 88000 mi US $120	Exhaust Flex Coupling leaking. Part replaced while I waited. Very quiet again under the vehicle.

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Audi A4 in New York, United States Jul 2012 - Feb 2016
Aug 2012 31500 mi	Expanding trunk mechanism and latch broken on convertible.
Sep 2015 82000 mi US $90	Check engine. Misfire. Just swapped coil packs. Has not recurred.

Audi A4 in Mississippi, United States Jan 2010 - Dec 2012
Mar 2010 35000 mi	engine misfire

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Audi A4 in British Columbia, Canada Jan 2010 - Jun 2011
Mar 2010 19840 mi	Carbon buildup - FSI engine (3.2l)

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Audi A4 in Florida, United States Oct 2009 - Aug 2010
Dec 2009 32000 mi	They put a wedge in the passenger side xenon headlight because it would vibrate.

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Audi S4 in Washington, United States Mar 2009 - Jan 2010
Oct 2009 27000 mi	losing antifreeze. gasket replaced upper bushings on front shocks cracking. replaced

Audi S4 in California, United States Aug 2009 - Mar 2010
Oct 2009 32300 mi	Windshield washer was mis-aligned, did not hit windshield properly Auto-open window settings did not function properly

Audi S4 in Idaho, United States Jun 2015 - Sep 2017
Jul 2016 165300 mi	leak cv joint, replaced and repaired gasket and parts. $400.00

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Audi S4 in Colorado, United States Jun 2009 - Jun 2011
Mar 2010 34000 mi	Satellite Radio receiver stopped working and was replaced.
Sep 2010 42000 mi	window switch was replaced

Audi S4 in New Jersey, United States Dec 2009 - Dec 2012
Apr 2010 29000 mi US $50	coolant leaking - found a faulty hose
Jul 2010 32200 mi	Aux radiator leaking

Audi S4 in California, United States Jun 2013 - Jan 2022
Feb 2015 45100 mi US $1000	Replace belt
Mar 2017 56000 mi US $500	Replace front upper control arms due to worn bushings (cheaper to replace arms than press in/out bushings.
Aug 2017 58000 mi US $3364	Plastic(!) valve cover gaskets warped, leaking oil. Covers replaced with new OE at tremendous cost. Audi cursed out loud. Oil cooler leaking coolant from seals. Seals replaced.

Audi S4 in Illinois, United States Nov 2008 - Jul 2011
Jul 2010 46000 mi	Power steering would fail in hot temperature. Part replaced in steering column.

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Audi S4 in California, United States Sep 2010 - Jun 2011
Nov 2010 28200 mi	passenger side rear seat was stuck so it couldn't be folded down. Lock mechanism was replaced
Jun 2011 40000 mi	Home link system stopped working. The Vizor was replaced along with the electronics in the vizor itself.

Audi S4 in California, United States Nov 2015 - Jun 2017
Dec 2015 95000 mi US $900	P0171 check engine code. Right bank too lean. Vacuum hose replacement
Jan 2017 US $125	Rear window regulator failure

Audi S4 in Alberta, Canada Nov 2010 - Feb 2015
Sep 2011 51460 mi C $600	Rust in rear right fender
Jan 2012 53940 mi C $80	Fail to start
Mar 2012 57040 mi	Leaking Valve Covers
Apr 2013 64680 mi C $700	Ignition coil faulty
Sep 2013 67580 mi C $2000	Coolant Leak, water pump housing replaced Replaced both front headlights. (HID)
Jan 2014 64220 mi C $900	Power steering hose blow out, lost steering while cornering, had to pull off immediately and be towed.
Sep 2014 77500 mi C $4500	Intake Manifold Pan Valley Gasket Leak CV boots both replaced, torn.
Dec 2014 78120 mi C $90	Bluetooth module died, also damaged radio and nav which caused parasitic drain on battery. Dealer disconnected Bluetooth and audio/nav. Said replacement would be $3,900.
Jan 2015 71300 mi	Took to an independent shop for a second opinion, they reconnected the RNS-E and told me that it was behaving properly and there was no parasitic drain from the radio, only from the Bluetooth module.

Audi S4 in California, United States May 2013 - Sep 2013
Jun 2013 66000 mi US $50	Cruise control stalk stopped working. Replaced with a used stalk.
Jul 2013 66300 mi	Squeaking noise during idle and acceleration. Replaced serpentine belt, idler, and tensioner.

Audi S4 in Massachusetts, United States Dec 2011 - Dec 2012
Dec 2012 47000 mi US $85	Car went into crawl mode. Dealer found issue with cruise control switch. Had car towed to dealer

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Audi S4 in Virginia, United States Mar 2012 - Jun 2018
Jun 2012 95000 mi US $1350	Power steering pump hoses failure, both to and from hoses cracked.
Jul 2017 156000 mi US $5000	Timing chain components and clutch

Audi S4 in Illinois, United States Jan 2010 - Sep 2015
Jul 2010 16000 mi	Shifting into 1st gear from neutral is difficult sometimes. Shifting into 2nd and then into 1st makes the problem a little better. Shifting into 3rd is also sometimes difficult. When starting the car in the morning after sitting all night the engine surges for about 10 – 15 seconds. Twice I have experienced engine surging (rapid RPM increase) without pressing the accelerator. Once while in gear and once while shifting gears. The bolster on the left side of the drivers side seat is starting to crack after only 15,000 miles. The passenger side rear view mirror does not return from curb view after taking the transmission out of reverse. The RNS-E satellite navigation systems sometimes fails to read the map DVD after the unit has been operating for some time and the car is turned off and restarted. Automatic windshield wiper control occasionally starts wiper when the weather and windshield are dry. When using auto close the passenger front window closes and then re-opens partially. Reset the Time/Distance to next service display. Check Engine Light came on. Code P2097 - Post Catalyst Fuel Trim Too Rich Bank 1. Dealer replaced O2 Sensor.
Sep 2010 17000 mi	Clutch would not disengage. Pressure plate release spring was faulty. Fingers on pressure plate were severely damaged causing the clutch to always be in contact with the fly wheel.
Mar 2011 23000 mi	Oil level low light came one. I was told that the low level light comes on with the engine is less than 1 quart low and that it is not uncommon for this car to consume as much as 1 quart in 1,000 miles.
Apr 2011 25000 mi	Cruise control failed to work. Clutch sensor replaced. Heating system was either too hot or too cold. Excessive noise from inside dashboard when heat is on. HVAC dampers and motors inside dashboard.
Dec 2012 35000 mi	Engines surges when cold. RPM varies between 800 & 1200.
Feb 2013 35700 mi US $85	Variable Assist Solenoid intermittent failure.
Nov 2013 43400 mi US $80	Rattle coming from rear seat
Sep 2015 59000 mi US $600	Replaced Serpentine belt. It was starting to crack.

Audi S4 in Florida, United States Apr 2008 - Jun 2017
May 2012 49500 mi US $140	Glove box hinge broke and passenger seat cover (backside) became debonded.
Dec 2012 54000 mi	key/ignition cylinder refused to turn rendering car unable to drive.
May 2014 64000 mi	Clutch switch for cruise control dry rubber bushings cracked and falling out
Jul 2014 65300 mi	Mass air flow sensor broke damaging throttle body. MAF and throttle body replaced.
Oct 2014 67300 mi US $458	Car completely lost electrical. Nothing worked. Was told serpentine belt was too worn and would not charge battery.
Dec 2014 69000 mi US $1400	Lower power steering hose failed spraying all fluid over the engine causing smoking and was then not drivable. $300. for parts, $1100. for labor. Two weeks after extended warranty expired.
Mar 2015 72000 mi US $2769	Oil leak. Valve cover gasket, oil cooler o-ring.
Jan 2017 85221 mi US $6000	Motor mounts, brakes all around, windshield washer pump.

Audi S4 in Virginia, United States Dec 2014 - Sep 2015
Mar 2015 62000 mi US $600	Intake Mani gasket and 02 sensor replacement
Sep 2015 69000 mi US $400	alternator belt and tensioner replacement. belt broke.

Audi S4 in California, United States Oct 2012 - Jun 2018
Oct 2013 56000 mi US $242	loose rack and pinion bolts

Audi S4 in Georgia, United States Jun 2012 - Jul 2014
Jul 2012 56800 mi	(2) catalytic converters failed, so car would not pass emissions. They will be replaced under warranty.
Mar 2013 63000 mi US $182	Replace reverse light switch. Noticed a problem with 'Rear Parktronic' & 'Reverse lights' not working. Checked fuses, bulbs & tailights, and they were working. It was the switch that failed.
Jun 2013 68000 mi US $800	Replaced alternator drive belt, idler pulley, belt tensioner, front crank pulley & snub mount. Snub mount and belt were worn.
Apr 2014 74000 mi US $400	One of the original coil packs had failed. And the wiper blades needed to be replaced.

Audi S4 in California, United States Aug 2012 - Sep 2012
Sep 2012 66000 mi US $85	Headlight surround for DRL burned out. Fuel pump failure.

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Audi S4 in Pennsylvania, United States Jan 2013 - Aug 2021
Feb 2013 60300 mi US $850	Replaced all 4 upper control arms (bushings are built into the arms, cannot be replaced individually). Very rough roads wore them out earlier than usual.
Nov 2015 96900 mi US $500	Convertible top motor failed, leaving top halfway up. Had to manually bring it up and close it. Motor may be repairable or may need to be replaced. We will fix it in the spring. Typical motor replacement with labor is $800.
Jun 2016 101000 mi	Convertible top fixed. Problem was loose connection in top electric motor (brushes) No new parts needed.
Dec 2016 107000 mi US $50	Convertible top window has separated from canvas and lets water into rear deck and trunk. Also, main seam along length of top is separating. Attempting window fix with 3M Window Adhesive
Jul 2017 114000 mi US $300	Rear window glass continued to separate from canvas top letting water into car. Noticed was still a problem when heard water sloshing under floor when going around corners - water had leaked behind rear seat into space under rear seat footwells. Dense foam in flooring soaked it up until it sloshed. Used 3M Black Window-Weld around all edges of window and forced into into any areas that separated. Applied pressure with weights to maintain window/fabric contact for 24 hours to set up. No More leaking. Had to pull up carpets and squeezed at least 2 gallons of water out of foam under floors, and kept in the sunlight every day for a week or so to dry it all out. Convertible top failed. Previous repair included resetting brushes on electric motor attached to hydraulic pump, but that did not work this time. Bought a new electric top pump motor from Audi dealership and self-installed. Worked immediately. Took about 3 hours total to remove all trim to get at motor, take out motor, replace, and put trim back in place.

Audi S4 in California, United States Mar 2008 - Jun 2019
Jul 2010 34000 mi	Upper control arm bushings replaced. Car was in for 35,000 service and issue was discovered.
Jan 2013 76500 mi	Serpentine belt was failing.
Jul 2013 61500 mi	Ignition coil failure
Aug 2013 62000 mi US $1200	Airbag sensor failure.
Feb 2015 74600 mi US $450	Driver's door lock not always unlocking with remote.
Oct 2015 78300 mi US $327	Key fob quit working. Ordered new one a reprogrammed all keys.
Feb 2016 81400 mi US $600	Replaced N80 valve.
Apr 2016 83300 mi US $4535	Replaced leaking valve cover gaskets Replaced upper control arm bushings. Replaced cracked coolant reservoir.
May 2016 84000 mi US $500	Car would not start. Supply power relays faulty. Both were replaced.
Jun 2016 85000 mi US $1100	Replaced left lower guide link bushings and wishbone.
Sep 2016 87000 mi US $1100	Glass rear window separating from convertible top.
Dec 2016 88000 mi US $800	Car failed to start. Dealer changed coil pack. Car failed to start. Dealer changed fuel pressure sensor.
Jan 2017 81800 mi US $200	Car failed to start. Had it towed to independent repair shop. There were too many codes for them to even attempt a repair. Car failed to start. Took it to dealer due to the number of codes found in VAG COM. Dealer cleared codes and said they could not replicate problem. Car failed to start. Took back to indy shop. VAG COM code showed camshaft sensor failure. Went back to the dealer since they have been paid numerous times for repair. Dealer said there were no codes, then called and said fuel pump $1700. Dealer "guessed" at fuel pump @ $1700. Took car back to indy. VAG COM showed camshaft sensor failure. Indy changed camshaft sensor. No problem since.
Mar 2017 91000 mi US $1400	Bluetooth module failed.

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Audi S4 in Ontario, Canada Jan 2011 - May 2019
Oct 2011 25497 mi C $500	Faulty Top Position Sensor replaced
Mar 2017 50220 mi C $1500	Water Pump housing cracked, so it and water pump and thermostat and coolant replaced. Since the front bumper had to be removed to do this, the sepentine belt was replaced at the same time (it was looking aged).

Audi S4 in Washington, United States Oct 2010 - Nov 2017
Dec 2010 33500 mi US $60	Replaced headlight switch - satin finish was peeling. Replaced headlight switch - satin finish was peeling
Jun 2012 41800 mi US $410	Convertible top is not operating correctly at times and gets stuck. Rear passenger seat belt sensor was faulty and triggering the air bag warning light on the dash. Replaced the rear passenger seat belt sensor. Negotiations with Audi dealership reduced the cost by 50% as a goodwill case. Convertible top would not retract consistently but would hang mid opening. Sensor switch was replaced.
Dec 2012 44000 mi US $150	Battery was slowly dying.
Oct 2013 48200 mi US $100	Replaced all 4 control arms.
Apr 2017 65000 mi US $280	Replaced front pads and rotors.

Audi S4 in Ontario, Canada Apr 2010 - Jan 2022
Dec 2012 37200 mi C $150	Slow leak in lower rad hose assembly
Jul 2013 39680 mi C $100	Recharge of refrigerant. leak check...non found
Jun 2014 42160 mi C $200	convertible top quit working. dealer diagnosed problem, removed, cleaned contacts and re-installed same motor. said it needed replacing kkif this fix didn't work. failed in one week so motor was replaced. a/c empty, no leaks found. Re charged still not working. dealer determined compressor and dryer needed replacement. Over $1700.00 in parts alone required. Elected not to repair it.
Sep 2014 43400 mi C $773	Engine light came on. Analysis determined 3 out of the 8 coils were faulty. Changed all 8 and replaced spark plugs which were original
Nov 2016 48760 mi	Analyze electrical system. Replaced original 10 year old battery
May 2019 57040 mi C $900	Convertible top worked intermittently. Dealer got it to work for a month then it failed again.
Jul 2019 58280 mi C $1000	Second visit for an intermittent working convertible top

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Audi RS4 in Great Britain - Oct 2008
Mar 2008 1500 mi	DRC suspension failure. Eventually successful repair when dealer replaced most of the suspension components.
Apr 2008 2000 mi	Paint on the wheel valves had flakes, replaced them.
May 2008 3000 mi	Intermittent hesitation when setting off in first gear. Design flaw, no repair.
Jul 2008 4500 mi	Carbon build up in engine due to incompatibility between the engine and recommended oil. Car sent to an independent specialist with a rolling road. Car was not producing anywhere near specified BHP. Found that a problem with many RS4s.

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Audi RS4 in Ontario, Canada Mar 2008 - Mar 2010
Dec 2008 21700 mi C $467	All 8 control arms replaced under warranty. Tie rod ends are considered 'normal wear & tear' as such I had to pay for replacement and the alignment... not what I expected at 32k

Audi RS4 in Massachusetts, United States Nov 2009 - Jan 2011
Dec 2010 59000 mi US $200	ECM upgraded because the engine threw a code for Carbon Build up. I "believe" this will have the engine run a little hotter and have the threshold for the code set higher.

Audi RS4 in Florida, United States Aug 2012 - Sep 2012
Sep 2012 93000 mi US $1800	replace front cv joints/boots & clutch. also drc replaced by dealer du to tsb recall.

Audi RS4 in California, United States Jan 2009 - Mar 2013
Nov 2010 37000 mi	Center console was bubbling and was replaced Parts ordered from previous trip were installed without issue.
Dec 2012 55000 mi US $189	Check Engine light for "Too Lean" fault. Single O2 sensor replaced and issue resolved.

Audi RS4 in Texas, United States Aug 2012 - Jun 2018
May 2015 109700 mi US $175	Replaced Xenon headlight lamp
Sep 2015 114000 mi US $2100	Intake valve flaps and position sensors were reporting errors. The flap arms were replaced and the oil separator was replace. Intake valves were cleaned of carbon deposits.

Audi RS4 in Wisconsin, United States Aug 2010 - Dec 2012
Oct 2010 45500 mi	Lower molding on both driver and from passenger door had separated from car and metal backing strip had rusted leaving some staining on paint of rocker pannel. Parts were removed - pics provided veritying no rust on door panels-replaced!
Jan 2011 48800 mi US $300	Bad wheel bearing - replaced- 70% of repair covered by manufacturer with out of warranty assistance

Audi RS4 in Ontario, Canada Aug 2012 - Mar 2016
Mar 2014 89280 mi C $100	Rear O2 sensors failed. Check engine light on.
Aug 2014 95480 mi C $255	Check engine light: Outside air temperature sensor replacement. Replace O2 sensor. Replace clutch pressure plate with 3R from JHMotorsports. Failed due to a shop's abuse. Replaced washer jet - driver's side. Replace O2 sensor. Check engine light: Outside air temperature sensor replacement. Replaced washer jet - driver's side. Replace clutch pressure plate with 3R from JHMotorsports. Replaced failed O2 sensor.
Feb 2015 102920 mi C $2977	R/F upper control arm bushing torn and has play. Inner tie rod also has play. R/F spindle fractured where upper control arms mount. Remove and replace including wheel bearing. Remove and replace bank 1 sensor 2 oxygen sensor. Vibration/Buzz sporadically & rattle over bumps. Exhaust system hanger broken causing exhaust to rest on cross beam. Replaced hanger and space out cross beam.
Jul 2015 106620 mi C $465	Air leak in oil/water separator
Sep 2015 109740 mi C $960	Carbon cleaning of exhaust valves on block.

Audi RS4 in Michigan, United States - Feb 2009
Feb 2009 25000 mi	Front control arms and e-brake button

Audi RS4 in Indiana, United States Nov 2012 - Jun 2017
Apr 2013 70700 mi US $2300	Mechanical clutch failure, not able to get it into gear in the morning when cold. Clutch not engaging fully. Replaced clutch.
Oct 2014 83200 mi	Master cylinder on the clutch broke, resulting in inability to shift gears due to loss in hydraulic pressure
Mar 2015 85000 mi US $1000	Bluetooth module was draining battery and had to be replaced
Jun 2016 95000 mi US $3000	Suspension was leaking hydraulic fluid and needed to be replaced Carbon buildup needed to be cleaned, and fuel injectors replaced

Audi RS4 in Colorado, United States Mar 2011 - May 2014
May 2011 50000 mi	Faulty tire pressure sensor - replaced

Audi RS4 in New York, United States May 2009 - Jan 2018
Oct 2013 51200 mi US $1200	Carbon buildup in intake manifold and valves. Must be manually cleaned. Known issue audI won't cover. Engineering flaw with direct injection system.
Sep 2017 76000 mi US $900	Control arms replaced. Bushing worn out

Audi RS4 in District of Columbia, United States Dec 2009 - Dec 2010
Jun 2010 28000 mi	Oil level sensor

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Audi A4 in Colorado, United States Jul 2007 - Mar 2010
Dec 2007 10000 mi	High pitched "whistle" at high rpms under WOT conditions. Diagnosed as PCV valve failure.

Audi A4 in California, United States Jun 2008 - Sep 2016
Aug 2008 9000 mi	Rattle on drivers side and reset service light. Rattle on drivers side. Turned out to be a loose fuse box cover.
May 2011 22000 mi	Driver seat belt sensor failed so airbag light on. Part had to be ordered so took two days to fix. Offered rental car as replacement.
May 2015 38000 mi US $1300	Cambox oil leak. Gasket replaced Thermostat housing leaking. Housing and thermostat replaced
Jun 2015 38000 mi US $460	Right drive shaft oil seal failure
Dec 2015 42000 mi US $450	PCV failed. Audi replaced pCV and fuel regulator under emission warrantee. I had to pay for cambox oil leak. Previous mechanic failed to diagnose and dismissed my telling him the underlying issue (low miles,shirt journeys, oil on filler).

Audi A4 in Iowa, United States Jul 2007 - Dec 2012
Feb 2011 29000 mi	Emissions control valve failed

Audi A4 in Alberta, Canada Oct 2008 - Sep 2014
Apr 2009 37820 mi	car was bought as CPO. rear ashtray lid hinge was broken and was not caught when we originally picked up the vehicle. replaced no questions asked. drivers side wiper arm had no tension against windshield. arm was replaced (wipers too). passenger side headlight washer extend/retract motor needs replacing. washer will not retract when used. parts not in stock, will be replaced on next trip to dealer.
Jul 2009 40300 mi	Replacement windshield incorrectly installed at dealership before purchase last october, causing excess wind noise. Dealership paid for new windshield and install. Passenger side headlight washer replaced
Mar 2010 46500 mi	Driver side headlight washer does not fully retract. to be replaced at next visit to dealer. under warranty. Driver side wiper arm had low tension, not wiping properly. Arm and wiper replaced under warranty. Compass LCD in rear view mirror cracked in very cold weather (-35C). New RVM ordered to be replaced under warranty on next visit. Fuel gauge would not read full when filled. Dealer recalibrated sensor.
Oct 2010 52780 mi C $100	Cracked LCD in rear-view mirror was replaced under warranty. dealer forgot to order replacement part even with 1-month advance notice. to be replaced at next dealer visit. had noticed blue smoke on decel after heavy throttle application. dealer found PCV valve plugged, replaced valve and valve cover, cleaned out intake / intercoolers.
Feb 2013 78740 mi C $35	Windshield washer pump started leaking. Removed to verify source of leak, then removed again to replace when pump arrived in the mail. Apparently a relatively common problem. Ordered from ecs tuning.
Mar 2014 89280 mi C $1740	diverter valve and valve cover PCV system failure. diagnose and replace both. Also replace timing belt, pulleys, water pump at Audi's cost.

Audi A4 in New Jersey, United States Dec 2007 - Sep 2011
Jun 2008 35000 mi	Faulty gas cap, was replaced under warranty. Fuel pressure regulator recall. Was made aware by service adviser when I brought the car in for routing maintenance.
Dec 2009 60000 mi US $75	Failed diverter valve. Part replaced
Mar 2010 64000 mi US $60	Check engine light revealed large evap leak. Diagnosed failed N80 and breather valves.

Audi A4 in Washington, United States Jun 2017 - Sep 2018
Aug 2017 88000 mi US $879	75000 mile maintenance. Included oil change and diagnostic of excess oil burning.
Sep 2017 89000 mi US $2150	Catalytic converter clogged Engine snub mount degraded. Upgraded with polyurethane mount. Coolant flush needed due to incorrect type of coolant in system when car was purchased. Included, thermostat, seals, coolant flush. Also signs that the temp sensor and coolant flange were failing, and in there, so replaced these as well.
Dec 2017 91225 mi US $2300	Valve cover was found to be leaking large amount of oil into the inter cooler. Replaced valve cover and gasket. Internal waste gate found to be leaking into the Turbo and inner oil seal was also found to be leaking.
Feb 2018 94000 mi US $48	Valve cover flap had broken causing the engine to burn excessive amounts of oil. 1qt every 600 miles. Oil change. Noticed Oil leak around filter housing or Oil Cooler. Ordered seals.
Jun 2018 98000 mi US $228	Engine would cut out after high idle on start was done. Had no check engine light but when pulling codes for that there was a code for low voltage to the low volume fuel pump. Replaced fuel filter and Fuel voltage regulator that required dropping part of the fuel tank.
Sep 2018 100000 mi US $1433	System flush due to millage and hesitation in down shifting

Audi A4 in Utah, United States Oct 2016 - Jun 2018
Jan 2017 98000 mi US $1200	Replaced exhaust valves (previous owner ran low octane fuel, detonation chipped away at them), cam chain, tensioner and timing belt. Car was running on two cylinders. That's what you get for a screaming deal at an auction.
Sep 2017 104000 mi US $100	Coolant leak so i replaced the coolant flange. Oem part $60.

Audi A4 in Ontario, Canada Oct 2010 - Apr 2011
Mar 2011 59520 mi C $320	Fuel pressure sensor failed, defaulting to reading high fuel pressure so the engine management shut down the fuel pump. Car lost power and had to be towed, fixed the same day by dealer.

Audi A4 in New York, United States Nov 2008 - Jun 2022
Mar 2010 41000 mi	replaced ignition coils
Dec 2011 52000 mi	replaced coil pack on one cylinder (which was already replaced 1 yr earlier as part of the recall); replaced valve cover gasket
Oct 2012 59200 mi	Intake manifold runner control motor fault
Oct 2013 65200 mi US $60	Rear speaker amplifier (Harmon Kardon) failed; replaced with used component
Sep 2014 69000 mi US $45	Rear speaker amplifier (Harmon Kardon) failed again; replaced with used component
Sep 2015 70000 mi US $1299	Exhaust system failed / rusted out after 9 years on salted Northeastern streets. Replaced with Europa Parts stainless performance exhaust system. A bit noisy, but noticeable performance improvement.
Dec 2016 72000 mi US $50	Replaced two blown speakers in rear door
May 2018 73000 mi US $50	Replaced failed thermostat

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Audi A4 in California, United States Feb 2007 - Jan 2010
Apr 2007 5000 mi	Car had start problems in the morning. Fuel line pressure monitor had to be replaced.
Feb 2008 25000 mi	Headlight washer broken.
Feb 2009 38000 mi	Rear window washer blocked. Driver seat back was broken but not fixed.
Jan 2010 US $330	Back of the driver seat was broken. Dealer claimed it was not a warranty item, and wanted $330 to fix it, so I never fixed it.

Audi A4 in Texas, United States Feb 2007 - Mar 2010
Mar 2007 2000 mi	Hood had damage at delivery. Audi replaced hood

Audi A4 in Vermont, United States Jun 2007 - Sep 2022
Jul 2007 1000 mi	Cargo screen does not fully extend.
Oct 2007 3500 mi	Replaced cargo screen with new part. Received/replaced cargo screen ordered in July 2007
May 2008 9540 mi	Had brake noise (right front): "glaze" on pads reported. Performed TSB 2015505/2 (replace PCV valve) and 2015505/3 (remove & reinstall pressure regulating valve) to address small oil leak at fill cap and oil consumption (warning light - had to add ~1 qt
Mar 2010 28000 mi	Passenger side wiper arm not properly pressing wiper against window. (noticed after change in wiper blades - Nov 2009, but lived with it until had another reason to bring car in)
Jan 2011 35500 mi	replaced windshield after cracked when replacing wipers (spring loaded arm hit glass with no wiper blade on arm). Replacement covered by insurance with no deductible (no cost info provided on invoice)
Mar 2012 47934 mi US $177	Valve cover gasket replaced to address oil leak. $38 part + $105 labor Replaced valve cover gasket.
Jun 2012 50251 mi US $369	Car running with rough idle. Valve cover breather valve and pipe replaced. Mechanic noted database (TSB?) described this as potential common problem. Replaced valve cover breather valve and pipe.
Jun 2013 60672 mi US $220	Driver rear turn signal light not working due to broken connector on tail light circuit board. New board, connectors, and wiring replaced diagnose non-functioning tail light. Determined to be failed circuit board and connector Driver rear turn signal light not working due to broken connector on tail light circuit board. New board, connectors, and wiring replaced
Sep 2013 63256 mi US $727	Stuck rear driver side calipers. Calipers, rotors, and pads replaced. Rear brake calipers stuck while driving. Replaced calipers, pads, and rotors.
Jul 2014 71500 mi	The door on my glove compartment is broken (right side hinge snapped off completely). Haven't fixed it because phone estimates are $300 for just the parts.
Jan 2015 77072 mi US $292	Sticking caliper on passenger rear wheel. Had been previously replaced with a remanufactured part Sept 2013. Sticking caliper on passenger rear wheel. Had been previously replaced with a remanufactured part Sept 2013.
Feb 2015 77872 mi US $2408	Low oil pressure warning light came on and engine was running very poorly. Oil pump was replaced. Diagnosed low oil pressure problem to be failed oil pump.
Jul 2015 83048 mi US $508	MIL came on and car was misfiring badly. One ignition coil was not functioning, 2 others were cracked. Replaced all 4 coils. Diagnosic labor and replacement of 4 ignition coils (1 fails, 2 cracked, one proactive) Routine oil change
Dec 2015 88203 mi US $100	Replaced taillight lens on hatch, driver side. Broken by owner while parked in garage.
May 2016 92929 mi US $95	Rattle when shifting. Shop diagnosed as loose heat shield resting on muffler. Resecured shield, but did not eliminate original noise of concern. Noticed rattle noise when shifting. Diagnosed by shop as loose heat shield resting on muffler. Shop resecured, but did not eliminate original noise. Unsuccessful repair.
Sep 2016 97690 mi US $237	Replaced rear light circuit board assembly Child lockout for rear seat windows is stuck in the "on" position (i.e. only the driver can open/close rear windows) Driver side rear light assembly circuit board replacement (2nd time) Right rear brake caliper replacement (was leaking brake fluid) - warranty by shop
Mar 2017 103692 mi US $301	Diagnosis for oil leak. Added oil. Replaced valve cover gasket and crankcase valve to fix oil leak.
Nov 2017 110884 mi US $1852	Brakes failed state inspection due to left rear caliper sticking. Pad and rotor also replaced. Cracked rear brake hoses replaced. Center muffler replaced due to crack/hole
Dec 2017 112000 mi US $40	Had significant vibration at highway speed which began after winter wheels were installed. Had tires rebalanced.
Jan 2018 113829 mi US $339	Multiple misfire codes, higher RPM than expected, too lean at idle codes. Prelim repair attempt pulled spark plugs, cleaned oil from cylinders and reinstalled plugs. MIL came back on in ~2 days Replaced crankcase pressure regulating valve and vent valve gasket
Jun 2018 119000 mi US $200	Major paint flaked off from right front fender (~4 sq in) with light evidence of rust underneath. Note: this fender has twice been previously repaired for minor dent and repaint
Jul 2018 119094 mi US $1703	Diagnostic investigation. Oil bypassing PVC valve pooling in cooler pipe due to split in baffled shield. Replaced valve cover gasket and baffle shield Vibration noted when driving at 50 mph. Replaced wheel bearing. Reattached loose exhaust sheild and sway bar links
Aug 2018 120728 mi US $41	Turn signal out. Requested dealer to replace while car was in for airbag recall service
Dec 2018 124197 mi US $596	Backing of driver's seat came loose. Break wear indicator light on. Replaced front break pads, break rotors, and hardware. Clean and lubricate break calipers and break pads
Jan 2019 125112 mi US $40	Headlight out. Replaced Diagnosis included misfire codes on cylinder 3 and throttle valve controller malfunction. Codes cleared.
Feb 2019 125529 mi US $30	Slow leak in one wheel due to damaged rim. Resealed
Apr 2019 127689 mi US $5	Rear wiper will not operate. Replaced motor Driver's side headlight out - replaced Interior of lift gate loose after prior visit for wiper motor replacement
Jul 2019 129211 mi US $342	right front wheel bearing making noise. Replaced
Nov 2019 132568 mi US $837	Exhaust with rust holes replace rear brake pads, rotors. Clean and lubricate calipers and brake pad slides replace broken rear coil
May 2020 136656 mi US $95	Diagnose check engine light. Code suggested very small leak. Expected loose gas cap.
Jul 2020 137648 mi US $314	Diagnose check engine light. Evaporators codes. Checked for leaks. None found. Ratting noise when driving. Found broken plastic piece on rear bumper. Removed. replaced purge valve
Nov 2020 139159 mi US $591	replaced leaking exhaust clamp Diagnose check engine light remove and replace boost pressure recirculating valve
Apr 2021 141868 mi US $1877	Resonator pipe had come loose. Replaced and reclaimed
Jul 2021 143000 mi US $343	Replaced booster valve installed Nov 2020 at prior repair. Dealer determined aftermarket part was not compatible and check engine light was on as a result
Dec 2021 146500 mi US $48	Low coolant light came on. Tested for potential leak. None found.
Jun 2022 150123 mi US $621	Wire to break pad wear sensor was broken, causing warning light to come on. Breaks were not completely worn (60% estimated remaining), but replaced front breaks - rotors and pads as rotors were showing rust and would not have passed inspection when due in ~December
Sep 2022 152000 mi US $92	Check engine light came on and engine was running rough. Brought in for diagnosis. Fault codes stated engine speed sensor. Shop reported only 0.5V on sensor vs expected 1.2V.

Audi A4 in California, United States Dec 2009 - Jun 2011
Jan 2010 50000 mi	wiring harness for transmission was corroded causing transmission issues

Audi A4 in Ohio, United States May 2012 - Jul 2014
Aug 2013 54800 mi	Bluetooth unit failed Audi replaced at no charge

Audi A4 in Nevada, United States Mar 2010 - Oct 2012
May 2010 58200 mi US $4000	Cam follower failed, had to replace intake camshaft and all related components. Also did timing belt.
Jun 2010 58000 mi US $5000	cracked head on guide rail frame for camshafts. Also had a broken baffle inside the valve cover.
Dec 2010 69000 mi US $1500	Rearview mirror fell off, needs a new windshield. Engine mount leaking. Control arm bushings squeaking.
Jan 2011 70000 mi US $560	Replaced control arms on the front end. leaking engine mount on passenger side. Ordered new mounts for $200 Needed an alignment after replacing control arms. Also had the windshield replaced during the alignment to fix the rearview mirror problem.
Feb 2011 71000 mi US $200	Replaced engine mount.

Audi A4 in Florida, United States Apr 2010 - Jun 2011
Jan 2010 30000 mi

Audi A4 in California, United States Oct 2008 - Sep 2012
Dec 2008 30000 mi US $250	Repair for broken sway bar perch.
Mar 2009 34000 mi	Brake warning light intermittant. Auto unlock when key removed intermittently not working. Hatch not unlocking when door unlock button pressed, intermittently. Drivers window periodically won't stay rolled up.
Sep 2011 85000 mi US $1352	Traction control light and EPC light coming on intermittently, car stalling for a period of time. Replaced throttle body and wiring.
Dec 2011 90000 mi US $120	Second trip for warning lights, stalling.
Mar 2012 95000 mi US $815	At the dealer three times in last six months. Each time the dealer had it for at least a week. Traction control light and EPC light coming on intermittently, car stalling for a period of time. Total of $2300, not fixed.

Audi A4 in California, United States Oct 2009 - Dec 2015
Jun 2011 29000 mi	Oil pressure regulator failure, causing full oil pressure. Oil coming out of fill cap.
Jun 2014 47000 mi	Replaced engine mounts replaced valve cover gasket

Audi A4 in Ontario, Canada Jan 2009 - May 2018
Jun 2009 40114 mi	Water leak in plastic ECU housing repaired.
Sep 2009 42886 mi	Camshaft, cam follower and high pressure fuel pump replaced after cam follower failed.
Dec 2010 53355 mi C $100	replace clutch pedal switch for cruise control
Mar 2011 55180 mi C $100	Check engine light on: Replaced intake flap motor and diverter valve
Oct 2013 78120 mi	Replaced burnt out passenger side headlamp. Clamp connecting two sections of exhaust pipe was cracked. Replaced clamp.
Nov 2013 78820 mi C $150	Camshaft position sensor was leaking oil onto engine. Replaced sensor.
Aug 2014 85560 mi C $130	Backup lights would not shut off. Replaced switch.
Sep 2015 93000 mi C $385	Knocking noise heard from front of car when car was moving. Replaced right front wheel bearing.
Dec 2016 101060 mi C $133	Left rear turn signal & brake lights were inoperable. Connector pins on lamp housing base were corroded. Replaced lamp base module.
Sep 2017 104915 mi C $800	Repaired cracked exhaust at "Y" before resonator. Replaced flex coupling. Noise above 50km/h from front left wheel. Replaced wheel bearing. Also replaced CV boot covers on both front axles.
Jan 2018 106640 mi C $105	Low oil pressure light came on and engine sounded rattly. After a few minutes Check Engine light also on. The problem happened in early evening so I let the car sit overnight. I started the car the next morning and there was no low oil pressure warning but the engine still sounded rattly and the check engine light was still on. I called for a flatbed to get it to my mechanic but due to a snowstorm the truck took 4 hours to arrive and when I started the car to move it out of my driveway the problem was gone, no engine rattle. I still had it taken to the garage but aside from resetting the CEL they could not find any problem. It had been quite cold (-20C) so they think that had something to do with it. I always run synthetic oil so it shouldn't have been an oil flow problem. They don't think it was actually low oil pressure as the CEL was unrelated but the engine noise to me seemed to point to it.
May 2018 108500 mi C $400	Both rear springs broken/replaced

Audi A4 in Kansas, United States Mar 2010 - Dec 2014
Nov 2010 49700 mi	The car was burning oil. Oil consumption test was performed. Dealer determined that piston rings needed to be replaced. After piston rings were replaced I noticed small puddles of oil on garage floor. Took the car back to the dealer and they replaced a valve on the turbo as well as a hose that attached to the turbo.
Jan 2011 51000 mi US $210	Car continued to burn oil. This time, the dealer replaced the gasket cover. So far I haven't seen any additional oil being burned. The entire rear reverse light assembly was removed and replaced.
Sep 2011 60000 mi US $540	Bad wheel bearing was replaced.
Jan 2012 53500 mi US $85	I returned from a trip and there was no throttle response even though the car would start. The ECU appears to have crashed. The dealer re-flashed the ECU and the car runs fine now.
May 2013 80100 mi US $500	Vacuum pump went bad causing an oil leak. The pump was replaced.
Dec 2013 84000 mi US $1600	Replaced motor mounts. Also replaced rear brakes.

Audi A4 in Maryland, United States Mar 2010 - Jun 2015
Jan 2015 63200 mi US $500	A bracket that connected two sections of the exhaust had corroded, it was affecting turbo boost pressure. It was removed, replaced and all else is back to normal. Fuel pump injector failed. Replaced.
May 2015 84000 mi US $600	Broken coils, both sides, in the rear.

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Audi A4 in Massachusetts, United States Feb 2007 - Dec 2011
Aug 2011 108000 mi US $180	Engine computer management software updated.
Sep 2011 110000 mi US $343	Air intake cleaned.

Audi A4 in Pennsylvania, United States Aug 2014 - Jun 2018
Feb 2018 66238 mi US $1400	Center and side engine mounts needed to be replaced.

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Audi A4 in West Virginia, United States Dec 2009 - Mar 2018
Aug 2010 41300 mi	Replaced Clutch sensor
Mar 2011 50000 mi
Jun 2011 54000 mi US $40	Vibration in steering and noise when making left sharp turns. At owners request shop balanced front wheels, vibration solved (2nd trip). Noise still remains. Most people would not notice these issues.
Aug 2011 56600 mi US $60	Battery strap was missing, battery movement was causing the noise.
Feb 2012 64000 mi US $90	Timing belt case oil leak
Jun 2013 83000 mi	Water drains located under battery and brake booster were plugged by debris. Drains were cleaned.
Dec 2013 87000 mi US $135	Replace front left ABS sensor
Apr 2014 89300 mi US $400	Cam shaft seals replaced, leaking oil.
Aug 2014 92400 mi US $400	Intake air control vacuum sliders stuck with carbon built-up. Intake removed and cleaned to restore slider movement and clear code.
Sep 2015 104000 mi US $700	Leak at filter/receiver.
Oct 2015 104500 mi US $300	Crankcase gasket oil leak
Sep 2016 115000 mi US $200	Valve cover gasket replacement
Mar 2018 137000 mi	crankcase oil leak noted, not repaired

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Audi A4 in Florida, United States Apr 2013 - Dec 2013
Jun 2013 85000 mi US $530	Motor mounts crumbling. Axle Boot leaking.

Audi A4 in Florida, United States Mar 2008 - Mar 2010

Audi A4 in California, United States Nov 2008 - Jun 2011
Apr 2010 36000 mi	Check engine light came on and originally thought it was loose gas cap. Found out from dealer there was an issue with the gas tank and it had to be replaced. Car was under warranty so I was not charged for the repair.

Audi A4 in California, United States Oct 2013 - Nov 2013
Oct 2013 99000 mi US $650	Faulty fuel pump.

Audi A4 in Alabama, United States Sep 2008 - Dec 2015
Jun 2009 43000 mi	cracked sunroof housing around open and close switch
Feb 2011 71000 mi US $181	Crankcase valve replaced. Second time, AUDI/VW engineers designed a poor valve. replaced with latest model..HOPE IT LASTS longer than the previous version!!!
Mar 2012 87000 mi US $104	Dipstick replaced. The plastic broke below the pull ring due to heat and poor manufacturing quality control. Sensor then detecting low engine pressure, CEL went on. Cost $104 to replace.
Dec 2013 104000 mi US $2000	Timing belt and engine mounts
Jun 2015 123000 mi US $275	evaporator emissions

Audi A4 in New South Wales, Australia - Oct 2009
Oct 2009 6696 mi	Credit Card Holder is stuck

Audi A4 in New Jersey, United States May 2011 - Aug 2012
Jun 2011 57000 mi	Oil light came on, dealer stated loose oil filter

Audi A4 in Georgia, United States Jan 2011 - Mar 2011
Feb 2011 38000 mi	The childproof lock on the windows had short circuited and needed to be replaced.

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Audi A4 in New Jersey, United States Dec 2012 - Sep 2013
Feb 2013 51840 mi US $2000	This trip was the second oil consumption test since owning this CPO car. The first was shortly after we bought it, when it consumed 1 qt of oil every 1400 mi. Audi installed new piston rings under warranty. $2000 otherwise. The oil consumption, as on many A4s, had been high. First test, performed in '09, car passed. Second test, January, 2013, car failed. Audi approved new piston rings. Work sheet indicates crank was checked and passed specs.
May 2013 59000 mi US $20	After changing the plugs, the car ran well for 1 day. Then it started running on 3 cylinders. Apparently one coil had always been faulty. After replacement of all coils, the car runs better than when bought with 6,600 mi. on it.

Audi A4 in Washington, United States Jan 2007 - Mar 2010
Jul 2007 7000 mi	Bluetooth feature stopped working Bluetooth module replaced
Sep 2009 42000 mi	crankcase breather hose replaced

Audi A4 in Georgia, United States Apr 2017 - Jun 2022
Jun 2017 120500 mi US $10	Replaced hood strut
Mar 2018 123000 mi US $120	Coolant loss caused from leaking and cracked rear coolant flange.
Apr 2018 123000 mi US $350	Misfires caused by carbon build up. Carbon cleaning was performed.

Audi A4 in California, United States Feb 2010 - Oct 2011
Mar 2011 26450 mi US $571	Manifold runner valve failed and triggered CEL. Valve repaired and car is fine now. Check Engine light lit with loss of power. Had to replace Intake Manifold Runner Control valve and reset CEL. $571.00 total cost.

Audi A4 in Washington, United States Nov 2008 - Apr 2015
Jun 2010 41000 mi	Check engine light, shop TSB 2016868/4 states to replace intake flap motor, intake flap motor replaced.
Jan 2012 59200 mi	front right wheel bearing replaced

Audi A4 in Colorado, United States May 2009 - Sep 2013
Mar 2010 33000 mi	Complained of slow shifting to 1st gear at stop. The dealer changed (updated) some software.

Audi A4 in California, United States May 2008 - Sep 2016
Dec 2011 40000 mi US $90	PCV valve
Mar 2014 53000 mi US $400	leaking coolant manifold

Audi A4 in Kentucky, United States May 2007 - Dec 2008
May 2007 5500 mi	5,000 mile service (free); attempt to fix must smell from HVAC (warranty). HVAC fix worked for a couple of weeks. Still getting must smell.
Aug 2008 15000 mi	Misfire at highway speeds, especially at high ambient temperatures and with cruise control on. Musty smell from HVAC. Dealer said that replacing cabin filter (part of 15k service) would fix. It didn't.

Audi A4 in Nunavit Territory, Canada Dec 2011 - Dec 2018
Jan 2012 44020 mi C $694	Thick white smoke from exhaust and loss of power when accelerating. Diagnosis found oil in the Intercoolers. Drained oil from intercoolers, replaced hose, gasket and sparkplug
Mar 2012 46500 mi C $32	Thick white smoke coming out from Exhaust when accelerating. Loss of power felt. Thick white smoke from exhaust. Check engine/Mil. light came on.
Jun 2012 50220 mi C $341	Smoke reappeared on acceleration despite replacing Turbo. Dealer suggested replacing Valve cover.
Mar 2013 62620 mi C $1494	Complete timing belt job Camshaft seal leaking Valve cover gasket leaking
Jun 2016 102920 mi	Click sound on steering. Mechanic diagnosed problem with Control Arm and a few associated parts. Repair not done yet. Plan to do it in the next month
Sep 2017 117180 mi C $1004	Diagnosis - Inner pad worn. Replace rear pads & Rotors. Dust boots on rear caliper torn. Recommend both calipers be replaced. One of the sliders had a torn boot as well. Diagnose - A/C not cold as it used to be. A/C recharge - Diagnosis found no other problems 190201 - Replace Passenger Airbag ignitor as per recall Diagnosis only - Coolant flange leaking, Thermostat faulty

Audi A4 in New York, United States Jul 2011 - Mar 2014
Feb 2014 72000 mi US $420	Head Gasket Replaced, Crank Case Ventilation Valve and Gasket Replaced

Audi A4 in New Jersey, United States Sep 2012 - Oct 2012
Oct 2012 82000 mi	had to replace torque converter

Audi A4 in Quebec, Canada Dec 2009 - Dec 2010
Dec 2010 40920 mi	Slight engine shuddering due to PCV.

Audi A4 in Maine, United States Apr 2014 - Dec 2017
May 2014 87000 mi	radio draining the battery.
Jun 2014 88000 mi US $200	Current problem is something with the fuel system. Car will barely crawl. Two problems within two months, not good. Love the car when it works properly, which has been about two weeks. Dealer narrowed problem down to hpfp or regulator.
Jul 2014 88500 mi US $100	Used car dealer installed high pressure fuel pump with $100 deductible. Update: they installed a used pump, failed again a month later. Limping around, trying to get Audi to honor warranty.
Aug 2014 89100 mi US $1200	Car running poorly, limp mode, low fuel pressure, check engine light, EPC light. Replaced LPFP and HPFP, didn't resolve issue. Dealers just throw parts at a problem.
Oct 2014 91200 mi US $30	Car still going into limp mode, EPC light still coming on. Replaced two 612 or 614 relays myself based on forum suggestions, 5 minutes. Still ran awful until a shop cleared many codes. So far 150 miles issue-free. Probably $30 relays the whole time.
Jan 2015 92300 mi US $115	It is still not fixed.
Apr 2015 94300 mi	For at least 8 months I have been having fuel pressure issues. We have replaced everything under the hood fuel related even the ECM to no avail. Car is going back to the shop tomorrow. This car is a fluke not the rule. Usually a very nice car.
Jul 2016 107000 mi US $5000	Fuel cuts. Ongoing. Entire time I've owned the car with no end in sight. For a premiem car this one is fucked.
Oct 2016 111000 mi US $600	After 3+ years and thousands of dollars spent the culprit was the clip that goes onto the top of the hpfp. Lesson, go to Darlings Audi if you're in Maine.

Audi A4 in Michigan, United States Feb 2015 - Jun 2022
Sep 2017 115000 mi US $550	Replaced resonator. Exhaust leak, noise.
Sep 2020 129000 mi US $400	Replace turbocharger. Valve cover gasket replacement.

Audi A4 in Ontario, Canada Oct 2011 - Aug 2017
Feb 2013 60420 mi C $300	CV Boot torn and needs replacement. Pinch bolt was seized due to corrosion. Tried fixing it myself and at a shop but bolt couldn't be removed, needed to take to dealer.
Jun 2013 65100 mi	Pinch bolt that had been seized was removed. Drilled out existing upper control arm pinch bolt, replaced with OEM bolt with anti-sezie applied.
Mar 2014 72540 mi	Coolant leaked, could not find source of leak, likely result of extreme cold weather. Filled coolant, levels seem okay now.
Jul 2015 73880 mi	Timing belt scheduled maintenance. Water pump replaced and seems to have solved coolant leak.
Apr 2016 83480 mi C $800	Dipped headlight error on dash. HID Ballast and bulb replaced.
Sep 2016 88040 mi C $200	Diverter valve and wastegate actuator replaced. Engine not receiving enough boost. Engine mounts also failed, but have not replaced.
Apr 2017 93000 mi C $2000	Exhaust leak

Audi A4 in California, United States Sep 2015 - Jun 2016
Feb 2016 61900 mi US $1488	suspension parts replaced

Audi A4 in Victoria, Australia Apr 2007 - Jul 2014
Aug 2007 9300 mi	Rattle in light/sunroof control/mirror console on roof. Was told retaining screws for a bracket had loosened and bracket was moving around. Replaced bracket and tightened during scheduled service.
Sep 2008 19840 mi	Centre front armrest squeaking. Told some part of the mount had broken. Replaced armrest and all fine.
Feb 2011 58900 mi A $450	Crank case pressure relief valve failed and was replaced.
Jul 2012 79960 mi A $800	Replaced suspension links due to blown out bushings
May 2013 86880 mi	Booster was not working in alpine location. Had it towed to base of mountain. Mechanics could not find issue (originally thought to be diaphragm collapse). Brakes were working fine. Believe that there was some problem with the vacuum
Jan 2014 87120 mi A $350	PCV had failed and was replaced

Audi A4 in Minnesota, United States Feb 2015 - Jun 2018
Aug 2015 94400 mi	Extended warranty for PCV and flap motor replacement.
Dec 2015 98000 mi US $300	Hydraulic motor mount failed, replaced both, along with snub mount. Replaced cam follower after checking and finding excess wear.

Audi A4 in California, United States Dec 2009 - Jan 2010
Jan 2010	Rear side airbag, seatbelt tensioners. Rattling in suspension over bumps.

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Audi A4 in Texas, United States Oct 2009 - Feb 2010
Jan 2010 38000 mi	Dealer had to replace a faulty ignition coil. Audi paid for the tow and the repair was done under warranty. No out of pocket expense.

Audi A4 in California, United States Nov 2008 - Apr 2011
Nov 2008 18000 mi	groan in steering - problem was a hose coupling that was failing, refilled power steering fluid reservoir after repair
Jan 2009 20000 mi	Air conditioner stopped blowing cold air. Something had been disconnected when 15000 mile service was performed. They reconnected it.

Audi A4 in Virginia, United States Oct 2009 - Aug 2018
Jun 2010 48000 mi US $80	There were a few things. It went in for a recall originally. Noticed sqeaking noise from the engine. It was the timing belt. Dealership changed it. Other work done includes brake fluid flush.
Jun 2013 101000 mi	Positive crankcase valve (PCV) was not creating the proper vacuum seal causing the car idle really rough
Jun 2014 118000 mi	Check engine light indicated fuel regulator pressure problem. Turned out to be low pressure fuel pump controller
Feb 2016 145600 mi US $300	Coolant flange was leaking
Oct 2016 157000 mi US $500	CELs for EVAP system and misfire
Apr 2017 165000 mi US $60	Control Arms and bushings
Sep 2017 174000 mi US $200	Large EVAP leak due to punctured EVAP line behind front bumper on passenger side. Possibly from driving bumper over a curb while parking. The splash guard wasn't installed at the time.
May 2018 182400 mi US $936	Swapped temp sensor o-ring seal due to coolant leak from flange Passenger inner cv boot torn. Boot replaced Lower control arms changed on both sides (front only) Motor mounts were changed. The mounts were dead pretty much. They have been leaking for a long time now. The straight lower arm fail on both sides. I decided to change out all 4 anyhow.

Audi A4 in Georgia, United States May 2008 - Apr 2017
Jun 2008 5000 mi	Check engine light came on. Low fuel pressure sensor replaced under warranty.
Feb 2012 42000 mi	Replaced crankcase vent valve under manufacturer extended warranty
Apr 2012 44000 mi	Crankcase vent valve update: Replaced Turbo Pipe
Mar 2014 53000 mi US $125	Check engine light had been illuminated, but was no longer on. Dealer reviewed stored codes, but found no issues. Was charged $125 diagnostic fee.
Sep 2015 66000 mi US $240	EPC and CEL lights illuminated at start-up. Upon restart the EPC light would go away. Very sporadic at first but eventually started occurring multiple times each day. From forums I learned others had fixed this by replacing the J757 fuel pressure relay.
Jun 2016 71000 mi US $700	Replace thermostat and temperature sensor

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Audi A4 in Vermont, United States May 2008 - Mar 2010
Oct 2008 26804 mi	Went in to fix sun roof rattle again, problem solved (tech said missing screw), squeak in seat has still not been solved even after lubing all parts under seat.

Audi A4 in Maine, United States Oct 2011 - Dec 2015
Jul 2015 122300 mi US $6008	Engine blew related to the turbo using leaking too much oil.

Audi A4 in Alberta, Canada Aug 2016 - Nov 2017
Oct 2017 47120 mi C $800	CV Joints replaced

Audi A4 in Ontario, Canada Feb 2011 - Mar 2013
Sep 2011 71920 mi	Replaced cam cover gasket, small leak

Audi A4 in Michigan, United States Sep 2010 - Mar 2018
Jun 2012 44000 mi	fuel pressure sensor, other? engine light on (for months), covered by audi
Dec 2014 78000 mi US $200	Check engine light on exhaust system fault

Audi A4 in Victoria, Australia Apr 2016 - Dec 2017
Apr 2017 143840 mi A $80	Cooling flange leaking at the end of the engine required replacement of flange. Difficult to do but not expensive part, under 100.
Jul 2017 144460 mi	Exhaust rusted around resonators area, replaced with new item.

Audi A4 in Texas, United States Mar 2008 - Mar 2010
Apr 2008 10000 mi	Sirius module went bad. Needed to be replaced.

Audi A4 in New Jersey, United States May 2009 - Sep 2014
Aug 2009 31000 mi	Cracked valve/camshaft cover
Oct 2009 33000 mi	Car felt a slight bit sluggish. PCV valve was clogged/damaged. Dealer replaced.
Dec 2009 35000 mi	Went in for 35,000 service. In addition told them passenger light vibrates. Was told the bulb needed to be replaced, however bulb was fine. Owner discovered there is a TSB about the issue. Dealer said they would look at it next visit.
Dec 2010 44000 mi	Sunroof drain was clogged. Water dripping onto back seat. Haedliner had not been replaced the first visit. Needed to be replaced due to leak and stains. Headliner was replaced during previous trip, installer kinked drain tube causing leak again. Installer damaged sunroof rails, needed to be replaced. Headliner replaced again.
Jan 2012 55000 mi US $85	relays had to be replaced rear seat belts replaced glove box hinge broken

Audi A4 in Manitoba, Canada Jun 2010 - Jul 2012
Mar 2012 34720 mi C $150	A new battery was required.

Audi A4 in New Jersey, United States Nov 2008 - Sep 2009
Apr 2009 31000 mi

Audi A4 in Colorado, United States Aug 2016 - Jun 2020
Jan 2017 US $1000	Replaced failing clutch.
Jun 2018 191700 mi	Replaced head gasket and rear timing chain

Audi A4 in Michigan, United States Mar 2011 - Jul 2015
Oct 2012 60500 mi US $500	Rignt front wheel bearing replaced

Audi A4 in Texas, United States Feb 2015 - Mar 2016
May 2015 131100 mi	Replaced thermostat housing

Audi A4 in Colorado, United States Jan 2015 - Jul 2016
Feb 2015 137000 mi US $539	throttle body locked up wouldn't open, replaced throttle body

Audi A4 in Pennsylvania, United States Aug 2008 - Dec 2014
Sep 2008 42000 mi	Ignition lock cylinder jammed. Dealer replaced cylinder.
Oct 2008 44000 mi	I had to have the fuel pump piston, cam follower and intake camshaft replaced due to wear. This was a TSB issue.
Dec 2009 85000 mi US $230	Glove box helper positon failed causing glove box door to break.
Oct 2014 138300 mi US $200	fuel pressure regulator fault. replaced fpr and all is good again

Audi A4 in Missouri, United States - Jun 2007
Jun 2007 5000 mi	5k Service Replace Odometer (under warranty

Audi A4 in Georgia, United States May 2009 - Dec 2009
Apr 2009 13000 mi	Check Engine light - Audi replaced an intake flap under warranty

Audi A4 in New York, United States Mar 2008 - Sep 2017
Jan 2011 204000 mi US $400	Engine mounts replaced
Jan 2012 93000 mi US $400	airflow mass sensor and vacuum (ECC?) valve
Oct 2014 198200 mi US $1500	Turbo underboost. Must be replaced. Debugged for all possibilities of Intake sensor or pressure valve. Replaced upper control arms, mounts and shocks. Must replace the lower control arms too eventually. All from the front.
Sep 2015 224000 mi US $500	Turbocharger leak Vacuum system in fuel
Dec 2016 261000 mi US $650	Oil leak at oil filter base
Sep 2017 283000 mi US $500	Alternator failure

Audi A4 in Massachusetts, United States Jul 2010 - Nov 2014
Dec 2012 85000 mi	Turbo bypass valve noisy.
Apr 2013 90600 mi	The following Service Bulletions were performed at 71,226 miles: (1)Replaced Intake Flap Motor. (2) Replaced Fuel Pressure Sensor. (3) Replaced Pressure Control Valve and Breather Pipe. Oil Consumption Test determined car is consuming 0.81 quarts of oil every 1000 miles. Parts ordered.
May 2013 92281 mi	Replaced Piston Rings. Replaced Piston Rings.
Jun 2013 93332 mi US $85	My oil level was down over 1/2 a quart at 1K with new rings. And it was still bogging and blowing a plume of smoke. Valve cover crack discovered causing oil to be sucked into turbo and burned through exhaust. Update: 5K miles - not a drop used! :) My oil level was down over 1/2 a quart at 1K with new rings. And it was still bogging and blowing a plume of smoke. Valve cover crack discovered causing oil to be sucked into turbo and burned through exhaust. 5K miles - not a drop used! :)
Aug 2013 95832 mi US $216	No Cruise Control - Dealer replaced Clutch Vacuum Vent Valve Switch.
Sep 2014 115000 mi US $600	Power steering hose blew. Dealer only parts not in stock and had to wait for delivery! In/Out hoses cost $200 each.
Nov 2014 115000 mi US $350	Coolant leak at flange behind engine

Audi A4 in Ohio, United States May 2010 - Jan 2018
Jul 2012 78500 mi US $600	Turbo cutoff valve replaced. Will have to return to dealer for further troubleshooting.
Jun 2013 88000 mi	Check engine light and drivability impacted. TSB for cam shaft failure / replacement. Repair would have been over $2500 covered by AoA. Bulletin SB090111.
Dec 2016 143000 mi US $3500	Something with the cam
Dec 2017 148000 mi US $6000	Complete engine replacement with a used engine. 2.0T totally failed during normal driving and had metal shavings in the oil.
Jan 2018 149000 mi	Turbo failed 3 weeks after engine was replaced

Audi A4 in California, United States Apr 2008 - Dec 2016
Dec 2010 45000 mi US $190	Some ventilation crank's diaphram was dead, so the engine could not get enough air.
Jun 2013 61000 mi US $200	Spark plugs misfiring, needed new ones.

Audi A4 in Minnesota, United States Jun 2009 - Sep 2011
Jul 2010 41700 mi	Broken Glove Box Hinge
Sep 2010 43000 mi US $400	Rattle coming from the rear doors. Weatherstripping lubed. Problem fixed.
Dec 2010 47000 mi	PCV valve failed.
Jan 2011 37000 mi	Belt tensioner was whistling when cold.

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Audi A4 in Sweden Apr 2015 - Jun 2017
Jun 2016 79360 mi $200	Rear left door frame repainted due to rust bubbles emerging under the paint by the rain channels. Dealer covered 75 % of the cost under Audi corrosion warranty.
Aug 2016 80600 mi $150	Rust on right rear Wheel arch. Sanded down and repainted (only the small rusted area).
Oct 2016 84320 mi $200	Front inner fenders sanded and resprayed due to rust.

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Audi A4 in California, United States Feb 2007 - Sep 2011
Aug 2007 7000 mi	The Nav unit CD Drive would not eject.
Jan 2009 23000 mi	Fuel Pressure sensor failed.
Jun 2011 46000 mi US $152	AC Freon Recharge.

Audi A4 in Illinois, United States Jun 2010 - Jun 2018
Jul 2010 20000 mi	Problem 1 of 2: Memory seats not working; switch broken. Problem 2 of 2: CD changer did not work. Switch replaced CD changer replaced
Aug 2010 22000 mi	Power window switch on driver door controlling rear passenger window would not "express down."
Jan 2011 28000 mi	Car was running rough upon initial start up in cold weather. Re-flash causes engine to initially run richer. Problem no longer experienced. Received dipped left headlight warning light. Drivers' side light flickered, then went out. Experienced it for a total of 4 days but has yet to repeat. Told that headlamps are not covered under CPO warranty. Decide not to fix.
Aug 2011 35000 mi US $50	Oil leaking onto garage floor. Identified as bad cam seal. Seal replaced. Driver door rattle. Could hear and replicate but lubing window seals did not work. Offered to keep car another day or two to resolve but opted not to leave car. Will address at next CPO visit.
Oct 2011 38300 mi	CEL reading claimed multiple cylinder misfires. Could be carbon build up problem or fouled spark plugs. Told to add octane booster once per month for next two months. CEL reset.
Dec 2011 40000 mi	Car was hesitating/missing under throttle. I was told that the plugs needed to be replaced (only 16K on them). Since they replaced plugs under scheduled maintenance, no charge. I speculate could be faulty coil packs & plan 2 ask them about.
Jun 2012 47000 mi	Fan making whirring noise from passenger side during entire trips periodically. Told could not replicate except during start up.
Aug 2012 49000 mi	Fan making whirring noise from passenger side during entire trips periodically. Blower fan replaced. Rattle coming from driver door towards back. Window regulator replaced (wires rubbing).
Sep 2015 92000 mi US $112	CEL with P2006 & P2007 codes. Forums advised was vacuum leak & to check the vacuum tubes running across the engine to driver side. Unable to find broken tube. Shop replaced vacuum tube running across back of engine.
Apr 2016 99000 mi US $13	Trunk not opening without inserting key into trunk lock. Messages indicating both rear fogs & license plate light out. Cut into upper part of wire harness from car to trunk lid,repaired brown (ground) wire,sealed with silicone then duct tape
Nov 2016 107800 mi US $7	Passenger seatback separated from seat at top. Used e6000 adhesive to glue velcro to top of seat and seatback then connect.
May 2017 113447 mi US $1237	Cam solenoid seal replacement Valve cover gasket replacement (both banks) Front upper control arm replacement
Jul 2017 115505 mi US $106	Diagnose clunk in middle to front of car when turning and starting to drive after reverse plus shhsh, shhsh, noise from rear passenger wheel. Found pinch bolt on front control arms not secure; they tightened them but sound remains. Speculated rear wheel sound was emergency brake was dragging on rotor.

Audi A4 in Virginia, United States Apr 2013 - Nov 2020
May 2014 63000 mi US $323	Removed & replaced faulty fuel pressure sender

Audi A4 in New Jersey, United States Jun 2010 - Jun 2011
Jul 2010 22000 mi	The air bag sensor was sending a bad signal which caused the flashers to go on at random times. The air bag sensor was replaced and the problem is now solved.

Audi A4 in Maine, United States Jun 2007 - Feb 2013
Jul 2007 14000 mi	faded wheel center caps and 15,000 mile service

Audi A4 in Florida, United States Dec 2010 - Aug 2011
Jun 2011 50000 mi	replaced 2 engine mounts that were leaking fluids 2 engine fault light that related to vacuum hose issues; these repairs would have been $1,600 without the warranty
Aug 2011 50000 mi	engine light back on when sold

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Audi A4 in Massachusetts, United States Feb 2015 - Sep 2018
Apr 2015 93800 mi US $400	serpentine system was replaced -- belt was nearly shredded and tensioners were gone.
Jun 2017 140000 mi US $1000	brakes front and rear

Audi A4 in California, United States Aug 2008 - Aug 2014
Sep 2013 44000 mi US $155	epc light comes on after engine is warm, dealer scan shows cold misfire code. i am given 2 bottles of G17 gas additive. engine starts easier, but epc light still comes on after engine warm.
Feb 2014 46000 mi US $560	epc and check engine lights on, cruise control inoperative. Replaced clutch switches and now it all works
Mar 2014 46000 mi US $500	valve covers replaced
Jul 2014 47200 mi US $2300	carbon build up on intake system

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Audi A4 in California, United States May 2007 - Jun 2022
Oct 2007 100 mi	Power steering pump repaired under warranty
Oct 2009 22000 mi	Replaced coilpack under warranty Internal short in center brake light LED bar caused intermittent brake light failure Loose screw in convertible top trim
Feb 2011 32000 mi	Valve cover and oil cap gaskets were leaking, so they were replaced Burning oil under boost, replaced PCV valve, valve cover gasket, oil fill cap gasket
May 2011 35000 mi	Intake manifold flap motor replaced due to CEL codes Convertible top frame sensor faulty causing warning light, but replacement not in stock
Jun 2011 35000 mi	Sensor replaced CD player would skip, displayed "SERVICE" on the screen, new unit ordered
Jul 2011 35500 mi	Radio was replaced to fix CD player functionality
Sep 2011 38000 mi	Pixels in new radio aren't fully illuminated. Checked out at dealership, and new radio ordered.
Oct 2011 38500 mi	Radio with bad pixels replaced with new one
May 2013 54300 mi US $120	Inner CV boot tore, joint needed to be replaced, replaced driveshaft with remanufactured
Dec 2013 62000 mi US $90	Driver side hydraulic motor mount had leaked, replaced with aftermarket solid mount
Feb 2014 63700 mi US $40	Driver side inner CV boot tore, joint was still good
May 2015 79700 mi US $300	CVT control module had a failing gear position sensor. The shop replaced the control module under my extended warranty.
Nov 2015 85700 mi US $200	Two coil packs failed, I had all four replaced
Jul 2016 92700 mi	CEL due from coolant system, shop recommends replacing thermostat and temperature sensor
Sep 2017 106000 mi US $1000	Replace control arms, due to joints starting to show wear Replace failed thermostat (was stuck open)
Dec 2017 108000 mi US $900	Low pressure fuel sensor on high pressure fuel pump was replaced, due to check engine light and fuel cuts/stalling at low RPM right side motor mount was found leaking, and was replaced with solid rubber aftermarket mount
Mar 2018 111000 mi US $700	Replaced worn out front shock mounts and mount brackets

Audi A4 in Missouri, United States Feb 2011 - Oct 2014
May 2011 36000 mi US $60	Just a tail light. My mechanic did do a search for recalls and found one for a minor engine bug. Will have it replaced on next regular maintenance visit.
Oct 2012 46200 mi	Back in the shop for convertible top. Faulty switch. Replaced switch and top works. Covered under extended warranty. Billed to warranty company: $348.00
Dec 2012 47000 mi	Convertible top retracts but does not revert to closed. Had similar problem previously. Dealer replaced switch on previous trip. This time they replaced convertible top motor.
Jul 2013 50300 mi	Convertible top has begun to separate from the back window. Will need to either have it repaired with glue, buy an after market top or buy a full replacement top. I think I am going to go with the glue option.
Jun 2014 55000 mi	Fuse light keeps coming on for brake light but brake light appears to be working.

Audi A4 in Oregon, United States Mar 2010 - Feb 2012
Jun 2010 29000 mi	Replaced the passenger side door trim - audi defect and replaced under warranty.
Sep 2010 30000 mi	30K maintenance plus an attempt to fix the passenger door trip that keeps coming apart. Ordered a whole new door panel to be installed at a latter date.
Dec 2010 33000 mi	Excessive oil consumption of approx. 1 quart every 1000 to 1500 miles. Audi dealer says this is within spec. Noticing blue smoke from tailpipes and excessive carbon build-up. Dealer gave me spare quart for trunk. Horrible service.
Feb 2012 45000 mi	High Pressure Fuel Pump Failed. Known issue covered under Audi's extended warranty for that part.

Audi A4 in Great Britain Jan 2010 - Jun 2012
Feb 2011 30000 mi £1000	Unable to start. Initially told failed camshaft sensor, subsequently melted ignition coil. Billed for both.
Apr 2011 31000 mi £1000	Further ignition coils failed
Jun 2012 34000 mi	automatic gearbox failure

Audi A4 in California, United States Mar 2010 - Apr 2019
Apr 2010 34500 mi US $512	Replaced cracked intercooler. Replaced rear main seal. Replace rear main seal-warranty Replaced cracked intercooler
Jun 2013 47000 mi US $446	Thermostat stuck open, making engine run too cool. Thermostat replaced and problem solved. on most cars, this would be a minor repair, but there's 2.5 hours labor to get to the thermostat on an Audi.
Dec 2015 62000 mi US $330	Convertible top sensor bad. Top would stop during opening, or refuse to close. Sensor replaced fixing problem Water pump leaking from gasket. Improper seating of gasket when timing belt changed. Water pump removed, gasket surfaces reconditioned, gasket and water pump replaced
May 2016 63000 mi US $265	Center taillight had been failing intermittently, and was finally off more than 60% of the time. Center light replaced $175 parts, rest labor.
Jun 2017 69000 mi US $430	Leaking diverter valve (torn diaphragm). Replaced with new diverter valve.
Dec 2017 72000 mi US $1500	Motor mounts worn and leaking. Both mounts replaced Radiator overflow tank cracked, with slight leak Severe vibration of serpentine belt tensioner and belt. Diagnosis was that tensioner failed, and belt ruined by vibration. Tensioner and belt replaced.
Jan 2018 73000 mi US $501	Vibration again noted in engine. Overrun pulley on alternator seized, pulley replaced
Dec 2018 77000 mi US $289	Convertible top began having difficulties opening and closing. Got estimate from dealer for $4700 for repair, similar estimate from independent mechanic. After researching, i determined that probable cause was the electric motor that drives the hydraulics that open and close the top. I disassembled the convertible top mechanism, removed and disassembled the motor, verified carbon arcing on the commutator. Ordered and installed new Audi motor.

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Audi A4 in Missouri, United States Oct 2010 - Nov 2021
Feb 2011 22000 mi US $400	Windshield washer leak
Jul 2011 25000 mi US $400	Vacuum leak PCV replaced
May 2015 68400 mi US $200	Temperature sensor
Sep 2015 72000 mi US $350	New thermostat
Mar 2016 77000 mi US $450	Sensor error, replaced.
Jun 2017 92000 mi US $1100	Ignition switch and relay.
Dec 2017 94000 mi US $150	Battery and cable ends
Mar 2018 97000 mi US $2000	motor mounts

Audi A4 in Indiana, United States Dec 2009 - Mar 2012
Oct 2010 32000 mi	Hinges on console arm rest cover broke, cover replaced under warranty. Told this was a common problem.
Jul 2011 37700 mi	rear window would not go down all the way, unplugged the window motor, plugged back in, problem resolved
Mar 2012 45000 mi	Check engine light was on, sensor and tube for the turbo was replaced.

Audi A4 in Iowa, United States May 2010 - Jun 2011
Jun 2010 15000 mi	Rear differential on Quattro model failed and car was inoperable. Fixed under factory warranty.

Audi A4 in Oklahoma, United States Jan 2009 - May 2011
Mar 2009 31000 mi	Side marker (seal was corroded) light replaced under warranty.
Apr 2009 31000 mi	replace valve cover gasket under warranty
Jul 2009 35000 mi US $11	failed turn signal, wires tightened and bulb replaced.
Mar 2011 56000 mi US $400	replace valve on turbo

Audi A4 in Illinois, United States Mar 2011 - Apr 2011
Apr 2011 19000 mi	Rear passenger seatbelt not functioning properly - tensioner.

Audi A4 in Ohio, United States Feb 2011 - Jun 2018
Mar 2011 26000 mi	Check engine light. Repair to Emissions module Plastic centerpice to wheels peeling-was replaced
Dec 2011 35000 mi US $500	passenger power seat control burned up
Oct 2015 55000 mi	heated seats went out
Jul 2016 57300 mi	oil leak
Dec 2016 61000 mi US $300	oil leak was repaired
Sep 2017 65000 mi US $540	Warning light

Audi A4 in New Hampshire, United States Jan 2010 - Jan 2017
Feb 2010 17000 mi	Top is supposed to be lowered with key in door but had not been programmed properly. Dealer attached scan tool and programmed it. No cost.
Jan 2012 51000 mi	Stuck valve of some kind that caused the car to run roughly. Engine light came on as well.
Sep 2012 61000 mi US $500	Car was bucking at highway speeds.
Jul 2013 77000 mi US $2200	Bearings/bushings issues causes misalignment chopping 2 year old tires and requiring needing all new tires.
Jan 2015 88000 mi US $200	Airbag light was on. Dealership redid connection in passenger seatbelt. Airbag light is back on already.
Oct 2016 103000 mi US $1000	Replaced part of exhaust system. Replaced faulty rear passenger seatbelt ignitor.
Jan 2017 65000 mi US $650	Carbon build up, fouled plugs and coil pack

Audi A4 in Florida, United States Apr 2010 - Jun 2012
Sep 2010 33000 mi	PCV replacment to updated version
Dec 2010 35000 mi US $200	Failed DC replaced with OEM piston type and installed PCV fix (Eurojet). Latter is basically an additional check valve that can handle higher boost peaks.
Sep 2011 43000 mi	PCV replaced again with latest revission
May 2012 46600 mi US $85	Fabric roof replacement

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Audi S4 in New York, United States Jun 2009 - Mar 2010
Jul 2009 27000 mi	breather valve went bad

Audi A4 in Michigan, United States Dec 2010 - Mar 2011
Jan 2011 31000 mi US $3725	Had extreme difficulty shifting into 1st and rev. They told me it was a complete clutch assembly at 31k miles. The clutch is NOT burned and except for extreme wear, in excellent shape. Discussed coverage with Audi, they refused to provide any. Not happy.

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Audi A4 in Hawaii, United States Dec 2013 - Feb 2014
Feb 2014 59000 mi	continuous leakage of oil into the cooling system

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Audi A4 in Idaho, United States Oct 2011 - Jul 2014
Nov 2011 80000 mi US $70	diverter valve allowing boost to escape
Apr 2012 86000 mi US $15	Dealer recall/extended warranty PCV Valve intake motor and thrust sensor replaced 15 dollars for loaner Replaced Front driver side bearing

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Audi A4 in Texas, United States Dec 2006 - Dec 2007

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Audi A4 in Missouri, United States Jan 2017 - Apr 2017
Jan 2017 70000 mi US $150	valve cleaning needed. declined to have repair done as cost is $900+. the 150 paid is for diagnostics. computer module that controls the motorized convertible top is no longer functioning or serviceable

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Audi S4 in Ontario, Canada Nov 2009 - Aug 2012
Jul 2011 68200 mi	Worn suspension bushings. Engine is beginning to burn oil. 1 litre / quart every 1,500 kms
Feb 2012 71880 mi C $400	Window stopped going up and down
Apr 2012 72540 mi	Serpentine belt frayed. Changed because would fail in next few months.

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Audi A4 in New York, United States Jul 2009 - Jun 2022
Sep 2009 73000 mi	One of the switches controlling Cruise Control broke. It was fixed while at the body shop, getting repaired after a collision with a deer. The insurance company picked up the tab. I paid the deductible only.
May 2011 97300 mi US $2000	Fuel pump and turbo bypass valve faulty. All but $250 covered by Geico plan. Motor mounts on both sides. All but $250 covered by Geico plan.
Jun 2011 99000 mi	Center wheel caps peeling, exposing plastic. Dealer blamed harsh detergents at car washes. Upon checking online, it seemed too many people were using "lethal" detergents at car washes. I contacted AoA and they authorized a free replacement.
Aug 2011 100000 mi US $1500	Car stopped accelerating on the highway. Towed to a nearest dealer for $120. Spark plugs replaced and injectors cleaned for $525. Prior to this, front brake pads and rotors replaced, second time within 1 year.
Jul 2012 114800 mi US $400	Replaced the part which attaches the oil filter to the engine block. Also had maintenance done (over $300 for a check up) and 3 recalls. Check engine light was on when scheduled the servivce, but it went off by itself. The final charge was over $700.
Sep 2012 118000 mi US $20	My mechanic switched coils and reset the Check Engine light. So far it hasn't turned on.
Nov 2012 120000 mi US $400	Dealer replaced the clutch switch.
Dec 2012 121000 mi US $190	Well, it's the same Check Engine light issue. 2 trips to the dealer and it hasn't been fixed. Getting ready to call the dealer today for the 3rd appointment. My wallet is getting too light! Also broken glove box door hinge and armrest latch.
Jan 2013 123000 mi US $90	3rd attempt to cure the Check Engine light. Mechanic tested compression. All was fine. The light stays.
Jul 2013 130000 mi US $20	Loud squeak coming from the rear. A dust shield was bent and rubbing against the rotor.
Aug 2013 131000 mi US $70	Brake pads didn't disengage fully. Kept rubbing against the rotor and making noise. System was cleaned and lubed. Right side front window mechanism (regulator) stopped functioning.
Feb 2014 139200 mi US $330	Misfires in multiple cylinders. All coils replaced by the dealer.
Dec 2014 151000 mi US $2130	Oil leaks
May 2015 153600 mi US $700	Additional oil leaks. Gaskets replaced. Vacuum pump replaced.
Nov 2015 165000 mi US $30	I replaced the N80 evap purge valve.
Sep 2017 165000 mi US $1000	Cooling system leak, two spots around the engine.
Jun 2022 189000 mi US $286	Some part of fuel system held by 3 screws got unbolted. 2 bolts were recovered from the top of skid plate. One bolt had to be ordered. Mechanic suspected a previous shop in sloppy workmanship.

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Audi A4 in Ohio, United States Jan 2007 - Aug 2009
Jul 2008 20000 mi	Oil from CCV or EGR due to pressure sensor failure in the EGR system-or so they say.
Jun 2009 32000 mi	Locking door button in the back seat was pushed through the glove box and had to be pulled out and reset in the track.

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Audi A4 in Ontario, Canada Apr 2016 - Jun 2016
Jun 2016 155000 mi	The ball in the Linkage got messed up, making me unable to put the car into reverse.

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Audi S4 in New Jersey, United States Jan 2009 - Mar 2010
Jul 2009 18000 mi	Also, noted problem with door lock button, shop says "could not duplicate," no action taken.

Audi S4 in New York, United States Dec 2008 - Mar 2012
Mar 2012 69000 mi US $190	Driver door window regulator failed, could not close window. Dealership said it would take all day to fix, bought part and did it myself.

Audi S4 in British Columbia, Canada Jul 2007 - May 2009
Jan 2008 23560 mi	BURNING A LOT OF OIL, DEALER WANTS TO CHANGE OIL AND WEIGH IT AND THEN TAKE OIL OUT AFTER 1000KMS AND REWEIGH TO DETERMINE HOW MUCH OIL IS BEING BURNED.
Apr 2008 25420 mi	Part 2 of an oil consumption test to determine how much oil is being consumed.

Audi S4 in California, United States Mar 2009 - Nov 2015
Mar 2009 46796 mi US $175	front turn signal wasn't working. Had socket and bulb replaced.
Apr 2009 47000 mi US $175	front turn signal was out. Bulb and socket replaced.
Jun 2010 57000 mi	clicking noise coming from front of car, ended up being subframe weld problem. Subframe replaced but doing so required alignment (only bit not covered by the warranty). front wheel bearing replaced
Nov 2010 61000 mi	gas door wouldn't stay closed, replaced actuator gas door wouldn't stay closed, replaced actuator
Apr 2012 77000 mi US $2000	dying fuel pump
May 2014 105000 mi	two driving lights were burned out, took over ten minutes window lock broke
Nov 2015 122000 mi	leaky gasket

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Audi S4 in California, United States Nov 2012 - Feb 2020
Jan 2013 80000 mi US $700	Replaced both worn upper control arm bushings (common repair as these cars age) Replaced cracked coolant overflow reservoir
Jul 2016 97200 mi	Low tone horn wire disconnected, reconnected at no charge
Aug 2016 98000 mi US $315	Upper coolant hose had small leak, replaced hose
Dec 2017 103000 mi US $350	Replaced failing left front wheel bearing

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Audi S4 in New Jersey, United States Feb 2011 - Mar 2013
Dec 2011 63000 mi US $90	Control arm
Dec 2012 70000 mi	Control arm passenger

Audi S4 in Washington, United States - Jan 2010
Jan 2010 60000 mi US $90	Passenger side headlight washer cover came off. $30 for part + $60 paint/installation.

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Audi S4 in Nevada, United States Feb 2009 - Sep 2015
Nov 2009 24000 mi US $3500	Clutch replacement: Blew the clutch due to a missed shift. Clutch became solid link, with shift lever in neutral car ran fine. No other problems. Impressed by transmissions integrity.
Feb 2013 57800 mi US $1700	Serpentine belt was cracked and showing wear (replaced). Front rubber suspension bushings cracked (replaced).
Sep 2015 79000 mi US $200	There are drain tubes in the roof that were clogged. This was causing a leak into the cabin. These drain tubes had to be blown out, which is a service my dealership should have been proving, but wasn't.

Audi S4 in California, United States Apr 2011 - Dec 2015
Jul 2014 85700 mi US $155	Power steering pump leaked out & had to be replaced. Low on freon. Dealer added dye will be back in August to check for leaks.

Audi S4 in Illinois, United States Nov 2010 - Jun 2022
Mar 2011 30000 mi	Drawer under passenger front seat opens when stopping and closes when accelerating. This is second failure of repair.
May 2011 32000 mi US $80	Drawer under passenger seat will not stay shut. Third failed attempt at repair. Due to my schedule another repair has not yet been attempted.
Jun 2012 34000 mi	Passenger seat drawer doesn't latch,
Mar 2014 35000 mi US $288	Exhaust pipe brackets failed.

Audi S4 in Pennsylvania, United States Aug 2010 - Dec 2015
Nov 2012 94800 mi US $440	Replaced passenger window regulator
Dec 2012 96000 mi US $1800	Relined clutch Valve cover gasket replacement
Sep 2013 105000 mi US $85	HID headlights go bad far too often. Replace right dipping light. Most of the work is getting the airbox out of the way.
Jan 2014 111000 mi US $1050	Fuel pump failed. Something was making strange noises for a month or so. Determined it was the fuel pump after it failed. Car is quiet now.
Oct 2014 121000 mi US $320	Changed PCV due to high oil usage (no leaks or exhaust smell??) Tires, and wheel alighnment. Alignment only slightly out since car was manufactured.
Feb 2015 126000 mi US $1700	Window mechanism frozen. Coolant hose leaking Fuel pump squealing
Oct 2015 134000 mi US $350	Tie rod worn causing tires to begin cupping. Had no apparent impact on drivability otherwise.
Dec 2015 135000 mi US $100	Display showed coolant level low. Level OK but thermostat was stuck partially open. Replaced

Audi S4 in New Jersey, United States Oct 2010 - Oct 2015
Oct 2012 83700 mi US $600	Broken serpentine belt.

Audi S4 in California, United States Jul 2010 - Dec 2011
Dec 2011 74000 mi	rear window child lockout switch; unrepaired (passed on part to new owner)

Audi S4 in Colorado, United States Apr 2012 - Mar 2013
Feb 2013 54000 mi US $160	CD Changer failed. Had to be replaced.

Audi S4 in Washington, United States Dec 2015 - Apr 2016
Jan 2016 US $4200	Cam adjusters failed

Audi S4 in Virginia, United States Sep 2016 - Jun 2018
Jun 2017 126000 mi US $180	Replaced all spark plugs, air filter, two coil packs, and a PCV container / valve assembly.
Jun 2018 128000 mi US $350	Replaced serpentine belt. Replaced manual belt tensioner and idler pulley with automatic tensioner conversion from JHM. Replaced the snub nose bushing. Replaced spark plugs.

Audi S4 in Colorado, United States Oct 2015 - Dec 2015
Dec 2015 83000 mi US $100	Drivers side Driving Light Bulb harness was shorting out due to wear on the wiring sheath.

Audi S4 in Massachusetts, United States Nov 2008 - Jan 2013
May 2009 35000 mi	Squeak in driver's seat.
Dec 2009 43000 mi	Trunk latch mechanism failed and was replaced.
Oct 2010 55000 mi US $1800	Power steering failed. Power steering pump and steering rack replaced.
Sep 2012 75000 mi US $125	This model has a history of headlight flickering and headlight outages. Sometimes headlight bulb replacement fixes it, sometimes the ballast or other electrical parts need to be replaced. In this case, replacing the bulbs fixed it for now.

Audi S4 in California, United States Mar 2010 - Jun 2011
Dec 2010 77000 mi	Ignition coils failed, replace under factory campaign they were paid by Audi $138. Also notified me that the serpentine belt was cracked and needed replacement and front suspension bushing was cracked. They wanted $1200. I bought the belt.

Audi S4 in Oregon, United States Jun 2012 - Aug 2012
Jul 2012 49000 mi US $384	valve gaskets beginning to mildly seep

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Audi S4 in New Jersey, United States Sep 2010 - Sep 2011
Jan 2011 48400 mi	Retightened Allen Bolts for Cabriolet Roof Closure. Need to do this about every 3 months
Sep 2011 56000 mi US $100	Starter intermittently stopped working. Replaced under copo warranty with $100 deducatable

Audi S4 in Maryland, United States Feb 2012 - Oct 2015
Mar 2012 49000 mi	Fuel pump / Fuel filter
Jul 2012 53000 mi US $214	Took car in for regular 5K oil / filter change and to reset auto locking/unlocking of doors, but discovered that Upper control arm bushings are failing and will cost $1375.00 to replace
Dec 2012 59000 mi US $394	Failure of Front Upper and Rear Control Arms. $ replaced Defective Serpentine Belt
Apr 2013 63500 mi US $1400	CV boot tearing, needed replacement Valve cover gasket leaking x 2 Serpentine belt pulley got stuck, shredded belt partially, but could be freed / lubricated.
Aug 2013 67700 mi	Failed left front lower / forward control arm
Jan 2014 61500 mi	Failure of engine mount material Right side auxiliary radiator leaking / failed Lower Radiator hose leaking
Mar 2015 76000 mi US $100	Oil filter flange was leaking
Oct 2015 93000 mi US $165	Ground strap was coming apart from starter and starter had to be replaced Serpentine belt tensioner failure

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Audi S4 in New Jersey, United States Nov 2010 - Sep 2017
Jan 2011 23000 mi	Ignition coil replaced under notice
Sep 2011 31000 mi US $600	Engine mount replacement
Dec 2012 57000 mi US $1600	Clutch replacement and brake replacement
Jan 2013 78000 mi US $250	Wheel bearing, control arms and sway bar replacement/repair
Dec 2013 80000 mi US $2000	replace radio and gps system
Aug 2014 89000 mi US $950	cruise control not working
Oct 2014 90000 mi	Engine oil light would come on in between service visits. Extended warranty doesn't cover diagnostic costs, with dealer decided step 2 of test unnecessary.
Nov 2016 123000 mi US $2000	coolant tank replaced, hoses replaced
Aug 2017 135000 mi US $2000	engine mounts replaced

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Audi A4 in Tennessee, United States Aug 2014 - Jul 2018
Oct 2014 103000 mi US $65	Replaced spark plugs and cylinder 1 ignition coil
Jan 2016 128000 mi US $90	Engine light, cooling system. Failed injector coil pack
Oct 2017 160000 mi US $30	Replaced purge valve
Nov 2017 162000 mi US $35	Failed Ignition Coilpack
Jan 2018 167000 mi US $1475	Valve cover seals, front crankshaft seal, camshaft seal, timing belt and water pump. Refill coolant, oil and filter change.

Audi A4 in Finland Feb 2008 - Mar 2010
Mar 2008 32240 mi	During the winter there was a strange noise coming from the motor when idle. Was told by the repair that is nothing dangerous and can be fixed in the next 60.000km repair. Had however some problems with the warranty since it was expired one (1!!!) day ...
Jun 2009 54560 mi €500	Wrong spark plugs installed in the shop. Caused one or more coil packs to fail and eventually also the motor management fuse. Misfire and a broken cat.
Jan 2010 66340 mi €750	PCV valve replaced due to CEL + unstable idle. Problem fixed.

Audi A4 in Illinois, United States Apr 2009 - Oct 2010
Aug 2009 64000 mi US $85	noise from HVAC system, replaced vent flapper motor, covered by a TSB Sluggish acceleration, fixed with software reflash
Feb 2010 69200 mi US $85	Evaporative System valve replaced
Jun 2010 75000 mi US $85	A/C does not adequately cool vehicle. Navigation / Head unit Cd player inoperative, replaced entire unit. Xenon headlamps flicker randomly, shut off occasionally.
Sep 2010 77000 mi US $85	Fuel pump replaced for second time! Headlight failure not fixed - problem is found on ALL internet forums as well as NHTSA website, but dealer claimed, for the fourth time, they could not duplicate.
Oct 2010 77000 mi	Sold with headlight problem not resolved.

Audi A4 in California, United States Jul 2009 - Jun 2011
Dec 2009 60000 mi US $120	Wiring harness for turn signal needed to be replaced

Audi A4 in British Columbia, Canada May 2016 - May 2019
Jul 2018 95480 mi C $350	Replaced front ROTORs and PADs. Pads had 6mm material left, but brakes pulsated. Rotors were worn unevenly. Suspect that car dealer where vehicle was purchased 2 years ago replaced pads only without replacing the rotors (which wear out together in every VW/Audi built in the last couple decades, and need to be replaced together)
Aug 2018 99200 mi C $390	Replaced passenger side XENON HID BULB of type D1S. Bought for $99.99 @ Canadian Tire. Because low-beam was burnt out. Original said "Philips". Replacement came in a Sylvania box, but lamp is OSRAM. Is so identical to Philips that I'm sure that both came out of the same factory. The window regulator was shot, as indicated by "crunchy sounds" when operating the power window. rnThe regulator for the Audi includes the entire window frame, mechanism, stainless-steel cables, and plastic pulleys. rnThe parts are pricey (CAD$341 from Audi -- there are no cheap Chinese knock-offs) but labour is very low, because its all one, pre-assembled unit. rnKelly and team at Sun Creek did it for around $400 plus tax. rnAt an Audi dealership it would have been double that price.

Audi A4 in California, United States Sep 2009 - Dec 2011
Dec 2009 58000 mi US $450	Both engine mounts damaged. One is collapsed, the other is leaking. Certification hassle with my shady dealer.
Feb 2010 60300 mi US $85	Broken engine mounts replaced by another, more conscientious dealer. Dealer broke my Headlight Range Control Module after finishing work on my broken engine mounts.

Audi A4 in New South Wales, Australia May 2010 - Oct 2012
Nov 2010 49620 mi A $947	Rocker cam cover gasket leak and air leak causing missing repaired. New coil packs replaced for free under service measure 28E9 and 23D6 campaign.
Jul 2012 77900 mi A $3000	Fuel pump cam follower failed damaging the cam shaft

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Audi A4 in Texas, United States Mar 2009 - Dec 2017
May 2009 40000 mi	Headlight was flickering and going out. Dealership replaced bulb because of TSB.
Jan 2012 73000 mi US $2200	Clutch was replaced. CV boot leaking grease.
Dec 2017 180000 mi US $1000	Rear timing chain broke and needed replacement.

Audi A4 in Colorado, United States Dec 2006 - Oct 2013
Jul 2012 70700 mi US $450	Master slave cylinder needed to be replaced
Nov 2012 75100 mi US $150	Rear wiper mechanism fell apart.
Feb 2013 77700 mi US $800	Losing fuel pressure causing the check engine light to come on.

Audi A4 in British Columbia, Canada Feb 2016 - Mar 2016
Mar 2016 81220 mi	Rear right tail light assembly - shorted wiring causing lights to not work

Audi A4 in Washington, United States Apr 2009 - Mar 2014
Jul 2009 33500 mi	Front wheel bearings started producing "click" noise at speed, dealer replaced both wheel bearings under warranty.
Aug 2010 46000 mi US $216	Car sputters constantly near 1K RPM. Pressure Regulator Valve, Gasket, and Breather tube (vent hose) replaced. 1hr labor, $109 in parts.
Mar 2011 53000 mi US $400	Cam follower on fuel pump was worn, replaced by indi shop. Cam shaft also shown wear, not yet replaced, waiting for Audi response.

Audi A4 in New York, United States May 2013 - Jun 2022
Mar 2014 64000 mi US $3115	Low Oil Pressure in cold temperatures (<10F), ignored warning indicator. Towed. Long block replaced. I think it was caused by ice crystals forming on the oil pickup screen. Audi has a TSB, 170825 (issued 11/21/2008). They revised the oil pump intake pipe.
Aug 2016 88000 mi US $120	Drivers side front wheel bearing replaced
May 2017 95505 mi US $20	Center muffler hanger broke from muffler, added stress to rusting midpipe clamp and clamp eventually failed. Replaced clamp, repaired exhaust hanger
Dec 2017 102000 mi US $560	Washer fluid sensor and pump replaced by dealer. Had sensor issues due to Rain-X; also had the oil sensor re-wired due to DIS showing an issue with the sensor- dealer diagnosed wiring issue and replaced at no charge; dealer replaced headlight bolt due to user error (lost the retaining clip)
May 2018 106400 mi US $185	Rear caliper was sticking, pins were cleaned/greased, piston retracted. Symptoms persisted, caliper replaced.
Sep 2021 131000 mi US $900	Mid muffler pipe rotted. replaced with aftermarket full SS as it was roughly the same price as OEM mid muffler parts.
Apr 2022 135000 mi US $400	Front passenger side wheel bearing needed to be replaced

Audi A4 in Ontario, Canada Sep 2013 - May 2017
Nov 2013 124620 mi C $90	Replaced HID Bulb and 2 small lamp sockets
Jan 2015 156240 mi C $4000	Exhaust cam and position sensor
Mar 2015 157480 mi C $600	Replaced DS front Wheel Bearing
May 2015 160480 mi C $500	Replaced passenger side wheel bearing & Oil change
Oct 2015 168920 mi C $389	Passenger Window Regulator
Feb 2016 176600 mi C $50	Bad License Plate lamp assembly

Audi A4 in New York, United States Sep 2007 - Aug 2019
Dec 2007 18000 mi	Check engine light came on, flashing and vehicle running rough. Restarted vehicle, running ok, check engine light on solid. Called dealer and brought it right in. Found loose connection to one of the ignition coils. Problem has not returned.
Sep 2008 33000 mi	Check engine light came on, vehicle ran fine. Made an appointment for next day. Problem found to be electric motor that runs the flapper for variable intake runner. Dealer had part in stock, was replaced on the spot.
Jul 2010 60500 mi US $80	High Pressure Fuel Pump Cam follower replaced. Original one was in bad shape.
Apr 2011 71000 mi US $80	Loss of power at high load. Replaced fuel pressure sensor on high pressure fuel pump. There was a TSB for this part. This lead me to the problem.
Mar 2012 79000 mi	Issues related to high pressure fuel system where fixed. High pressure fuel pump, intake camshaft and fuel pressure sensor were replace. Also replaced intake actuator and PCV valve.
Oct 2014 97200 mi US $350	Replaced timing belt, water pump (still working), thermostat (not working, stuck open), timing belt tensioner, acc belt.
Aug 2015 104600 mi US $130	Front left wheel bearing replaced due to noise.
Jan 2018 120000 mi US $70	Replaced cam timing solenoid because it was leaking oil externally and set a check engine code
Sep 2018 124000 mi US $181	Middle resonator hangers no longer attached to resonator. Replaced with aftermarket direct fit piece that requires a little cutting.

Audi A4 in North Carolina, United States Sep 2015 - May 2017
Mar 2016 126000 mi US $1200	Engine not coming to temperature, needed thermostat replaced.
Jun 2016 127000 mi US $2700	Lost oil pressure in engine. Oil pump failure and chain broke. Part alone was almost $1400. $300 just to diagnose and identify extent of failure. Remainder to handle repair/replacement of new part, fluids, etc...

Audi A4 in Utah, United States Jan 2016 - Sep 2024
Sep 2016 150000 mi US $20	Replaced rear calipers, as the parking brake wasn't operating correctly and had stuck slightly. Slight oil leak from back of engine head. Oil leak appears to have been coming from vacuum pump.
Jun 2017 157000 mi US $240	Replace fuel filter and fuel pump. Fuel filter had never been changed, after changing a CEL came on for too low of duty cycle on fuel pump. It was only because of the filter change, but researched it more and found out how to read the duty cycle in VAGCOM and it was actually reading around 76% at idle. Deciding to preventatively change the pump although it appeared to work fine. New fuel pump is around 50%. I believe the pump had premature wear due to the fuel filter never being changed.
Nov 2017 163000 mi	Cleaned carbon deposits on intake valves. Replaced oil filter housing that leaked in very cold weather.
Sep 2024 203000 mi	Rear sunroof drains leaking a small amount of water into rear cargo ceiling area. Removed rear trim, lowered headliner slightly and applied glue to drains.

Audi A4 in Ontario, Canada Jul 2010 - Sep 2016
Aug 2010 40920 mi C $213	Replace PCV valve and gasket Slow and irregular idle when cold first noticed last winter not fixed by replacing coils (as per recall) No CEL Broken window regulator (driver door). Replaced under extended warranty Camshaft carrier leaking oil. Install new gasket and sealants. ?consequence of previous warranty repair by dealer. Repaired under extended warranty
May 2011 45880 mi C $2200	Camshaft carrier leaking oil. Install new gasket and sealants. ?consequence of previous warranty repair by dealer. Broken window regulator (driver door). Replaced.
Mar 2016 78120 mi C $3400	Clutch and flywheel replacement

Audi A4 in California, United States Sep 2008 - Mar 2014
Jul 2009 46000 mi	door to glove compartment broke, fixed under warranty
Nov 2010 66000 mi US $860	motor controlling valves failed
Dec 2010 68000 mi US $300	Turbo blow off valve replaced
Jan 2011 69000 mi US $180	Short in audio head unit drained battery. Dealer diagnosed bad MMI unit (radio/navigation) and gave 3,400 estimate to replace. I declined and asked them to disconnect unit. Went to independent car stereo store for replacement.

Audi A4 in New York, United States Jun 2017 - Jul 2018
Oct 2017 97000 mi	found and repaired 2 broken electrical connectors in the engine bay. AC has been repaired.

Audi A4 in California, United States Aug 2009 - Mar 2018
Sep 2009 53000 mi US $75	Clutch Pedal Position switch failed, diagnosed and replaced myself
Jul 2014 94000 mi US $400	Driver Door cable snapped inside door, couldn't open door from inside. Cable replaced.
Oct 2014 98000 mi US $98	Boost leak, vacuum line cracked, replaced.
Apr 2017 128000 mi US $500	Sunroof rattle, repair not successful.

Audi A4 in British Columbia, Canada Sep 2016 - Apr 2017
Sep 2016 101060 mi C $500	CV boot was torn

Audi A4 in Minnesota, United States Mar 2011 - Aug 2014
Aug 2013 127000 mi US $1650	Power steering pully loose, took out fan belt. Power steering pump needed to be replaced as well as fan belt
Jan 2014	Heating element burned through the leather seat on driver's side. Report performed by dealer for Audi. Heated seat now disconnected.
Apr 2014 140700 mi	left rear turn signal usually doesn't work. Wiring issue identified. Will cost approximately $700 to fix.
Aug 2014 144000 mi	Electrical issues with heated seat and turn signal never fixed.

Audi A4 in Florida, United States Jun 2008 - Mar 2010
May 2009 53000 mi	I had the cam lobe wear issue dealt with by Audi under warranty. Would have been a $1000 fix I believe. It was in for 3 days in May 2009 for this fix, and I can't say for sure that it has completely been resolved. May need an aftermarket fuel pump.

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Audi A4 in Florida, United States Sep 2008 - Jun 2018
Sep 2010 42000 mi	Headlight has intermittent failure (adaptive HID lights). Occasionally turns itself off, but relights when I turn lights off and on again. Audi shop proposed to replace unrelated part so I declined repair.
Jun 2011 56000 mi US $240	Replaced HID headlamp due to intermittent malfunction. Problem with ignitor, which is integral with bulb for this design.
Jan 2012 64000 mi US $500	xenon headlight bulb exchange due to intermittent failure (prob. related to voltage regulating component integral with bulb). fault code (Check engine light)
Apr 2013 82700 mi US $400	valve cover gasket replaced ignition coil failed, required replacement of coil. A recent recall was issued for this part but I don't live near a dealer so I had it replaced out of pocket.
Feb 2015 108000 mi	repair of glovebox door: door hinge broke when my 6 yo got something out of it, unclear what they might have done to cause this, signs that a crack was developing earlier.
Jan 2016 85300 mi US $900	vacuum pump valve cover gaskets
May 2017 136000 mi US $2000	replaced bushings for suspension members recharge fresh tires

Audi A4 in Washington, United States Jul 2009 - Mar 2010
Dec 2009 41000 mi	Passenger light ballast(?) replaced

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Audi A4 in Ontario, Canada Sep 2015 - Sep 2019
Sep 2015 97340 mi C $400	Dismantled engine to clean carbon and oil deposits on intake valves.
Oct 2015 98340 mi C $200	Defective wheel bearing on the passenger side
Jun 2016 108500 mi	Rear window wiper was not functional due to water leaking into bearing. The wiper motor assembly was removed and modified so oil could be injected into bushing/shaft assembly. The motor was operated until it ran smoothly.
Apr 2017 122760 mi C $250	Front end developed noise over the winter. Worst noise was from driver's side front bearing. Required replacement but took a long time due to seized and corroded fasteners and components. After the drivers side was repaired, it was apparent that the passenger side front was defective as well. Once parts were obtained, that side was replaced.
Jul 2017 122760 mi C $2000	Flex pipe on RHS is broken. Estimated parts cost is $1500 alone plus $500 labour. Yikes. Intake flaps on one bank are stuck closed. Need to dismantle intake assembly to check problem repair-ability, which at the least requires $100 in gaskets, even if nothing is done. Valve cover gaskets are leaking oil again. The leak is bad enough to fill the spark plug wells causing misfires.
Oct 2017 125860 mi C $450	Rear brakes were making a grinding noise. Investigation revealed metal on metal. Rotors and pads were destroyed, so required replacement. Further investigation revealed a defective caliper, which required replacement. Flex hoses to calipers were at end of life so replacement required. Rusted brake lines made repair difficult. E-brake cable was disconnected and had to be reconnected inside car to e-brake handle. Full brake system bleed required to purge air from entire system.
Aug 2018 135160 mi C $450	Front rotors were at wear limit. Replacement required. Front pads were worn unevenly so the decision was taken to replace them. Caliper slides were cleaned an re-lubed as part of the maintenance.
Oct 2018 137020 mi C $400	Defective ballast on the HID light required replacement. To remove the head light assembly, the bumper cover must be removed. Some body work was part of the process when rust was discovered under body panels.

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Audi A4 in California, United States Feb 2006 - Apr 2014
Mar 2006 80 mi	Replace defective A/C condensor
Mar 2007 8100 mi	Replace wheel center caps due to peeling paint
Jul 2008 22000 mi	Faulty crankcase ventilation valve.
Sep 2008 22000 mi	XM Radio quit working. Replace XM Radio module.
Oct 2008 23000 mi	XM Radio Module replaced
Sep 2012 58000 mi US $1200	Replaced both motor mounts Replaced battery
Jun 2013 65000 mi US $1585	Replace water pump, thermostat, timing belt, tensioner. The coolant system thermostat was faulty and triggered the MIL light. The low coolant light came on and the water pump was found to be leaking.

Audi A4 in California, United States Mar 2009 - Sep 2016
Jul 2009 44000 mi	Cylinder 3 & 4 coil packs bad; turbo recirculation valve bad
Dec 2009 53000 mi US $85	PCV unit bad or leaking
Feb 2010 55900 mi	Defective coil pack (#1)
Apr 2010 60000 mi	fuel level sensor not reading correct fuel level
Nov 2010 72300 mi	Faulty fuel pump & sticking N80 purge valve
Mar 2011 79000 mi US $85	Transmission control unit failure.
Nov 2011 96000 mi US $30	Coilpack went bad
Feb 2012 102000 mi US $40	Bad coilpack
Sep 2012 114000 mi US $1700	Mild overheating. Replaced timing belt & tensioners, thermostat, coolant flange, coolant temp sensor and flushed cooling system.
Jun 2013 128000 mi	Coil pack went bad

Audi A4 in Florida, United States Sep 2011 - Jun 2013
Oct 2011 65372 mi	Cooling Fan repair to fix incorrect service that was previously performed. Cooling Fan repair to fix incorrect service that was previously performed.
Nov 2011 65972 mi	Front wheel bearings needed to be replaced.
Mar 2012 69000 mi	Had to replace the O2 sensor. Arm rest latch was broken and the arm rest would not clasp shut.
Apr 2012 69300 mi	Engine repair.
Aug 2012 71500 mi US $1068	Needed to replace all engine mounts (left, right, and stop mounts). Oil pressure sensor needed to be replaced. Spark plug and Direct Ignition Coil needed to be replaced.
Oct 2012 72000 mi	Replaced two more coil packs (Direct Ignition coil), all belts, all fluids, and other servicing as needed for 80k mile service.

Audi A4 in Virginia, United States Jun 2011 - Jul 2012
Jul 2012 71000 mi US $980	Fuel pump needed replacement. Fuel pressure was low.

Audi A4 in Alabama, United States Nov 2009 - Nov 2011
Apr 2010 46000 mi	Replace coil packs.
Jul 2010 49000 mi US $85	Busted coolant hose.

Audi A4 in Puerto Rico Jul 2016 - Jun 2017
Feb 2017 72000 mi US $362	Changed sensor & Oil change etc.

Audi A4 in California, United States Feb 2010 - Jun 2018
Dec 2011 74000 mi US $100	CEL as result of P2099 Code "underboost condition". Replaced Diverter valve with updated "D" variant that uses a piston instead of a flimsy rubber diaphragm.
Aug 2013 82300 mi US $25	Check engine light. Bad Engine Coolant Temperature sensor resulting in abnormal operating readings in temp gauge in cluster.
Jul 2014 84000 mi	TCM failure. Covered under extended warranty from class action lawsuit involving TCM and components failing on CVT transmissions.
Sep 2015 86000 mi US $1600	Replace thermostat as result of code #08577 thrown. Discovered Waterpump developed a coolant leak. Prompted to do a timing belt job early to save on the labor costs involved with job. Replace drive axle assembly due to leaking outer boot.
Oct 2015 86300 mi US $25	Drivers side master switch cluster malfunction. Causing child window lock to be engaged all the time. Replaced with chinese knockoff for $10. Broke several retainer clips when removing door card. Replaced with several knockoff clips.
Nov 2015 86000 mi US $50	No MIL. Check Cam follower as preventative maintenance. Black finish completely worn off. Replaced with INA cam follower @ 86k miles. No damage to cam lobe. Inspect HPFP, Approaching expiration of extended 10 year warranty (2016)
Feb 2016 88600 mi US $120	Mis-fire on cylinder 4.Causing blinking CEL engine vibration and rough running. Replaced all 4 coil packs and new sparkplugs.Earlier set was replaced under recall.This is third set for this car. Autozone coilpacks with lifetime warranty
Dec 2017 100000 mi US $1000	Random misfires after driving for about 30 minutes. All coil packs replaced under lifetime warranty. Intake removed and intake valves manually scraped and cleaned to remove carbon buildup. So far mis-fires have been resolved and have not returned even after extended driving periods.
Mar 2018 102000 mi US $400	CVT bucking, slipping from standstill. Burning smell. Lower CVT oil cooler hose had blown, bleeding out atleast 5 quarts of CVT fluid on the roadway. CVT oil got on the exhaust which resulted in the burning smell. Replaced lower cvt oil cooler hose (passenger side) and 5 quarts of TOTAL cvt fluid resolved issue. Really thought I was going through my second bad TCM.

Audi A4 in California, United States Mar 2011 - Jan 2016
May 2011 43042 mi US $203	Replaced Breather Valve Replaced Breather Valve. Check Engine Light, Shaking of car.
Aug 2014 60300 mi US $318	Tear in the Turbocharger Recirculation Valve. Check engine light.
Jan 2016 55000 mi US $130	Ignition coil failure / replacement . Towed

Audi A4 in Ontario, Canada Nov 2008 - Jun 2018
Jan 2009 44640 mi	Drivers side front speaker replaced. Left front speaker was replaced under warranty
Jul 2010 52700 mi	Timing belt snapped due to a seized bearing; also damaged cylinders and AC
Oct 2011 66960 mi C $80	N80 valve
Feb 2012 67360 mi C $1100	Transmission cooling line burst
Jun 2013 73780 mi C $350	Skid plate
Dec 2013 78120 mi C $55	CEL indicated problem with TCM (transmission control module malice replaced by dealer
Jul 2014 83700 mi C $1800	CEL was on; replaced several parts
Aug 2015 102600 mi C $3400	Leaks and knocking. Replaced engine.
Jun 2016 108500 mi C $350	Fuel pressure sensor
Jan 2018 112840 mi C $100	Trunk latch

Audi A4 in Florida, United States Feb 2008 - Jul 2014
Jan 2010 52000 mi US $50	Turbo vacuum switch and a sensor were replaced.
Feb 2010 52000 mi US $800	Two blown Liquid filled engine mounts were replaced after I noticed a leak. It was noticed when lower bushings were replaced under warranty. Control arm knuckle was cracked by the indie shop that installed my coilovers. Control arm cracked.
Nov 2010 65000 mi US $50	Cam shaft was replaced due to an emissions error. Oil change also performed. Related to my earlier CEL but was not diagnosed. The CEL came back on and thus time they replaced the low pressure fuel pump.
Jan 2011 67000 mi US $340	Coil pack went and Pep Boys grossly overcharged me for one coil and labour -$340. I replaced all 4 the next day off $160.
Oct 2011 78000 mi US $300	Vacuum leak that affected idling.
Mar 2012 82000 mi US $2000	Computer in the transmission, serpentine belt and speed contol sensor we're replaced.
May 2012 83400 mi US $940	Motor mounts and snub mount replaced.
Sep 2012 87000 mi US $280	Coolant flange was deteriorating and needed to be replaced. Coolant hose and temp sensor was also replaced. New coolant added.

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Audi A4 in Georgia, United States Jun 2008 - Apr 2012
Mar 2009 26000 mi	Automatic Transmission shift seemed delayed but was normal turbo lag.
Dec 2009 28000 mi	Car would not accelerate past 4000 RPM. Technical bulletin on fuel pump and cams/cam follows. Fuel pump and cam parts replaced.

Audi A4 in Ohio, United States Jul 2009 - Jul 2011
Aug 2009 17000 mi	Car brought in for scheduled oil change, tech discovered a code and replaced the faulty intake flap motor

Audi A4 in Texas, United States Nov 2011 - Jan 2012
Jan 2012 78000 mi US $90	Coil pack failure at cylinder 1, replaced all 4 coil packs.

Audi A4 in New Jersey, United States Dec 2006 - Sep 2010
Apr 2009 87000 mi US $1700	fuel sensor, serpentine belt replaced. a cam on the camshaft had to be replaced as metal part that drives mechanical fuel pump wore out and caused the cam to wear down. Cam and lifter for fuel pump had to be replaced due to wear. Fuel pump sensor was also replaced. This is a known problem with Audi 2.0 FSI engines fro 2006
May 2009 90000 mi US $1600	Replaced timing belt, water pump, rollers, etc.
Apr 2010 116000 mi US $1200	Fuel injector o ring blew. Valve cover gasket blew turbo blowback diverted valve blew
Jul 2010 122000 mi US $480	replaced 1 motor mount
Aug 2010 122000 mi US $400	CEL went on; had to replace intake valve

Audi A4 in California, United States Sep 2009 - Apr 2012
Apr 2011 66000 mi US $125	check engine light came on, engine code was check and it shown some valve was open somewhere. it could go from tail pipe through to the gas tank to the engine...technician use a wrench at one of the hose in the engine and able to determine

Audi A4 in Ontario, Canada Dec 2006 - Mar 2010
Jun 2006 3720 mi	Interior rattle - fixed under warranty.
May 2007 14880 mi	Cracked leather surface on driver's seat left side bolster.
Apr 2008 22320 mi	Return trip to have replacement seat cover installed.
Jan 2009 29140 mi	Pressure regulator valve malfunction resulted in check engine light. Part replaced and problem solved on same day in less than an hour.

Audi A4 in Ontario, Canada Dec 2006 - Jun 2015
Dec 2006 18848 mi	Accelerating on highway, power would cut for a couple of seconds and then resume. Check engine light appeared. Dealer is replacing camshaft and associated parts.
Jan 2007 18910 mi	Accelerating until approx 110km/h, power cuts for a couple of seconds and then resumes. Replacement was camshaft and related parts. A jolt while accelerating. Did not happen again but check engine light remains. One coil was replaced for misfire. Fixed Issue from december. Received another check engine light, result was a misfire they replaced one of the coils.
Jul 2009 55800 mi	Check engine light, boost control valve for turbo replaced
Sep 2011 81840 mi	Car loses power when accelerating above a speed of 70km/h. Brought to dealer, was the same issue with the camshaft follower being worn and a new camshaft parts. All under an extended warranty by audi to all cars up to 160000km/10 years.
Nov 2011 83700 mi C $200	HID headlight flickering in and out. New ballast ordered and replaced inside the headlight.

Audi A4 in Wyoming, United States Feb 2008 - Mar 2016
Aug 2008 27000 mi	Coil pack on one cylinder went bad. Car was missing and had no power.
Apr 2009 34000 mi	Trunk quit latching. Problem was first only present in cold weather but became persistent. Latch was replaced under warranty.
Aug 2009 38000 mi	Crankcase filter clogged, check engine light came on, replaced, light off, much happier wife
Apr 2012 65000 mi US $450	Oil leak on valve cover, vacuum leak, idling rough, check engine light on. Repaired leaks, new plugs & filters,
May 2012 65800 mi US $500	Check engine light, emissions problem, vacuum leak
Jun 2012 67000 mi US $500	Turbo bypass valve was faulty, low power, rough idle. Once repaired the car runs better than ever.
Oct 2012 70300 mi US $1200	A/C wasn't developing pressure - compressor replaced. Problem solved.
Jul 2014 86700 mi US $4200	Front Sway Bar Bushings replaced from wear Engine mount leaking fluid - replaced

Audi A4 in Massachusetts, United States Apr 2009 - Jan 2012
Jul 2009 55000 mi	DV replaced. The DV's diaphragm was ripped, loss of power and the CEL was on.
Jan 2010 62800 mi US $14	Trunk latch mechanism inoperable in cold weather: on cold days if you open the trunk, it would not close and lock. Purchased the mechanism from dealer ($116) and replaced it. Took about an hour to complete the job.
Apr 2010 60000 mi US $50	CEL came up. Ran diagnostics and pulled code P310B for low fuel pressure sensor, G410 (thrust sensor).
Aug 2010 64700 mi US $200	CEL with code P0642 indicating Intake Flap Motor V157 bad. Bought IFM at dealer and replaced myself, cleared codes, so far so good.
Jan 2012 78000 mi US $800	P310B code for thrust sensor originally. Dealer ended up replacing low pressure fuel pump, fuel filter and gaskets.

Audi A4 in North Carolina, United States Nov 2007 - Nov 2009
Jun 2008 30000 mi US $250	condensation fails to drain well when vehicle parked on grade leading to "wet dog" smell from vents

Audi A4 in Maryland, United States Feb 2009 - Mar 2010
Mar 2009 62000 mi US $9500	Check engine light came on. First told it was the fuel pump sensor. Escalated to fuel pump and went on to having to replace the engine with a used one. Once engine was swapped, learned that transmission also failed and needed to be replaced. I hate AUDI3 year old car needing 10K worth of repairs and AUDI washed their hands clean. They claim it could happen to any car. This car has all highway miles and h

Audi A4 in Ontario, Canada Apr 2009 - Jul 2018
Aug 2009 53320 mi C $2900	Locking system replaced. engine air intake issue resolved new rear brakelights
Jun 2010 65100 mi	Engine gasket replaced
Sep 2010 67580 mi C $1300	Alternator failed - repair required replacement alternator and battery
Mar 2013 89900 mi C $700	Check engine light. Replaced engine sensor. Airbag sensor also bad, will have to return. Airbag sensor replaced. After this trip both sensors failed again.
Jun 2013 93000 mi C $900	Emissions sensor out airbag sensor
Oct 2014 108900 mi C $800	There was a leak of coolant - this was sealed.
Dec 2014 110980 mi C $1000	Another coolant leak appeared over a week after the first was repaired - needed to be found and repaired
Oct 2015 119440 mi C $2500	Oil leak in cylinder - repair required.

Audi A4 in Massachusetts, United States Feb 2009 - Jan 2012
Apr 2009 35000 mi	Bad window regulator - driver front. Standard VW/Audi problem. Fixed under warranty. Passenger front started going, 2 weeks later, in shop now.
May 2009 36000 mi US $189	Regulator for Passenger side front window.
May 2010 45000 mi	Front Driver's side window regulator re-fixed less than 12 months after original repair. Passenger Front Window Regulator. Was reflashed (I was told replaced) 12 months ago, but started clicking again. Customer relations helping to see who will pay for this repair.
Jun 2010 48000 mi US $300	Revisit after Audi of America offered to pay 40% of the cost of replacing front p-side window reg. Fixed, all done.
Nov 2010 53000 mi US $385	Turbocharger solenoid. A rubber piece had worn a hole, and the car was running a little rough and low on power.
Apr 2011 57000 mi US $360	Intake valve and purge valve replaced. Wiring loosened on one of the solenoids that reside on the engine mounts; wires reconnected.
Jun 2011 58000 mi	Trans shifting roughly from 3-2, mostly under low RPM, and intermittently. No codes on the ODB. Also had brakes checked, grinding sound under very heavy load. Told the pads/rotors looks great. Will possibly change trans fluid/filter anyway

Audi A4 in Virginia, United States Mar 2009 - Jun 2018
Dec 2009 48000 mi	Valves for one of the cylinders were not closing completely, causing the car to shake. A new cylinder head was installed. A faulty ignition coil and throttle body were also replaced.
Jun 2010 55000 mi US $85	Relief valve to air box was stuck open. Part was replaced.
Aug 2010 60000 mi US $85	Fuel suction pump stopped working, shutting down the engine and preventing it from starting. Pump was replaced.
Oct 2011 86000 mi US $80	Part in intake assembly needed to be replaced.
May 2015 143000 mi US $300	Engine mounts replaced
Nov 2015 149000 mi US $500	Tie-rod ends replaced due to torn bushings on both sides
Jan 2016 149200 mi US $200	Satellite radio receiver replaced
Oct 2017 159000 mi	Airbag initiator replacement (Takata recall)
Jan 2018 163000 mi US $75	Heater core flush and coolant flush

Audi A4 in New York, United States Nov 2010 - Oct 2011
Mar 2011 92000 mi US $500	Clunking noise when turning
Sep 2011 99000 mi US $200	Diverter valve diaphram torn, replaced valve

Audi A4 in Texas, United States Dec 2014 - Mar 2015
Feb 2015 94900 mi US $650	Front lower control arm bushings were failing; replaced the entire control arms. Initially took it in for bad vibrations which turned out to be a shredded belly pan.

Audi A4 in Ohio, United States Feb 2015 - Mar 2017
Jan 2016 98000 mi US $5600	The engine froze up and it had to be replaced. The new engine has a P2293 code for fuel pressure that we are also trying to work out. This car is bleeding me dry.
Feb 2017 110000 mi US $500	Drivers door handle could not open from the inside. Cable was replaced. ECU still thinks that fuel pressure is low when it isn't.

Audi A4 in Nevada, United States Dec 2014 - Jan 2015
Dec 2014 72000 mi US $400	Had coolant flange leak repaired than subsequent low temp reading and thermostat replaced
Jan 2015 US $850	Had oil change, new diverter valve, and cam follower checked/replaced. Found follower damaged and had to repair HPFP as well.

Audi A4 in Massachusetts, United States Dec 2013 - Jan 2015
Nov 2014 103900 mi US $700	Dead battery. Would not start. Dead starter motor.
Dec 2014 106000 mi US $700	Calipers seized up and would not release. Brakes overheated.
Jan 2015 106000 mi US $130	Oil pressure light comes on. Engine has oil and pressure tests show no actual problem. Sensor replaced but warning light persists.

Audi A4 in Ontario, Canada Nov 2009 - Nov 2012
Jan 2010 58400 mi	recall for ignition coil O2 sensor replaced
Jun 2010 42160 mi C $110	check engine light went on problem with clogged air intake and ignition coil
Oct 2010 45360 mi	yellow check engine light on problem with intake manifold repaired on second attempt
Dec 2011 58900 mi C $150	failed thermostat replaced
Aug 2012 63800 mi	broken camshaft damaged engine which waas replaced by Audi!

Audi A4 in Washington, United States Sep 2014 - Sep 2020
Oct 2014 95200 mi	2.0T engine Cam follower

Audi A4 in Alberta, Canada Jun 2015 - Jun 2015
Jun 2015	Engine vibrates excessively at idle rpm. Audi claimed it was normal.

Audi A4 in California, United States Jul 2015 - Dec 2015
Aug 2015 109200 mi US $4286	Replaced High Pressure Fuel Pump, Sensor & Camshaft Follower (follower is a common wear item on 06-07 MY 2.0T engines, was not inspected by previous owner, caused damaged to HPFP and Intake Camshaft). $528. Replaced Intake Camshaft with Cam Chain & Tensioner (proactive). $1270. Replaced rear timing cover housing w/controller solenoid due to oil leak and solenoid error code. $720. Replace Boost Diverter Valve, common wear item on early 2.0T engines. $250. Replace Fuel Filter. $50.

Audi A4 in Virginia, United States Aug 2009 - May 2018
Nov 2016 89000 mi US $1900	Replaced tie ends and another part that was leaking
Mar 2018 92000 mi US $3000	coolant leak

Audi A4 in Ontario, Canada Sep 2016 - Jun 2018
Oct 2017 109120 mi C $600	Car was stalling once in a while either idling or cruising at highway speeds and not starting when attempted once stalled. It would start without an issue when cold and would act normal for a few days and stall again. Replaced fuel pump. Initially paid $900, later refunded. High Pressure Fuel Pump failure, as indicated by scanner. But this didn't fix the issue.
Nov 2017 109740 mi C $500	Picked up the car after the repairs the day before. Dealer had replaced the gas pump, as the car was stalling for no reason while running. But it stalled again on the way home from the dealer. They found out that the low pressure fuel sensor was defective. It was replaced at their cost and the difference between the fuel pump and the sensor was refunded to me as per my request.
May 2018 117800 mi C $1200	The trunk lid had a big rust spot, rust warranty is 13 years on this vehicle, Audi Canada inspected the vehicle and found flaking paint under the passenger side front fender and passenger side rear quarter panel in addition to the trunk lid.The lid and the fender was replaced, the rear quarter panel was repainted.

Audi A4 in Wisconsin, United States - Aug 2009
Aug 2009 30500 mi	Intake manifold flapper motor failed.

Audi A4 in Virginia, United States Nov 2015 - Dec 2017
Feb 2016 114500 mi US $658	P/S steering knuckle had to be replaced due to improper reinstall done by a precious independant repair shop.

Audi A4 in Washington, United States Nov 2015 - Jul 2018
Mar 2016 97000 mi US $300	Replaced wiring harness that connects speaker, power windows, etc in driver's front door (wires in original harness had worn through causing speaker to stop working).
Jul 2018 122615 mi	Child safety window switch no longer functions. Informed by dealer that switch has failed. Decided not to repair. NOTE: I have no children and this switch has been used fewer than 20 times in the entire 12 years since purchasing this car new. Inner CV boot is cracked

Audi A4 in Idaho, United States Dec 2013 - Mar 2014
Jan 2014 US $250	Passenger side axle seal was replaced due to leaking.
Mar 2014 148000 mi	Repaired center console lid hinge with a generous amount of JB weld at the cracked area, then applied a new latch to the front which was made using a plastic printer. Expansion tank has a crack just above the bottom coolant line return for radiator. Crack is approximately 2 inches in length and required replacement part. Part cost is $32 shipped.

Audi A4 in Michigan, United States Jun 2014 - Jan 2021
Oct 2016 141000 mi US $57	replace exhaust flex connection engine misfire. replaced two ignition coils number 3 and 4 failed one day apart. first number 3, next day number4 also failed.
Dec 2016 143000 mi US $46	replaced 2 more ignition coils
Aug 2017 156000 mi US $4000	valve cleaning, emission system replace timing belt and water pump and thermostat
Apr 2018 162000 mi US $500	replace right front wheel bearing

Audi A4 in Michigan, United States Jun 2011 - Jun 2013
Nov 2012 54800 mi US $750	Replaced worn engine mounts
Feb 2013 57500 mi US $350	Thermostat failure with CEL.
May 2013 60000 mi US $54	Failure of diverter valve before turbo. Replaced with newer version from Audi.

Audi A4 in Malaysia Oct 2011 - Jul 2018
Dec 2011 117800 mi $400	Replaced the HPFP and cam follower. Discovered worn camshaft. I replaced the intake camshaft and head gasket.
Jan 2012 127880 mi $300	Then I replaced the thrust sensor and druck sensor for the P310B/ 012555 issue, but still P310B fault. No CEL or fuel cuts happened. Ordered Rear Fuel Pump, hoping this would cure the P310B fault code.
Feb 2012 118700 mi $300	Replaced rear fuel pump, light out.
Jun 2012 120900 mi $600	Replaced the right side Driveshaft. As there are juddering when acceleration especially from 1st to 2nd gear. Car was running rich, mechanic recommended to replace both the Lambda sensors (front and rear) as the car age is already 6 years old.
Jul 2012 121900 mi $375	Replaced Front Left CV Boot as Grease leak was found at the drive shaft
Jun 2013 134540 mi $180	Did my 10k service and same time replace my Fuel Flap Actuator and also the N80 (EVAP Purge Valve).
Oct 2013 136400 mi $200	Had problem with Boost not passing 4psi, my regular boost was 17psi. This only happens when the car is warmed up. After 2 days of troubleshooting and testing as no fault codes, found out that the N75 wastegate actuator valve is faulty.
Dec 2013 136400 mi $600	Starter failed after replacing a new battery
Mar 2014 138880 mi $500	Replaced the left side front knuckle @ wheel bearing housing and also subframe bushes.
May 2014 140400 mi $900	Replaced both Coolant Fan and Air Cond Fan and also the Control module for this. Problem was due to sudden lost of Fan power to both units.
Jan 2015 139200 mi $1000	Changed my radiator as it was leaking. Replace both left and right engine mountings. Replace both left and right transmission mountings.
Jul 2016 164920 mi	Replaced my front both Axle and also the driveshaft. Due to shuddering during acceleration.

Audi A4 in California, United States Nov 2009 - Feb 2011
Nov 2009 46000 mi	Dipped headlight evaluation, no repair done.
Dec 2010 57000 mi	Sunroof drain clogged, water in passenger backseat seatbelt.

Audi A4 in Minnesota, United States Sep 2010 - Sep 2017
Oct 2010 140800 mi US $1373	Cam follower failed, taking other parts with it. Replaced the camshaft and cam lobe, seal rings, adjuster, follower, gaskets, and housing. $4,000 total, but split three ways with Audi and the dealer. Coils, breather valve, HPFP (damaged by cam follower failure).
Oct 2011 171000 mi US $6900	Car was making slight noise. Upon inspection it was found that a bolt had been sheared off in the engine and a new engine would be needed.
Apr 2013 209800 mi US $1063	Thermostat replaced. Rear brake lines replaced, brakes flushed.
Sep 2015 265000 mi US $1500	Inner and outer toe rods replaced. Pressure regulator replaced
May 2016 285000 mi US $1600	Power steering rack replaced
Jul 2016 292000 mi US $1600	Alternator failed, steering fluid line rupture
Dec 2016 301000 mi US $280	Spark plugs and new coils

Audi A4 in Colorado, United States Apr 2010 - May 2013
Sep 2011 77000 mi US $300	A leaking intake hose was found during routine oil change and inspection. Causing a turbo boost leak into manifold and oil pan.
Oct 2011 77500 mi US $175	Failed PCV valve detected and replaced. Failed PCV valve detected and replaced.

Audi A4 in Illinois, United States Jul 2010 - Apr 2015
Aug 2010 40750 mi US $125	Passenger fog light. Foglight light replacement. Purchased part online and dealer fix for under $75. If dealer purchased the part and fix the foglight it would cost $200.
Apr 2011 49000 mi US $400	Headlight dip issue. Right
Sep 2011 56000 mi	Headlight replacement, new LED bulb.
Nov 2011 58000 mi US $200	Turbo recirculation valve PCV Valve
Sep 2012 69000 mi US $250	Window regulator driver side front window broke.
Jan 2014 89000 mi US $1000	Engine mounts replaced, both side. Right side failed.

Audi A4 in Ontario, Canada Feb 2012 - Sep 2012
Mar 2012 68200 mi C $170	needed to replace the mass airflow sensor, other than that the engine is running strong.
Apr 2012 69800 mi C $340	Have to get the mass airflow sensor replaced again, plugs had to be changed also...

Audi A4 in Illinois, United States Oct 2011 - Mar 2014
Jul 2013 57000 mi US $2000	Check engine light on. Lost communication with TCM. Transmission in limp mode. TCM replaced
Feb 2014 57000 mi US $1211	Engine mount replaced, transmission fluid change / filter kit.

Audi A4 in California, United States Dec 2012 - Apr 2016
Jan 2013 99000 mi US $382	Rear Output Shaft Seal
Oct 2013 105300 mi US $1200	I got my maintenance done at Pure Motorsport which included my timing belt, oil change, valve cover gasket, and cam follower. It was all preventive maintenance except for my valve cover which was leaking.
May 2014 108600 mi US $260	Battery died
Oct 2014 110300 mi US $1600	I replaced front Upper Control Arms and all suspension with new Vogtland Coilovers. Also got an alignment done. Control arms were noticeably worn because of noise and visual inspection. Stock suspension was just upgraded, not sure if it was bad.
Jan 2015 112200 mi US $1500	I had to replace the Low Pressure Fuel Pump with Relays, High Pressure Fuel Pump, and Fuel Filter because they all went out.
Apr 2016 124000 mi	The brakes would sudden not want to stop the car and the brake pedal would stick all the way out and not want to go in to stop the car while driving unexpectedly.

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Audi A4 in Illinois, United States Dec 2008 - Dec 2016
Apr 2008 28000 mi	Drivers's side rear seat fold-down latch was replaced.
Oct 2008 33000 mi	Window regulator on drivers door went bad.
Sep 2012 62000 mi US $250	Read seat passenger loosened driver's side airbag wires by sliding feet underneath the seat.
Nov 2012 62900 mi US $100	Replaced thermostat
Dec 2016 86000 mi US $130	Passenger side low beam halogen headlight went out

Audi A4 in California, United States Feb 2010 - Mar 2011
Mar 2010 67000 mi	Noise when turning... Discovered that a bolt was missing from the sway bar... dealer replaced the part and provided loaner car at 0 cost...
Feb 2011 83000 mi US $2033	came in for 85k service, technician discovered vacuum pump leak 4 upper link bushings need to be replaced as well.

Audi A4 in Indiana, United States Aug 2014 - Jul 2015
Dec 2014 99000 mi US $900	Pressure plate broke up in pieces. Needed new clutch kit.

Audi A4 in Ontario, Canada May 2008 - Sep 2009
Jun 2008 47120 mi	4 coil packs replaced
Sep 2008 50840 mi	front seat leather replaced

Audi A4 in Minnesota, United States Mar 2009 - Feb 2011
Apr 2009 29000 mi	Bought in early April, When detailing the engine the dealer got the ingnition coils wet, caused two of them to go bad. Dealer replaced all 4 at no cost and have not had a problem since.

Audi A4 in Ontario, Canada Feb 2009 - Jun 2011
Mar 2010 68820 mi C $289	all 4 ignition coils went bad due to water damage, not recall problem, already replaced after recall
Aug 2010 79360 mi C $221	Replaced window regulator

Audi A4 in California, United States Apr 2009 - Mar 2010
May 2009 42000 mi	Replaced low pressure sensor for fuel pump & replaced fuel filter Glove box hinge broken replaced and fixed

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Audi A4 in Bolivia - Aug 2011
Aug 2011 109740 mi $150	Engine cooling system (radiator, water pump, thermostat, heater core, etc.), repair

Audi A4 in North Carolina, United States Feb 2010 - Jan 2011
Apr 2010 67000 mi US $400	replace ignition coils broken door open signal wire
Jan 2011 74000 mi US $2000	Replaced camshaft Replaced fuel pump

Audi A4 in Massachusetts, United States Nov 2009 - Apr 2012
Dec 2009 44000 mi	Difficulty getting into 1st gear from neutral. Difficulty getting into 3rd from 2nd.
May 2010 48000 mi	Center-right vent does not blow sufficient air like the other vents.
Jun 2010 49000 mi	Popping Noise when braking and/or turning at slow speeds.

Audi A4 in California, United States Sep 2008 - Jul 2018
Oct 2010 101000 mi US $1100	Two check valves were replaced, plus a minor oil leak in the value cover gasket. Additionally the 105K service was performed.
Feb 2013 147000 mi US $3400	Finally replaced my clutch. Dealer said they last to about 85K normally, mine finally went around 148K. Considering I am the second owner, pretty impressive life for a clutch
Feb 2018 260000 mi US $600	Vacuum leak in emissions control housing

Audi A4 in Utah, United States Mar 2010 - Feb 2018
Oct 2010 62000 mi US $75	HID headlamp shutting off and reporting as "dipped headlight" in DIS. HID element was replaced. Required removal of front bumper.
Nov 2010 63000 mi US $60	Checked and replaced Cam Follow for high pressure fuel pump. The cam follower was well worn but had not yet failed. Had it failed (hole worn into it), a replacement of the cam shaft would have been required. I check this part every 10-15k miles
May 2013 90000 mi US $1580	Replace Brake Vacuum Pump and gasket Replace valve cover gasket
Jun 2013 90000 mi US $450	Error with headlamp AFL reported. Failed component in ballast identified as culprit. Ballast replaced
Jul 2013 90200 mi US $360	Under hot operating temperatures (hot days, extensive city driving) the clutch would not stay fully disengaged when depressed while waiting at a signal light or restarting after an errand
Jun 2015 98000 mi US $54	The driver's window control switch stopped operating the rear windows and had to be replaced.
Nov 2017 123000 mi US $1800	Worn clutch was replaced. The oil filter housing had a small crack and was replaced as well.

Audi A4 in Minnesota, United States Apr 2010 - Apr 2014
Jul 2011 51500 mi US $385	Window regulator replaced on drivers door. Window would no longer roll up or down. Window regulator replaced on drivers door. Window would no longer roll up or down.
Dec 2012 59000 mi US $400	Thermostat was stuck open and car would not get up to full temperature in the winter season. Heater would not work properly, especially at idle.
Jan 2014 66000 mi US $200	Diverter valve replacement after taking into dealer for check engine light diagnosis. Diverter valve replacement after taking into dealer for check engine light diagnosis.

Audi A4 in Belgium Mar 2011 - Dec 2013
Sep 2011 76880 mi	Engine coils repaired under warranty
Nov 2011 77800 mi	Hydraulic Engine supports leaked => replaced
Feb 2012 78740 mi €125	Battery was dead and at the end if it's lifecycle
Jan 2013 78720 mi €250	Xenon lightbulb faillure

Audi A4 in Pennsylvania, United States May 2010 - Sep 2017
Sep 2010 53000 mi US $50	rear left brake light
Nov 2011 69800 mi US $400	Leaking water pump. Replaced.
Mar 2012 74000 mi	Hesitation under hard acceleration. Replaced cam and cam follower.
Sep 2012 81000 mi US $590	Thermostat sticking - needed to be replaced
Apr 2013 87300 mi US $313	Wipers not switching on. Tech traced issue to short in relay for wipers. Replaced relay.
Oct 2015 94200 mi US $900	replace engine mounts to pass PA state inspection
Sep 2016 97000 mi US $1261	Front passenger window wouldn't go up - replaced regulator and motor
Jan 2017 98350 mi US $526	CEL - replaced all four spark plugs and coils

Audi A4 in Oregon, United States Jul 2009 - Nov 2017
Aug 2009 38000 mi	Right headlight intermittent failure. Bulb replaced on second visit. Car was purchased as CPO and the problem was dicovered on the first day so the dealer covered the problem.
Dec 2012 66000 mi US $345	Engine temperature per the gauge was not reaching full temperature. Diagnosed as thermostat not closing, replaced by dealer.
Oct 2013 72500 mi US $36	One of the two clutch switches failed causing a non-operative cruise control and resulting in a drivability issue. The top switch needs to function or the engine holds revs while shifting. Quick replacement, takes about 10 minutes.
Feb 2015 83000 mi US $350	Driver's side motor mount was leaking, dealer replaced the one side. While in for an oil change the mechanic recommended I have the high pressure fuel pump inspected. Pump was removed/inspected and the cam follower had a hole worn through it. Pump, follower, cam shaft were all replaced. No charge to me.
Nov 2015 89500 mi	When the weather turned cold the trunk wouldn't latch. It was an intermittent problem that came and went. I removed the latch assembly, cleaned it and added grease. Works perfectly now.

Audi A4 in Pennsylvania, United States Mar 2009 - Jun 2011
Sep 2009 32000 mi	Passenger window would roll down after driver rolled window up.

Audi A4 in Nova Scotia, Canada Jul 2007 - Aug 2009
Jul 2008 35960 mi	2 cm split in leather of driver's seat.

Audi A4 in Oregon, United States Dec 2006 - Feb 2011
Nov 2007 25000 mi US $205	software update, no problems noticed with vehicle.
Jul 2008 34000 mi	Power loss during hard acceleration. Unspecified software update.
Mar 2009 43000 mi	Flickering headlights, described under TSB
Feb 2011 74000 mi US $60	Engine temperature was not stable. Thermostat was purchased to repair problem but I was unable to perform the repair.

Audi A4 in Wisconsin, United States Dec 2006 - Apr 2011
May 2009 33000 mi	Faulty IRMC valve replaced. CEL cleared.

Audi A4 in Quebec, Canada Oct 2007 - Sep 2013
Jul 2009 20894 mi	Crankcase Ventilator (PCV)was replaced. There is a recall for this problem (recall CR). Symptoms: Car shudders/shakes while idling. RPM fluctuates by several hundred RPM while idling. Diagnostic scan showed multiple/random cylinder misfires. Crankcase Ventilator (PCV)was replaced. There is a recall for this problem (recall CR). Symptoms: Car shudders/shakes while idling. RPM fluctuates by several hundred RPM while idling. Diagnostic scan showed multiple/random cylinder misfires.
Jan 2010 26780 mi	Car was shaking violently. Dealer scans idicated that the diverter valve was faulty.
Jul 2012 34300 mi	Intake manifold runner & PCV replaced. Rear window safety switch broken. This prevents rear seat passengers from operating the windows. Replaced cam follower because it was worn.
Jun 2013 38440 mi C $70	There was a hole in the exhaust system due to corrosion. A portion of the exhaust system was replaced.

Audi A4 in Minnesota, United States Feb 2008 - Jun 2011
Aug 2008 29000 mi	Intake flaps were not working correctly. A common problem.
Nov 2008 32000 mi	Rear view mirror fuse got stretched and wasn't making contact anymore.
Feb 2009 40000 mi	Replaced the CAT.
Jul 2009 49000 mi	The deadly camshaft code

Audi A4 in Ontario, Canada Feb 2009 - May 2011
Jan 2010 60760 mi C $98	broken bumper bracket

Audi A4 in Colorado, United States May 2009 - Dec 2012
Dec 2009 78000 mi	Timing Belt replacement, 75,000 maintenance, Oil Change, Brake diagnosis (Brake Light came on). Either pads need to be replaced or brake fluid is low in the ABS reservoir or brake reservoir.
Jun 2011 104000 mi US $1400	Problem 1 was a misfire on cylinder 4 (P0304) and a cooling system performance issue (P2181). Valve cover, spark plugs, ignition coils and coolant temperature sensor all replaced. New rear rotors and brake pads as well. Different mechanic to try to fix the misfire on cylinder 4 (P0304). Did engine diagnostics, inspected EVAP, DV, MAF sensor and intake system. Performed carbon cleaning. Replaced crankcase ventilation hose & vent, and fuel injector. Fixed

Audi A4 in Louisiana, United States Jul 2011 - Aug 2012
Aug 2011 79000 mi US $2000	Intake camshaft replaced, cam follower replaced, hpfp replaced, timing belt replaced, water pump replaced. Noticed poor performance. Removed hpfp to inspect follower. Follower had a hole in it and hpfp shaft was pressing against the cam.
Feb 2012 83100 mi	The August repair installed the wrong cam. This took 3 months to figure out.
Jun 2012 86000 mi US $300	Wheel bearings changed

Audi A4 in Ohio, United States Sep 2009 - Jun 2018
Oct 2012 78500 mi US $420	Replace malfunctioning thermostat.
Dec 2014 100000 mi US $1763	Engine control module failed requiring replacement.
Jan 2016 85500 mi US $1300	Replace coolant flangs
May 2016 108900 mi US $185	Replace valve cover gasket
Sep 2016 111000 mi US $192	Replace vacuum pipe
Nov 2016 111900 mi US $332	Ignition coil failure, replaced coils and spark plugs.

Audi A4 in Saskatchewan, Canada - Nov 2008
Nov 2008 48980 mi	Front passenger seat sensor Intake flap motor

Audi A4 in Pennsylvania, United States Jul 2015 - Mar 2020
Oct 2015 110700 mi US $25	Replaced bad coil pack.
Feb 2016 116000 mi US $75	Had an issue with another coil pack and just replaced the other 3 packs, it took longer to drive to the nearest Autozone then it did to replace them.
Jun 2016 121000 mi US $25	Replaced the Vapor Canister Purge Solenoid which was creating difficult starting and check engine light
Sep 2017 141000 mi US $1600	variable cam adjuster sprocket failed, also replaced the timing chain and adjuster while the back end of the engine was apart.
Dec 2017 147000 mi	Replaced airbag under warranty
Jan 2018 148000 mi US $25	Replaced 2 more coil packs, the previous coil packs only lasted about 2 years.

Audi A4 in Ohio, United States - Jan 2008
Feb 2007 15000 mi	Water pump replaced
May 2007 25000 mi	Pressure Control Valve (PCV) replaced
Jun 2007 30000 mi	Diverter Valve replaced
Jan 2008 55000 mi	Pressure Control Valve (PCV) replaced

Audi A4 in Colorado, United States Dec 2016 - Jan 2017
Jan 2017 109000 mi US $5600	Previous mechanic neglected to repair all faults in motor after camshaft/follower repair. Oil pump balance shaft was damaged and caused engine failure after "repairs" were complete. Don't go to Dave's European in Denver. New long block.

Audi A4 in Alaska, United States Dec 2014 - Jul 2015
Apr 2015 150300 mi	Leak Detection Pump replacement.

Audi A4 in Colorado, United States Jul 2009 - Aug 2012
Jul 2009 76269 mi US $842	Cam follower worn through, which damaged High Pressure Fuel Pump. Both replaced. Also had boost control valve replaced due to fault codes while car was in for repair.
Aug 2012 138000 mi US $1371	Car was taken to dealership after previous repair to cam follower and intake cam was done by a local Audi specialist. Car's engine destroyed due to excessive wear of HPFP cam follower; which came apart in the engine causing serious damage. MIL light and oil pressure lamp came on, idling off and lack of power. Took to shop to find another cam follower had worn through causing major damage to both cams, cylinder head and cylinder wall.

Audi A4 in California, United States Oct 2015 - Jan 2016
Jan 2016 110000 mi US $1000	New CV axles were needed. Major Tune up (fuel filter, spark plugs, new fluids etc).

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Audi A4 in Districto Federal, Mexico Sep 2009 - Sep 2012
Jan 2010 34720 mi	Xenon lights blinking
Mar 2011 47120 mi $1000	CHANGING THE CATALYTIC CONVERTER
Aug 2012 58980 mi $5000	Multotronic failed (second time)

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Audi A4 in Costa Rica Feb 2014 - Oct 2017
Aug 2014 64800 mi $550	Oil leak from gearbox Flap intake valve fail
Feb 2015 73020 mi $1	Tandem pump gasket failure. Replace only the gasket Engine intake manifould flap failure. Replace it
Mar 2015 72540 mi $485	Change CV boot front right Change front shocks due worn shock Change front shocks due worn shock
Mar 2016 81840 mi $300	sound in turns, replace steering wheel join
Jun 2016 82460 mi $150	wear strut bearing
Aug 2017 88660 mi $305	Change glow plugs and EGR Valve. Engine mounts.

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Audi A4 in Arizona, United States Dec 2014 - Nov 2016
Oct 2015 88200 mi US $250	Power window failure driver side. Update: passenger side failed later in the month. Both wedged in up position for now.
Oct 2016 106000 mi US $150	misfire on cylinder 2 as per code reader. Replaced spake plugs and leads. appears to have solved the problem
Nov 2016 106000 mi US $1400	catastrophic engine failure related to injection system. replaced 3 injectors and cleaned entire injection system. Did not fix the problem so sold vehicle. Power windows never fixed. Nothing done, not included in cost figure.

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Audi A4 in Georgia, United States Jul 2014 - Dec 2016
Jun 2015 133000 mi US $100	AC not cooling. Found leaky component, replaced and recharged system. right low beam HID headlight would occasionally flicker. Replaced bulb.
Dec 2016 151000 mi US $600	motor munt broken

Audi A4 in New York, United States Sep 2007 - Jun 2008
Jun 2008 16000 mi US $75	Broken exhaust bracket - replacement bracket installed.

Audi A4 in Ontario, Canada Sep 2010 - Apr 2011
Apr 2011 67580 mi C $150	Fuel system problem. Engine light flashes

Audi A4 in Saskatchewan, Canada Feb 2011 - May 2016
Apr 2011 120280 mi C $900	Replace all fuel injectors
Jun 2011 125860 mi C $50	CV boot clamp came off, would throw the car into "limp mode" when driving in heavy rain as it triggered the ESP (electronic stability control) and then engaged the EPC (electronic power control) limiting power and RPM (limp mode)
Oct 2013 186660 mi C $65	Replaced HID headlights, it's a pain in the a##
Jan 2014 191200 mi C $700	Car was not coming up to temp, reading about 1/4 on the temp gauge instead of 1/2....this meant reduced capability for cabin heat in -40C. I replaced the thermostat and 3 main rad hoses as well as the serpentine belt while I had the car apart
Apr 2015 215840 mi C $50	Replace HID headlights... remove front bumper cover, remove headlight assemblies, install new headlights, reinstall all parts.
Jul 2015 220080 mi C $115	Valve cover gaskets leaking into spark plug cavity, also leaking on engine. Replaced gaskets.
Nov 2015 223200 mi	Oil leaking from timing chain covers at rear of engine. Removed, cleaned old gasket material off, applied RTV type gasket sealant and reinstalled covers.
May 2016 226920 mi C $630	High pressure switch defective, leaking, required replacement, then system recharge. Fixed oil leaks, cam sensor seals shot.

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Audi A4 in Illinois, United States Jun 2009 - Dec 2014
Mar 2014 43000 mi US $1000	High pressure fuel pump

Audi A4 in Vermont, United States Sep 2011 - Jul 2014
Dec 2013 90000 mi	Intermittant headlight flickering
Jan 2014 78100 mi	Intermittent flickering headlight issue repaired by dealer as 'customer curtesy' after many, many complaints.

Audi A4 in Virginia, United States - Jan 2009
Jan 2009 24500 mi	Carbon build-up in the engine. Root cause: most likely pampering of previous owner and/or improper fuel used without additives. Solution: use name brand fuel that contains the additives and techron liquid solution every 3,000 miles for the engine.

Audi A4 in Washington, United States Sep 2010 - Jan 2013
Jun 2011 62000 mi US $50	Audio/Nav system would not recognize CD player which rendered it non-functional. Fix was to remove and replace the same unit.
Aug 2012 66900 mi US $541	Oil weeps from driver side rear differential. Oil weeps from driver side valve cover gasket.

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Audi A4 in Massachusetts, United States Dec 2006 - Jun 2011
Dec 2007 15000 mi	replaced cracked headlight washer fluid line
Jan 2010 25800 mi	Power steering hose clamp came loose and lost all power steering fluid

Audi A4 in New York, United States Mar 2008 - May 2009
Mar 2009 42000 mi	Low Coolant Warning Light - noticed liquid on garage floor. Called dealer, he suggested towing to dealership. Plastic plug was found cracked and replaced.

Audi A4 in Virginia, United States Aug 2008 - Dec 2010
Jan 2009 24000 mi	Coolant leak repaired.
May 2009 25000 mi	Coolant leak returned a month after the previous repair, but did not have time to immediately take it into the shop.

Audi A4 in New Jersey, United States Sep 2011 - Dec 2013
Dec 2013 102000 mi	ABS Control Unit

Audi A4 in Texas, United States Mar 2012 - Feb 2013
May 2012 56000 mi US $50	Rear window separated from convertible top trim.
Sep 2012 61000 mi US $1700	Rear window separated from convertible top. Leak in Oil pan. Replaced oil pan cover and seal.

Audi A4 in California, United States Dec 2013 - Feb 2017
May 2014 71600 mi US $1000	Shifting handle wouldn't disengage from parking.
Dec 2014 76000 mi US $600	Coolant leak, flange replaced.
Mar 2015 77000 mi US $1250	Water pump replaced again, after 18 months. It was first replaced by the previous owner before selling to us.
Mar 2016 85000 mi US $800	Third time cooling system needs repair in less than 20k miles.
Nov 2016 88200 mi US $100	Coolant temp sensor leak.
Dec 2016 89000 mi US $100	Another leak in cooling system where it connects to heating. Bypassed heating as that would have be $1,250. So no more heating ...

Audi A4 in New York, United States Jul 2012 - Dec 2012
Sep 2012 64000 mi	AC was freezing up and then blowing cold air. Water got in the system during some earlier recharge. System was pumped clean and dry then recharged.

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Audi A4 in California, United States - Sep 2006
May 2006 7000 mi	glove box didn't latch closed
Sep 2006 10000 mi	tension strings on cloth top broke

Audi A4 in Alabama, United States Jun 2012 - Mar 2013
Aug 2012 53100 mi	Secondary Air Pump was reporting leak. Recvd check engine code Recvd check engine code that 3rd tail light was not operational.

Audi A4 in Washington, United States Jun 2014 - Mar 2016
Apr 2015 61300 mi US $800	Replace tie rod ends and a stabilizer bar. The mechanic says these cars wear them out faster than many, but this wasn't as bad as some he's seen.
Jan 2016 61700 mi US $50	Coolant reservoir cracked and leaked, replaced at home.
Mar 2016 70000 mi US $1600	Leaky valve cover gaskets. Replaced as part of larger service trip. Replaced water pump, thermostat, and coolant crossover pipe to correct temp issues. Replaced all upper and lower control arms, tie rod ends, and front struts to correct worn parts and poor steering control. Replaced worn timing and serpentine belts and related tensioners/spindles/whirly things.

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Audi A4 in Florida, United States Aug 2009 - Jan 2010
Sep 2009 49000 mi US $4500	CVT transmission failed miserably during highway driving, locking front wheels and coming to a screeching halt.

Audi A4 in Florida, United States May 2015 - Jun 2015
Jun 2015 138000 mi US $125	Valve head gasket oil leak

Audi A4 in Illinois, United States Sep 2014 - Oct 2015
Aug 2015 106900 mi US $2500	Thermostat, water pump

Audi A4 in Utah, United States Dec 2009 - Jun 2011
Feb 2010 36000 mi US $400	drivers side window regulator went bad at 36k

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Audi A4 in Oregon, United States Feb 2008 - Mar 2010
Aug 2009 71000 mi US $1740	I found a TSB that described my issue of losing power on inclines. There is a TSB 2013147/4. He did replace a sensor first, audi recommendation. Cam follower looked like A pic, cam replaced. Replaced fuel pump. Oil metal was in the filter because of issue.

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Audi A4 in California, United States Mar 2010 - Jun 2011
Apr 2010 26000 mi US $50	This would be trip 3...the ignition coil had to be replaced along with the overhead light bulb.

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Audi S4 in Oregon, United States Jul 2010 - Jul 2013
Dec 2010 61000 mi US $90	Ignition coil broke. Got flashing CEL (indicates possible damage to cats if driven). Towed to dealer and all 8 ignition coils replaced under warranty. Dealer covered $100 of tow, rest was my responsibility.
Jun 2011 71000 mi US $25	Bad bulb holder for DRL was causing excessive heat burning out bulbs in less than a day. Required replacement of bulb holder.
Sep 2012 85000 mi US $600	Had to replace front control arms. Loose steering and knocking from front end.
Nov 2012 86400 mi US $150	Changed transmission/differential fluid. Front differential was grinding in tight turns and MT was getting difficult to shift.
Jul 2013 93000 mi US $750	Creak from wheel bearings due to improper fit in hub. Had to disassemble and grease interface btw bearing and hub. Replaced wheel bearings at that time.

Audi S4 in North Carolina, United States Aug 2014 - Jun 2018
Jun 2016 106000 mi US $800	Bad axle
Feb 2017 113000 mi US $800	Driver's side axle replacement
Apr 2017 115000 mi US $6400	Timing chain failure. Replacement of chain, tensioners and adjusters.
Jun 2017 117000 mi US $2900	Air pump failure ($700 part) and main wiring harness melted in various areas ($1600 part).
Dec 2017 120000 mi US $1200	Engine mounts and oil gaskets

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Audi S4 in Washington, United States Mar 2010 - Jun 2011
Apr 2010 52000 mi US $1000	Replaced valve cover gaskets, valve cover caps etc etc. Now problem of flickering headlights. Great car to drive but pain in the butt to keep after warranty. Replaced fuel pump.

Audi S4 in Louisiana, United States Feb 2016 - Mar 2018
Jul 2016 179800 mi US $160	rack & pinion to cooler line busted.
Mar 2018 202000 mi US $2000	replaced blown rack and pinion, done alignment AC compressor not engaging. hooked up computer and found high pressure switch fault. hooked up ac machine and found no Freon charge. added 1lb of Freon to system and found a leak at the high pressure switch. removed front bumper and replaced ac pressure switch, pulled system down and leak tested...all good. recharged the system and tested. working fine. re-installed bumper and finished job.

Audi S4 in New Jersey, United States Nov 2010 - Dec 2010
Dec 2010 90000 mi US $1460	Radiator Leak Replaced driver side window regulator. Window would not move.

Audi S4 in Texas, United States Mar 2012 - Apr 2013
Apr 2013 79000 mi US $900	Catalytic converters filled up. Then had to replace the high pressure steering return hose, then the power steering reserve tank.

Audi S4 in Oregon, United States Apr 2012 - Oct 2016
Dec 2012 74000 mi US $100	Engine not getting to operating temp due to thermostat being stuck open. Replaced thermostat. Engine gets up to operating temp.
Jul 2014 100700 mi US $25	Replaced coil pack
Apr 2016 126300 mi US $350	Replaced all front control arms, tie rods ,front sway bar links. replaced steering rack and pinion.
May 2016 127100 mi US $175	Power steering pump replaced and fluids flushed

Audi S4 in District of Columbia, United States Jun 2009 - Dec 2012
Jun 2009 37800 mi	Dead battery replaced under warranty
Mar 2010 40000 mi US $400	Rough ride and rough idling
Sep 2012 54000 mi US $1200	Not shifting smoothly. "slamming" into gear, especially on downshift
Dec 2012 54000 mi	Transmission not shifting smoothly, got another car.

Audi S4 in New York, United States Jan 2010 - Sep 2014
Aug 2011 38100 mi US $1500	Control arms Window regulator
Sep 2014 67000 mi	Bad power steering hose

Audi S4 in Virginia, United States Jan 2012 - Sep 2013
Mar 2012 76000 mi	Coil pack overloaded and caught fire. Replaced as a recall at no cost.
Aug 2013 95600 mi US $400	Starter failed, and had to be replaced.

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Audi S4 in Alberta, Canada Feb 2011 - Sep 2013
Dec 2012 126480 mi C $1250	Fuel pump was replaced and by doing so the fuel lines cracked so they were also replaced

Audi S4 in Virginia, United States Jan 2011 - Dec 2012
Mar 2011 80000 mi US $1200	One of the fan blades got loose causing noise against the radiator, apparently is a frequent complaint(?), Fan was replaced.

Audi S4 in New York, United States May 2009 - Jun 2012
Jul 2010 57300 mi	gas strut not providing enough lift to hold the hood open
Aug 2010 59000 mi US $200	glovebox lid latch replaced alloy wheel center medalion replaced two wheels 60k service performed
Jan 2011 65000 mi US $500	65k service, front pass window regulator trunk latch not latching when cold > 32degrees brake bulb blown need to remove trunk carpet to replace, drivers driving light intermittent, pass xenon headlight intermittent
May 2012 73600 mi US $1100	Starter motor failed

Audi S4 in Massachusetts, United States Jul 2013 - Jun 2017
Sep 2014 90000 mi US $285	Rebuilt front right and front axles. Inner boot torn.
Jun 2017 104000 mi US $300	Replace belt pulley and tensioner. Replace front main seal.

Audi S4 in California, United States Feb 2009 - Mar 2011
Jan 2010 US $100	Some dash and external lights stay on even when ignition is off and key is removed. This drains the battery overnight.
Apr 2010 51000 mi	Was idling rough with check engine light on, dealer replaced all 8 ignition coils under a recall. Fixed.

Audi S4 in Pennsylvania, United States Oct 2009 - Jun 2011
Nov 2009 36000 mi US $975	Upper control arm bushing was destroyed, drivers side. Passenger side was still okay. Head lights flicker on and off while driving. Both head lights went out at night while driving and had to pull over. Turning the headlight switch to the off position and back on seemed to fix the problem temporarily.

Audi S4 in California, United States Oct 2008 - Jun 2018
Mar 2012 76000 mi US $831	upper control arm bushings are torn on front suspension.
Oct 2012 77000 mi US $772	Driver side window stopped rolling up or down.
Jun 2013 80000 mi US $1000	They are worn out.
Dec 2013 85000 mi US $554	Battery went down.
Feb 2014 86400 mi US $1560	Headlights dipped on almost every turn. Needed to replace the entire headlight assembly.
May 2014 87000 mi US $120	Brake light was turned on. Brakes were being engaged automatically without being pressed. That was slowing down the car.
May 2016 105100 mi US $1100	The alignment was off for a long time. Finally it was fixed by aftermarket MOOG upper control arms.
Feb 2017 108000 mi US $2200	Power steering rack, and hoses needed to be replaced.

Audi S4 in Michigan, United States Sep 2010 - Oct 2012
Nov 2010 88200 mi US $210	Driver's window stopped working. Advised dealer that I thought it was a short. Dealer quoted $1000 for replacing Motor, actuator, and switch. Decided not to do the repair. My further investigation revealed broken wires in the door jamb.
Dec 2010 89000 mi US $180	Ordered a new wiring harness (OEM) for driver's door, and installed it myself. Everything is now working properly.
Sep 2012 99000 mi US $730	Both upper control arms replaced (front driver side).
Oct 2012 99000 mi	Timing chain guides / tensioners failed. Dealer quoted $10,000 to repair. TEN THOUSAND DOLLARS! Will most likely have to sell the car for parts. If you ask me, this is a MAJOR design flaw. I bought this V8 so it would last! The irony...

Audi S4 in Connecticut, United States Mar 2009 - Sep 2012
Apr 2009 44000 mi	Catalytic converter replaced under warranty.

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Audi S4 in Puerto Rico Aug 2013 - May 2020
Dec 2013 58000 mi US $200	Bad alternator
Apr 2015 67200 mi US $200	Damage coolant flange, replaced plus all the brakes on the car
Aug 2015 68600 mi	alternator not charging, replaced myself

Audi S4 in Texas, United States Sep 2013 - Jan 2014
Oct 2013 69000 mi US $200	Secondary radiator coolant leak. Radiator was replaced. Headlight wiring harness cracking and deteoriation, to the point of needing replacement. Replaced headlight assemblies, bulbs, ballasts on both sides.
Nov 2013 69000 mi US $1800	Compressor failed. Replaced compressor, dryer, serpentine belt, condensor. Waterpump also was defective, was replaced.

Audi S4 in Minnesota, United States Mar 2016 - Jun 2022
Jul 2016 161700 mi US $11500	Camshaft wear on cam follower fuel pump caused metal to circulate through engine and turbo requiring replacement of both with new long block, turbo and clutch was worn and replaced
Feb 2017 170000 mi US $530	Replaced starter
Mar 2017 173000 mi US $900	Clutch from AC compressor separated from compressor. Replaced AC compressor with recycled Grade A part, new receiver drier and orifice tube. Flushed system and recharged adding proper amount of oil.
Jun 2017 175000 mi US $30	Clutch interlock safety-switch replaced
Jul 2017 175000 mi	Starter failed 6 months after replaced by shop. New starter installed under warranty.
Nov 2017 178000 mi US $800	Aftermarket oil filter housing warped 14 months after installation of a rebuilt engine causing a significant oil leak between the block and housing. Shop didn't offer any discount for a failure so soon out of warranty (they replaced the motor). Shop forgot to bleed air from cooling system. Low coolant light came on during the trip home. Not going back to that shop.
Dec 2017 178000 mi US $175	replaced front rotors and pads

Audi S4 in West Virginia, United States May 2021 - Jun 2022
Apr 2021 100 mi US $150	Intake flap motor replaced.
Jun 2021 108 mi US $175	IFM intake flap motor again. Pre 8-22-05 B7 A4’s use different IFM than is commonly sold. You need one with no letter suffix in audi part number.

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Audi A4 in Pennsylvania, United States - Apr 2005
Apr 2005 200 mi	Replacement of remote key FOBs.

Audi A4 in Illinois, United States Jan 2010 - Jun 2011
Mar 2010 84000 mi US $120	PCV valve failed. Replaced with knock-off part.

Audi A4 in Great Britain Feb 2010 - Mar 2014
Mar 2010 22000 mi £100	Minor oil leak from the oil filter due to improper seating of the oil filter at previous service.
Apr 2010 23000 mi £400	The age old problem of the coolant flange seal failing. Replaced along with a minor oil seal. Car properly fixed this time. If you are leaking coolant from the back of the engine block on this age / engine, then it is the flange.
Nov 2012 42700 mi £600	Alternator faulty. Replacement also faulty, no more alternators in the UK, so car at Audi garage for 6 days.
May 2013 46500 mi £500	Anti-roll bars bush failed Rear brake lines perishing
Sep 2013 49000 mi £34	PCV valve failure. Idle very poor. Appears to be a common problem easily fixed with a replacement part.

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Audi A4 in California, United States Aug 2015 - Jul 2019
Dec 2016 91000 mi US $105	PCV valve oil leak. PCV valve was replaced
Feb 2017 92000 mi US $200	All ignition coils replaced to remedy multiple cylinder misfire

Audi A4 in California, United States Aug 2007 - Mar 2014
Nov 2008 42000 mi	Check engine light came on and was resolved with a programing modification

Audi A4 in California, United States Nov 2007 - Oct 2017
Feb 2008 30000 mi	Intermittent error from "Intake Flap Motor." Dealer performed ECU flash. CEL came on again next day. Intermittent error from "Intake Flap Motor." Dealer replaced flap motor.
Jun 2009 44000 mi	Broken motor mount was replaced under warranty. Glove compartment door hinge cracked. Glove compartment door replaced under warranty. Subframe bolts found loose; tightened.
Oct 2010 56000 mi	Difficulty filling gas tank. Dealer replaced fuel tank evaporation canister. Suspension bushings worn. Parts ordered but not yet replaced. Suspension bushings replaced
Jun 2011 62000 mi	Low beam headlight intermittently goes out. Problem could not be replicated or solved by dealer.
Jul 2012 71000 mi US $730	Failing low pressure fuel pump and pressure sensor replaced.
Aug 2012 71800 mi	Failing high pressure fuel pump and camshaft Failed turbo valve Failed coolant temp sensor
Mar 2013 77000 mi US $600	Emissions sensor causing car to run rich -- replaced. Side airbag sensor malfunction - replaced
Aug 2013 81000 mi	Low presssure fuel pump replaced. Fuel pump was replaced about 12 months ago under warranty and replaced again under warranty.
Jul 2014 93300 mi	Left headlight flickers, goes out.
Oct 2014 95500 mi US $943	Worn throttle body; replaced.
Sep 2015 107000 mi US $1000	Replaced engine mounts
Mar 2016 115000 mi US $1900	Replaced fuel pump Replaced CV joint boots Replaced window regulator
Oct 2017 133000 mi US $1900	Rear hatch latch not working, replaced. Vacuum pump replaced CV boots replaced

Audi A4 in Massachusetts, United States Aug 2007 - Jun 2011
Aug 2008 105000 mi US $1075	Went in for alignment and oil change - ended up getting alignment, 4 new tires, front headlight (small bulb) and wash
Feb 2010 147000 mi	Adaptive headlights starting to flicker.

Audi A4 in Minnesota, United States Feb 2009 - Jun 2011
Apr 2009 36000 mi US $100	Oil seal leak in the engine
Jul 2009 39000 mi US $50	Oil leak related to a cam shaft seal. The head was damaged around the seal so the head was replaced.
Mar 2010 49000 mi US $50	Cruise control was not working due to sticky clutch switch

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Audi A4 in Illinois, United States May 2011 - Feb 2020
Feb 2012 55000 mi US $895	HID control unit needed to be replaced.
Feb 2013 65700 mi US $140	Brake lights would come on and stay on. Brake light switch replaced.
Apr 2013 66500 mi US $600	Power window regulator failed
Jan 2015 66500 mi US $350	Headlight bulb replaced
Sep 2016 85000 mi US $900	Starter failed and had to be replaced
May 2017 87200 mi US $5	Corrosion/arcing in taillight required cleaning and repairing plug
Nov 2017 88600 mi	Recall
Dec 2017 88700 mi	Corrosion reoccurrence in rear taillights
Jun 2018 91000 mi US $300	Passenger front window regulator replaced and window lockout switch replaced. Replace left front control arm bushings

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Audi A4 in Florida, United States Apr 2008 - Oct 2009
May 2008 35000 mi	Air Compressor was replaced under warranty. AC would not cool when car was started but would be ice cold once underway. (after higher than idle revs for a bit)
Jul 2008 37000 mi	Two ignition coil packs where replaced under warranty.
Sep 2008 39000 mi	Transmission Control Module - took more than a week to order and get from Germany. These things are matched to car's VIN number?!? A day or less to swap. Got CEL; drove straight to dealer; they took care of everything including identical car as loaner.
Oct 2008 41000 mi	Cooling steel braided lines for Turbo where kinked and leaked both coolant and oil onto manifold creating a lot of smoke. Suspect damage done in previous repair...
Aug 2009 48000 mi US $375	window regulator replaced; pricy! car 2 weeks out of warranty... dealer gave 10% discount

Audi A4 in Texas, United States Nov 2009 - Mar 2010
Dec 2009 61000 mi	Transmission Neutral Position Sensor Stop Light Turns ON after parking overnight, on lower temperatures. Cooling System Thermostat

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Audi A4 in California, United States Mar 2010 - Jun 2012
Jul 2011 70000 mi US $495	Check engine light, suddenly sluggish up hills. Replaced turbo cutoff valve. Unclog leak detection pump and replace its hose.
Nov 2011 74300 mi US $78	Diagnostic for sluggish performance. No problem found. Symptom persisted for a couple of weeks. Not currently an issue. Expect full resolution at next service (major- plugs, etc.) Installed new 'Console Armrest door Leatherette w/o mobile phone Pl' due to broken latch. Is this just Wear and Tear? -- Less than 75,000 mi., 5 years old; very well cared for; you decide. (No trim issues on older, higher mi. Acura.)
May 2012 81300 mi US $112	Repeated tail light failure. Replaced Bulb Holder (8E5 945 257 C) - $59.50
Jun 2012 83000 mi	Replace PCV, also a TSB. Fuel pressure sensor

Audi A4 in Minnesota, United States Oct 2009 - Mar 2010
Nov 2009 62000 mi US $336	Failed crankcase pressure regulating valve.

Audi A4 in Rhode Island, United States Nov 2010 - Jun 2011
Dec 2010 80000 mi US $3400	complete engine failure due to sludge build up

Audi A4 in Georgia, United States Mar 2015 - Jul 2015
Apr 2015 143000 mi US $300	Carbon buildup on intake caused repeated misfire on cyl.4, POOR performance, POOR mpg, high sulfuric-exhaust odor (NOx). Intake Cleaned, #4 fuel injector replaced, 1 ignition coil replaced, plugs gapped/cleaned Root:CARBON BUILDUP
May 2015 143800 mi US $150	Broken Headliner retainer trim piece, broken blank insert from upper center console Charge Air/Intake Hose Leak; Replaced All Charge Air Hoses & Lower PCV Hose
Jul 2015 148000 mi	CV joint needed replacement, clicking noise while turning Worn intake camshaft timing chain & tensioner causing rattle on startup and after engine reaches operating temp; Oil leak from rear vacuum pump assy; #2 Cylinder misfire as per OBD; Small vacuum leak still persists as per OBD On Board computer shows error for tail lamp failure when no bulb failure exists; Headlamp bulb assy. broken from retaining pcs causing headlamp to move freely; Coolant leak from rear of engine @ water flange;

Audi A4 in Idaho, United States Sep 2012 - Jul 2018
Mar 2016 129000 mi US $179	Diverter valve replacement Oil filter assembly housing leaking
May 2016 130400 mi US $1600	Replaced front upper and lower control arms, both driver and passenger side
Dec 2016 137000 mi US $100	Replaced PCV Leaking exhaust manifold gasket

Audi A4 in Massachusetts, United States Sep 2005 - Sep 2017
Oct 2005 5000 mi	Keyless entry stopped working on both key fobs. Dealer replaced keys, was a known problem.
Jan 2006 10000 mi	Sound system did not work in very cold weather - would turn on but no sound came out. Dealer replaced amplifier under warranty.
Dec 2006 20000 mi	Leaked coolant in cold weather. Dealer replaced leaking engine flange under warranty.
Apr 2007 30000 mi	Brake lights would turn on spontaneously at night while the car was parked. Dealer replaced brake switch under warranty.
Aug 2008 57000 mi US $85	Check engine light was on. Scanned the codes, indicated boost pressure too low. Turbo Recirculating valve (diverter valve) diaphragm was torn. Replaced valve.
Apr 2009 71000 mi US $497	Right Front Wheel Bearing was bad. Very loud noise while driving that got worse over the past several hundred miles.
Dec 2009 82000 mi	Passenger headlight out.
Mar 2010 85000 mi US $150	Check engine light came on, car idled high. Replaced broken PCV valve
Nov 2010 95000 mi US $100	Had to replace worn high pressure fuel pump intake cam follower after finding metal shavings during oil change
Feb 2012 109000 mi US $308	Check Engine light on. Intake Manifold Control Motor (adjuster) had failed. Obtained part from dealer and replaced it myself. There is a warranty on this part for some VINs but not mine.
Mar 2012 110000 mi US $11	Timing belt replacement, including water pump and tensioner. Replaced thermostat; was stuck open. Replaced accessory belt pulleys due to excessive wear and noise. Driver's side headlight out
Aug 2013 133600 mi US $75	Code p0299. Replaced diverter valve
Feb 2015 156700 mi US $2100	Replace both front upper and lower control arms. Broken downpipe and hole in y pipe Both front power window regulators broken
Jun 2015 161000 mi US $596	Drivers side wheel bearing very noisy. Bearing was seized to hub. Replaced both bearing and wheel huv.

Audi A4 in Illinois, United States Feb 2009 - Sep 2014
Mar 2009 47000 mi	Seat belt switch, push button assembly.

Audi A4 in New York, United States Jan 2008 - Jun 2014
Oct 2008 36449 mi	Left Brake Light and Camchain Tensioner
Oct 2009 48000 mi	Crankcase vent regulating valve(PCV).
Apr 2010 51500 mi US $50	Corrosion on Cam Lobes (Replaced Camshaft) Valve Cover (Replaced) Intake Flap Motor(Replaced TSB:2016868)
Oct 2010 57000 mi US $50	Water Pump Replaced Right Engine Mount Replaced
Mar 2011 61000 mi US $50	Front Sway Bar Links Low Pressure Fuel Sensor Brake Light Switch
Apr 2012 72000 mi US $130	Turbo Bypass Valve(Diverter Valve)Replaced with Revision D Part Number. Driver Front Window Regulator
May 2012 72700 mi US $326	Front Left(Driver) Wheel Bearing Changed. Squeaking when breaking.
Oct 2012 76300 mi US $420	In-Tank Fuel Pump + Seal + Coupling Nipple (Replaced: 8E0919051CQ, 1J0919133B, 8E0201263G) In-Tank Fuel Pump + Seal + Coupling Nipple (Replaced: 8E0919051CQ, 1J0919133B, 8E0201263G)
Dec 2012 78000 mi US $52	Trunk Latch (Replaced) Does not latch when very cold outside. Trunk Latch (Replaced) Does not latch when very cold outside.
May 2013 82400 mi US $18	Oil Cooler Gasket Ignition Coil(Cylinder #1)
Jun 2013 84000 mi US $498	Coolant Hose Flange(06D121132C:Back of engine) and related hardware. CTS, clip, small hose, x2 hoses, x2 grommet.

Audi A4 in New York, United States Sep 2008 - Jun 2011
Nov 2009 65000 mi US $1000	High pressure fuel pump cam follower face was worn completely through resulting in damage to the cam lobe. Cam and follower were replaced.
Jan 2011 89000 mi US $300	Xenon bulbs replaced to resolve intermittent headlight fault (left and right)
Mar 2011 92000 mi US $200	Rusted exhaust pipe clamp. Very noisy. Replaced clamp and cleaned up pipes. Quiet afterward.

Audi A4 in California, United States Sep 2015 - Jul 2017
Jan 2016 US $500	check engine light on. Bank 1 misfire.
Jul 2016 73500 mi US $250	ESP light comes on after running the car less than a mile. replace the Yaw sensor. Issue resolved.
Jul 2017 84000 mi	got code P0783. Car stuck at 3rd gear after stopped in the traffic for a while. Restart the vehicle and car is shifting fine. Technician reset the error code and was told to observe if the issue recurs.

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Audi A4 in Colorado, United States May 2007 - Dec 2012
May 2008 63000 mi US $400	Window regulator was shot.
Nov 2008 70000 mi US $500	Fuel distributor control unit needed replacing.
Aug 2012 117500 mi US $75	Window regulator need to be replaced

Audi A4 in South Carolina, United States Dec 2014 - Dec 2014
Dec 2014 130000 mi US $50	Window regulator was broken

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Audi A4 in Wisconsin, United States Dec 2006 - Jun 2011
Dec 2007 69000 mi US $600	Bottom Windshield Wiper resevoir cracked. All fluid leaks out now!
Nov 2010 87000 mi US $4782	Fuel valve eaten by engine; required new top end, fuel pump, filter.

Audi A4 in Missouri, United States Aug 2008 - May 2012
Nov 2008 22000 mi	Trunk does not latch. First happened in sub-freezing weather. Dealership replaced parts under warranty.
Mar 2009 26000 mi US $96	Cold start problems. Car hesitated before cranking over. Only happens in sub-freezing temp. Dealer found a TSB and reflashed ECU to a newer version. Problem solved.
Sep 2009 31000 mi US $50	Rattle/vibration from driver side window when car is moving (usually over bumps etc) or when shutting driver side door. Window regulator was replaced.
Mar 2010 38000 mi US $50	The airbag light would come on intermittently when there are passengers in the car. Dealer diagnosed: passenger seat belt tensioner was not working as intended. Dealer ordered and replaced parts. Paid my deductible for the CPO warranty.
Jul 2010 41000 mi US $50	turbo intake valve not working as intended. car shuddered at low RPM low speed. Dealer fixed under extended warranty
Nov 2010 45300 mi US $50	Check engine light comes up for a day or two than went away. Dealership measured fuel pressure & replaced sensor (under CPO warranty). CEL came back on after I got the car back. Took back to the dealership and they replaced the fuel pump.

Audi A4 in Illinois, United States Jun 2008 - Dec 2014
Sep 2014 56000 mi US $100	thermostat replaced

Audi A4 in Florida, United States Nov 2007 - Jun 2011
Jan 2008 41000 mi	radio replaced under warranty (flaking on plastic knobs)
Mar 2010 89000 mi	CEL, software fix paid for by CPO warranty.
Jun 2010 91000 mi	Airbag light on - dealer ordered "seat belt sensor" for passenger side but never followed up to install. The light has since been off.
Aug 2010 96000 mi US $50	Dealer replaced FSI fuel pump, cam follower and camshaft per TSB (original manufacturer defect) after check engine light code found.

Audi A4 in Ohio, United States Jan 2009 - Mar 2010
Feb 2009 52000 mi US $2000	Dual-mass flywheel failure. Symptoms were consistent with a slipping clutch.

Audi A4 in Connecticut, United States Oct 2007 - Apr 2008
Dec 2007 31000 mi	Engine ran rough at start up - like only two or three cylinders firing. Three restarts had same problem. After waiting a few minutes another restart had a smooth engine but the light was on. Apparently there was a TSB on this faulty "ventilation valve".

Audi A4 in Pennsylvania, United States Jan 2007 - Dec 2017
May 2007 27000 mi
Jan 2011 85200 mi US $300	Replaced purge valve
Mar 2011 91000 mi US $500	Charcoal Canister replaced
Aug 2012 105500 mi US $90	Exhaust system hanger replaced
Sep 2016 138000 mi US $450	Replaced fuel pump and fuel filter

Audi A4 in Oregon, United States Nov 2008 - Mar 2010
Feb 2009 45000 mi	Rear high mount stop light works sometimes, sometimes it does not. Seat belt warning chime beeps even when seatbelt is buckled. Truck would not latch when closing. It would have to be slammed 5 or 6 times.
Apr 2009 47000 mi	Drivers side window would not roll up.

Audi A4 in New Jersey, United States Sep 2008 - Sep 2011
Dec 2010 72000 mi US $200	Trunk latch is electronic - actuator & latch components were replaced.

Audi A4 in Georgia, United States Feb 2007 - Sep 2015
Aug 2008 48000 mi	Turbo switch valve went bad.
Dec 2011 96000 mi US $1600	Thermostat beginning to malfunction. I replaced it before warm weather/heavy driving, $828. Right passenger door lock actuator had to be replaced, $688.
Sep 2013 126000 mi US $1000	New fuel pump, replaced sensors
Jan 2014 101300 mi US $900	Oil leaks

Audi A4 in California, United States Dec 2006 - Mar 2010
Jan 2007 23000 mi	Air bag light for driver. Faulty sensor and TSB. It was poorly repaired by previous attempt at another dealer. Fixed. Door rattle from faulty latch. replaced Dome light out. Replaced.

Audi A4 in New York, United States Jan 2014 - Sep 2014
Apr 2014 135800 mi US $350	Wheel bearing on Driver side.

Audi A4 in Pennsylvania, United States Feb 2014 - Dec 2015
May 2014 120800 mi US $250	AC system was running low on refrigerant. No leak was detected.

Audi A4 in New York, United States Mar 2006 - Jan 2008
Sep 2006 20000 mi	coolant leakage
Nov 2006 23000 mi	license plate light socket short.

Audi A4 in Illinois, United States Jun 2009 - Jan 2012
Mar 2009 40000 mi	Replaced the PCV valve under warranty. Also did the 35k mile service. Spark plugs replaced.
Jun 2009 51000 mi	Replaced the turbocharger K03 under warranty @ 51,000 miles. Did the 45,000k service.
Aug 2009 51000 mi	Purchased high pressure fuel pump and filter from the dealer and then installed at Rennart. Date is 8/24/2009 Replaced the fuel pressure sensor - Audi dealer - 8/4/2009
Jul 2010 73000 mi US $150	Valve replaced, fuel line
Aug 2011 89500 mi US $550	Reflashed ECU with Revo stage 1 $550 - 8/12/2011
Dec 2011 96000 mi	Changed the high pressure fuel check valve with an upgraded unit. Did not solve fuel cut issues, may need larger fuel pump due to engine software upgrade.

Audi A4 in Ontario, Canada Jan 2010 - Jan 2014
Jun 2010 65720 mi	Buildup on intake valves resulting in misfires on cylinder #3 during first five minutes after a cold start.
Nov 2010 70060 mi C $25	Clutch switch sensor replaced.
Dec 2010 70680 mi C $85	Replace trunk latch
Feb 2011 73160 mi	Coolant thermostat stuck open, started to act up the first winter after the warranty expired to the point I had very little heat in the winter.
Sep 2011 81840 mi C $80	Replaced trunk latch as it wouldn't latch properly when the temperature dropped below freezing and fixing it before winter arrives.
Oct 2011 84940 mi C $520	#3 high pressure fuel injector faulty and replaced. Believe this injector had issues for several years and finally started to get worse. Vacuum pipe (8E0 611 931 FQ), vacuum line (8E0 201 934 L) replaced due to dealer breaking a connection on the vacuum line which they proceeded to use jbweld to fix it when timing belt was done June 2010. Replaced failing high pressure fuel injector on cylinder #3
Aug 2012 96800 mi C $760	Front left/right wheel bearing worn and replaced. Track day probably had a factor in this.
Oct 2012 99200 mi C $30	Was getting subtle misfires for a month, then it gave up due to a coilpack failing. Tow home cost me $500 because of a $30 part failing.
Nov 2012 100000 mi C $25	Another coilpack failed. Same one from the recall back in December 2009. Had spare coilpack in car this time to avoid being stranded on the side of the road.
Dec 2012 100440 mi C $210	Xenon bulb replaced
Dec 2013 112840 mi C $800	L/R motor mounts replaced, hood strut, oil change
Jan 2014 100440 mi	PCV replaced

Audi A4 in California, United States Nov 2010 - Sep 2016
Mar 2013 102000 mi US $950	Control arms worn Intake flap motor failed. It's not affecting drivability fortunately. I plan to replace it soon, haven't had the time to drop off the car. It's emission related but my fuel mileage has suffered a bit.

Audi A4 in California, United States Oct 2007 - Mar 2010
Jun 2007 25000 mi	Hard to downshift from 3rd to 2nd, hard to shift from 1st to 2nd. Replaced the gearbox. Not fixed Adjusted the shifter pattern plate. Fixed

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Audi A4 in New Jersey, United States Nov 2007 - Apr 2013
Dec 2007 25000 mi	2 faulty ignition coils were causing cylinder misfires which lead to the engine being rough at idle. The ignition coils were replaced under the manufacturer's warranty.
Jan 2009 34000 mi	Trunk latch was defective and would not stay closed. Replaced under warranty.
May 2009 37000 mi	Driver side window regulator replaced under factory warranty Outstanding work: Torn vinyl side bolster Torn vinyl side bolster - quoted $200 to replace. Complained to Audi of America about not being covered under warranty. No solution provided.
Apr 2011 55500 mi	Rip in driver side bolster re-opened after being repaired twice. Dealer paid for it and considered it "goodwill". Tried to blame the problem on me (not manufacturing defect) and said this is the last time it will be paid for.
Oct 2011 62000 mi US $650	Oil leaking from manifold. Extensive labor charges incurred to repair a $15 gasket that prematurely failed.
Oct 2012 69500 mi US $300	Engine is slow to turn over. Replaced fuel sensor and fuel filter. Declined throttle body and injection cleaning service. Problem still exists
Mar 2013 73000 mi	Rear Cam oil leak Valve cover oil leak Rear Differential leak
Apr 2013 73000 mi	Rear cam oil leak not repaired.

Audi A4 in Arizona, United States Sep 2014 - Dec 2014
Sep 2014 100000 mi US $300	Rear Sunshade Motor Failed

Audi A4 in Delaware, United States Jul 2011 - Oct 2017
Oct 2012 93300 mi	Oxygen sensor replaced, high pressure fuel pump replaced, vacume hose replaced. Engine Light on dashboard stays on. Computer diagnosis indicates fuel pump repair required.
Jan 2013 95300 mi US $850	Broken arm on intake manifold air dam In-tank fuel pump was not providing proper pressure of fuel feeding to engine
May 2014 102100 mi US $163	Replace Fuel Tank Seal
Dec 2014 106000 mi US $709	Replace Right Bank cam solenoid, reset valve timing, replace valve cover gaskets.
Oct 2016 112000 mi US $97	Airbag caused dashboard warning light. Connections cleaned and resolved issue

Audi A4 in Minnesota, United States Dec 2015 - Feb 2017
May 2016 127000 mi US $400	Routine maintenance of new spark plugs revealed a failed VALVE COVER GASKET on one side leaking oil. Gaskets on both sides of the v6 engine were replaced. Prior minimal oil consumption reduced to near zero in subsequent 4k miles of driving.
Aug 2016 132900 mi US $350	Windshield wiper motor failed. New wiper motor and linkages installed. Problem corrected.

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Audi A4 in Great Britain Nov 2015 - Dec 2017
Feb 2016 92900 mi £1300	Esp sensor needed replacing

Audi A4 in New South Wales, Australia Feb 2016 - Jun 2017
Feb 2016 65720 mi A $3	Front 02 sensor (B1S1) fail
Mar 2017 69440 mi A $2000	PCV system replace

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Audi A4 in Alabama, United States Dec 2009 - Sep 2017
Mar 2012 80000 mi US $70	belt tension pully bearing started squealing. changed pully
Jul 2012 80000 mi US $1600	replaced turbo

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Audi S4 in Maryland, United States Mar 2010 - Jun 2011
Apr 2010 51000 mi US $50	Airbag warning light illuminated.

Audi S4 in New York, United States Aug 2012 - Dec 2012
Oct 2012 58700 mi US $300	Lower control arms

Audi S4 in Alabama, United States Jan 2013 - Dec 2013
May 2013 119800 mi US $250	Ballast needed to be replaced
Sep 2013 124000 mi US $50	Exhaust clamp

Audi A4 in Illinois, United States Jun 2014 - Apr 2015
Jan 2015 US $1300	HPFP went bad. Needed to replace it.

Audi A4 in Minnesota, United States Sep 2013 - Sep 2014
Mar 2014 75000 mi US $100	Oil leaking around valve covers

Audi S4 in Texas, United States Jul 2012 - Aug 2012
Aug 2012 78000 mi US $7500	Check engine came on and 20 miles later, car died. Cam shaft seized, something to do with not getting oil, no oil pressure light came on though, pistons bent the valves, got a new cylinder head and cam shafts. turbo seized also. rebuilt.

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Audi A4 in Michigan, United States May 2008 - Jun 2011
Nov 2010 75500 mi US $250	fuel pump failure; replaced pump under extended warranty and fuel filter out of pocket expense.
Dec 2010 78000 mi US $50	Glove box hinge break- replaced under warranty

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Audi S4 in Taiwan Oct 2016 - Nov 2016
Oct 2016 50220 mi $17000	The air con stopped working, ECON light always on and warm air comes out. The coolant fan was replaced. A leak in coolant pipe was found and replaced. Oil around engine and turned out the valve cover gasket has gone bad, replaced it and its been fine since.
Nov 2016 50220 mi $4000	The vacuum pump was leaking oil, noticed by oil on transmission and on the wiring harness beneath the vacuum pump. Bought the parts online and replaced it according to DIY found on audizine forum.

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Audi S4 in Washington, United States Apr 2011 - Aug 2013
Jun 2011 75000 mi US $250	Intermittent starting problems due to faulty engine speed sensor. Repair pending approval by extended warranty provider. valve covers leaking oil. Also peeling and blistered paint. Extended warranty provider denied coverage because leakage "minimal," so not fixed. Upper radiator hose leaking coolant. repaired after approval for repair by extended warranty provider.
Jul 2011 75700 mi	Crank position sensor replaced Window washer fluid began leaking. Determined leak was from faulty pump. Pump replaced.
Dec 2011 82000 mi US $110	Replaced weak battery
Aug 2013 106000 mi US $700	check engine light, engine began misfiring. Diagnosed as failed plugs and replaced all 8 spark plugs. Replaced valve cover gaskets to address worsening oil weeping.

Audi S4 in South Carolina, United States Nov 2008 - Apr 2016
Oct 2008 40000 mi	Passenger Window Regulator New Window Lock Switch New Front Upper Control Arms New Glove Box Door
Jun 2009 43000 mi US $28	Hood strut failure. Ordered new hood strut and installed. Problem solved.
Oct 2009 45000 mi US $300	A/C Compressor malfunction. Was operating intermittantly, repaired under CPO Passenger Control arm replaced under CPO
Apr 2010 47000 mi US $800	Replaced serpentine belt, pulley and tensioner Replaced valve cover gaskets
Apr 2016 64000 mi US $135	Replaced valve cover gaskets, air filter and cabin filter

Audi S4 in Denmark Oct 2012 - Mar 2014
Jan 2013	Aux cooler pasenger side changed due to leaking.

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Audi S4 in Ontario, Canada Jul 2014 - Jul 2015
Sep 2014 73160 mi C $240	Blown power steering return line.
Mar 2015 80600 mi C $2875	Clutch, flywheel, clutch release bearing replaced. Replaced with B7 parts, as they are considered an upgrade on a (B6) S4 with higher clamping load and a slightly lighter flywheel.
Jun 2015 83080 mi C $100	Power steering pump whining due to Wrong type of fluid used during line repair last fall. Flushed power steering system with proper fluid and filled with correctly specified fluid.
Jul 2015 83080 mi C $600	Replaced left and right front upper control arms. Rubber bushings were worn out.

Audi S4 in Virginia, United States Jun 2014 - May 2015
Apr 2014 89000 mi US $1000	Fuel Pump
Jun 2014 95000 mi US $65	Check Valve (Y-Valve)
Jul 2014 93000 mi US $2125	Timing Components/Adjuster Valve stem seals. Clutch/PP replaced Valve Stem Seals Timing Components
Aug 2014 93000 mi US $3500	When replacing valve stem seals, we noted that my exhaust valve couldn't hold pressure. Led us to do a compression and additional leak down test. Then confirmed bent exhaust valves, had to rebuild my cylinder heads. Cylinder Heads
Sep 2014 94000 mi	Bad tensioner Bad Tensioner
May 2015 96000 mi US $150	Crank Position Sensor?

Audi S4 in California, United States Sep 2010 - Sep 2021
Nov 2010 65000 mi US $1600	Front passenger head light would fail after 1 to 2 hours. This is a failure mode of a bad Xenon headlight.
Jun 2011 70000 mi US $1100	Replaced Full set of control arms. Boots in bad shape, the Repair shop said.
Mar 2012 74000 mi US $400	Front passenger wheel bearing wore out Drivers side sun visor became lose.
Jan 2013 83000 mi	Recharged the AC but still doesn't blow very cold. Probably needs more work. Slight smell of coolant when heat is on.
Dec 2013 92000 mi US $1100	Valve cover gaskets need replacing Hatch latch does not open when sun is shining on the hatch. replace servo, didn't fix second replacement replaces another switch
Apr 2015 100200 mi US $1000	Oil gasket in V of engine was leaking. Need to take off throttle body replace oil gasket
May 2015 101000 mi US $220	Every year I need to get my AC recharged. The shop has looked for the leak for the last 4 years and has never found, so I will go in to the shop in late spring and get a recharge.
Jul 2016 106300 mi US $1400	Both lower front radiators developed leaks and needed to be replaced.
Sep 2016 108000 mi US $3	Hose broke off from windshield washer fluid bottle

Audi S4 in Texas, United States Jul 2009 - Dec 2011
Nov 2009 88000 mi US $100	the driver window regulator (window stopped rolling up)
Mar 2010 95000 mi	seat heaters did not work
Jan 2011 US $300	Replace valve cover gaskets (leaking bad), replace serpentine belt and related components as preventative maintenance. Replace starter (intermittent failing).
Aug 2011 111000 mi US $1200	Replace all 4 front upper control arms. Also required the bearing carrier on the driver side to be replaced due to a heavily corroded pinch bolt. replace all 4 front upper control arms

Audi S4 in Minnesota, United States Sep 2008 - May 2015
Mar 2010 54000 mi	Wiper linkage frozen at one of two pivot points.
Aug 2010 58000 mi	Coil pack failure, all coil packs replaced under recall notice. Car was due to go in for the recall 7 days later, but one coil pack decided to fail prior to the repair appointment.
Apr 2011 66000 mi	Wiper mechanism frozen at one of the two pivot points. Removed assembly from car, disassembled & lubricated, and reinstalled back into car.
Jul 2011 67000 mi	A/C blows hot air all of a sudden. Shop checked system, plenty of R134 in system. Shop not sure what the problem is, need to bring car back for further diagnostic work.
Aug 2011 68000 mi US $200	A/C was still not working properly. Took to dealer as previous mechanic at non-Audi shop felt there was something wrong with the system (and not just low on R134a). Dealer could find no issues other than low R134a level.
Sep 2012 81000 mi US $250	Airbag light on, replaced one of the passenger side airbags.
Dec 2012 84000 mi US $3700	Flywheel defective, made engine vibrate. Dealer replaced flywheel, clutch, bearing and slave cylinder.
Oct 2014 94200 mi US $400	Power steering hose burst, hose was replaced.

Audi S4 in Netherlands Jun 2013 - Jul 2015
Nov 2013 99200 mi €450	part of wiring loom to ecu needed replaced water damage
Jul 2015 110980 mi €5000	cam timing out, replace a whole bunch of parts, engine removal required to complete

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Audi S4 in Montana, United States May 2011 - Oct 2011
Sep 2011 95000 mi US $360	Replacement of Crankshaft Position Sensor. Intermittent no-start condition and a P0322 ECU code.

Audi S4 in California, United States Dec 2012 - Jun 2018
Jan 2013 64000 mi	Both CV boots were torn
May 2015 67000 mi US $400	Both front O2 sensors showed varied fuel trims
Oct 2015 68200 mi US $55	Coolant overflow tank developed a small crack at the top and was leaking coolant/steam after short drives, replaced coolant tank with Genuine Audi unit at a cost of $55 shipped.
Sep 2016 70000 mi US $6	Upper coolant flange failed, part replaced

Audi S4 in New Jersey, United States Sep 2012 - Apr 2013
Apr 2013 75000 mi US $1000	Control arms

Audi S4 in North Carolina, United States Mar 2010 - Jul 2010
Jul 2010 62000 mi	Water pump replacement pending when sold. It was leaking a small amount of coolant, about a 3-4 oz. per week.

Audi S4 in California, United States Jul 2010 - Jul 2011
Aug 2010 76000 mi	Replace compressor. replace compressor
Mar 2011 84000 mi	Driver seat heater failed. New heater grid replaced under warranty

Audi S4 in Texas, United States Sep 2010 - Jun 2011
Oct 2010 68000 mi	High pressure steering hose failed, had to be replaced. $120 in parts, $230 in labor. Pass cat replaced under emissions warranty.
Apr 2011 76000 mi US $45	Front passenger window regulator failed. Cabling found broken and frayed during replacement.

Audi S4 in Illinois, United States May 2009 - May 2013
Jun 2009 44500 mi US $220	Replaced a Coil Pack
Jul 2009 45300 mi US $1000	Air Bag Light on-Replaced Air Bag Sensor, Leaking Sealant/Coolant Gasket, Replaced Tailight bulb, Performed 45,000 maintenance sErvice with brake flush.
Dec 2009 47000 mi	Dealer replaced seven coilpacks due to recall.
Sep 2010 51000 mi US $550	Replaced wiper linkage mechanism after wipers froze.
Jun 2011 57000 mi US $300	Passenger front window regulator not working

Audi S4 in Wisconsin, United States Oct 2010 - May 2012
Feb 2011 76000 mi US $400	Power steering hose cracked and lost all fluid instantly. $100 hose, and $300 labor

Audi S4 in Maryland, United States Mar 2009 - Mar 2012
Jan 2009 57000 mi US $500	Replace the front sway bar endlinks.
Feb 2012 115000 mi US $960	Power steering failed. It was the result of the return hose from the steering rack to the pump. Hose replaced.

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Audi S4 in Iowa, United States Aug 2010 - Dec 2016
Aug 2013 93000 mi US $350	Driverside window glass would not rise up.
Apr 2014 97000 mi	Door window switches, locks, sensors on driver's not working

Audi S4 in Illinois, United States Mar 2008 - Jul 2012
Jun 2008 29405 mi	anti-rattle clips were squeaking. replaced under warranty.
Sep 2008 33214 mi	driver's switch for a rear window stopped working. switch replaced under warranty.
Oct 2008 35159 mi	headlamp assemblies fogged up. replaced under warranty.
Mar 2009 41315 mi	windshield wiper motor seized. replaced under warranty.

Audi S4 in Illinois, United States Nov 2010 - Dec 2011
Jun 2011 81000 mi US $19000	Engine and clutch replacement. Engine had a crack in cylinder wall 1. Clutch replaced while engine was replaced as preventitive. No previous clutch failure.

Audi S4 in Kentucky, United States Mar 2010 - Sep 2011
Oct 2010 50500 mi US $110	Drivers' side window regulator failed. New regulator installed
Mar 2011 54000 mi	Headlights were wet inside. Sealed the adjustment screw with silicone.
May 2011 56600 mi US $540	High pressure hoses & seals of Power Steering were leaking a lot. After starting the (cold) motor, it rattled for about 2-3 seconds. Did an oil & oil filter change and changed from 5W30 to 5W40. After starting the (cold) motor, it rattled for about 2-3 seconds. Did an oil & oil filter change and changed from 5W30 to 5W40. Power steering system was leaking. Hoses and seals have been replaced.

Audi S4 in Texas, United States Aug 2016 - May 2017
Sep 2016 136000 mi US $180	Severe shaking from engine when accelerating, CEL. Was only a spark plug causing a misfire, throwing the CEL. Replaced all spark plugs.

Audi S4 in New Jersey, United States Apr 2010 - Jul 2010
Jul 2010 110000 mi US $1800	AC clutch seized. Replaced bent control arms and various bushings. When sold the driver door handle would sometimes not work from the outside.

Audi S4 in Alberta, Canada Apr 2009 - Feb 2011
May 2009 56420 mi	Exessive oil consumption, car needs a new short block according to Audi. Audi has denied warranty but dealer paying since problem documented and started at 41k.
Jun 2009 56420 mi C $2000	excessive oil use, engine replaced.
Jul 2009 60140 mi C $1000	AC failed, requires new compressor $1400 item, plus costs of a dryer. http://audiwarranty.blogspot.com CEL codes P2097 Description: Post catalyst fuel trim system too rich P2098 Description: Post catalyst fuel trim system too lean audiwarranty.blogspot.com Car brought to a private repair shop for service, replaced a part of the AC unit, but problem persists, car needs a new AC compressor
Sep 2009 61380 mi	Dealer has not been able to diagnose the problem, car still throwing codes after 200 to 400kms of driving. See my blog at http://audiwarranty.blogspot.com
Nov 2009 61380 mi	Problem still ongoing, now starter is failing, that will be next repair. http://audiwarranty.blogspot.com
Dec 2009 63240 mi	New A/C compressor.
Jan 2010 63540 mi	Car would not brake, shop had bled brakes but not topped up master and as a result brakes did not work well. Did job myself, took a couple hours to bleed all 4 corners. Starter failure, car would not start for a long time when cold, replaced clutch switch, checked battery, then replaced starter problem solved. Actuator was stuck open and car would not come up to temperature, shop replaced faulty actuator problem solved. possible cause because car was apart for a long time waiting for short block at dealer for oil consumption.
Apr 2010 65300 mi C $800	HVAC pressure switch failure and system leak
Aug 2010 66640 mi C $400	Failed crankcase regulator valve, caused oil leak from valve cover gaskets. Replace regulator will wait and see if valve cover gaskets need to be replaced.

Audi S4 in Wisconsin, United States Apr 2009 - Oct 2009
Apr 2009 43000 mi	The windshield wiper transmission/motor went out and needed to be replaced.
May 2009 44000 mi US $50	Power steering hose broke. Lots of labor involved in fixing

Audi S4 in Maryland, United States Mar 2009 - Mar 2010
Jun 2009 44000 mi US $440	Headlight sensor was bad. Replaced rearview mirror.

Audi S4 in Delaware, United States Mar 2010 - Apr 2018
Aug 2010 31500 mi	Car needs a new AC compressor A/C condenser replaced
Sep 2010 34000 mi	Plastic part that surrounds fog light fell off. Took part to dealer and was reattached in minutes with a new fastener that had broke.
Jan 2011 US $50	Burning oil odor - valve covers replaced under warranty. Driver seat heater not working. Seat heating element was replaced
Nov 2011 39300 mi US $100	Window regulator was broken. Covered under Audi Pure Protection Gold Warranty
Sep 2012 46000 mi US $400	Glove box door was broken and had to be replaced.
Nov 2012 47100 mi US $500	Mass Flow Sensor had to be replaced
Dec 2013 57000 mi US $800	Power steering cooling return line broke.
Jul 2014 59200 mi US $1000	Replaced upper control arms - all 4 Crank position sensor replaced

Audi S4 in California, United States Aug 2014 - Nov 2014
Oct 2014 104000 mi US $20	coolant expansion tank hairline fracture and leak

Audi S4 in California, United States Nov 2014 - Mar 2015
Dec 2014 104000 mi US $600	brake master cylinder failure

Audi S4 in Virginia, United States Jul 2013 - Dec 2016
Aug 2013 98000 mi US $1428	Slow loss of engine coolant, but no drips or puddling. Turned out to be passenger side auxiliary radiator was coming apart at the seems, so had it replaced. Check engine light coming on, then going off a few days later. Trouble codes were for misfire in cylinders 1 & 2. Ignition and Fuel systems both checked out fine, but exhaust check showed passenger side catalytic converter was very clogged. car in to dealer for 95K mile service check. They found worn out upper control arm bushings on passenger side. Estimate for replacing was $1383. They said would not pass VA state inspection, so recommended to replace. car into dealer for 95K mile service. They found DTC's for failing radiator fan control module. However the car has not been running hot or giving any indication of issues with cooling fan. Dealer estimate of $703 to replace.
Sep 2013 98000 mi US $275	power steering hose ruptured between cooler and steering rack. Obtained replacement hose myself and performed the work at a friends garage. Upper control arm bushings badly deteriorated. Flagged as an issue on annual safety inspection. Replaced all 4 upper control arms (both sides) for $300. Work done by owner at a friends garage.
Oct 2013 98000 mi US $2200	passenger side down pipe / catalytic converter severely clogged, causing DTC's and bad engine misfiring. Replaced entire exhaust system with stainless after market system for price of just the 1 factory down pipe. reverse lights not working, replaced reverse light switch at the 6MT transmission.
Nov 2013 98000 mi US $30	Plugs were badly fowled due to clogged down pipe on passenger side. The exhaust system had been replaced but afterwards the engine still did not run smoothly, so all spark plugs were replaced, which fully resolve the issue.
Jun 2014 105000 mi US $140	Front Driver side window regulator went out. I was able to get a replacement part online and performed the repair myself.
Mar 2015 114000 mi US $180	Badly worn lower control arm bushings, driver side. Replaced both lower control arms, drivers side.
Apr 2015 114300 mi US $1800	total clutch / pressure plate failure, which required replacement of both as well as flywheel. Driver's side 1/2 shaft / drive axle had worn CV joints and torn CV boot. Replaced entire 1/2 shaft.
Nov 2016 131000 mi US $575	CV boots on passenger side split wide open, slinging great all over the place... Axle as a whole was fine, but the cost of replacing just the boots compared to a new shaft was not much different, so opted for the new shaft assy.

Audi S4 in Rhode Island, United States Jan 2012 - Apr 2012
Feb 2012 90700 mi	dealer tried the cam-position sensors and the clutch sensor. turned out to be the starter

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Audi S4 in Washington, United States Sep 2010 - Jul 2018
Sep 2010 26000 mi US $300	Engine has whine/whirl sound. Dealer acknowledged but cannot fix. Does not downshift on incline in drive; RPM's will drop below 1,000. Have to manually downshift or engine lugs. Sport mode car will not up-shift until RPM's exceed 4K.
Jun 2011 31000 mi	4.2 liter motor makes terrible grinding noise when starting. Audi Tech Bulletin advises this is normal and caused by a slow adjusting camshaft chain adjuster. Problem so bad no dealer will trade, and, no buyer will purchase car.
Oct 2011 32000 mi	Loss of perfromance, would not shift out of 1st gear, stability control intermittent, no transmission safety switch (could shift into gear without pressing brake). Sensor replaced.
Mar 2013 41000 mi US $550	Replaced valve cover gaskets
Feb 2017 51000 mi US $2400	Upper Control Arm busings Right and left rear CO2 sensors

Audi S4 in Illinois, United States Apr 2010 - Oct 2013
Apr 2011 89500 mi US $1900	power steering failed, lots of noise, hard to steer. Towed to shop. Told the steering rack was leaking. Worst case scenario.
Dec 2011 99000 mi US $180	windshield wiper drive mechanism broken, replaced shaft
Nov 2012 105500 mi	driver front wheel bearing made noise, needed replacement
Sep 2013 113000 mi US $350	Serpentine belt failed due to oil leak on engine cam covers. Doing that fix leter.

Audi S4 in Illinois, United States Mar 2009 - Sep 2009
May 2009 45000 mi US $85	Tension strings for soft top needed to be replaced on both sides.
Aug 2009 49000 mi US $85	Replaced coilpack

Audi S4 in Delaware, United States Dec 2012 - Jan 2014
Jan 2014 75000 mi	Glass separating from convertible top. Was told it was a common issue

Audi S4 in Illinois, United States Sep 2010 - Sep 2021
Apr 2011 44000 mi	passenger window does not operate with all windows switch.
Jun 2013 55000 mi US $100	replaced ECM relay
Apr 2015 51000 mi US $1200	conv. top storage compartment. broken piece of plastic . had to order compleete trunk kit $560.00 ... oil leak
Aug 2020 62000 mi US $500	Re glue rear window
Sep 2021 64000 mi US $260	Replace 2 radiators. Main land left Motor mount

Audi S4 in California, United States Jun 2010 - Jun 2022
Jul 2010 70000 mi US $300	various hoses were leaking oil
Feb 2011 77000 mi	The front air dam under the engine came loose and was dragging. My mechanic fixed it at no charge.
Dec 2011 90000 mi US $500	Replace valve seals Fuel valve at gas tank failure
Nov 2012 102300 mi US $1521	Power steering hose broke and was replaced Driver side axle shaft failure
Mar 2013 104000 mi US $275	Replace hood strut Convertible top not operational. Diagnosed as locking system. did not repair.
Oct 2015 104000 mi US $300	Battery replace along with oil change. Other items needed fixed but the dealer was asking for my first born and she wasn't willing so I found a great independent shop.
Nov 2015 104300 mi US $5000	Had a coil over system installed along with new sway bars and control arms. Car needed an update and control arm bushings needed replacement. Locking mechanism of convertible top failed and had to be replaced
Dec 2015 104000 mi US $1750	Hood and trunk lid paint oxidized and needed repainted. Additional touch ups done and some custom work.
Sep 2016 106000 mi US $3900	Fan replaced Motor mounts Serpentine belt replaced
Jan 2017 106000 mi US $400	Car wouldn't start. After a while it would start and run for a while, then it would just shut down. Some type of small electrical part that malfunctioned.
Apr 2017 106000 mi US $1000	possible catalytic converter failure, has to go back in to further diagnose
Jun 2017 107000 mi US $2900	Catalytic converters were replaced. I went with CARB approved Magnaflow after market products Control arms and rubber bushings were replaced.
Jul 2018 108000 mi US $3000	Replaced valve covers Needed 3 liters of fluid. Can't find any leaks. First time we have put fluid in. Still don't see leaks after a couple of weeks. New OEM clamps and hoses put in along with a coolant temperature sensor because everything apart already. Unbeknownst to me, a previous mechanic had replaced the OEM clamps and hoses with non-OEM items. My current mechanic noticed some wear and suggested replacement, especially with OEM.
Oct 2021 111000 mi US $600	New radiator Seals connected to the engine. Still needs repaired.
Feb 2022 111000 mi US $500	Computer not communicating with engine and information is not available Seal from the transmission to the engine is leaking

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Audi S4 in Pennsylvania, United States May 2012 - Jul 2020
Sep 2015 61000 mi US $2700	Replaced entire convertible top because original rear window fell out and cannot be glued back in place. Also happened to our previous Audi TT. Bought aftermarket top with stitched in window, not an Audi part!
Jun 2017 69000 mi US $6000	Corrected the known design flaw in the hydraulic cam chain tensioner and chain guides. Absent corrective action, complete engine failure ($12k) could otherwise result anytime between 55k and 130k miles. Also had a new clutch installed while the engine was out of the car.
Nov 2017 71110 mi US $748	The ignition coil went bad on cylinder #8. Would have cost $278 to do just that one or, $748 to do all eight. I figured this first one was a domino and that the others would follow so we opted to be preemptive and do them all.

Audi S4 in Ohio, United States Sep 2011 - Jan 2013
Jan 2013	Rear windshield coming unglued.

Audi S4 in California, United States Jun 2012 - Jul 2012
Jul 2012 62000 mi US $300	Replaced coil packs again after getting misfired (even though the car was already running the new 'revised' packs - version T.) The packs were about 18 months old.

Audi S4 in Massachusetts, United States Mar 2008 - Dec 2016
Apr 2010 54500 mi	replaced all ignition coils
Apr 2011 63300 mi US $700	alternator belt & tensioner alternator belt & tensioner
May 2014 95100 mi US $390	Low oil pressure warning light came on due to faulty switch.
Jun 2015 102000 mi US $5200	A/C compressor, HVAC hoses, valve cover gaskets, thermostat, radiator hoses, misc gaskets, drive belt

Audi S4 in Alberta, Canada Dec 2009 - Feb 2015
Jan 2010 48360 mi	Starter motor not working properly. Memory switch for recalling position of driver's seat had to be replaced.
Dec 2010 52700 mi	Crankcase ventilation valve replaced to resolve excessive oil consumption and leak from one head gasket.
Feb 2011 53940 mi	Mild oil leak from headgasket, not severe enough and problem may be resolved because of replacement of crankcase ventilation valve.
Mar 2011 55180 mi C $1100	Head gaskets in both banks of cylinders were replaced to correct oil leakage.

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Audi A4 in Oregon, United States Sep 2009 - Apr 2018
Oct 2009 88000 mi	Ignition coil packs failed on me - fourth one in two years.
Dec 2009 90000 mi	The pressurized cylinder which keeps the hatch open on the wagon ripped out of the steel mount on the D-pillar.
Jul 2010 96300 mi US $150	Car was pulling to the right. Alignment didn't help, so adjusting the steering rack on my own seemed to help a bit.
Jun 2011 108000 mi	Drivers window switches popped down into the door. Had to take apart door to fix.
Apr 2012 117300 mi	stuttering upon hard acceleration
Sep 2012 123000 mi US $12	Small coolant leak
Dec 2012 127000 mi US $760	Hoses were disintegrating and falling off.
Jan 2013 114200 mi US $20	Windshield washer pump was leaking
Mar 2014 143000 mi US $70	Valve cover rubber gasket seal replacement as oil was leaking into the spark plug holes.
Dec 2015 162000 mi US $450	Coolant leak at the front of the engine. Also changed timing belt at the same time as it was in the same area.
May 2016 165000 mi US $50	Radiator hose connector failed causing coolant to leak profusely
Jun 2016 166000 mi US $10	Coolant leak at the rear coolant flange and plastic coupler to the heater core. It was leaking about a cup a day, and I thought It was just loose, so I tightened the flange against the block as well as the plastic coupler. It still leaked.
Jul 2016 167000 mi US $10	After the second repair in June, in July I replaced the plastic coupler between the rear coolant flange and the heater core. That fixed the problem. I believe the new flange I initially bought was of the wrong size causing the leak. Success!
Sep 2016 172000 mi US $100	Replaced engine mounts. They were leaking fluid.
Jul 2017 176000 mi	Check engine light came on for P0133 oxygen sensor. I reset it and it hasn't come back this month yet.
Apr 2018 182000 mi	Leaking cooling system yet again from the back of the engine. The leak slowed, but not fully stopped. Will need to attempt again.

Audi A4 in Alberta, Canada Jun 2010 - Jul 2011
Aug 2010 74880 mi C $100	glovebox hinge

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Audi A4 in Nevada, United States Mar 2010 - Mar 2013
Apr 2010 28000 mi US $312	repair fluid leak in windshield washer fluid reservoir
Jun 2010 29000 mi US $75	replace defective daylight running light bulb
Sep 2012 35000 mi US $300	hard downshift from 2 to 1. software reprogramming to fix problem

Audi A4 in North Carolina, United States Mar 2008 - May 2013
Oct 2008 50000 mi	Driveshaft seal replacement (at transaxle)
Dec 2008 52000 mi	Replaced all ignition coils.
Apr 2010 64000 mi US $100	electronic stability control fault light--repaired by replacing brake line.
Jun 2010 65000 mi	Side impact airbag fault tripped the dashboard "air bag" light
Mar 2011 70000 mi US $2000	Replaced defective seals and vacuum hoses
Dec 2012 93000 mi US $800	Temp sensor and cracked cooling control housing had resulted in lost coolant Significant ongoing oil loss. compression test passed. Crankcase ventilation/pressure system failure suspected.
May 2013 98000 mi	Compressor failure; needed replacement Still losing oil when last had it.

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Audi A4 in California, United States May 2008 - Jun 2011
Sep 2008 41000 mi	Drivers window regulator failed.
Mar 2009 47000 mi	Leaking headlamp cluster, rough cold start resulting in one time "Check Engine Light" which reset itself upon restarting. Replace randomly operating sunroof switch. Repair "lazy" retracting driver's side seat belt.
Apr 2009 49000 mi	Engine Coolant began leaking all over garage floor. Car was immediately driven to local Audi dealer. Same problem of Trip 1: Engine coolant leak that was unsuccessfully diagnosed/repaired on the original trip to the dealer.
Nov 2009 53800 mi US $50	Leaking rear output transmission shaft and left front axle seal. Driver's window regulator failed..again.
Dec 2009 55000 mi	Ignition coil failure. Replaced all six ignition coils.

Audi A4 in North Carolina, United States Nov 2009 - Jun 2011
Feb 2010 49000 mi US $100	Transmission seal replaced

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Audi A4 in California, United States May 2009 - Oct 2010
Jun 2009 70000 mi US $2000	Car had issues with the MAF and O2 sensor
Mar 2010 80000 mi US $1400	Transmission Control Module failed, caused a check engine light. Covered under california emissions until 70,000 miles I am at 78,000.
Oct 2010 84000 mi	Glovebox actuator was stuck and broke the lid. Antenna booster stopped working and no radio signal. They replaced the booster.

Audi A4 in California, United States Mar 2008 - Jun 2010
Jun 2008 64000 mi US $150	ignition coil packs 2 of 4 failed.
Jun 2010 84000 mi	A/C not blowing cold when idling when sold.

Audi A4 in Florida, United States Sep 2015 - Sep 2017
Nov 2015 115000 mi US $150	trunk opener system leaks - oil. coolant low engine power
Jan 2017 155000 mi US $700	continuous coolant leaks, heated motor

Audi A4 in California, United States Sep 2009 - Nov 2014
Jul 2010 85000 mi US $650	leaking engine mount left axle boot was ripped; replaced. interior overhead light rattled at speed. An anti rattle pad was inserted
Apr 2011 89200 mi	valve cover and cam seals leaking; very minor oil leak so I won't repair now. upper control arm bushings are weak.
Jun 2011 90000 mi	valve cover, cam seals, and broken hoses replaced to eliminate leaking oil and burning oil smell in interior.
Oct 2011 96000 mi US $150	Check engine light indicated that cooling system temperature sensor had failed. It was replaced.
Nov 2012 106100 mi US $650	Engine mounts replaced
Jun 2013 110000 mi US $975	leaky O rings; replaced O rings and added coolant A/C flap behind glove box opened intermittently; as a result A/C sometimes was fine, other times was only available on right side of car with outside temperature air blowing in on the left side. Flap replaced. left inside CV boot leaking. Boot replaced.
Oct 2013 114500 mi US $597	Flange on rear of cylinder head leaking coolant. Coolant flange replaced as well as temp. sensor and hose from flange to heater core.
Oct 2014 125000 mi US $70	Ignition coil died. I replaced three by myself (I had done another a few months ago). Took me 10 minutes.
Nov 2014 125000 mi	upper control arm bushings weak, never replaced.

Audi A4 in Florida, United States Dec 2011 - Jul 2017
Jan 2012 73000 mi US $2095	Thermostat, both electrical fans and control unit replaced.
Apr 2013 61000 mi US $2640	CVT was beginning to fail. Replacing CVT transmission.
Oct 2014 75000 mi US $1935	Windshield wiper pump replaced. Coolant flange replaced. Valve gasket replaced.
Dec 2016 98000 mi US $1100	Both cooling fans failed AGAIN. Replaced. Windshield washer pump failed. Replaced. Button on window master control unit. Replaced unit. Recharged AC.
Jul 2017 103000 mi US $360	Coolant flange replaced for second time.

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Audi A4 in Ontario, Canada Apr 2011 - Jun 2013
Jan 2013 84940 mi C $2200	throttle body, intake gasket, and exhaust gas hoses replaced.

Audi A4 in California, United States Nov 2011 - Jan 2014
Dec 2011 72000 mi	Loud rattles from under the car, drivers side. I'd hear it at about 2500-3200 rpm's. Turned out to be a busted support rod connecting/supporting both mufflers. The rod was welded back together and the problem resolved.
Feb 2012 75000 mi US $250	Oil leaks found in driverway after vehicle purchase. Valve cover and tensioner gaskets replaced. Passenger side motor mount replaced due to leak.
Mar 2012 76000 mi US $330	Worn coolant flange and o ring which was a result of a bad valve cover gasket that leaked oil down over the flange over time. Coolant temp sensor was also replaced.
May 2013 92000 mi US $442	Driver's side motor mount replaced due to leakage of all hydraulic fluid. I did not notice much driving, I saw oil spots in the driveway and took the car in since the timing belt was replace about 2 weeks prior.

Audi A4 in New Hampshire, United States May 2010 - Sep 2011
Jun 2010 63000 mi US $10	replaced leaking coolant bleeder screw
Nov 2010 68400 mi US $170	Timing belt,water pump and tensioners

Audi A4 in Saskatchewan, Canada May 2009 - Jan 2010
Jan 2010 C $386	regular maintenance plus replacement of two engine coils

Audi A4 in Massachusetts, United States May 2008 - Jun 2011
Nov 2008 105000 mi US $200	Two worn out control arms.

Audi A4 in New Hampshire, United States Sep 2008 - Jun 2011
Oct 2008 48000 mi	Ignition coil on cylinder 1 was replaced. Cost $0.00 since it's under warranty.
May 2009 65000 mi	Retractable Cup Holder issues. It wouldn’t open. DIY of 5 minutes with cotton swabs and WD40 to fix what was causing it to stick. The job fixed it, no issues since.
Oct 2009 76000 mi US $50	Leaking coolant flange, replaced by dealer under warranty, out of pocket cost $50.
Nov 2009 78000 mi	HVAC issues, getting no heat from the car. Got it fixed at the dealer at no cost. Something regarding a locked vent not moving to control airflow; all fixed and have heat.
Dec 2009 80000 mi	CEL Light went on for P0420 code. Replaced O2 sensor and had a vacuum leak and it fixed it.
Feb 2010 85000 mi US $50	Wiper linkage failed. EPC light came on causing failed attempts at starting the car and rough idle.

Audi A4 in Virginia, United States Nov 2010 - Jul 2012
Oct 2011 93500 mi US $5000	Turbo blew

Audi A4 in Colorado, United States Aug 2009 - Mar 2010
Mar 2009 52000 mi US $30	Replaced 1 Coil Pack

Audi A4 in Ontario, Canada Feb 2012 - Mar 2012
Mar 2012 89900 mi C $500	Had to replace clutch-exploded into pieces

Audi A4 in Washington, United States Aug 2010 - Jan 2011
Sep 2010 70000 mi US $200	drivers side power window stuck, mechanism replaced

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Audi A4 in Illinois, United States Mar 2013 - Mar 2018
Jun 2016 78000 mi US $3380	Water pump froze up, causing timing belt to skip, which, in turn, resulted in damage to 2 valves.

Audi A4 in Ohio, United States May 2008 - Jan 2012
Oct 2008 41000 mi	Coolant leaked below minimum level. Coolant warning light on. Added water to system and drove to dealer. Pressure test found coolant flange seal leaking. Coolant flange seal replaced.
Dec 2008 42000 mi	Drivers window grinding and not functioning. Cable came out of regulator. Left front electric window regulator removed and reinstalled.
Jun 2009 46000 mi US $50	Airbag light was on. Drivers side igniter upper limit exceeded. Drivers seat wiring harness for airbag repaired.
May 2010 53300 mi US $53	Air bag light came on for second time in a year. First time was wiring under driver seat. This time was wiring under passenger seat.
Apr 2011 60200 mi	Dealership installed leaky oil filter during previous maintenance. Subsequent trip failed to identify source of leak. They determined on this trip and replaced the filter.
Oct 2011 65000 mi US $675	PCV valve was replaced. Caused rough idle and check engine light to flash Passenger door window regulator broken

Audi A4 in New Jersey, United States Mar 2008 - Mar 2012
Aug 2008 42300 mi	Water Pump replaced under warranty. Pump was working but was making a noise.
Nov 2008 46000 mi US $400	A Coil Pack shorted and caused the check engine light to come on. Since the incremental cost was marginal I had all four coil packs replaced.
Apr 2010 58000 mi US $1200	Replaced Radiator due to pin hole leak.

Audi A4 in California, United States May 2013 - Mar 2016
Feb 2014 129700 mi US $453	Coolant flange at rear of engine needed to be replaced due to cracking.
Apr 2015 142000 mi	Bad temp sending unit for coolant.
Jan 2016 134200 mi US $1000	timing belt, coolant leak: flange at the back of the engine was replaced.

Audi A4 in Georgia, United States Jun 2007 - Jun 2011
Aug 2007 63000 mi US $330	Drivers side window regulator failure and needed to be replaced.
Sep 2007 64000 mi US $50	Flemsy console arm broken and replaced.
Oct 2007 65000 mi US $300	Ignition coils and spark plugs replaced due to multiple check engine instances flagging cylinder misfires. (in the end valve cover seal)
Jan 2008 71500 mi US $300	Glove compartment door hinges break and have to replace whole door.
Apr 2008 74000 mi US $900	Seal on front axle, left side, bad and had to be replaced. 90% of total was labor costs.
Jul 2008 76000 mi US $330	Passenger side window regulator failure and needed to be replaced.
Aug 2008 76500 mi US $150	Gears in sunroof switch broken and needed to be replaced.
Dec 2008 82000 mi US $900	Seal on front axle, right side, bad and had to be replaced. Again, 90% of total was labor costs.
Jan 2009 84000 mi US $100	New spark plugs due to continued misfiring. (in the end valve cover seal)
Apr 2009 88000 mi US $700	Valve cover seal replaced because it was leaking to spark plugs causing previous failures.
Sep 2010 117000 mi US $400	Driver and Passenger Window regulators for the second time each.
Dec 2010 121000 mi US $500	Cooling fan and ac condenser fan replaced
Mar 2011 126000 mi US $2150	Thermostat and housing, $350 All vacuum lines under the intake manifold, $600 Crank Shaft Tensioner seal, $1200
Jun 2011 126000 mi US $60	PCV Valve

Audi A4 in Colorado, United States - Dec 2008
Apr 2007	Mileage unknown/Warranty Replace cup holder and front window motor
Sep 2007	Mileage unknown warranty Coolant sensor replaced, ignition coils replaced
Oct 2007	Mileage unknown/Warranty Thermostat replaced
Jan 2008 39012 mi	Warranty Ignition coil replaced
May 2008 40936 mi	Warranty Replace glove box door, replace cup holder, replace window regulator
Jun 2008 42928 mi	Warranty Replaced coil TOWED
Jul 2008 43276 mi	Replace air conditioner compressor , reinitialized window memory
Oct 2008 51300 mi	Certified used car warranty Replace driver's door motor, replace sunroof potentiometer, replace fuel pump
Dec 2008 51300 mi	Certified used car warranty Replace catalytic converter, replace fuel tank, replace coolant plug

Audi A4 in New York, United States Oct 2010 - Apr 2018
Nov 2010 61000 mi US $20000	front tires had outside wear, steering loose . 4 upper control arms needed to be replaced on front left and right wheels.
Jul 2014 103500 mi	Engine speed sensor
May 2017 117000 mi US $200	AC compressor bearing was making a lot of noise. Had to replace AC compressor and new belt Accessory belt pully Tie rod end and inner. Both loose Throttle body electrical connector kept getting water in it some how. This was shorting out. Car would not have any power and stall if floored. Had to cut off old connector and splice in a new one.
Apr 2018 118500 mi	Driver side front axle boot ripped leaking grease. Replaced axle with aftermarket. Exhaust leak at flex joint Front passenger side lower rear control arm Wipers moving very slow

Audi A4 in Pennsylvania, United States Dec 2014 - Sep 2016
Mar 2016 179000 mi US $300	Car died on highway, got AAA to tow me, alternator was not charging the battery, battery. Changed alternator and battery. Car is back on road.

Audi A4 in Illinois, United States Jul 2009 - Oct 2011
Oct 2009 53000 mi US $3	Right rear tail light.
Feb 2010 59000 mi US $17	Head light repair

Audi A4 in Michigan, United States Oct 2013 - Jan 2017
Jun 2015 145000 mi US $3400	Cracked cylinder head
May 2016 158000 mi US $1900	Turbo went bad after wastegate stayed open, I hear this is a common problem for the 1.8t
Jun 2016 159000 mi US $449	Update: took my car to another shop and they found it was a clogged PCV valve and my breather hose was the problem not the turbo saved 1500 on the repair that the dealer quoted me for
Jul 2016 160000 mi US $750	Got me Cat replaced after CEL came back on still not sure if the problem is solved MPG has not gone back up, but only 1 day of city driving
Nov 2016 166000 mi	My starter went out when I pulled into a Rest Area, car would not re-start had it towed to a local shop and they replaced it for 250 bucks, much cheaper than the Audi dealership, they do GREAT WORK for half the cost

Audi A4 in Pennsylvania, United States Jun 2014 - Jan 2019
Dec 2015 151000 mi US $300	replaced battery a month prior and new battery was not charging properly. Thought could be alternator.
Jun 2016 161000 mi US $2000	a/c compressor failed. replaced entire a/c compressor and serpentine belt
Sep 2017 180000 mi US $125	drive sensor replacement
Dec 2017 183000 mi US $1200	engine mounts replaced exhaust repair
Jan 2018 183000 mi US $900	timing belt, water pump and hoses

Audi A4 in Colorado, United States Nov 2009 - Jun 2012
Sep 2011 91000 mi US $400	crank shaft sensor need to be replaced. was intermittently stopping the car from starting
Jan 2012 US $800	rear brakes

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Audi A4 in Texas, United States May 2008 - Mar 2010
Jul 2008 59000 mi US $50	Original turbocharger was going bad, & was replaced under certified pre-owned warranty without any further issues.
Dec 2008 69000 mi US $50	Coolant hose adapter was cracked. Power steering hose leak.

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Audi A4 in British Columbia, Canada Nov 2008 - Apr 2021
Dec 2008 34720 mi	3 coil packs needed replacing. Power steering noisy. Fluid flush performed and replacement power sterring hose ordered for installation in January, 2009.
Feb 2009 36580 mi	Replaced power steering hose and checked system for leaks; topped up power steering fluid
Mar 2009 37820 mi	Front right wheel bearing noisy and replaced.
Aug 2009 40920 mi C $100	Scheduled maintenance visit; Reported noisy front end; diagnosed cause - leaking seal on steering rack; problem resolution - replace steering rack under CPO warranty
Jul 2010 50840 mi C $100	Water Pump replacement and 100000 KM maintenance Rear diff seals leaking Valve covers seeping oil Power steering return hose weeping; power steering fluid low; replaced hose
Feb 2013 74280 mi C $3000	Control arm replacement Valve cover gaskets replaced
Sep 2013 79360 mi C $836	Front subframe welding repair for clunking noise CEL - misfire on cylinders 2,3,6; replaced colipacks
Nov 2013 79980 mi C $850	Clunking over bumps; replaced front swaybar bussings and front struts
May 2015 90520 mi C $300	G62 Coolant Temperature Sensor replaced. MIL indicated low signal for sensor.
Nov 2015 94240 mi C $600	Very noisy power steering when turning; not resolved on 1st visit Readdress power steering noise from pervious repair trip Engine misfiring - MIL ON; 4 coilpacks diagnosed as faulty. replaced all 6 coilpacks on engine
Feb 2016 96680 mi C $200	Nylon coolant tank hose connectoin broke off.
Nov 2016 102160 mi C $1250	Wishbone failure
Apr 2017 107880 mi C $500	Serpentine Belt Tensioner Replacement Replaced front brake pads and rotors
Aug 2017 112220 mi C $839	Front Passenger Window Regulator replaced
Feb 2018 115940 mi C $387	Battery 5yrs old

Audi A4 in California, United States Aug 2015 - Jun 2018
Sep 2015 124000 mi US $550	Oil leak from valve cover gasket
Feb 2016 131300 mi US $150	Small leak on radiator, replaced it myself with aftermaket NISSIN radiator, direct fit and G12 Coolant
Mar 2016 133000 mi	Leaking Driver side valve cover gasket. It was previously replaced by shop in Sept '15, and they replaced it at this visit free of charge under warranty.
Jul 2016 138000 mi US $600	Front Right wheel bearing making noise. Tried to replace but pinch bolt was sized to knuckle. So needed to buy a new Knuckle and did the upper and lower control arms, and tie rods while at it (bushings cracked).
Aug 2016 139600 mi US $45	Car would sometimes not start when hot. (Cranks over, but not start.) Replaced the crank position sensor.
Sep 2017 143000 mi US $225	Driver side valve cover replacement. Oil leak due to warped cover.

Audi A4 in Massachusetts, United States Jul 2009 - Jun 2011
Apr 2010 109000 mi US $900	Defective headlamp sensor detector failure lamp intermittently lights up on lateral acceleration

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Audi A4 in California, United States Aug 2009 - Sep 2012
Dec 2009 65000 mi US $30	One of the ignition coils failed. I was close to the dealership and was able to drive there. A total of four coils were replaced under manufacturer's recall. the remaining two coils had already been replaced under warranty.
Feb 2010 67300 mi US $650	Front suspension bushings worn out and replaced. Car was also aligned as part of this repair.
Jul 2010 73700 mi US $400	Power steering slowly leaks fluid into the steering rack. Excess fluid drained form bellows sealing the rack and fluid topped up again. R/H glovebox hinge failed. No real reason and not worth the cost of repairing. Living with the problem
Feb 2011 86000 mi US $2150	Oil leaks from camshaft covers and sump. Gaskets replaced. Leaking coolant line, the subject of a TSB is leaking. Repair requires expensive intake manifold removal to get at source of leak so I've decided to live with the problem. We've had unusually heavy rain here since December and the Xenon headlights fog up very heavily when it rains. It's always been a problem but the dealer tells me it's normal even though the light output is badly reduced. Audi won't fix
Apr 2011 88000 mi US $850	Fuel pump failed while car was on freeway.
May 2011 89300 mi	Significant coolant leak from cross pipe located under intake manifold. Will live with problem for time being.
Jul 2011 92000 mi	Major coolant pipe had become brittle and degraded from heat and was leaking. Why Audi choose to use short life span parts baffles me. Pipe is under intake manifold so a heavy labor charge to replace it.
Oct 2011 99000 mi	Hood strut has completely failed. Not worth the cost of replacement bur annoying nontheless.
Sep 2012 116000 mi US $400	Front struts should be replaced. Quoted cost is $800 - $1050. Car has developed a bad oil leak from a crack in the upper sump. No known cause. Since the proper repair is an engine out job I'm investigating alternatives. JB Weld didn't work.

Audi A4 in Pennsylvania, United States Sep 2013 - Jun 2018
Sep 2013 70000 mi US $700	Rear coolant crossover pipe.
Sep 2015 88000 mi US $400	Crossover coolant pipe. Update, late October: already leaking again. "O"-ring going bad. It's about a 1-1/2 hour repair job for a $40 part and very tedious to get behind the engine block.

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Audi A4 in British Columbia, Canada Sep 2009 - Jun 2018
Jun 2011 21700 mi C $750	wheel bearings
Sep 2016 39060 mi C $900	defective fuel pump
Oct 2016 39680 mi C $3000	replaced transmission control module. The code for this appeared while it was already in the shop to have the crankshaft sensor replaced and actually made its presence known after the crank sensor had been done and was being test driven.

Audi A4 in Texas, United States Dec 2008 - Feb 2014
May 2009 53000 mi US $250	Check engine light came on, code was for new transmission, warranty co. asked to clear code and see if check engine light returned before replacing transmission. Check engine light came back on at 25 miles, the problem was not a new transmission, but a sensor, dealer ordered the part and I drove my car home to wait for it. The part came in, the dealer repaired it, the extended warranty paid 100%, less the $250 deductable.
Jan 2011 66000 mi US $450	Leaking valve cover gasket, fouled the spark plugs. Replaced valve cover gasket and engine breather hoses to oil separater which had crumbled apart during the gasket repair.
Feb 2013 83100 mi US $400	Check engine light came on, essentially needed a tune-up, new plugs, etc. and a lecture on using premium gas, NOT regular unleaded.
Mar 2013 84000 mi US $95	Took the car in for check engine light, re-set the check engine light, and the warning has not returned. They found a rattling brace and fixed it.
May 2013 85000 mi US $345	The dreaded intermittent electrical problem. With no rhyme nor reason the dash display goes dark, the A/C ceases to work and the radio turns off. Radio can be turned on again, but not the A/C. Shop replaced ignition switch, problem not fixed
Dec 2013 89000 mi	Continuation of intermittent electrical problem plaguing car since March. Ran fault codes, found ect sensor @ 48c degrees, replaced, Installed new sensor in water neck flange at radiator, problem in instrument cluster, no repair attempted. AC head control unit had internal short circuit, shorting out the comfort system. Instrument cluster was having catastrophic communication problems. Faulty AC control head unit and instrument cluster were replaced and re-coded. "Econ" button was stuck on...no heat, no air-cond. just outside air coming through the vent. system. New instrument cluster needed to be re-programmed. I am taking the car back to the original shop to take care of the ongoing check engine light and the abs system randomly coming on, I anticipate the repair being done this month (Dec.)
Jan 2014 82000 mi	Trip was to work on check engine light, abs brake light and traction light from previous trip, ec sensor was changed for the third time, to no avail, as soon as warning lights are cleared, they reappear. Also, crimped wires from the trunk lid wiring harness are giving false brake light out warning lights....The Audi wiring harness is roughly $4200 for the part alone, so it will either be spliced to fix, or I will learn to live with it if I keep the car.
Feb 2014 89000 mi	Check engine light still on, went to dealer discussed my options with the service tech, chose not to go through another round of diagnostic tests, traded the car in on a 2012 VW Eos. Crimped wires from the trunk lid wiring harness.

Audi A4 in Iowa, United States Mar 2010 - Dec 2013
Dec 2013 44000 mi US $475	Right motor mount leaking fluid.

Audi A4 in South Carolina, United States Mar 2010 - Apr 2010
Apr 2010 48000 mi US $5600	Car overheated. Long block replaced by dealer at owner expense at 49,000 miles (post warranty). Transmission was slipping and displaying a major error indication on the cluster. Quote was $2,700 for repair of sensor and linkage belt. This is the worst car I have ever owned.

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Audi A4 in California, United States Aug 2007 - Dec 2015
Jan 2007 21405 mi	All ignition coils replaced. Warranty.
Oct 2007 37740 mi	Brake light bulb and tail light bulb inoperable, removed and replaced.
Apr 2008 47977 mi	Right side brake light open circuit, remained lit. Removed and replaced bulb. Driver side wiper not touching glass, spring broken, replaced. Actuator for locking gas door broken, replaced. Glove box popped open at high speeds, hinge fixed.
May 2008 49160 mi	Ignition coil #5 replaced. Brake light switch defective, replaced, was causing burnt bulbs.
Jun 2008 49973 mi	Transmission control module replaced. Engine felt sluggish.
Jun 2009 67000 mi US $2700	Water pump leak, replaced. At same time did timing belt (due at 65k anyway). Upper front and rear control arms bushings worn. Replaced.
Aug 2009 73000 mi US $600	Remove and replace control module for convertible top.
Oct 2009 73000 mi US $150	Remove and replace coolant tank due to leak.
Dec 2009 77000 mi US $387	CEL illuminated and flashing. R&R spark plugs and 6 ignition coils.
Oct 2010 85000 mi US $2250	Y-pipe behind engine cylinder block cracked and leaking coolant. Replaced.
Feb 2011 88000 mi US $3700	Cylinder 5 coolant weeping, engine rumbled on start to clear coolant. Cylinder head 456 warped (probably from factory) and heating and cooling exacerbated over time, making leak worse. Replaced head.
Sep 2011 96000 mi US $4000	Ecu was sending erratic signals to fan control unit, which burned out and caused car to over heat, also ruined secondary ac fan. Upper control arm bushings replaced. Ac compressor replaced
Feb 2013 130000 mi US $2750	Transmission Control Module, filter, fluid, and seals.
Mar 2014 151000 mi US $3600	Coolant sensor in rear of engine leaking. Power steering lines leaking for years. Finally replaced.
Sep 2014 157000 mi	ABS and stability control lights intermittently on. Computer control module found faulty. Decided not to repair.
Dec 2015 167000 mi	ABS module never repaired. The car had 160++k miles on it and worth a pittance at auction due to all the issues. Couldn't ethically sell the car private party, so we just dumped it at the dealer as a $500 trade in so I wouldn't have to deal with it.

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Audi A4 in Texas, United States Jan 2015 - Jan 2016
Feb 2015 40500 mi US $200	traction control wasn't working
Jun 2015 48000 mi US $100	noisy when turned
Dec 2015 57000 mi US $300	the transmission was completely shot and was a full replacement

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Audi A4 in Washington, United States Nov 2011 - Jan 2012
Jan 2012 US $550	Starter replacement. Symptom: turning key to start, but no start, no sounds, no nothing.

Audi A4 in Pennsylvania, United States Jul 2011 - Sep 2011
Aug 2011 68000 mi US $1000	Crossover pipe behind engine losing coolant. Parts were degraded to the point that they were leaking about a pint of fluid a week. Leak was the worst as the engine cooled.

Audi A4 in Colorado, United States Sep 2011 - Nov 2011
Oct 2011 78000 mi US $3700	dual flywheel mass failure.
Nov 2011 78000 mi US $500	window motor failed.

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Audi A4 in Sweden May 2010 - Jul 2018
Jul 2015 99200 mi $35	Problem with crankcase poison sensor.(G28)

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Audi S4 in Singapore Feb 2011 - Jun 2012
Mar 2011 48360 mi $50	Ignition coil unserviceable on cylinder 3. Coils on all cylinders replaced
Sep 2011 53940 mi $500	electrical window motor on front left side u/s

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Audi A4 in Arizona, United States Mar 2007 - Apr 2009
Dec 2007 48500 mi	Right front inner CV Boot, Left rear outer CV Boot, Valve Cover Gasket. All covered under last days of warranty. (warranty expired 12/24/07)
Jun 2008 51000 mi US $85	Turbo inlet hose (aka TIP) torn and letting in un-metered air. Replaced with a spare.
Sep 2008 54000 mi US $64	Driver's front inner CV boot was torn. Shop replaced boot with new one. Engine speed sensor failed; new sensor ordered from dealership and self-relpaced.
Mar 2009 57000 mi US $725	3rd Gear synchronizer for manual transmission wore out. (Grinding in 3rd gear) Transmission removed, transmission rebuilt with new parts, transmission re-installed. All self-repair. Cost to repair includes cost of special tools purchased.

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Audi A4 in Arizona, United States Apr 2013 - Jun 2018
Jun 2013 54000 mi US $150	Replaced original battery!
Nov 2014 57000 mi US $1550	Transmission output speed sensor bad. Replaced Transmission Control Unit. Dealer covered all but $200 since it was just a month out of the 10 year extended warranty. Replaced timing belt. It was 10 years old and cracked from the Arizona heat.
Sep 2017 67000 mi US $600	Car was intermittently overheating. Replaced thermostat assembly.
Jun 2018 71 mi US $1200	Replaced rear cooling manifold which was leaking, along with necessary hoses.

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Audi A4 in California, United States Mar 2009 - Jun 2018
Apr 2009 52000 mi	fuel pump was making a loud humming noise which was diagnosed to come from the rear passenger side. dealer replaced it no problem, was recalled on 03 models so not surprising to see it happen on 04.5's window regulator broke so a new assembly had to be ordered. can be found for roughly $120 online from genuineaudiparts.com, I believe is the site. easy DIY from www.audizine.com/forum. not a big deal
Jan 2012 111200 mi US $1200	Had to replace the steering rack due to loose steering symptoms. A clunk was heard when quickly turning the steering wheel counter clockwise meaning 1 side of the rack was damaged.
Jan 2014 83800 mi US $100	Coolant flange is leaking. Observed when coolant levels dipped low after refilling. Common problem and may even be a wear item due to seal failing.
Dec 2014 117000 mi US $118	vacuum system was malfunctioning causing high vacuum leading to low oil pressure at low RPM
Oct 2015 128500 mi US $80	Previous coolant flange repair was not successful and it was still leaking. Replaced yet another time, hopefully stops coolant leak.
Apr 2016 135500 mi US $600	Water pump was leaking so I replaced pump, tensioner, and timing belt. Replace A/C compressor, drier, and restrictor due to seized A/C compressor.
Jul 2017 152000 mi US $300	Broken outer CV joint

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Audi S4 in Nevada, United States May 2009 - Apr 2010
Jun 2009 71000 mi US $275	replace trunk latch actuator

Audi S4 in Colorado, United States Jun 2011 - Jul 2012
Jul 2011 73500 mi US $100	Replaced front left turn signal bulb and socket, replaced key fob batteries, reprogrammed keys. To change bulb have to remove and then reinstall and re-aim entire headlamp assembly. Replaced front left turn signal bulb and socket, replaced key fob batteries, reprogrammed kets
Jul 2012 92000 mi US $1000	Fuel pump failed. Fuel filter also replaced.

Audi S4 in New York, United States Jun 2009 - Jun 2011
Jan 2009 35000 mi US $500	Headlight adjustment, interior mirror replaced warranty $500
Sep 2009 44000 mi US $180	AC need recharge, not under warranty
Jan 2010 US $50	Automatic gearbox manual gear selector would not upshift. Electronic board ordered under extend warranty
Aug 2010 57000 mi US $2000	AC works intermitently, Repairs $2000, Audi would pay $1000 of the repair in assistance but delaying repair.

Audi S4 in New York, United States Oct 2007 - Apr 2020
Jul 2009 39000 mi	Air conditioner wasn't working. The air conditioning compressor needed replacement. The work was covered under the Audi CPO warranty. While there, they also changed oil, filters and fluids.
Sep 2009 40000 mi US $50	Driver window regulator failed - apparently a very common problem for Audi/VW.
Jan 2010 41200 mi US $50	Power steering system lost all fluid to a leak. Leak was fixed, fluid replaced.
Apr 2010 42000 mi US $50	Fluid leak required replacement of oil pan. Part is cheap, but access requires full engine removal in this car. Repair was covered under CPO warranty.
Jul 2010 44000 mi US $800	Failed electrical connection in steering wheel led to traction control problem (system erroneously found car losing grip, leading to dangerous random overrides of driving inputs). Part replaced.

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Audi S4 in Ontario, Canada Aug 2015 - Sep 2016
Sep 2016 158100 mi C $1800	Intermittent starting. Replaced MAF, fuel filter and then fuel pump.

Audi S4 in New York, United States May 2012 - May 2014
Apr 2013 115000 mi US $7500	Main timing chain guide rail broke - requires removal of engine OR transmission to repair. Predictable failure at 100K miles, prefaced by noise on startup. Replaced clutch at same time since that was planned and tranny was out.

Audi S4 in Alberta, Canada May 2011 - Dec 2015
Sep 2011 21700 mi C $800	Airbag light on. Passenger side seat airbag module replaces. Sensor connector had been previously replaced.
Dec 2011 24800 mi C $1000	Driver's side aux rad damaged by rock, slight coolant loss over 1 month. Replaced radiator. Red oil pressure warning light. No other symptoms (ie. no rough idle, no low oil level, etc.). Towed to dealer - unable to reproduce or diagnose. Replaced oil pressure sensor / transmitter at owner's request.
Jan 2012 26040 mi C $140	Intermittent lean code. Every other month, unable to diagnose, so code cleared.
Mar 2012 27900 mi C $2000	Brought car in for alignment due to steering wheel off-center; found upper control arm bushings cracked on drivers side; replaced both side as well as seized tie-rod
Jun 2013 41540 mi C $900	Random clunking at front under light acceleration; replaced sway bar bushing and end-links. Problem not resolved; now looking at corroded front subframe replacement.
Jul 2013 42240 mi C $3000	Replaced corroded front subframe and lower control arms due to worn bushings.
Nov 2013 45880 mi C $400	Rear latch mechanism failed; unable to close hatch. Replaced latch.
Jun 2014 50220 mi C $600	Passenger aux radiator damaged by rock and slowly leaking coolant. Not an uncommon issue and exacerbated by winter gravel in Alberta. Replaced part.
Aug 2014 55800 mi C $600	Leaking valve cover gaskets; replaced.
Jun 2015 65720 mi C $400	Battery replaced after car failed to start; reset modules as required.
Nov 2015 85040 mi C $1200	Leak between steering pump and steering rack.

Audi S4 in California, United States Apr 2017 - May 2021
Oct 2017 144000 mi US $18715	Radiator and major hoses Replace front and rear subframe due to corrosion and failing bushings Alternator retrofit to adapt later model (2004 mid year change) unit. Replace in-tank fuel pump Replace shocks Reseal valve covers, oil pan to address oil leaks Replace Master Window Switch Replace wheel bearings and carriers, control arms
Feb 2018 146000 mi US $1470	Trans & Diff Fluid Service, Driveshaft Replacement, Transmission Outshaft Replacement
Mar 2018 147500 mi US $307	Output shaft seal replacement, install owner-provided replacement driveshaft replace exhaust clamps tighten front suspension links replace motor mounts replace interior trunk dome light assemble, troubleshoot intermittent connection

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Audi S4 in Alaska, United States Jul 2014 - Oct 2016
Sep 2014 79000 mi US $450	Transmission revving high before changing gears
Oct 2014 79000 mi	Secondary air system problem emissions
Sep 2016 94000 mi US $450	Outer tie rods
Oct 2016 94000 mi US $450	Belt broke serpentine

Audi S4 in California, United States Dec 2014 - Jan 2015
Jan 2015 US $760	Fuel pump failed.

Audi S4 in California, United States Oct 2010 - Oct 2011
Apr 2011 106000 mi US $400	replaced valve cover gasket on both sides, was leaking oil, 1 quart every 100 mile or so

Audi S4 in Minnesota, United States May 2013 - Feb 2016
Dec 2013 65000 mi US $700	Intake gaskets.
Apr 2015 77200 mi US $5600	Rear main seal needed replacement.
Feb 2016 83000 mi	Valve cover gaskets

Audi S4 in British Columbia, Canada Feb 2009 - Jun 2011
Mar 2009 37820 mi	Replace one coil.
Sep 2009 42160 mi	replace one cat
Sep 2010 49600 mi C $1500	leaking aux rads

Audi S4 in Ontario, Canada Feb 2018 - Mar 2018
Mar 2018 101680 mi C $1160	Change front outer tie rods, alignment, safety certification. Change front upper control arms.

Audi S4 in California, United States Oct 2012 - Jul 2013
Nov 2012 107800 mi US $355	Driver's side inner CV boot split at outer retainer ring Both windshied washer nozzles stopped working. Diagnosis revealed split OEM washer fluid pipe on driver's side. Dealer attempted to shrink heat-tube around it without permission, did not work.
Dec 2012 110000 mi US $45	Oil pressure sensor physically broke, allowing large amounts of motor oil to leak through the small plastic fitting ONLY while running.
Jul 2013 115000 mi	The OEM washer hoses became brittle and basically disintegrated. Probably due to excessive heat. I'd suggest that, if your hoses are working, to wrap them with some sort of heat shielding wrap, even if you've installed new ones.

Audi S4 in North Carolina, United States Aug 2012 - Dec 2016
Jan 2013 93000 mi US $400	Front passenger wheel bearing.
Oct 2013 94000 mi US $3500	Catalytic converters stopped up and flex couplers blew out on exhaust mid pipes. Replaced mid pipes (required) and cat back (pro actively). Opted for aftermarket parts reducing part costs about 50%.
May 2014 94000 mi US $425	MAF element cover came off and lodged in throttle body MAF replaced. Luckily cover didn't enter intake or engine.
Nov 2016 103000 mi US $2000	Catalytic convert replacement.
Dec 2016 103000 mi	Fuel trim issue never resolved.

Audi S4 in Illinois, United States Feb 2009 - Mar 2010
Mar 2009 39000 mi US $1200	Driver side auxiliary radiator and associated hose(s).

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Audi S4 in New Hampshire, United States Apr 2010 - Jun 2011
May 2010 70000 mi US $2200	AC was not working, compressor needed to replaced & because of metal bit of the failed compressor were in the dryer it needed to be replaced as well.

Audi S4 in California, United States Feb 2010 - Jul 2011
Jul 2011 16000 mi	oil leak pass side valve cover

Audi S4 in California, United States Apr 2010 - Feb 2015
Aug 2010 99300 mi US $750	Fuel gauge gives incorrect reading. Replaced fuel floaters in gas tank. Fuel reading is still incorrect, in fact, it's worse. Still attempting to repair. Rubber boot torn on front axle. Rebuild axle and reinstall.
Nov 2010 103300 mi	Passenger side floater was reading twice the normal Ohm rating, replaced unit.
Jun 2011 114000 mi US $3200	Radiator had slow leak. It was replaced.
Sep 2011 118000 mi US $450	Power steering hose ruptured. Replaced part.
May 2012 122500 mi US $600	Noticed smell of burning oil. Valve cover gaskets leaking, had them replaced.
Feb 2014 129000 mi US $100	Coolant reservoir tank cracked and leaking, replace failed part.
Jun 2014 132000 mi US $300	Front axle on the passenger side had cracked rubber boot. Replaced with rebuilt part.
Aug 2014 132900 mi US $1200	Replaced worn bushings in front control arms and replaced upper control arm to repair worn tie-rod

Audi S4 in Indiana, United States Mar 2010 - Mar 2017
May 2010 103000 mi US $121	Replaced: 079103483K (1) 079103483L (1) 077103487B (2) 079103487A (3) 049103491 (4)
Sep 2011 120502 mi US $25	Fuel pump went bonkers, car wouldn't start, left me stranded @ grocery store for 20 mins before it allowed the car to start to limp home. The only forewarning was improved gas mileage the previous 3 fill-ups. Replaced with OEM B7 S4 exhaust hangers to pull muffler tips tighter to the bumper reliefs.
Dec 2011 123723 mi US $580	Torn upper control arm bushings caused squeaking and knocking noises when engaging suspension travel. Replaced front upper (both on both sides), front lower (both on both sides), and swaybar endlinks with Meyle HD components.
May 2012 127740 mi US $138	A month prior to the repair date, the fuel level would not read more than 3/4 full, with the tank topped off. Culprit was the pass-side fuel level sending unit. Repair req'd using the fuel level down to be able to reach the sensor.
Aug 2012 128200 mi US $64	Cyl 8 spark plug fouled with oil deposits. Cyl 7 also showed oil deposits, but not as much as cyl 8.
Jun 2013 131429 mi US $139	The shift linkage cross rod popped the joint and prevented moving the shifter left/right into the 1-2 and 5-6 gates, and also made it hard to shift into 4th w/o grinding. Left me with only 3rd gear while driving in town. No forewarning. The shift linkage cross rod popped the joint and prevented moving the shifter left/right into the 1-2 and 5-6 gates, and also made it hard to shift into 4th w/o grinding. Left me with only 3rd gear while driving in town. No forewarning.
Jul 2013 131229 mi US $36	Matte finish coating on driver-side door switch plate gets a lot of wear over the years from finger nails while finding the window switches. Couldn't find a way to restore the finish, so I replaced it.
Dec 2013 134646 mi US $51	Issue was related to the Electric trunk lock release solenoid aka the actuator that opens your boot lid when you hit the trunk release button on the fob or hit the switch above the license plate. The actuator was not opening the boot lid. Issue was related to the electric trunk lock release solenoid aka the actuator that opens your boot lid when you hit the trunk release button on the fob or hit the switch above the license plate. The actuator was not opening the boot lid.
Apr 2015 137000 mi US $78	Wiper transmission seized.
Jun 2015 138000 mi	Steering wheel vibration at speeds above 55mph when accelerating or decelerating.

Audi S4 in New Jersey, United States May 2011 - Jun 2011
Jun 2011 78000 mi US $3800	Replaced A/C compressor and all related components Replaced A/C compressor and all related components

Audi S4 in Georgia, United States Jul 2010 - Apr 2017
Feb 2014 70000 mi US $220	Original OEM starter began to fail in the fall season with colder temperatures in the winter the issue was increasingly frequent. Ordered part online and installed in garage.
May 2016 88900 mi US $250	Low Pressure Power Steering return line that runs next to the exhaust manifold failed. Cracked after years of heat cycles.
Sep 2016 96000 mi US $2500	Alternator replacement

Audi S4 in Connecticut, United States May 2011 - Apr 2013
Aug 2011 71000 mi US $700	Problem with shifter. Replaced rear sway bar, brake pads, suspension end links.
Dec 2011 73000 mi US $200	Sand blast and paint inside of valve covers and replace gaskets
Feb 2012 74800 mi	coolant sensor replaced, fuel filter replaced, inside of valve covers sanblasted and painted Still failed to start when warm, replaced the cam position sensor
Aug 2012 81000 mi	one tie-rod end frozen, one old and sloppy
Oct 2012 83500 mi US $50	The car developed shifting problems. We were convinced that the trans was OK, but you never know. Turns out the Oxy sensor wire was wrapped around the linkage and once freed, all was well.
Dec 2012 86000 mi US $300	Replaced a shifting bushing and "evacuated" those pesky cats
Mar 2013 88000 mi US $200	reset idiot light. replaced o2 sensor

Audi S4 in New York, United States Jun 2011 - Jun 2022
Jan 2012 37300 mi US $30	after a 1000k trip, i noticed that the fuel pump was making a loud mechanical noise on initial start up and ended after 30sec. , googled the problem, fuel pump VS fuel filter..?? replaced the fuel filter and fuel pump noise disappeared.
Jun 2012 39654 mi US $290	changed both driver and passenger window regulators.
May 2013 43000 mi US $2300	changed both driver and passenger window regulators. Both aux radiators were found to be leaking coolant on the back side. Had them pulled and replaces with OEM parts and hoses. small coolant leak on both right and left front of car. both right and left auxiliary radiators rusted because of debris from low air intake position , design flaw.! full coolant replaced , radiator hoses replaced.
Jun 2013 42000 mi US $1600	small coolant leak on both right and left front of car. both right and left auxiliary radiators rusted because of debris from low air intake position , design flaw.! full coolant replaced , radiator hoses replaced.
Nov 2014 54000 mi US $3500	Began hearing a ticking noise from engine compartment. Took to several locations and found that a/c compressor had failed. It was winter so no noticeable difference was noticed. Had compressor replaced with OEM parts and systems refilled.

Audi S4 in Texas, United States Nov 2008 - Mar 2010
Apr 2009 57000 mi US $100	Upper control arms
Aug 2009 64000 mi US $150	Auxiliary radiator leak.

Audi S4 in Nebraska, United States Nov 2008 - Mar 2013
Sep 2009 84000 mi US $25	Coolant overfill tank cracked and leaking.
Jun 2010 84000 mi US $150	Valve cover gaskets replaced.
Oct 2010 90000 mi US $300	Accessory belt and tensioner bad. Both replaced

Audi S4 in New Jersey, United States Nov 2008 - Jan 2011
Feb 2009 52000 mi US $350	Passenger side auxilary radiator.
Aug 2009 58000 mi US $500	Very slight water damage in driver and passenger footwell, caused damage to telematics and comfort module. Also required reprogramming.
Sep 2010 68000 mi US $150	Front right window regulator replaced

Audi S4 in Maryland, United States Oct 2008 - Oct 2014
Aug 2010 142000 mi US $1200	Driver's side front window regulator needed replacement. Control Arm bushings worn. Replaced entire front suspension (upper and lower control arms) with Mayle kit.
Oct 2010 146300 mi US $138	Obviously a bad fuel guage sender, but Anchor Audi (never go there again) wasted time and only ran a VAG on the dashboard gauges. Even I know that the back seat needed to be removed and an ohmmeter run across the sender contacts. Sigh...
Jun 2011 153000 mi US $508	Recharged A/C myself thought not clearly needed. Afterwards A/C would shut off. It turns out I had overcharged the R34, and the shop had to evac and refill the system to proper specs.
Oct 2011 158500 mi US $520	Fuel level sender replaced Fuel vapor canister replaced after CEL.
Jul 2012 172000 mi US $520	Front passenger side window regulator needed replacement.
Aug 2012 173800 mi US $35	Had to replace front turn signal bulb socket.
Oct 2012 178000 mi	Wheel bearings needed replacement.
Nov 2012 179500 mi US $2600	Upper control arm and mount
Feb 2013 186000 mi US $900	Removed and replaced serpentine belt due to wear. Replaced coolant reservoir. It had small crack in it, and coolant was crystalizing on the outside of the tank.
Apr 2013 187700 mi US $1630	Right Front axle and left upper control arm needed replacement. (suspension noises and irregular tire wear)
Jul 2014 206000 mi	Developed a radiator leak in the secondary radiator on the front passenger side of the car. It needed replacing. I had starter replaced due to the common problem with B6 Audis. During cold weather, the starter will not turn over. I've dealt with the problem for years, just patiently waiting for the car to start, but i decided to end the suffering.

Audi S4 in Minnesota, United States Aug 2008 - Mar 2010
Oct 2008 50000 mi US $50	The compressor went out on the AC. In order to replace the $600 part, the bumper and other front-end parts needed to be removed.

Audi S4 in California, United States Jan 2012 - Feb 2012
Feb 2012 82000 mi US $110	Fan Broke

Audi S4 in Maryland, United States Jul 2008 - Jun 2012
Jan 2009 52000 mi US $60	Ignition Coil went bad and was replaced by me.
Mar 2009 54000 mi US $50	Another Ignition coil went bad. Replaced in an hour by me.
May 2009 57000 mi US $125	My front passenger side window regulator went bad (known VW/Audi problem). The regulator was successfully replaced by me.
May 2010 66000 mi US $300	My fuel pump died. Part was replaced by me.
Aug 2010 69000 mi	Auxiliary radiator was leaking. Part replaced by me.
Nov 2010 73000 mi US $220	The inner cv boot on my front drivers side axle was torn. The part was successfully replaced by me.
Jun 2011 80000 mi US $300	I was having a slight vibration at certain speeds so I changed out the outer tie rods. While working I noticed the control arms and inner tie rods were going bad as well. So I replaced them all while I already had the car apart.
Jul 2011 81000 mi US $50	One of my O2 sensors went bad and i replaced it myself.
Apr 2012 87000 mi US $250	The dual mass flywheel started to fail by separation which is a known failure point of the b6s4. A vibration could be felt when reving the car. The part was replaced successfully by me.

Audi S4 in Puerto Rico Dec 2008 - Oct 2011
Jan 2009 21000 mi US $310	Mass Air Flow was replaced.
Oct 2011 39000 mi	The accessory belt for the alternator broke. Replaced belt and performed preventive maintenance by replacing accessory belt pulley and tensioner. Additionally, the spark plugs were replaced.

Audi S4 in California, United States Feb 2009 - Dec 2009
Mar 2009 60000 mi US $125	I noticed a leak in coolant, a pressure test was conducted but no leak found, found to be a possible overfill issue.
Dec 2009 64000 mi	Oil/coolant leak.

Audi S4 in Wisconsin, United States Nov 2009 - Jun 2011
Dec 2009 103000 mi US $5000	Camshaft adjuster. Only way to repair is to pull the engine Valve spring failure on Cyl 3 - engine is going to be replaced
Jul 2010 108000 mi US $35	High Pressure switch failed Failure of wheel bearing and control arm Rough idling - dealer couldn't replicate and no DTC warnings found
Jun 2011 115000 mi US $700	Leaking transmission seal dripping on exhaust

Audi S4 in Massachusetts, United States Jan 2010 - Sep 2018
Feb 2011 50300 mi US $940	One of aux radiators started to leak and needed to be replaced
May 2014 69000 mi US $950	Middle muffler rotted through. Had to change the exhaust from after the cats
Sep 2014 70000 mi US $650	Self-diagnosed. Starter motor failed. Replaced with OEM. Messy 5 hour job so ordered part and gave it to a good local shop. Noticed a few non-critical engine oil leaks and a weeping coolant hose (clamp replaced).
Apr 2018 84000 mi US $3000	Failed alternator. Shredded the belt. Required replacement including tensioner. Since alternator model was only used for one year, it is no longer available so modification kit required to adapt for newer model.

Audi S4 in Washington, United States Dec 2009 - Aug 2014
Mar 2011 70000 mi US $400	Sticky caliper and a worn bearing drivers side
Sep 2011 74000 mi US $600	Lower control arms and bushings, normal for this mileage. Added H&R lowering sport springs and Hankook RS-3's while at the shop.
Apr 2013 88500 mi US $200	Sunroof control unit
Jun 2013 91000 mi US $1800	Delphi alternator in these cars a known weakness. Replaced with an upgraded Hitachi unit that required a couple of updates to the existing water cooling for the alternator.
Oct 2013 94500 mi US $700	Starter motor replacement
Jul 2014 102300 mi US $1200	Power steering pump failed

Audi S4 in Arizona, United States Sep 2009 - Jun 2022
Oct 2009 37000 mi US $200	AC compressor failure
May 2010 40000 mi US $400	valve cover gasket leak
May 2012 56300 mi US $150	power steering pump
Nov 2012 58300 mi US $250	tie rod bushings worn - replaced fuel leak at tank coupling
May 2013 60000 mi	replaced sunroof potentiometer, coolant overflow bottle leaking
Aug 2013 62000 mi US $400	o ring in system failed battery cable corroded
Sep 2013 62000 mi US $50	gas filler neck seal torn- seal replaced
Oct 2014 67500 mi US $540	Pass front window inoperable - replaced window regulator
Mar 2016 77000 mi US $120	Replaced right rear window regulator
May 2016 77600 mi US $150	replace drivers front window regulator
Dec 2018 88000 mi US $600	pads and rotors,front and rear
Mar 2019 89000 mi US $1500	Radiator leak - replaced main radiator
Dec 2019 91000 mi US $1500	O2 sensor and harness replaced

Audi S4 in Florida, United States Aug 2009 - Mar 2010
Dec 2009 86000 mi	Valve cover gaskets. serpentine belt, pulley, & tensioner TSB

Audi S4 in Georgia, United States Sep 2009 - Jun 2011
Oct 2009 58000 mi US $500	Valve cover gaskets. Coolant expansion tank.
Mar 2010 63000 mi US $1300	water pump/thermostat replaced Replaced engine mount and snub mount. CV boot replaced.

Audi S4 in Massachusetts, United States May 2010 - Sep 2014
Jul 2011 83000 mi US $420	Front passenger window regulator replacement
Feb 2012 92000 mi US $700	Leaking radiator replaced.
Sep 2012 97000 mi US $1500	Front ball joints all worn, replaced all stab links and tie rod ends. Oxygen sensor failure.

Audi S4 in Hawaii, United States May 2011 - Dec 2011
Dec 2011 78000 mi US $650	Heater hose leaking. Required removing the trans and cutting out the catalytic converter.

Audi S4 in Michigan, United States Jan 2014 - Oct 2014
Oct 2014 121000 mi	Timing chain guide failure, caused the chain to skip tooth, bend valves, then scorch the cylinder walls and piston tops.

Audi S4 in Georgia, United States Aug 2012 - Mar 2013
Dec 2012 66000 mi US $210	Power steering pump spline connector and sleeve replaced.

Audi S4 in California, United States Jun 2013 - Jan 2014
Oct 2013 85500 mi US $3000	Warped valve covers, broken lumbar support
Jan 2014 88000 mi US $450	Faulty crank position sensor

Audi S4 in Tennessee, United States May 2015 - Jun 2015
May 2015 157000 mi US $300	Replace leaking valve cover gaskets

Audi S4 in Nevada, United States Dec 2015 - Dec 2016
Aug 2016 117400 mi US $600	Replace a/c compressor Timing chain guide has broken (plastic guide) and is allowing chain to slack and sounds horrible when idling.

Audi S4 in California, United States Jun 2005 - Aug 2008
Jan 2005 20000 mi	Adjusted manifold bolt - fixed rough idle. no other problems in 4 years. great car

Audi S4 in Washington, United States Oct 2016 - Jun 2018
Jan 2017 115000 mi US $3500	Replaced radiator + hoses, transmission cooler due to leaks. Replaced alternator.
Apr 2017 122000 mi US $1000	Replaced motor mounts due to leaks and lack of engine rigidity. Replaced driver window regulator due to excessive noise and inconsistent window operation.
May 2018 135000 mi US $700	Replaced clutch slave cylinder due to no pressure in the clutch pedal. Bled system.

Audi S4 in Quebec, Canada - Sep 2005
Sep 2005 19840 mi	Changing block motor due to invalid boost pressure in cylinder 4 & 8 caused by malfunction in cylinder 2. Approx. cost by the dealer and audi 20k$.

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Audi S4 in Norway Dec 2014 - Mar 2017
Jan 2015 161220 mi $600	Changing the valve seals. Only natural for an engine that's been running this flawlessly for so long.
Oct 2016 168020 mi $500	Faulty connection to headlights

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Audi S4 in New York, United States May 2011 - Mar 2013
Jun 2011 29000 mi	a/c went out. a/c repair 2nd try: still does not work correctly
Mar 2012 32000 mi	Broken cord within the convertible top.
Mar 2013 32000 mi US $1106	Replace Valve Cover Gaskets. Parts $330 and $894 for 6 hours of labor.

Audi S4 in British Columbia, Canada May 2010 - Jul 2015
Jul 2010 45260 mi C $186	Software that operates power top failed because of low battery voltage. This is a common problem and was quickly resolved by the dealership.
Mar 2011 52700 mi C $650	rough idle when engine warm, CEL on briefly then off, shop read engine codes, replaced battery and swapped ignition coils from one cylinder bank to the other, told to come back if problem returns.
Nov 2011 57540 mi C $56	replaced front upper suspension bushings replaced valve cover gaskets and half moon gaskets to repair oil leak DIY replacement of the coolant reservoir - there were stress fractures forming on the side of the tank. It wasn't leaking but would probably begin leaking within six months. Part cost $56.00 plus some rad fluid to replace the amount lost.
Oct 2012 66340 mi C $380	front crank seal failed
Jan 2013 68200 mi	crank seal failing again
Feb 2013 68600 mi C $550	crank seal failure misdiagnosed - actual leak was from the oil filter canister connection to the block
Mar 2013 68200 mi C $225	driver side window came out of track and fell into the door
May 2013 69840 mi	driver side window not sealing with rear quarter window - windows adjusted so that seal was air tight
Jun 2013 70680 mi C $980	power steering hoses burst
Oct 2014 75020 mi C $2522	Oil leaks from valve covers. Replaced gaskets and seals. The car still leaks oil. Airbag light stayed on constantly. 6 speed paddle shift automatic won't upshift out of first gear when the engine is hot and has been driven in stop and go traffic. Upper link bushings falling apart 6 speed paddle shift automatic won't upshift out of first gear. It required two trips to detect a bad wheel sensor on the front left wheel. Replacement of sensor resolved the problem.
Jul 2015 86800 mi C $1400	Fuel pump failed. Replaced it and performed major service at the same time. The oil leak was minor and I stopped wasting time and money on this problem. The engine still dripped oil. V8 powered Audis of this era are notorious for this problem.

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Audi S4 in New Zealand Sep 2016 - Jan 2017
Sep 2016 74400 mi	Wire into boot lid had degraded, needed to replace wire - its the wire to the antenna in boot lid. Symptom was music system sound dropping out as the boot lid was opened and closed. Currently have battery drain issues unsolved.
Jan 2017 $150	Crank position sensor replacement

Audi S4 in Washington, United States Apr 2012 - Dec 2012
Jun 2012 67000 mi	Econ button would not go off. Hole in A/C compressor. As I'd only had the car for a week, dealer paid for repair. Passenger window motor & driver's seat motor non-working when I purchased the car.

Audi S4 in Michigan, United States Feb 2010 - Jun 2018
Jun 2010 97000 mi US $350	Wipers seized in pivots - corroded from salt in the winter
Dec 2010 103000 mi US $350	Won't crank - corroded solenoid in starter motor...
Jun 2011 111000 mi US $500	Solenoid in the starter motor was corroded and the car would not start... replaced the starter motor - (the solenoid is integral to the starter). Also replaced the Battery - since the high temperature of the engine weakened it to 60%.
May 2012 120300 mi US $300	Slow responding Ox sensor - rough idle/rough accel
Oct 2014 131300 mi US $6300	Misfire on one bank + Cam timing advanced error. Plastic timing chain tensioners broken/worn, cam tensioners worn. Pull engine and replace all

Audi S4 in California, United States Mar 2009 - Oct 2015
Apr 2009 40000 mi US $100	Radio stopped working-"no antenna" came up on radio receiver. Connection between radio and antenna had to be replaced.
Nov 2009 44900 mi US $800	engine manifold gasket leaking suspension bushings worn rear brake light burned out
Aug 2010 49000 mi US $400	Trunk expander control lever broke.
Oct 2010 50000 mi US $175	Brake sensor switch failed causing ABS light to come on.
Aug 2011 55300 mi US $300	Nav stopped working-had to replace computer. Also fixed leaky head gaskets.
Jan 2012 52300 mi US $300	Whining noise from rear of car-fuel pump failing-fuel pump and fuel filter replaced.
Sep 2013 70000 mi US $1900	Engine would not start. Engine speed sensor was replaced. Convertible top would not work. Motor and latches failed and were replaced.
Dec 2014 78000 mi	Convertible top leaks.
Jul 2015 80200 mi US $1600	Convertible top not working-had to replace two motors.
Oct 2015 81000 mi	leaking radiator

Audi S4 in New York, United States Jan 2009 - Jun 2011
May 2009 61000 mi US $1700	Various suspension rubber had deteriorated and was replaced.
May 2010 74000 mi	Two out of eight of the ignition coils failed completely. Received a recall notice, but they failed before I could have the units replaced.

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Audi A4 in Colorado, United States - Aug 2006
Jul 2005 26235 mi	rear seat belt warning light, replaced seat sensor.
Aug 2006 44231 mi	left front speaker cutting in and out. Cleaned door electrical connectors to fix.

Audi A4 in Vermont, United States May 2010 - Jan 2013
Jul 2010 91500 mi US $1600	AC compressor catastrophic failure, apparantly a common problem. Fortunately I was able to buy a new compressor, receiver/dryer and seal kit for about 500 and brought it to local shop for installation(Dealer wanted over 1400 just for parts)
Nov 2010 99000 mi US $700	Camber out of spec, replace 1 Front lower control arm on each side, 4 wheel alignment.
Sep 2012 132000 mi US $250	Cam seals and valve cover gasket
Jan 2013 US $900	Cam seal leak, coolant flange leak at back of cyl head.

Audi A4 in Colorado, United States Dec 2010 - Jun 2016
May 2014 72000 mi US $80	Snub (front) engine mount in need replacement.
Jan 2015 63500 mi US $600	Crankcase oil breather hose was cracked, replaced. Coolant hose behind engine leaking, replaced.
Mar 2015 76000 mi US $200	Crankcase position sensor needed replacement.

Audi A4 in New Hampshire, United States Nov 2009 - Nov 2011
Jul 2009 90000 mi	Wipers started going slower and slower till they finally stopped. Replaced wiper linkeage due to corroded bearings.
Aug 2009 92000 mi	Drivers window stopped working, replaced window regulator.Radiator seeping, replaced radiator.

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Audi A4 in Ohio, United States Jul 2010 - Dec 2012
Aug 2010 72000 mi US $160	front rotor change
Sep 2010 75000 mi US $109	Right front wheel bearing. right front wheel bearing
Nov 2010 80400 mi US $600	Replaced vacuum tubing below intake manifold

Audi A4 in Rhode Island, United States Nov 2009 - Jun 2013
Aug 2010 107000 mi US $750	vacuum leak
Nov 2010 112000 mi US $200	lack of heat. cooling system flushed, and thermostat replaced. heat is slightly better,but is still takes a long time to warm out, and it won't get hot. mechanic believes waterpump may be faulty.
Sep 2011 127000 mi US $1200	replaced shocks at 126,000.
Sep 2012 139000 mi US $2500	losing coolant, had cracked head. Replaced head and did timing belt replacement at same time.

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Audi A4 in Ontario, Canada Jul 2009 - Aug 2014
Jan 2010 89900 mi C $330	Rear differential leak
Jun 2010 95480 mi C $400	Passenger Window motor broken
Jun 2014 153140 mi C $2900	Car in for timing belt change, spark plugs and two broken parts that had the CEL on (about half the repair bill for regular maintenance)

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Audi A4 in Massachusetts, United States - Dec 2008
Mar 2004 12000 mi	headlight leveling sensor in the rear view mirror
Jun 2005 20000 mi	left side rear seat belt tensioner
Jul 2005 22000 mi	right side rear seat belt tensioner
Oct 2006 32000 mi	camshaft position sensor
Nov 2006 33000 mi	front wheel bearing
Sep 2008 47000 mi US $500	driver window regulator
Dec 2008 48000 mi US $50	power steering hose clamp (leak)

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Audi A4 in California, United States - Nov 2007
Oct 2007 28500 mi	hid bulb replacement window switch replacement under warranty
Nov 2007 29000 mi	transmission control module replaced under warranty

Audi A4 in Florida, United States Oct 2010 - Jun 2011
Nov 2010 98000 mi US $150	Car started to "jumping" upon starting. CVT transmission not shifting properly. Dealer recommended replacement of transmission. Replaced transmission fluid. Appears to be running significantly better.

Audi A4 in Washington, United States Jun 2007 - Dec 2009
Nov 2007 42000 mi	Replace toggle switch to control outside mirrors. Covered under warranty
Dec 2009 60000 mi	Problem was detected when took in for a dealer bid on car. Camshaft tensioner seals are leaking. Estimated cost $650. Not a serious issue, but car now requires the addition of 1 qrt of oil every 4,000 miles. I have since sold car to private party.

Audi A4 in North Carolina, United States Oct 2010 - Dec 2016
Dec 2010 100000 mi	Bought vehicle with engine light on and air bag on. Took to dealer to get service records and found recall involving coil packs. Dealer replaced all 4 plugs no charge. Also found p0 420 got a quote for 1350 catalytic converter
May 2011 104000 mi US $60	fuel pump noisey due to bad fuel filter. fuel pump making loud humming/whine sound
Mar 2012 110000 mi US $225	Car jerking when stopped, had cvt oil/filter changed, problem resolved
Apr 2012 110200 mi US $125	EPC light and Check Engine P0102. Changed MAF Sensor and Vaccum hose replaced
Mar 2014 138000 mi US $156	Changed both motor mounts and snub mount
Jul 2014 141000 mi US $70	CV axle boot torn and car was shaking during acceleration. CV axle replaced
Oct 2015 152200 mi US $750	Egr valve (Combi Valve failed). Secondary air pump failed. CVT slight shudder, need oil replaced.
Dec 2016 160000 mi US $100	Coolant temp sensor failed.

Audi A4 in South Africa Sep 2009 - Jun 2018
Nov 2009 91840 mi	Rattle detected when engine strained (like crawl at idle) Dealer diagnose as timing tensioner and quoted exorbitant amount to repair - still looking for cheaper alternatives
Dec 2009 91140 mi	Driver side electric window stuck open and was closed with manual intervention. Part quote received from dealer exorbitantly high - still looking for cheaper alternatives
Jan 2010 93000 mi R 10500	Timing belt and tensioner replaced by dealer. Rattle still present when engine under strain (like crawl at idle) but dealer states "not a problem" now although before repair the same noise was "a big problem" Driver side electric window lifter (not motor) replaced by dealer, now working fine
Jan 2011 92840 mi R 4000	linkages on anti-roll bar replaced as they were "worn out and a safety issue" AC compressor pulley broken off completely. Told that entire AC system had to be replaced - estimated cost about half the current value of the vehicle
May 2011 101060 mi R 10500	AC compressor disintegrated, was replaced together with condenser and accumulator, and whole system flush and re-gas
Aug 2012 109400 mi R 450	Aircon didn't work, flushed and regassed, detected leak on valve, replaced valve
Aug 2014 125400 mi R 8000	AC not working and indicator clears when manual override attempted. Check at mechanic, who diagnosed faulty compressor. Replaced Noticed oil leak, upon investigation saw cracked oil sump, welded shut during AC compressor replacement
Oct 2014 126360 mi	Vehicle broke down next to the road with water pouring out at the bottom. Took it to the mechanic on a tow truck. After opening the top it turned out the timing belt broke, the cam shaft broke most of its teeth off and some valves were bent A couple of days after getting the car back from the time belt replacement it started juddering and missing under all acceleration. Drove to the mechanic who diagnosed a faulty coil. Replaced
Apr 2017 147560 mi R 2155	vehicle overheated suddenly and quickly which pointed to temp sensor or thermostat - both replaced
Jan 2018 152520 mi R 40	Left dim headlight blew, replaced
Mar 2018 155000 mi R 450	water leak detected, took vehicle to mechanic who replaced the radiator, leak found on pipes, repaired

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Audi A4 in Washington, United States Sep 2009 - Sep 2017
Jun 2010 83000 mi US $1700	Valve cover and camshaft gaskets were leaking and had to be replaced.
Jul 2010 83000 mi US $110	MAF sensor replaced
Mar 2011 95000 mi US $100	Replaced camshaft position sensor and boost control solenoid
Mar 2012 100000 mi US $500	boost issue traced to broken wire to boost control solenoid
Mar 2014 115000 mi US $750	coolant flange replaced
Jun 2014 117000 mi US $1500	new clutch installation
Oct 2014 121000 mi US $200	dead engine position sensor
Dec 2014 124000 mi US $1200	leaking water pump
Sep 2016 131000 mi US $1100	Motor mount replacement
Jul 2017 136000 mi US $100	Camshaft position sensor failed and required replacement

Audi A4 in Queensland, Australia Feb 2015 - Jan 2018
Feb 2015 169260 mi A $100	Initially took car in because of rust in roof rail Audi fixed under warranty. Car then leaked water, Audi again fixed under warranty. Was drain tubes for sunroof. Vehicle was over revving and had erratic idle, also blew oil all over side of engine. I replaced, PCV, breather tube, vacuum hoses, thermostat, top radiator hose and balance hose. Had erratic engine idle and over revving problems, coils were replaced by dealer because of recall. Did not fix erratic idle or over revving. Had over revving and erratic idle issue when purchased. All other attempts to fix made no difference. Finally crank position sensor failed. Replaced part, erratic idle and over revving issue gone.
Mar 2016 179180 mi	re: Issue with rust in roof, started to rust out again. Finally repaired correctly when turret removed and repaired. Under warranty.
Nov 2017 197160 mi A $420	Took vehicle in to have timing belt kit installed. Mechanic found faulty water pump, also replaced.
Jan 2018 197780 mi A $55	Replaced coolant overflow tank. Stress cracks were forming so replaced as preventative measure.

Audi A4 in Washington, United States Jul 2011 - May 2015
Jul 2012 88200 mi US $190	Replaced the Fuel pump that was dying.
Jun 2013 94000 mi US $250	Replaced Upper Control Arms. Replaced the Variable Cam Timing Solenoid and tensioner assembly.
Oct 2013 94300 mi US $50	Replaced Oil Cooler that was leaking oil into the coolant system.
Jul 2014 98300 mi US $300	New tie rods and control arms.
Apr 2015 103000 mi US $120	Replaced radiator that had a pinhole leak.

Audi A4 in Ontario, Canada Jul 2012 - Oct 2016
Aug 2012 127280 mi C $4	coolant leak at back of head, was coolant temp sender O ring, read on internet a real pain to do, only took 40 minutes and cost $4.09 with tax for a new O ring and C clip
Jul 2013 136700 mi C $40	4 engine codes, engine missing, poor excelleration, dont use E3 spark plugs, less than a year old, junk on turbo cars.
Jul 2014 150640 mi C $300	Head gasket leaking, replaced as well as valve seals and cam seals Oil sensor replaced as gone bad Breather lines cleaned as easy to get at while apart as well as oil cooler or ring
Feb 2016 172980 mi C $300	Water pump leaking, replaced. Timing belt done at same time as it will be due in another 20000km.
Oct 2016 173600 mi C $800	Over 280 thousand KM on original clutch Well it finally went as well as clutch master cylinder so replaced clutch master and slave cylinders and installed all new clutch kit with new light weight single mass flywheel

Audi A4 in Pennsylvania, United States Sep 2011 - Apr 2013
Sep 2012 170000 mi US $6500	Clutch failure. A section of the clutch disc broke off. The clutch would hold a gear but not release. Clutch disc, pressure plate, and flywheel were replaced. Rear main seal was replaced as preventative maintenance.

Audi A4 in Massachusetts, United States Nov 2008 - Jun 2018
Jan 2010 172700 mi US $350	Plastic thermostat housing cracked. Difficult to duplitcate - only "seemed" to leak when cold. Driving dried the leaked coolant so it was difficult to trace.
May 2010 86000 mi US $25	valve cover gasket was leaking
Nov 2010 97000 mi US $200	Engine running lean due to vacuum leak. Split hard line on crankcase breather system at the back of the head. Replaced entire section from suction valve to block.
Mar 2011 105000 mi US $45	Leaking thermostat housing. Shop replaced unit under warranty as it had been changed recently
Aug 2011 110300 mi US $250	Drivers side aigbar ignitor code - known issue with these cars. The harness has little slack, moving seat to limits sometimes stresses harness, it loosens up causing code. Connector cleaned and reassembled.
Jan 2012 118000 mi US $90	Side Airbag Ignitor code again. Driver's seat. Seat removed, contacts cleaned all reinstalled. Quicker and cheaper to do this than replace harness.
Sep 2013 146000 mi US $250	Rear coolant flange leaking
Nov 2013 149000 mi US $450	No heat- heater core clogged. Flushed and thermostat housing replaced. Required return trip since initial installation was faulty.
Feb 2014 154000 mi US $1000	floaty steering, instability, front end clunks. Tie Rod and Upper control arms replaced. Febi Bilstein UCA had lasted 25-30K miles; ball joint end was gone. Replaced with Meyle HD. TRE were original, replaced with Lemforder
May 2014 158000 mi US $458	Drivers side front inner CV joint fully split. Replaced entire axle since it was original and I had no idea how long the boot had been torn.
Jan 2015 110800 mi US $700	Heater core clogged beyond flush. Replaced with OEM.
May 2015 175000 mi US $250	Inner Cv boot torn, replaced axle with raxles unit
Nov 2015 182000 mi US $25	Lack of heat, flushed heater core, found not clogged, performed coolant flush, bled system refilled with new coolant.
Dec 2015 183000 mi US $150	front lower control arm outer bushings (lower strut) gone. arms were cheap replacement parts aquired in a previous pinch.
Jan 2016 170700 mi US $80	Engine Mounts leaking. Replaced with Corteco brand B5 S4 mounts
May 2016 185100 mi US $100	torn boots on drivers front axle (was a cheap replacement) dirt & grime getting in and causing wear and vibration. replaced with a quality unit from Raxles front passenger caliper seized. needed to replace pads (uneven wear and caliper)
Feb 2017 191000 mi	Replaced caliper (the one replaced last year) due to sticking. Tried replacing/regressing slides first to no avail. Autozone warranty covered caliper. Rear coolant flange leaking. Replaced w/ aluminum coolant flange. Upon disassembly, found the o-ring was bad.
Sep 2017 196000 mi US $400	Changed lower control arms and inner and outer tie rods
Dec 2017 197000 mi US $1000	low oil pressure at higher rpms (fine at idle), pulled pan to check pickup tube and o-ring for sludge. No sludge present. removed oil pump, found wear, replaced oil pump and oil pressure return

Audi A4 in Oregon, United States May 2012 - Jun 2017
May 2012 122000 mi US $300	Fuel Pump needed to be replaced
Oct 2012 125200 mi US $100	rear coolant flange
Dec 2012 126000 mi US $100	Water pump was leaking, replaced.
May 2015 143000 mi US $80	Replaced driver-side front wheel bearing
Mar 2016 148000 mi US $200	Engine mounts, transmission mount, and valve cover gasket
Apr 2017 151 mi US $1000	Replaced AC compressor

Audi A4 in Florida, United States Aug 2006 - Jun 2011
Feb 2006 26060 mi	glove box replaced. no cost due to warranty repair. would have cost 735.95 out of warranty.
May 2008 62600 mi US $700	new tires(not included in price) installed, balanced, four wheel alignment. stainless steel brake lines installed. brake fluid flush.

Audi A4 in Ontario, Canada - May 2007
May 2007 13020 mi	Sunroof was acting up, had the sunroof switch replaced under warranty by the dealer.

Audi A4 in Rhode Island, United States Feb 2010 - Dec 2012
Dec 2010 125000 mi US $425	Fuel pump blew...towed in Sunday, replaced Monday
Jun 2011 132000 mi US $1020	replaced window regulator coolant leak/coolant temperature sender unit replaced
Oct 2012 151000 mi US $500	Oil leak

Audi A4 in Pennsylvania, United States Mar 2014 - Sep 2015
May 2014 87700 mi US $1600	Wheel bearings replaces as well as timing belt and other maintenance items.
Jul 2014 86000 mi US $835	Rear coolant flange leaking. Airbag TSB needed completed.
Mar 2015 96000 mi US $100	Coolant leak at thermostat housing.
Jul 2015 98000 mi US $2000	Clutch replaced due to being worn at age. Normal. Control arms replaced due to age. Bushings were splitting. Inner and outer tie-rods replaced.
Sep 2015 98000 mi	Steering rack leaking, needs replaced.

Audi A4 in Ontario, Canada Jun 2009 - Dec 2011
Oct 2009 61060 mi	Original factory coil packs failed and had to be replaced
Mar 2010 63860 mi C $200	Replaced crankshaft sensor. Replaced crankshaft sensor
May 2011 77160 mi C $700	Coolant temperature sensor intermittently not working
Sep 2011 81840 mi C $350	Replaced rusted exhaust flex pipe

Audi A4 in California, United States Nov 2009 - Jun 2017
Mar 2016 103000 mi US $154	Window regulator failure Drivers front door latch micro switch failed closed Passenger side rear door latch micro switch failed open

Audi A4 in New Jersey, United States Aug 2013 - Dec 2016
Jul 2014 127000 mi US $450	Windshield wiper gearbox seized and had to be replaced.
Oct 2015 132000 mi US $600	Replaced rear pads, rotors and calipers.
Jun 2016 133000 mi US $500	Injector seals were leaking
Sep 2016 133000 mi US $600	New exhaust downpipe and incidentals.

Audi A4 in Quebec, Canada Sep 2011 - Sep 2012
Jun 2012 96720 mi C $700	Evaporator got damaged by a road debris

Audi A4 in Colorado, United States Feb 2008 - Mar 2010
Mar 2008 45000 mi	Seatbelt in back was replaced caused airbag light when engaged, also had 45,000 maintenence done for free.

Audi A4 in Georgia, United States May 2010 - Jul 2014
Jun 2011 176000 mi US $6	Alternator quit working. Determined brushes needed to be replaced. Brushes $2.00, sandpaper $4.00.
Aug 2011 180000 mi US $900	- Both Electrical Cooling Fans were bad. This in turn destroyed the electrical cooling fan module. - Master Clutch cylinder failed, replaced.
Apr 2012 206700 mi US $380	- rear of the engine thermostat clip failure: replaced - radiator developing crack: replaced - crank case breather tube broken: crappy vw plastic: replaced
Aug 2012 210000 mi US $200	Crank case ventilation failed. This has thrown engine to missfire and throw map controlled coolant thermostat shorted to plus error code. Replaced crank case ventilation parts, reset ecm, all good.
May 2014 245000 mi US $350	steering rack has been leaking for last 100k miles

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Audi A4 in Missouri, United States Jul 2010 - Jan 2014
Jan 2012 107000 mi US $220	No start, no CEL. fuel pump and filter changed by owner. shop quote $1200, my cost parts $220 PCV valve gave loud whine like the fan belt had failed. Got a low oil pressure light - took to shop diagnosed engine sludge build up. De-Sludged sump crankcase cover, changed PCV valve and some of the hoses. Total cost $996 Dipped headlight bulb needed replacing my cost $5 + 1hour labor. Shop quote $120 Crankcase position sensor failed. Car would not start, and gave codes suggesting a problem with this (CKP). Shop quote $200. my cost from ebay $16, and 2 hours labor
Dec 2012 100000 mi US $62	Engine none start, towed to garage, started next day ... garage said no compression due to flooding caused non start.... passenger headlight bulb change, and brake light... total cost $10 to change myself ... bulbs from ebay / amazon
Sep 2013 108000 mi US $510	The coolant flange went again, didn't want to deal with it, as my other car was in the shop as well so had shop tow it, and do the work.
Jan 2014 89000 mi US $50	Oil Dipstick tube disintegrated when I went to check the fluids, when the car wouldn't start, just like last year ...

Audi A4 in Pennsylvania, United States Mar 2014 - Dec 2015
Nov 2014 120000 mi US $200	Flush and purge heat exchanger
Apr 2015 125700 mi US $25	Harmonic balancer replaced
Sep 2015 133000 mi US $50	Turbo Wastegate Actuator

Audi A4 in Maryland, United States Sep 2007 - Jan 2011
Jul 2008 57000 mi US $50	Bad (howling right front wheel bearing replaced under CPO warranty with $50 deductable)
Nov 2008 62000 mi	Fuel pump died. Replaced under CPO warranty Passenger front Window regulator was bad. Dealer replaced under CPO warranty
Dec 2008 64000 mi US $50	Leaking bleeder screw on hard coolant pipe. Leaking cam chain tensioner/valve cover gaskets. Finally after 4th time mentioning it, do they consider it not normal and repair.
Sep 2010 95000 mi US $100	bleeder check valve for the breather system and a couple of molded hoses were cracked. Caused rough running and check engine light, lean fuel codes.

Audi A4 in California, United States Sep 2007 - Jun 2012
Oct 2007 40000 mi US $350	wheel bearings replaced
May 2009 50000 mi US $1090	needed new water pump as fluid was leaking. got new timing belt too!
Jun 2009 51000 mi US $250	coolant temp thermostat replaced
Jan 2011 62000 mi US $650	both axles and boot replace seat fixed and
Jun 2011 64000 mi US $50	window motor and sunroof motor replaced
Oct 2011 67000 mi US $200	Fuel pump died, pump was replaced and fuel filter was replaced
Mar 2012 71000 mi US $70	Leaking hoses to be replaced

Audi A4 in Illinois, United States Jun 2009 - Jun 2010
Dec 2009 68000 mi US $35	Ignition Coil on Cylinder 2 failed. Old coil was revision "R" - replaced with like item.
Jan 2010 69000 mi US $170	Throttle body hose popped off. Car wouldn't run. Fouled spark plugs had to be replaced as side effect.
Jun 2010 71000 mi US $650	Several minor vacuum hoses needed replaced due to crack. hanger and bushing on anti-rollbar needed replaced

Audi A4 in Pennsylvania, United States Oct 2007 - Jul 2013
Feb 2008 23000 mi	Noise coming from rear seat. Seat bracket needed retightened and greased.
Dec 2009 53000 mi US $100	Coil Packs Failed Windshield Wiper linkage/motor failed
Jun 2013 100000 mi US $165	AC needed recharged and checked for leaks.

Audi A4 in Quebec, Canada Oct 2007 - Dec 2008
Jul 2008 42160 mi C $50	Whining high pitched sound from front end...left front wheel bearing
Oct 2008 44640 mi	The rack and pinion was changed successfully with no charge under extended warranty at the dealer.

Audi A4 in Alberta, Canada Feb 2008 - Mar 2010
Mar 2008 34720 mi C $300	Computer lost settings, had to be reflashed.

Audi A4 in Ontario, Canada Apr 2011 - Mar 2016
Jun 2011 66340 mi C $220	Replace coolant flange and temp sensor
Aug 2011 72140 mi C $70	I changed the drivers door window regulator myself because the dealer wanted $495
Aug 2012 99640 mi C $150	drivers front window regulator failed again
Feb 2013 107960 mi C $100	Oil level sensor light on dash. Oil Level Sensor replaced.
Jun 2013 111600 mi C $100	Replaced drivers side front window regulator (2nd replacement)
Dec 2013 119660 mi C $265	valve cover gasket was replaced
Mar 2014 121520 mi C $2000	Replaced head gasket to fix a bad oil leak from the passenger side, rear corner of the engine block. Also timing belt, coolant pump as PM.
Jun 2014 125240 mi C $680	Left front bearing was replaced, plus front rotors and pads
Aug 2014 128000 mi C $25	replace brake light switch
Nov 2014 130200 mi C $54	Replaced left fog light bulb
Feb 2015 133300 mi C $80	Dead cell in the battery resulting in vehicle failed to start
Apr 2015 133500 mi C $40	Drivers window switch on the armrest console stopped working. Replaced console switch.
Oct 2015 140000 mi C $100	Passenger front window regulator failed and had to be replaced.
Dec 2015 142600 mi C $150	The flex pipe from the exhaust down pipe ruptured and had to be replaced.

Audi A4 in Texas, United States Nov 2015 - Jun 2018
Mar 2016 170000 mi US $225	Replace PCV hoses Leaking coolant flange and heater hose coupler
Aug 2017 192000 mi US $250	Clear CEL, diagnose low fuel mixture

Audi A4 in North Carolina, United States Mar 2012 - Jul 2012
Jun 2012 126000 mi US $1000	Front Upper & Front Rear Control Arm Bushings Oil dipstick tube broken ($20) Valve Gasket Cover cracked ($300)

Audi A4 in Texas, United States Dec 2011 - Mar 2014
Jun 2012 85000 mi US $1500	Steering rack leaked oil. Seals were bad. Had to purchase a new one at the dealer. Passenger side window regulator broken.
Jul 2012 86000 mi US $500	Radiator fan came loose. Cut into radiator.
Jun 2013 113000 mi US $400	Auxiliary fan broke off of electrical motor. New motor and fan replaced. Coolant flange behind the block was leaking water.

Audi A4 in Virginia, United States Dec 2014 - Jun 2015
Jan 2015 US $1700	Blown head gasket
Jun 2015 123000 mi US $250	Turbo inlet hose split.

Audi A4 in Connecticut, United States Nov 2010 - Jan 2011
Dec 2010 99000 mi US $1100	Replacement of fuel gauge system.

Audi A4 in Connecticut, United States May 2010 - Mar 2011
Jul 2010 103000 mi US $1100	bad ignition coils and fuel pump
Mar 2011 110000 mi US $800	vacuum leak, check valve failures

Audi A4 in California, United States Aug 2009 - Mar 2010
Aug 2009 63500 mi US $30	Replace failed coil.
Jan 2010 68000 mi US $520	Fuel Pump Failed.

Audi A4 in Pennsylvania, United States Feb 2009 - Dec 2016
Aug 2009 46000 mi US $426	Motor regulator malfunctioned in front drivers-side door.
Jan 2011 54000 mi US $1400	Fluid leaks in several areas.
Feb 2011 54200 mi	Broken sun visor clip.
Mar 2011 55000 mi	Clip replaced
Jan 2012 64000 mi US $800	Fuel pumps required replacing
Dec 2012 74000 mi US $800	Bad wheel bearing and frozen tie rods.
Jun 2015 94000 mi US $800	AC not blowing cold. Slight coolent system leak. Cracked resevoir.
Sep 2015 95000 mi US $500	Oil leak cause coil pack failure.
Dec 2015 97000 mi US $1100	Front passenger window regulator and motor. Hood alarm switch.
Aug 2016 98000 mi US $125	Tie rods needed replacing

Audi A4 in Pennsylvania, United States Mar 2011 - Jun 2014
May 2011 69000 mi US $1000	Engine Coils had a TSB issued - Dealer Replaced All 4 at N/C

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Audi A4 in North Carolina, United States Nov 2010 - Apr 2012
Apr 2012 80000 mi US $350	some sensor related to the xenon headlight

Audi A4 in California, United States Jun 2009 - Apr 2010
Sep 2009 87000 mi	CVT shifted jerkily, replaced. Warranty Direct paid $7000 bill.
Apr 2010 96000 mi	Steering rack made noise and leaked, replaced. Sound system had unfixable intermittent crackling and poor AM reception.

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Audi A4 in Massachusetts, United States Aug 2008 - Oct 2012
Jun 2012 68000 mi US $55	Window regulator broke, happens often with this model/type of vehicle. VW's are prone to it also.

Audi A4 in Minnesota, United States Sep 2013 - Sep 2014
Nov 2013 109700 mi	Power steering rack and Pinon needed to be replaced due to leaking power steering fluid. Did not do repairs due to high cost. Decided to trade in vehicle
Dec 2013 111000 mi US $1500	Water pump failure although it had been replaced 30,000 miles prior. Timing belt also replaced early.

Audi A4 in Connecticut, United States Feb 2009 - Jun 2014
Jan 2009 52000 mi	-Engine Misfire. Dealer replaced entire engine block under warrante for free. -Brake light switch error required replacement.
Jun 2009 53000 mi US $5	Blown brake light bulb.
Oct 2009 56000 mi US $50	-Ground wire faulty from ECM needed to be replaced. It caused CEL light as well as engine misfire. Car stalled and needed to be towed to Audi. Extended warranty covered the tow and repair for $50 (deductable)
Jan 2010 58000 mi US $6	-Power steering making VERY loud noise in cold weather. Once warm it would stop, however, it got worse. Quickly added to fluid and the noise stopped totally.
Oct 2011 74000 mi US $450	fuel pump died
Jan 2014 95300 mi US $1500	Water pump replacement with timing belt. Replaced all shocks and broken control arms
Jun 2014 97000 mi US $125	Drivers side window regulator replaced

Audi A4 in California, United States May 2012 - Aug 2012
May 2012 112000 mi US $650	dead fuel pump

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Audi A4 in Indiana, United States Dec 2009 - May 2011
Jan 2010 65000 mi US $500	Windshield wiper transmission replaced.
Jun 2010 66000 mi US $220	AC stopped working.

Audi A4 in Louisiana, United States Nov 2009 - Jun 2011
Dec 2009 41000 mi US $1041	Sudden fuel pump failure

Audi A4 in Maryland, United States Apr 2012 - Jun 2018
Jun 2012 57000 mi US $20	Brake switch sensor

Audi A4 in New Jersey, United States Feb 2009 - Sep 2017
Aug 2017 90000 mi	Glove box hinge broke. Pulled out and epoxied, and put a backup screw in to support. Broke again a week later.

Audi A4 in Zambia Oct 2013 - May 2014
Nov 2013 70260 mi $300	Cylinder misfire and one coil pack was found to be faulty and then replaced

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Audi A4 in Arkansas, United States Oct 2007 - Aug 2009
Nov 2007 38000 mi	Brake switch failed causing brake lights to stay on (most of the time); caused battery to discharge
Oct 2008 55000 mi	Replace right front wheel bearing.

Audi A4 in Massachusetts, United States Apr 2010 - Jun 2021
May 2010 68000 mi US $50	refrigerant recharged
Jun 2010 70000 mi	engine check light on highway, limp mode for one minute, slowed, then light stopped, code shows misfires but coils just replaced as part of recall.
Feb 2011 75300 mi US $145	replaced transmission mount
Sep 2011 79000 mi US $500	engine coolant temp. sensor
Jan 2012 74500 mi	crankcase breather system faulty causing oil consumption
Aug 2012 83900 mi US $250	alternator not charging needed new one
Dec 2012 86000 mi	Scored cylinder walls, resulting in oil consumption, new factory short block under warranty as this was one of the factory covered 1.8t sludge cars.
Oct 2013 89000 mi US $350	tied rods clunking and squeeking
Jun 2014 91000 mi US $400	Hole in condensor
Sep 2017 110000 mi US $200	wobble from front under acceleration worn cv

Audi A4 in California, United States Jul 2010 - Jun 2011
Jan 2010 48000 mi	replaced water pump due to wetness on outside of pump. replaced timing belt because water pump was out.
Sep 2010 61000 mi US $8000	CVT transmission replaced due to slipping and stuttering when accelerating from stop. also would not move for first 5 seconds when accelerator was depressed. CVT transmission replaced due to slipping and stuttering when accelerating from stop. also would not move for first 5 seconds when accelerator was depressed.

Audi A4 in Utah, United States Oct 2009 - Nov 2010
Dec 2009 39000 mi US $180	Car would appear to studder and then stall when coming to a stop occasionally, engine would not rev past 1300 when accelerator pressed, and car would not move, drive selection (PRNDS) on instrument gauge would all be highlighted at once.
May 2010 42800 mi US $100	Ignition Coils failed, replaced under Audi Ignition coil service campaign Cam Adjuster Seals leaking

Audi A4 in Florida, United States Oct 2010 - Feb 2012
Nov 2010 38000 mi US $1900	Had to replace the transmission TCM unit on a CVT at only 37k
Dec 2011 48000 mi	Warranty exchange on the TCM
Feb 2012 48000 mi	they replaced the TCM as part of the warranty

Audi A4 in California, United States Sep 2011 - Oct 2013
Aug 2013 121000 mi US $250	Transmission control module is failing and needs to be replaced.
Oct 2013 124000 mi	Transmission control module rr

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Audi A4 in Florida, United States Feb 2010 - Jun 2014
Aug 2010 61000 mi US $1600	Reverse flashing gear selection indicators. Intermittent, would reset when car restarted. Diagnosed as Faulty CVT control computer.
Nov 2010 64500 mi US $1800	Gear Selector lights flashing, Replace transmission computer and reprogram
Jun 2013 86000 mi US $550	jerky take off

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Audi A4 in Massachusetts, United States Feb 2013 - Oct 2021
Jun 2013 99000 mi US $320	Needed new oil pressure and oil level sensor
Aug 2014 110000 mi US $300	SRS - Airbag System. Seat Belt Igniter failed Srs airbag light. Diagnosed to bad connection with odbc2 computer. Replaced connector.

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Audi A4 in New Jersey, United States Nov 2011 - Dec 2011
Dec 2011 120000 mi US $335	Replace front passenger wheel bearing.

Audi A4 in New Jersey, United States Sep 2007 - Mar 2010
Oct 2007 113000 mi	Told I need a new engine because of excessive valve wear. Note: Dealer performed ALL scheduled maintenance on this car. Audi refused to particpate in the $10K cost, so I traded car for a Prius.

Audi A4 in North Carolina, United States Nov 2010 - Jan 2011

Audi S4 in New York, United States Dec 2011 - Jan 2013
Jan 2013 83000 mi US $200	Had to replace maf sensor

Audi A4 in California, United States Mar 2011 - Apr 2011
Apr 2011 98000 mi US $200	power steering damaged on the gears. temporarily fixed twice at 200 each repair. to properly repair the engine needs to go off the car. car sold

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Audi S4 in Great Britain Mar 2010 - Apr 2016
Jul 2010 77000 mi £250	electric window winder lifter mech failed, common fault, part replaced Air conditioning was ineffective had to be vac'd out and repressurised, no leaks found.
Feb 2013 84200 mi	Glow plugs failed Road spring snapped, new one fitted Drive belt about the fall off, bearings failed in belt guide and tensioner
Jul 2013 85200 mi £80	A/C recharged and dye added to trace leak
Jul 2015 105000 mi £120	reservoir bottle had split. Had to be replaced
Apr 2016 114000 mi	CVT gearbox, input shaft has failed, car is write off.

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Audi S4 in France May 2010 - Sep 2014
Apr 2013 80700 mi €500	Two electrical relays were changed to prevent rapid battery discharging that was frequently leading to car not starting. Parking sensor malfunction. Emitting a high pitched beep different from usual noises

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Audi A4 in Ireland May 2009 - Jun 2011
Feb 2010 138880 mi €275	Tensioner pulley which tensions auxillary belt for power steering, compressor and alternator went faulty. Front bumper and radiator had to be removed to get at the tensioner!

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Audi A4 in Poland May 2010 - Jun 2011
Sep 2010 138880 mi $1700	camshafts got broken (2.5tdi) with automatic gearbox, that was weird
Oct 2010 140120 mi	Left power windows, right power locks not working. Open on front right door, found water on circuit board. Dried and cleaned this with alcohol (spiritus), and windows started working, but locks still not.

Audi A4 in California, United States Feb 2009 - Jun 2011
Mar 2009 62000 mi US $1200	Timing belt replaced due to water pump leakage, and valve seal replaced due to oil leakage.
Feb 2010 73000 mi US $300	Repaired engine bonnet release lever

Audi A4 in California, United States Nov 2006 - Mar 2010
Jan 2007 81000 mi US $1300	Rear windshield sprayer not working. Windshield front [washer] system leaked 500USD repair.

Audi A4 in Texas, United States Nov 2006 - Apr 2007
Dec 2006 43000 mi	Carmax told me I had engine sludge. Audi mechanic looked at oil cap, said it was bad sludge, but after two days with my car they said it was normal. Also replaced cupholder, battery, ball joint, and flushed brake fluid. Rear seat cupholder wouldn't pop out of center armrest, leaving the backseat with no cupholders.

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Audi A4 in Netherlands Sep 2016 - Oct 2016
Oct 2016 110360 mi	CVT issue (also called multitronic).

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Audi A4 in Washington, United States Sep 2006 - Mar 2010
Oct 2006 43000 mi	HVAC air distribution servo motor/s hunting for position with car turned off. Automatic temperature regulation not working properly, air too warm. Air distribution not ccorrect.
Dec 2006 46000 mi	Replaced air temperature control servo motor and air flow control servo motor.

Audi A4 in California, United States May 2010 - Mar 2011
Mar 2011 73000 mi US $1437	Coolant leak; hoses and seals replaced; 80k service completed at same time

Audi A4 in Ontario, Canada May 2008 - Apr 2010
Mar 2009 78120 mi C $30	Coil pack failure, replaced with OEM part.
Apr 2009 78740 mi C $25	Had to replace coil pack. Second one in as many months.
Apr 2010 86180 mi	coolant temp sensor

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Audi A4 in Michigan, United States Dec 2009 - Jul 2015
Dec 2009 71010 mi US $260	Replace radiator Replace driver side rear diff seal Replace center diff output seal
Jan 2010 73000 mi US $100	Driver side HID ballast replaced
Sep 2011 104000 mi US $319	Replace all front suspension members.
Oct 2011 104800 mi US $18	Lower coolant temp sensor failed.
May 2012 115000 mi US $175	Front strut replacement
Aug 2012 118300 mi US $100	Replace all sway bar end links.
Dec 2012 124000 mi US $500	Turbocharger replaced.
Mar 2013 128000 mi	Replace all 4 ignition coils. Replace main coolant temp sensor.
Apr 2013 128700 mi	Replace primary O2 sensor. Driver rear door wiring broken.
Jun 2013 132000 mi US $300	Replace exhaust.
Oct 2013 135700 mi US $150	Replace front lower control arms, bushing shot.
Apr 2014 143000 mi US $5	Replace cracked dipstick tube. Replace rear license plate mount. Clip nuts rusted, making it impossible to remove the license plate. Audi of course doesn't just sell the clip nuts and removal destroys the license plate mount. Replace j plug and turbo coolant lines.
May 2014 143300 mi US $28	Replace cam cover and intake cam seal.
Sep 2014 144000 mi US $2000	Replace cam seal Replace VVT gasket Replace timing belt/water pump/tensioner Replace thermostat Replace passenger axle and seal Replace clutch
Jul 2015 152000 mi	Car burned up. Probably from a leak in the turbo oil feed.

Audi A4 in California, United States Jul 2014 - Aug 2015
Aug 2014 104200 mi US $2000	Transmission syncros/planetary gear shattered. 5-sp manual. Replaced clutch, clutch slave, transmission with same model from 2002 car with 124k miles
Aug 2015 108000 mi US $500	Alarm backup battery leaked and damaged alarm. Need to replace. No alarm beeps or warnings.

Audi A4 in Ontario, Canada Feb 2009 - Dec 2011
Sep 2011 115320 mi C $500	CV boot ripped - replaced whole shaft rt.side Front brakes done - over 60000 on that set

Audi A4 in New York, United States Sep 2008 - Jun 2011
Jan 2010 92000 mi US $200	One spark plug coil failed Exhaust pipe rust hole repaired by replacing pipe
Aug 2010 96000 mi US $400	Front wheel bearing was noisy. It was replaced with a new one. Original exhaust hanger was rusted off, new one welded on

Audi A4 in Ohio, United States Jun 2013 - Nov 2017
Jul 2013 82300 mi US $350	Bad ABS controller module, removed and sent for repair.
Jan 2015	Parking brake freezing
Jun 2017 100000 mi	Got a new battery and in-cabin filter
Oct 2017 100000 mi US $500	replaced front pads and rotors, flushed fluid

Audi A4 in Ontario, Canada Jul 2014 - Jun 2015
Sep 2014 115320 mi C $205	Flex pipe rotted out, was replaced
Dec 2014 121520 mi C $25	Cylinder 3 misfire. Coil pack replaced
Feb 2015 125860 mi C $70	Diverter valve malfunctioned; replaced but caused turbo to leak coolant into the oil. Will need to be replaced at a later date.
Apr 2015 128320 mi C $630	Motor mounts had failed and were leaking. Mounts replaced.
May 2015 131440 mi	Windshield wiper transmission seized.
Jun 2015 131440 mi	Passenger side window regulator had gone bad. Front and rear control arm bushings had worn out.

Audi A4 in California, United States Feb 2007 - Jul 2012
Apr 2011 120000 mi	All 4 coil packs replaced.
Mar 2012 129000 mi US $395	Rear coolant flange needed replacement.
Jul 2012 131000 mi US $650	Cylinder head and valves failed, small hairline cracks on 2nd cylinder.

Audi A4 in British Columbia, Canada Feb 2016 - Jun 2022
Oct 2016 143100 mi C $40	Progressively worsening leaking "J-plug" on the thermostat housing. Self replaced, was a PITA. Engine block breather tube deteriorated, then split and torn. Replaced this one part and successfully connected into remaining original breather system w/o the other tubing/ valve crumbling and breaking Part cost $45.
Jun 2017 141360 mi C $120	Vacuum line had small leak causing rough idle even though drivability and power were fine during acceleration and at speed.

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Audi A4 in Texas, United States Aug 2009 - Mar 2010
Sep 2009 77000 mi US $85	Air conditioner wasn't cooling properly. Shop recharged and tested system, and it is now cooling properly.
Nov 2009 77900 mi	Water leak from engine compartment into driver's side footwell.

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Audi A4 in New Zealand Dec 2017 - Mar 2019
May 2018 136400 mi $800	Require new fuel pump

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Audi A4 in Virginia, United States Jul 2013 - Apr 2016
Jul 2015 138700 mi	car wouldn't start but battery was new. needed new starter solenoid.

Audi A4 in South Carolina, United States Jul 2009 - Mar 2010
Aug 2009 80000 mi US $600	Valve cover gasket was bad and leaking thus ruining 1 or more coilpacks

Audi A4 in California, United States Jul 2009 - Mar 2010
Aug 2009 63000 mi US $6100	I drove off the used car lot and five miles down the road the light came on. Coolant waring light came on and overheating. Replaced the water pump and timing belt. (Then we got the car back and the head gasket was blown and that's still not fixed.) the car has a blown head gasket and a cracked head.
Sep 2009 64000 mi US $756

Audi A4 in California, United States Jul 2010 - May 2011
May 2011 74000 mi US $400	makes sounds when turning

Audi A4 in Australian Capital Territory, Australia Jun 2010 - Jun 2011
Jul 2010 61380 mi	The rear tailights are common problem with this car. Muck builds up causing the light bulbs to short out.

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Audi A4 in Georgia, United States Nov 2008 - Mar 2010
Dec 2008 119000 mi US $1400	Thermostat & Heater Core Replaced.

Audi A4 in Colorado, United States - Feb 2010
Feb 2010 19000 mi	Drivers Side tail light burned out.

Audi A4 in Texas, United States Jan 2006 - Mar 2010
Jul 2006 28000 mi US $19000	36000 miles took to dealer for leaking Valve cover gasket and they said a Motor Mount needed to be replaced also. Covered under warranty
Mar 2007 36000 mi	Replaced radio due to lines in the display, Covered by Dealer under warranty
Jan 2008 51000 mi US $240	DIY change Coil Packs, One way valve and spark plugs.

Audi A4 in British Columbia, Canada Jul 2015 - Jan 2018
Jul 2015 99200 mi C $600	Fitted third heater core to the car Leaking trans fluid.Trans pinion output seal leaking.Pinion and output shaft seals replaced.
Feb 2016 99700 mi C $400	Turbo boost low. New Dump valve fitted. Update April 2017: didn't fix, turbo boost issue still present but not a big problem- drives ok.
Oct 2016 105900 mi C $170	Failed injector, dealer wanted to replace all 4 and all 4 plugs. Had car towed home and repaired myslef for $170. Flexpipe broken Repaired injectors myself.
Jan 2017 109100 mi C $270	Radiator leaking at seals (plastic to metal on passenger side)
Jan 2018 130820 mi C $30	HID bulb flickering

Audi A4 in Pennsylvania, United States Feb 2011 - Mar 2011
Mar 2011 63800 mi US $912	coolant leaking replaced a few clips, conduits and a coolant flange replaced comfort control module part: $200 labor: $300 coolant leaking replaced a few clips, conduits and a coolant flange replaced comfort control module part: $200 labor: $300

Audi A4 in Utah, United States Jan 2011 - Jun 2014
Apr 2011 120000 mi US $250	water pump failed and leak all antifreeze on the road. Had to keep filling with h20 to get it home. Happened close to home. Did the serpintine belt and timing belt with tensioner too.
May 2011 122200 mi US $34	when I replaced the water pump accidentally let out the freon when I removed a/c cooler radiator. Put the 1st charge in with oil before rest of freon. system was sealed.
Sep 2011 133000 mi US $40	purchased part on Ebay and will repair it shortly. It is the alarm and module located in the trunks.
Dec 2012 165000 mi US $4750	Spark plug wires shorting out and warn out.
Jun 2013 178000 mi US $30	Replacing thermostat
Jun 2014 198000 mi	Timing belt broke

Audi A4 in Michigan, United States May 2013 - Oct 2013
Jul 2013 114000 mi US $350	Cam shaft positioning sensor replaced Replaced cam shaft positioning sensor. Prevents occasional stalls when car is cruising or decelerating and can't accurately sense the speed.
Sep 2013 115000 mi US $400	Wiper blade transmission assembly was corroded, and wouldn't move. Shop replaced the part and broke windshield in process. Replaced windshield no charge
Oct 2013 115000 mi US $1300	Independent shop couldn't read codes, dealer could. Independent shop replaced ABS rear left sensor, ABS, traction control light still on. Dealer recommended replace ABS control module (900), said sensor was not problem.

Audi A4 in Massachusetts, United States Apr 2016 - Apr 2018
Sep 2016 68000 mi US $1100	Replaced the entire exhaust system.

Audi A4 in Ontario, Canada Feb 2008 - Jun 2011
Mar 2008 67580 mi C $850	Replace camshaft tensioner gasket & valve cover. Replace secondary injection flange. Replace broken left side fog light assembly. Replace left front headlight washer pump. Repair homelink (garage door opener) module.
Sep 2008 68820 mi	Right rear running light replaced.
Dec 2008 71300 mi C $150	Oil leak tracked to valve cover. Could have been because of the extreme cold that day (-35C).
Mar 2009 74400 mi C $400	Dealer replaced valve cover gasket. Water pump impeller blade was broken and replaced by shop. Timing belt replaced. Front right differential gasket dried out and leaked oil ... replaced by shop mechanic
Jul 2009 81840 mi C $450	Right rear differential gasket replaced
Mar 2011 87420 mi C $600	A/C recharged and front signal light lamp replaced.
Apr 2011 89280 mi C $750	Wheel bearing replaced

Audi A4 in Indiana, United States Jul 2013 - Jul 2014
Aug 2013 52000 mi US $80	MIL light P0171 code. Determined that a check valve was cracked causing a vacuum/boost leak. removed and replaced and cleared MIL
Jan 2014 54000 mi US $100	Car not heating up. replaced thermostat
Jul 2014 60000 mi US $30	Misfire cylinder 1. Replaced coil pack

Audi A4 in Minnesota, United States Jan 2005 - Mar 2010
Jul 2005 39000 mi	radio antenna amp replacement
May 2006 44000 mi	wrong turn signal turning on then switching to correct signal after a random period of time, usually around 10 seconds
Jul 2007 52000 mi US $45	left rear wheel well liner loose, new liner installed
Feb 2008 56000 mi US $8500	oil pressure light on. engine replacement necessary due to oil sludge.
Mar 2008 56500 mi	wiring harness to starter failed, engine would not start.
May 2008 58000 mi	coil pack went bad causing engine to misfire.
Feb 2009 75000 mi US $35	Oil dipstick tube leaving residue inside, dripping into oil.

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Audi A4 in Maine, United States Nov 2006 - Jul 2009
May 2009 61000 mi US $500	Flange connecting evaporator to radiator....close to this anyhow. At 7 years old and 61,000 miles it will also need a new clutch soon we were told. Sounds normal for the age and mileage.

Audi A4 in Connecticut, United States Aug 2012 - Sep 2014
Jul 2014 157300 mi US $250	Fuel pump started to make a loud whining sound during vehicle operation and caused issues when attempting to start the car. Replaced with an OEM fuel pump.
Aug 2014 157600 mi US $900	Original clutch began to slip. Replaced with new, aftermarket clutch with a higher torque rating. Original motor and transmission mounts replaced.

Audi A4 in Texas, United States Oct 2006 - Mar 2010
Nov 2006 50000 mi	Misfire when cold
Feb 2007 52000 mi	Misfire at startup

Audi A4 in Alabama, United States May 2012 - Oct 2012
Oct 2012 156000 mi US $2000	valve cover gasket cracked due to the hose providing the coolant and water breaking off got water and oil into the spark plugs

Audi A4 in Illinois, United States Apr 2003 - Mar 2010
Jun 2003 7500 mi	Sunroof operating on it's own, switch replaced under warranty.
Jul 2003 8000 mi	Window switch cluster in drivers door not responding. Replaced under warranty.
May 2005 35000 mi	Drivers side front wheel assembly making a clicking noise, loud enough to hear a block away. Dealer was "unable to reproduce symptom".
Sep 2005 40000 mi	Passengers side xenon light severely flickering. Dealer service department was "unable to reproduce symptom".
Dec 2005 45000 mi	ECU failure. Vehicle was still drivable, but the CEL was not able to be cleared. Replaced under warranty.
Mar 2007 65000 mi US $300	Fuel pump failed, repaired myself
May 2007 67000 mi US $220	Radiator leaking, replaced, did the repair myself

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Audi A4 in Washington, United States Oct 2008 - Apr 2011
Jul 2008 52000 mi US $400	replaced coolant flange at rear of engine block - leaking.
Nov 2009 60000 mi US $570	thermostat failed, replaced. replaced defective thermostat.
Aug 2010 67000 mi US $350	Brake fluid reservoir leaking at cap. Replaced cap and reservoir; flushed system.

Audi A4 in California, United States May 2009 - Aug 2018
Jun 2009 90000 mi US $1200	MIL was on. Thought problem was coil pack. Mechanic found cause of MIL to be rotten crankhouse vent hose, not coil pack. Had item replaced, slight valve cover leak noticed as well.
Nov 2011 117000 mi	CEL came on, replaced the temperature sensor.
Feb 2013 126200 mi US $558	replaced ugly looking coolant and coolant tank. was told by tech that previous person might have added the wrong coolant for top off. tech advised another coolant flush would be ideal to flush out old/bad coolant.
Jun 2013 127000 mi US $180	rear left window regulator broke and was replaced with OEM part supplied by owner
Jul 2013 127300 mi	oil level sensor light came up. replaced sensor.
Aug 2015 140000 mi US $250	grounding wires for license plate light went faulty
Jun 2016 144000 mi US $148	replaced mass air flow sensor
Apr 2017 155000 mi US $1798	ECU tune for big turbo. New injectors, battery, and spark plugs. Replaced bad 3-way valve & jet pump. stock turbo went bad, replaced with big turbo. new coolant and expansion tank reservoir.
May 2018 160000 mi US $2000	Replaced bad boost pressure sensor
Aug 2018 163919 mi US $2500	chipped 1st gear, replace with used transmission clutch was slipping, replaced with upgraded clutch & flywheel kit coolant leak, replaced coolant flange from a previous job at a different shop replaced mass air flow housing replaced hood latch sensor and hood strut

Audi A4 in Massachusetts, United States May 2010 - Jun 2011
Jan 2010 75000 mi US $675	valve cover gasket worn, had it replaced coolant shooting out from rear of engine. Replaced Rear engine flange.
Jul 2010 85000 mi US $500	fuel filter clogged, resulting in a burnt pump. Replaced fuel filter as well.

Audi A4 in Illinois, United States Mar 2008 - Mar 2012
Jan 2008 41000 mi US $400	headlight leveling system failed
Jul 2008 45000 mi US $300	coolant leak from rear of engine
Aug 2008 45250 mi US $200	coil failed
Jan 2009 45250 mi US $4000	AWD system failed causing poor handling
Apr 2011 83800 mi	auto leveling lights failed coil failed
Oct 2011 90500 mi US $600	Plastic check valve failed causing a leak

Audi A4 in New Hampshire, United States Aug 2009 - Apr 2012
Jul 2011 94700 mi US $900	Bearings were going. Needed to be replaced. Normal wear and tear

Audi A4 in Florida, United States May 2012 - Jul 2012
Jun 2012 129000 mi US $600	Oil pressure light came on, pickup tube in oil pan was clogged, replace tube. Also replaced engine mount.

Audi A4 in North Carolina, United States Apr 2009 - Jul 2010
Nov 2009 70000 mi US $275	Ignition Coils #1 and #2 went bad causing engine light to come on. This caused the car to shudder and was advised not to be driven and was towed to a auto shop recommended by a friend who is good at import euro cars. THERE IS A Campaign NOW.
Mar 2010 72000 mi US $250	The rear driver side window regulator broke.
Apr 2010 72000 mi US $250	The rear passenger side window regulator broke. Currently waiting to see if the front regulators break.

Audi A4 in Connecticut, United States Mar 2015 - Jul 2018
Jun 2015 114000 mi US $100	Failure of the glove box door hinges
Sep 2015 118000 mi US $100	Replaced switch
Apr 2016 124500 mi US $1250	CEL 2181 cooling out of range. Replaced thermostat and manifold. Alternator bearings were getting noisy. Alternator removed to replace thermostat, so got a new one. Serpentine belt and tensioner replaced
Sep 2016 129000 mi US $850	Replace RF wheel bearing Replace flex pipe in exhaust
Jun 2017 135000 mi US $500	Small coolant leak traced to famous coolant flange Windshield washers had low pressure Rear seat backs not locking in place
Mar 2018 149000 mi US $2500	Brake pads and rotors

Audi A4 in Alberta, Canada Apr 2015 - Oct 2015
Oct 2015 94860 mi C $60	Wiring between chases and door wore out.spliced and replaced.

Audi A4 in Wisconsin, United States Sep 2007 - Jul 2014
Mar 2007 43000 mi US $100	ashtray mechanism failure
Apr 2007 44000 mi US $100	valve cover gasket leak, repaired.
Aug 2007 48000 mi US $50	driver main window switch assembly failure
Sep 2007 49000 mi US $2000	clutch failure
Oct 2007 50000 mi US $200	cracked radiator seam
Dec 2008 62000 mi US $60	Typical thermostat failure. replacing part takes 2-3 hours.
Jan 2009 62000 mi US $300	Car unable to start, no diagnosis so far.
Mar 2009 63000 mi	Low oil pressure light, checked oil pick up tube inside oil pan and found nothing. Cleaned oil tube and performed oil change, also cleaned oil pressure switch contact. Light did not return.
Feb 2013 99800 mi US $150	Replaced mass air flow sensor
Apr 2013 100800 mi US $400	Broken driver side inner CV boot, joint failing. Replaced both front axles as preventative.
Jun 2013 104000 mi US $20	Suction jet pump failed, replaced unit
Dec 2013 109000 mi US $10	Replaced crank position sensor
Jun 2014 115000 mi US $200	Driver door wiring harness

Audi A4 in California, United States May 2014 - Jun 2014
Jun 2014 116000 mi US $600	Cracked pcv valve, and several other vaccuum valves in the engine area.

Audi A4 in West Virginia, United States Jun 2016 - Aug 2017
Oct 2016 121800 mi US $180	Exhaust separation. Stainless steel flex pipe was used to replace the separated section.
Mar 2017 131000 mi US $700	Front driver wheel bearing replacement and 4 wheel alignment

Audi A4 in Ontario, Canada Jan 2009 - Mar 2010
Jan 2009 89900 mi C $100	Replaced first coil pack (Failure)
Feb 2009 89900 mi C $1200	Water pump replacement.

Audi A4 in Connecticut, United States May 2011 - Jul 2011
Jul 2011 75000 mi	Sold with oil leak in engine near timing belt area.

Audi A4 in Iowa, United States Dec 2011 - Jan 2012
Jan 2012 US $1000	Misfiring Cylinder Ignition Coils Oil in Cylinders

Audi A4 in Wisconsin, United States Nov 2008 - Mar 2010
Dec 2008 65000 mi US $90	Windshield washer pump had to be replaced, because it was not functioning and lead to loss of fluid

Audi A4 in Pennsylvania, United States Sep 2010 - Apr 2017
Apr 2014 76000 mi US $1200	There was a leak from the steering column. I have had this problem for awhile. I was told I need a new rack and pinion.
Jan 2016 82000 mi US $650	Coolant light kept coming on. Found a leak in one or two hoses going into coolant system and worn ring. Will give move details when I pick up car tomorrow.
Apr 2017 90000 mi US $1266	Removed and replaced timing belt, timing components and water pump. Drained engine oil. and removed and replaced engine air filter. Checked fluids. Inflated and adjusted tire pressure. Removed and replaced engine oil level module;

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Audi A4 in Nevada, United States May 2008 - Jun 2018
Nov 2008 90000 mi US $50	Coolant temp sensor intermittent failure. Mirrors move when car unlocked with remote. Headlight switch backlight led inorperative. Center differential output shaft seal leaking (fourth time this year). coolant expansion tank replaced because it was leaking.
Feb 2010 122400 mi US $700	replaced catalytic coverter
May 2010 127000 mi US $250	replaced front upper control arms
Jun 2010 131000 mi US $10	power steering pump noisy, flushed and refilled power steering fluid. no more noise
Jan 2011 140000 mi US $1900	a/c compressor seized. compressor and condenser replaced
Apr 2012 170800 mi US $600	a/c compressor replaced front wheel bearing replaced
Mar 2014 204000 mi US $15	clutch pedal switch replaced
Dec 2014 209000 mi US $250	front axle cv boot leaking. replaced axle
Feb 2015 210400 mi US $140	replaced battery
Sep 2016 236000 mi US $20	rear window regulator broke, bought plastic parts and replaced.
Nov 2016 237000 mi US $7	coolant temp sensor gasket failed.
Jan 2017 215300 mi US $80	replaced ballast on driver's side HID headlight.
Apr 2017 246605 mi US $230	replaced upper and lower control arms
Dec 2017 262000 mi US $7	rear window regulator broke. replaced regulator
Jan 2018 263000 mi US $120	front axle boots replaced, one had failed wheel bearing replaced

Audi A4 in Georgia, United States Feb 2008 - Sep 2011
Aug 2008 147000 mi US $110	Replaced noisy accessory belt tensioner. Replaced belt while I was in there. Noise is gone.
Nov 2008 153000 mi US $35	It was just a cracked expansion tank that was replaced.
Apr 2009 157000 mi US $200	Pre Cat O2 sensor on passengers side had short. Replaced both sensors on B1 Replaced coolant temp sensor to clear random misfires only noticeable with diagnostic monitor. This was a long term problem that was fixed by random maintenance.
Oct 2009 165000 mi US $110	Replaced pre and post O2 sensors on Bank2. Replaced check valve and broken vac line as well.
May 2011 188000 mi US $500	Replaced bad upper control arms and sway bar links. Bought kit to replace all because it was cheaper.
Jul 2011 189000 mi US $100	it was just the drivers side cv boot. replaced the whole axle.

Audi A4 in Michigan, United States May 2009 - Jan 2016
Apr 2011 88000 mi US $2500	Pcv valve froze. Blew out seals. oil leaks everywhere.new pcv valve timing belt and seals.
Jan 2014 125000 mi US $50	Windshield wiper arm broke, brittle plastic broke in sub zero cold, dealer only part, because of the weather the car was not usable for the weekend
Jan 2016 121000 mi US $50	Exhaust connector rusted thru

Audi A4 in Wisconsin, United States - Jun 2008
Jun 2008 75000 mi	Oil pressure sending switch.

Audi A4 in Pennsylvania, United States Mar 2014 - Apr 2018
Mar 2014 116000 mi US $650	Clutch & Flywheel needed replacing. Dual Mass Flywheel failed and was causing drivetrain vibration
Jul 2014 124000 mi US $700	replaced all four shocks with Koni Yellow Sports & replaced front control arms.
Nov 2015 135000 mi US $120	Coil pack replacement
Oct 2017 147500 mi	Intake actuator drive unit developed internal vacuum leak. I plugged a vacuum like associated with the leak. Now only 1/2 of the actuator draws vacuum. Not a perfect fix, but its getting the job done.
Apr 2018 150000 mi US $75	Replaced upstream oxygen sensor on the drivers side

Audi A4 in California, United States Apr 2013 - May 2013
May 2013 50000 mi US $900	rack and pinion broke

Audi A4 in Pennsylvania, United States Dec 2010 - Dec 2016
Dec 2010 132000 mi US $510	Change OEM silencer (Middle mufflers)
Aug 2012 147900 mi US $1500	Changing the cam seal of the right blank
Nov 2014 161300 mi US $230	Brake switch;

Audi A4 in South Carolina, United States May 2011 - Feb 2017
Apr 2014 125800 mi US $1500	Freeze Plug on the waterpump began to leak. Waterpump was still good, with only 40K miles on the pump. Water pump had to be replaced to stop the leak. $1500 repair b/c behind the timing cover.
Mar 2015 142000 mi US $500	coolant leak
Oct 2015 155500 mi US $175	ABS system failure, linked to speedometer. CHEAPABS.COM will make the repair for $150, but must remove the module (2 hours work).
Dec 2015 158000 mi US $500	Driver window's motor failed for the 2nd time. Very expensive each time.
Aug 2016 173000 mi	2nd repair of pipe on rear of engine 18 months ago. Warrantied, otherwise $700 cost.
Feb 2017 178000 mi	Tie rods worn out.

Audi A4 in New York, United States Jun 2014 - Jan 2018
Oct 2015 140300 mi US $400	Replace axle. Torn cv joint
Aug 2016 150000 mi	worn rubber hoses

Audi A4 in Michigan, United States Apr 2014 - Apr 2018
Apr 2016 131580 mi US $516	Replaced front and rear shocks; aligned vehicle Replaced output shaft seal (rear) and drive axle seal (rear; transmission fluid replaced accessory belt tensioner and serpentine belt Right front wheel bearing replaced after a noise developed soon after previous repair trip.
Aug 2017 148000 mi US $1200	A/C pump froze up and destroyed serpentine belt and one pulley. Together they cost about $1100 plus a standard oil change.
Mar 2018 152000 mi US $500	Replaced coil packs due to CEL codes

Audi A4 in Pennsylvania, United States - Feb 2009
Oct 2007 51739 mi US $178	Repair clutch pedal switch
Nov 2007 55619 mi US $25	Replace right rear tail light
Jan 2008 59275 mi US $29	Replace interior light under right front seat
Feb 2008 60668 mi US $29	Replace left rear tail light bulbs
Aug 2008 70899 mi US $1351	Replace all coil packs, evap system purge valve Replace front brake pads and rotors Replace driver window switch module
Jan 2009 80328 mi US $43	Replace right front turn signal
Feb 2009 82766 mi US $280	Repair license plate bulb assembly

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Audi A4 in Connecticut, United States - May 2008
Feb 2008 62000 mi US $2800	CAT converter
Mar 2008 63000 mi US $400	Driver's window (regulator)
May 2008 68000 mi US $1200	Fuel pump ... died in the fast lane

Audi A4 in Ontario, Canada Sep 2015 - Sep 2018
Dec 2015 171120 mi C $35	Leaking windshield washer hose
Mar 2017 208320 mi C $2000	Timing belt, rollers water pump Valve cover gaskets replaced Replaced flex joints in exhaust new front brakes and lines
Jan 2018 212040 mi C $350	Gas smell in cabin, replaced purge valve

Audi A4 in Arkansas, United States Jul 2012 - Jan 2016
Aug 2012 110800 mi US $200	I have the 3.0 V-6. Ignition coils were replaced Dec 2010 with new, improved design under recall. One of the new ignition coils briefly failed (set code). Replaced it.
Oct 2013 125500 mi	Ck engine light on intermittently. Code diagnosis indicates one catalytic converter needs to be replaced. Discussed with several mechanics and decided not to replace. No drivability issues and likely will not impact operation for a long time if ever.
May 2014 134300 mi US $1150	Replaced water pump
Oct 2014 140300 mi US $170	Replaced faulty crank position sensor
Apr 2015 145500 mi US $200	Replaced one faulty ignition coil.
Aug 2015 150300 mi US $700	Engine cooling module replaced. Fault prevented the electrically driven engine cooling fan from turning on.

Audi A4 in Puerto Rico Jan 2004 - May 2012
Jan 2004 22000 mi US $500	front windshield
Jan 2005 32000 mi US $500	front windshield
Jan 2008 63000 mi US $700	steering pump
Jun 2008 65000 mi US $200	drivers side window button
Oct 2008 68000 mi US $200	windshield wiper repair
Jan 2009 71000 mi US $1200	timing belt and steering pump
Feb 2009 71000 mi US $300	motor for windshield wipers
Mar 2009 71000 mi US $200	hood latch release
Mar 2011 84000 mi US $1700	replaced steering rack that was leaking
Aug 2011 66000 mi US $350	Exhaust system was making a loud noise. Took it to local mechanic who recommended a Meineke shop who would weld in a new piece. both sides of the car had to be done.

Audi A4 in Ontario, Canada Jun 2010 - Mar 2011
Oct 2010 94000 mi C $100	trans. left hand output seal leaking. seal replaced and diff. fluid topped up.
Feb 2011 99200 mi C $412	Front crankcase oil seal popped out of housing, massive oil leak.

Audi A4 in Colorado, United States Jan 2010 - Jan 2013
Sep 2010 101000 mi US $1	Washer pump went out. Replaced with new part bought off ebay for $12. Problem fixed.
May 2011 106000 mi	Ignition Coils replaced under warranty.

Audi A4 in Utah, United States Jan 2007 - Jan 2016
Jul 2007 43878 mi US $850	replace failing power steering pump
Aug 2008 44765 mi	trunk release switch is broken. not repaired yet
Jan 2009 53465 mi US $800	replace two oxygen sensors
Feb 2009 54547 mi US $250	replace two crankcase breather tubes that had cracked
Mar 2010 62830 mi US $363	windshield wiper transmission replaced replace windshield wiper transmission
Aug 2012 86600 mi US $1250	Replaced glovebox hinge.
Dec 2015 108000 mi US $250	Yellow oil sensor display on instrument cluster. Replaced oil pressure sensor.

Audi A4 in Michigan, United States Jun 2010 - Jun 2011
Jul 2010 80000 mi US $800	AC compressor has failed for the fourth time in 4000 mi. First time it was the bolts that backed out, caught the pulley and destroyed the comp. Second time, internal modulator failed and third time the clutch was smoked.

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Audi A4 in Tasmania, Australia Nov 2021 - Jul 2022
Jan 2022 67580 mi A $2500	Replaced all known parts that fault after 100000kms

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Audi A4 in Ireland Apr 2007 - Jul 2017
Jan 2008 96100 mi €1277	Leak around the pollen filter. Water leaked in on top of ECU and there were multiple electrical problems due to then. Leak found and repaired, ECU replaced. Delay in supply of replacement ECU.
Jan 2011 176080 mi €435	Front driver's side wheel bearing replaced.
Jul 2014 276600 mi €150	Passenger side track rod end worn after 445,000 KM was replaced
Sep 2014 280240 mi €300	Intercooler had a crack, needed to be replaced.
Jul 2015 295400 mi	After 475K replaced bushings, rear shocks and springs.
Mar 2016 314340 mi €100	Rear wiper motor needed to be replaced
Jun 2016 318680 mi €100	The syphon tube where the dipstick goes cracked and had to be replaced. Coolant pipe perished and cracked
Sep 2016 324260 mi	Intercooler replaced after crack appeared.
Dec 2016 328600 mi €500	Replaced 3 x calipers which were seized.

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Audi A4 in Colorado, United States Dec 2013 - Dec 2014
Dec 2013 77000 mi US $25	Replace temp sensor because readout was intermittent

Audi A4 in Texas, United States Mar 2010 - Jun 2018
Mar 2014 49000 mi US $900	Leaky gasket
Jul 2017 60000 mi US $389	Oxygen sensor faulty, Replaced.

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Audi A4 in California, United States May 2016 - Oct 2016
Oct 2016 77000 mi US $500	Electric convertible top stopped working.mechanic friend is attempting to diagnose the problem

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Audi A4 in Alabama, United States Feb 2009 - Mar 2010
Mar 2009 49000 mi US $1700	Check engine light on. Car 'spluttering' at idle. New Cam Shaft seals identified as problem area.

Audi A4 in Florida, United States Aug 2013 - Sep 2013
Aug 2013 45000 mi US $2200	Replaced ecm

Audi A4 in Nebraska, United States Apr 2010 - Mar 2012
May 2010 44000 mi US $14500	Replace the coil packs, oil change, and replace 4 tires.

Audi A4 in California, United States May 2015 - Jun 2018
Jun 2015 68000 mi US $23	Sensor detected:Convertible top not secured despite top being closed. This fault caused air conditioner to turn off. Not fun when air temp over 100 degrees.
Nov 2016 81900 mi US $600	Passenger window switch needed replacement. Rear window regulator was replaced as window refused to close at halfway point.
Mar 2017 84000 mi US $140	Window washer unit inop and not holding washer fluid. Cause was wiring short.
Mar 2018 91000 mi	Passenger Seatbelt locks up too soon.

Audi A4 in Arkansas, United States - Feb 2009
Feb 2009 83300 mi US $202	Coil #2 replaced

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Audi A4 in Nebraska, United States Sep 2006 - Jun 2011
May 2007 69000 mi US $70	Driver side front indicator bulb housing got burnt out, possibly due to a bad grounding issue. Audi dealer in Omaha NE on the first visit replaced bulb and on the second visit 'supposedly' replaced turn signal indicator stalk. An independent mechanic fixe
Jun 2007 70000 mi US $180	Wipers siezed. Mechanic had to open up the linkages and grease them. Charged me labor at 90$ for 2 hours.
Sep 2008 86000 mi US $450	Wiper linkage replaced.
Sep 2010 114000 mi US $900	ABS control module failed. Brake Light flashing in the dashboard.

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Audi A4 in Virginia, United States Nov 2008 - Apr 2010
Aug 2008 90000 mi US $800	PRNDS all light up while in tip tronic...Audi thought transmission could be failing. Replaced shifter tract. Security System beeping three times upon startup and would die if left still for 2 or 3 days. Finally found bad cell in battery. Fixed the issue.
Oct 2008 93000 mi US $30	Extreme vibration after having tires installed balanced again and again. Issue still present.
Nov 2008 94500 mi US $368	CV half shaft installed...purchase part myself (Audi charges 800 just for the part) and had a mechanic install it.
Dec 2008 96000 mi US $1500	Vibration continues...thought to be a CV axle. Replaced did not fix. Took in to dealer for vibration. Was told a bad tire was at fault or was out of round. Parasitic draw on battery. 8 hrs diagnositic time. Replaced door wiring harness and door latch. VERY EXPENSIVE repair.
Jan 2009 97000 mi US $120	Owner noticed fluid leaking from underneath car. Thought to be CV axle leaking from previous install. Steering was leaking from rack and pinion. Decided to wait until summer.
Mar 2009 98000 mi US $240	Traction control light came on and dealer identified as brake light sensor being bad. Cruise control would work on and off. Brake light sensor replaced and originally installed incorrectly faulting the brake pressure sensor. Dealer fixed both issues
Apr 2009 100000 mi US $500	Upon last trip to Audi told me I had oil leaking from the valve cover gasket. recommended also to change the cam seals. They wanted 700 to replace at dealer. Took elsewhere had motor mounts also changed and valve cover for 500.00
Aug 2009 102000 mi US $200	check engine light illuminated. Took to dealer and was told was vacuum leak( which explains rough idle i've had for a year). Repaired 4ft of hose and air jet. Repair did not fix rough idle. Am returning to shop next week.
Apr 2010 110000 mi	Rough idle still present. Audi wanted to replace everything vacuum related for rough idle and do a intake manifold cleaning...declined...then sold to my father

Audi A4 in Alberta, Canada May 2007 - May 2009
Jun 2007 55490 mi C $100	Check engine light flashing, ignition coil #4 replaced
Jul 2007 56420 mi C $500	Driver side door speaker connection intermittent, likely due to poor connection. Wires reconnected, connectors reset. problem resolved
Jan 2009 64480 mi C $450	Rear coolant had been leaking for some time and as a result, no heat was coming into the cabin. Coolant was also due for a flush. During repair, located 2-3 more gaskets on the engine which also needed replacing. Cheap parts but expensive labour.
Apr 2009 66960 mi	Small pin suddenly snapped out of the glove box, causing the glove box door to drop down immediately when opened. Found solution online easily. Reinserted the pin back into the dampener/hinge, fixed in less than 1 min.
May 2009 66960 mi	It probably needed some steering or cv joint work when I sold it. The car vibrated a lot when turning It was getting too expensive to keep. I'll never own a German car out of warranty again.

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Audi A4 in Great Britain Nov 2015 - Nov 2016
Sep 2016 103000 mi £70	there was a water leak at the back of the engine. It was a heater exchange unit that was faulty. a replacement was bought second hand off ebay for Â£25. the engine has to be slackened in it mounts and rocked forward for access.

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Audi A4 in Finland Apr 2009 - Dec 2010
Jun 2009 105400 mi €580	Water pump failure. These are made of plastic that is not bound to last. A very common problem with this engine.
Dec 2009 108500 mi €400	Passenger side front bearing started to make noises. Dealership's forensic report confirmed that it was worn out. A new one was installed, problem solved.
Jul 2010 110980 mi €500	Wheel bearings started to make some noise. Replaced it to avoid further problems and to get rid of the noise. Also some routine maintenance.
Dec 2010 111600 mi €900	Power steering fluid leak through the conrod sealing

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Audi A4 in California, United States Oct 2009 - Sep 2013
Nov 2009 70000 mi US $150	Oil leaking from engine found by the technician. Gasket replaced.
Dec 2009 70000 mi US $1600	oil leak from camshaft seal
Sep 2010 79000 mi US $1500	left and right Engine mount support leaks/replaced left and right inner CV boots broken, replaced both left/frong and right/frong axle assembly.
Oct 2012 96500 mi US $200	Vibration on the driver side axle, replaced axle.
Sep 2013 105000 mi US $900	Water Pump leak, replaced water pump leak.

Audi A4 in Massachusetts, United States Dec 2010 - Jan 2011
Jan 2011 107000 mi US $694	Many electrical functions were either not working, or operating erratically (alarm / interior lights / trunck lid / door locks, etc.) Mechanic replaced the "convenience module" on floor, which had failed (NOT due to exposure to water).

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Audi A4 in Washington, United States Dec 2011 - Apr 2012
Jan 2012 US $2000	Head gasket failure
Mar 2012 97000 mi US $1750	Rear main oil seal leak

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Audi A4 in Minnesota, United States Mar 2013 - Sep 2017
Feb 2015 184600 mi US $300	POS sensor was bad

Audi A4 in Massachusetts, United States May 2009 - Mar 2010
Jun 2009 99000 mi US $950	Replaced - breather hose, crankcase vent valve, valley pan gasket, etc. Oil change.

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Audi A4 in Wisconsin, United States Nov 2013 - Jun 2016
Mar 2014 131000 mi US $970	Wheel bearings were very loud
Jul 2015 161700 mi US $1600	Head gasket blew oil in coolant

Audi A4 in Minnesota, United States Nov 2009 - Dec 2011
Apr 2011 91500 mi US $60	Coil pack failure, created a very bad miss and could only be driven short distances. temp sensor, only affected gauge
Oct 2011 98000 mi US $30	Replaced leaking rear coolant flange
Dec 2011 98000 mi	pcv return hose needed replacing when sold

Audi A4 in British Columbia, Canada Jul 2008 - Mar 2009
Nov 2008 60140 mi C $70	License plate bulb, but screw was locked/stripped/stuck, owner unable to replace.

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Audi A4 in Utah, United States Aug 2017 - Sep 2018
Nov 2017 154000 mi US $50	Replaced o2 sensor

Audi A4 in Maryland, United States Nov 2008 - Mar 2010
Dec 2008 85000 mi US $400	Rear coolant flange cracked.

Audi A4 in Alberta, Canada Oct 2014 - Dec 2014
Nov 2014 92480 mi C $950	Replaced Head for valve issue.

Audi A4 in Alaska, United States Dec 2007 - Jun 2022
Mar 2010 37000 mi	Car would not start. Would not turn over. Repair shop could not duplicate problem.
Jul 2015 72000 mi US $400	Running poorly and making noises. Timing belt was about to go and was repllaced before any damage was done. Also, regular maintenance was done.

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Audi A4 in California, United States Mar 2012 - May 2014
Nov 2012 129400 mi US $250	Located, purchased and replaced both rear tail light housings due to leakage.
Nov 2013 139000 mi US $175	Backup lights always on. Switch located on transmission (?) failed and had to be replaced.
Jan 2014 133000 mi US $575	Serpentine belt and tensioner pulley
Mar 2014 143000 mi US $250	Coolant overflow tank often low. Tests cannot find any leaks.
May 2014 143000 mi	Never went further to fix coolant leak, probably a sensor/seal. Same with oil leaking around I believe was spark plug seals? Lots of other things I never fixed for several years. e.g. leaking sunroof bad pump for windshield wiper fluid front end work electric window intermittent working and other electricals, etc. Had to stop throwing $ down a deep dark hole. Fuel pump died, traded car.

Audi A4 in California, United States Jan 2010 - Jun 2011
Feb 2010 100000 mi US $2000	Left front axle replaced - boot torn.
May 2010 101900 mi US $695	replaced radiator due to leak replaced radiator due to leak
Sep 2010 105000 mi	check engine light - code indicated cat converter/sensors but no obviously problem found. Reset.
Dec 2010 108000 mi US $100	leak in headliner from sunroof-was "fixed" by dealer last year. Front drains are ok-back drains totally clogged-shop said they couldn't clear w air rec going back tp-dealer.Dealer said they will try a thin wire tool from Audi. No appt yet.

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Audi A4 in Virginia, United States Sep 2006 - Jan 2009
Feb 2007 71000 mi US $100	Catalytic converter tripped CEL. Mechanic did not road test after reset because of icy road conditions, but CEL has not come back on.
May 2008 89000 mi US $650	Inner CV boot. Front control arms.

Audi A4 in Utah, United States Jun 2010 - Jun 2012
Aug 2010 99200 mi US $1500	Torque Converter replacement
Jun 2012 US $1100	Odd noise. Turned out to be some belts that needed replacing.

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Audi A4 in Bulgaria Jan 2017 - Jun 2022
Apr 2017 204600 mi $200	Front bearings
May 2018 217000 mi $180	Sensor for level of oil
Apr 2022 253580 mi $800	New suspension.

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Audi A4 in Ohio, United States Aug 2007 - Nov 2011
Oct 2008 61000 mi US $200	Leaking coolant after-run or auxiliary pump. Pump located in the "V" of engine beneath the intake manifold. Also required replacement of intake manifold gaskets as this is mandatory with R&R of intake manifold.
May 2009 67000 mi US $40	CEL came on - system too lean & audible vacuum leak. Crack/leak in 4-way vac connector & non-return valve 078 611 933B. Temporary fix using RTV silicone made. Purchased part and replaced w/some vac lines. Car fully repaired in 4 hrs total repair time.
Dec 2009 73000 mi US $40	Non-return valve in emissions system cracked causing a vacuum leak and a lean condition which triggered the CEL. Installed new valve (part is a dealer only item).
May 2010 78000 mi US $40	Coolant Temperature sensor failed - initially erratic and then total failure of temperature gauge response. Replaced sensor with improved design (VW/Audi part) and gauge now works properly. This sensor outputs to both dash gauge and ECU.
Feb 2011 84000 mi US $415	Right (passenger) rear wheel bearing was bad and was replaced. Problem evident from noise and vibration. Oil leak coming from recess on front of engine where crank lock pin is inserted during TB change. Plug and o-ring replaced. May not be only oil leak, but it was a major one.
Sep 2011 90000 mi US $2400	Water pump bearing failed; noise indicated problem was possibly severe so car towed to prevent more damage. Timing belt,water pump, tensioners and idlers/rollers were all replaced. This was only 20k miles since same service was last done.

Audi A4 in Connecticut, United States Mar 2013 - Jun 2013
May 2013 52600 mi	Timing belt plus water pump, upgraded diverter valve, replaced gaskets (leaking minimally).

Audi A4 in Georgia, United States Feb 2011 - Apr 2011
Mar 2011 115000 mi US $700	Both front axles rebuilt due to leaking CV boots. I chose to rebuild instead of replacing with aftermarket. All joints/boots rebuilt or replaced.

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Audi A4 in Illinois, United States Dec 2008 - Mar 2019
Dec 2011 108000 mi US $850	Oil cooler was leaking into cooling system.
Sep 2013 125000 mi US $1500	Alternator went bad. Had alternator replaced. Very labor intensive. Wheel bearing was failing. Replaced wheel bearing. Was getting very noisy.
Nov 2013 127000 mi US $1503	Heater Core went bad. Needed to be replaced. Very labor intensive.
Mar 2014 131000 mi US $500	Left Rear wheel bearing what bad. Had to replace.
Aug 2014 137000 mi US $715	I ordered the auxiliary cooling fan online and did that myself. (I now know how to put the S4 into 'service position' sheesh, so much work just to be able to get at the fan. The fan was $150. (Audi wanted $700 installed). I also ordered a used Throttle Body online for $250 and installed that. It was throwing a fault code and I have to make it qualified to pass for the bi-annual emissions test that is due. (Can you believe Audi wanted $1100 for the Throttle Body-part only.) New spark plugs. Oxygen sensor.
Sep 2014 139000 mi US $450	Engine coolant temp sensor failure was causing ECM to think that even when engine was cold, it was at operating temp. This made vehicle very difficult to start and keep running, since it was not receiving an enriched air-fuel mix.
Oct 2014 139500 mi US $310	Twice had it towed on flat bed to Audi. The brakes started applying themselves, to the point of near lock up. They could not reproduce it so eventually felt to start with replacing front brake lines. Unsuccessful.
Nov 2014 141000 mi US $700	Audi stripped Both front bleeder valves in calipers. Bought after market for $120 each instead of Audi's $840. (dual piston). Merlin's correctly diagnosed master cylinder. Good job. Also replaced FR axle.
Mar 2015 146000 mi US $402	No heat. Had to have heater core flushed.
Mar 2016 161000 mi US $215	I always replace my own brake pads and rotors but on the rear it needed the calipers replaced. Pistons were froze.
Dec 2016 165000 mi	Fuel pump went bad. Remove and replace.
Jan 2018 172000 mi US $300	LR caliper froze up, also LR brake house callapsed.

Audi A4 in New York, United States Feb 2010 - Dec 2012
Mar 2010 112000 mi US $500	o2 sensor went bad. Replaced all 3 to avoid going back at later time.

Audi A4 in Vermont, United States Feb 2010 - Jun 2011
Mar 2010 146000 mi US $140	Wheel bearing wore out at 146k, don't think I can complain.

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Audi A4 in Florida, United States Jan 2005 - Mar 2010
May 2005 51000 mi US $200	horn replaced.
Sep 2006 58000 mi US $40	coil pack replaced
Apr 2007 69000 mi US $250	both rear passenger window regulators replaced.
Jun 2007 74250 mi US $40	coil pack replaced

Audi A4 in Tennessee, United States Sep 2006 - Aug 2009
Nov 2006 34000 mi	Faulty front turn signal.
Feb 2007 41000 mi US $800	Leaky gasket caused oil to collect around spark plugs and coil packs. Problem with driver's lumbar support caused clicking noises and back panel of seat to pop out at bottom.
Mar 2007 50000 mi US $50	Thermostat went bad.
Oct 2007 55000 mi US $55	thermostat
Jan 2008 55000 mi US $55	Power steering leaking.

Audi A4 in Nebraska, United States - May 2007
May 2007 74000 mi US $500	Alarm speaker not working. Lights are working. Not Fixed.

Audi A4 in Michigan, United States Mar 2010 - May 2017
May 2010 96800 mi US $440	CEL required a vacuum line replaced. Replaced plastic coolant flange on back of head. Did work myself. Removed windshield wiper linkage - disassemble, clean and lube main posts and housing. It was frozen solid!
Sep 2010 101000 mi US $130	Right rear window regulator replaced. 100,000 mile oil change.
Nov 2011 117000 mi US $60	slight miss at low revs and low loads only. Thought it was bad fuel, but replaced plugs, air filter, one coil pack, Techron and alcohol to absorb moisture. Went away for a while, now is back when I filled up the tank with Shell Premium
Jun 2012 122000 mi	Wipers frozen - linkage needed to again be removed and disassembled/lubricated. Mainly the driver side pivot point bushings.
Dec 2012 129000 mi US $140	Replaced rear shock absorbers. Changed to winter tires.
Oct 2013 137000 mi	Wiper linkage corroded - removed linkage transmission and disassemble,lube and re-install.
Dec 2013 139000 mi	Replace faulty coil pack and spark plugs fouled by the coil pack
Dec 2014 153000 mi US $700	Replace leaking radiator. Replace rear water flange on back of head (insurance measure). Replace heater core for lack of heat. Replace Turbo. Noticed oil in intercooler ducting. Also, the waste gate nut was gone, causing low boost with an open waste gate. Replace timing belt service. Water pump as precaution. Replace complete PCV system due to deteriorated hoses
Jan 2015 US $400	Replace broken fuel pump.
Jun 2015 160000 mi	Had to disassemble and re-lube a corroded and stuck windshield wiper linkage/transmission assembly. Seems like a yearly maintenance item.
Sep 2016 167000 mi US $95	Replace LF wheel bearing. Corroded in place required additional effort. Replace Battery
Nov 2016 167600 mi US $7	Replaced LR window regulator plastic part.
Mar 2017 169000 mi US $120	Replaced exhaust flex pipe.

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Audi A4 in New York, United States - Apr 2007
Apr 2007 50000 mi US $1000	Leaking gasket seal caused a buring oil smell. Gasket was replaced.

Audi A4 in British Columbia, Canada Nov 2009 - Sep 2011
Dec 2009 74400 mi C $130	Coilpack on cylinder #1 failed. Normal driving, engine near idle but starting to accelerate. Engine was warm and operating normally. No warning. CEL flashed fast, vehicle lost a lot of power and started shaking. Towed to dealer, diagnosed, replaced.
Jun 2010 81220 mi C $100	Valve cover & Camshaft Adjuster seal leaks. Both seals replaced. ABS Control Module. Part ordered by warranty was used and ended up being defective. Second part on order. ABS, ESP and Brake lights all flash due to a communication problem with the module. Car still runs fine but it's annoying. Warranty refuses to buy new part. Keeps installing used parts. 3rd used module has been installed but the problem still exists. Faulty module means no ABS or traction control while driving. Problem ongoing for over a month.
Sep 2010 81840 mi	ABS control module replaced with new oem part. System recoded.
Sep 2011 89280 mi	Steering rack was patched because it was leaking. Required multiple visits in August and September.

Audi A4 in Washington, United States Sep 2008 - Apr 2009
Jul 2008 45500 mi US $40	Valve cover gasket replacement. Oil leaking from numerous spots due to bad gasket. Part purchased from Audi Dealer.
Aug 2008 46000 mi US $350	Had to replace a broken water pump. Changed the timing belt and thermostat while I was in there. Did all work myself and paid ~350 for a kit online.
Jan 2009 50000 mi	Leaking coolant, tightened coolant bleeder screw.
Mar 2009 50000 mi US $50	Coilpack went bad.

Audi A4 in California, United States Dec 2006 - Sep 2012
Apr 2007 97000 mi US $1800	rear left window regulator engine mounts replaced water pump causing coolant leak.. replaced waterpump and re-did timing belt service
Mar 2008 113000 mi US $200	Catalytic converter replaced.
Mar 2011 136000 mi US $800	Power steering pump replaced. It had been whining a bit and a fluid flush didn't help.
Feb 2012 145300 mi US $650	Leak at turbo ac took a while to kick in

Audi A4 in New Jersey, United States Dec 2006 - Mar 2010
Jun 2007 39000 mi US $50	brake booster vacuum pump mechanical failure passenger front door electical failure (window,mirror,ilumination,lock not operational) computer replaced

Audi A4 in Wisconsin, United States Apr 2007 - Mar 2010
Mar 2008 73000 mi US $50	Leaking valve cover on engine.

Audi A4 in Georgia, United States Apr 2007 - Jun 2011
Sep 2009 78000 mi US $330	Oxygen sensor failed

Audi A4 in Illinois, United States May 2009 - Jan 2011
Mar 2010 87000 mi US $725	Radiator had pinhole leak Right Rear Brake Light Flushed and bled brake fluid
Jun 2010 88000 mi	Turn signal bulb.

Audi A4 in Georgia, United States Dec 2014 - May 2017
Jun 2015 72000 mi US $20	Both high and low tones horns went out
Jul 2015 73000 mi US $40	Changed horn, but relay broke
Sep 2016 78000 mi US $45	Changed inner CV boots and refill CV grease

Audi A4 in North Carolina, United States Jul 2009 - Jul 2013
Jul 2011 152000 mi US $850	2 window regulators
Jul 2013 163000 mi	Timing belt and head gasket

Audi A4 in Virginia, United States May 2008 - Sep 2016
Jun 2008 65000 mi US $250	Rack & pinion was binding. Replaced with refurbished unit. Driver side power window relay.
Feb 2011 92100 mi US $200	leaking valve cover gasket shorted an ignition coil
Aug 2011 95000 mi US $300	Leaking vacuum hoses-repaired hoses
Oct 2011 98000 mi US $280	vacuum leak
Jun 2016 143000 mi US $80	Check engine light. Code 17544. Vacuum leak - replaced hose.

Audi A4 in Texas, United States May 2006 - Mar 2010
Jun 2006 56000 mi US $100	new DV, old one's diaphragm worn out and was losing power.
Jan 2007 74000 mi US $1000	new turbo, diy in the front yard, replaced with a k04.

Audi A4 in Rhode Island, United States Jun 2015 - Mar 2016
Dec 2015 335000 mi US $150	Coolant flange was leaking.

Audi A4 in Pennsylvania, United States Nov 2010 - Jun 2022
Jan 2011 95800 mi US $250	There was a no-start condition which the shop determined was caused by a fuel pump. Pump and filter were replaced. 2nd trip this week. The shop misdiagnosed or missed an additional problem - the crankshaft position sensor. New sensor required. No further problems after this.
Dec 2011 97000 mi US $300	Thermostat was stuck open after a coolant flush. Replaced the thermostat
May 2012 103700 mi US $5	Headlight electrical connector was broken. I used some electrical tape to secure the connector in place. seems to be working for now. Wiring for the door harness has severed, losing window and wireless lock capability. Driver's side wiring harness had frayed and was no longer controlling the windows. The part was replaced. Headlight connector was broken and had to be replaced
Sep 2012 107000 mi US $10	The coin tray broke and was no longer functioning. replaced with a new one.
Nov 2012 107900 mi US $70	Tailshaft seal was leaking - common problem in these cars. Replaced the seal and re-filled the center differential.
May 2013 110600 mi	Torn CV boot for over a year - required change of axle.
Oct 2013 113000 mi	CEL illuminated for over 2 months - the MAF sensor requires cleaning.
Nov 2013 113200 mi US $20	Window regulator plastic housing had to be replaced
Dec 2013 113000 mi	Loss of coolant led to low-coolant light warning. Re-filled with 2qts, as the reservoir was empty. Last coolant fill was 2 yrs ago so a slow leak or evaporation
Jan 2014 113700 mi US $60	MAF sensor was replaced to potentially fix the CEL.
Apr 2014 114700 mi US $210	Exhaust pipe was correded and rusted at the flex pipe causing bad fuel efficiency and a lot of noise. new flex was cut and welded in
Jul 2014 118200 mi US $10	replaced a vacuum line and a pcv check-valve valve cover gasket and half-moon seals were replaced. unable to replace half-moon seals and i may have done a crappy job on the VCG Plastic guide for window regulator broke, requiring replacement
Dec 2014 120000 mi US $65	Battery was drained so recharged it. it drained again within 3 days. replaced battery under warranty. unsure yet if this fix worked of if there is a parasitic drain somewhere in the system
May 2015 122000 mi US $15	Windshield wiper linkage seized and stopped working Driver door has stopped locking with the wireless remote. Can lock manually only.
Sep 2015 124000 mi US $45	Windshield washer jets are not working. Door lock on left driver still not working remotely. Door actuator was not the issue. will attempt a replacement of door harness again
Dec 2015 128000 mi	Right outer CV boot was torn for about 18 months, CV joint was failing. Replaced with re-manufactured axle water getting into the interior from the rear after heavy rains. put some gutter seal into the suspected area, but did not stop the leak.
Mar 2016 130000 mi	fuel pump and filter have been having issues. no start condition on 3/4/2016. this was preceded by noise coming from the pump. pump is to be replaced Fuel Pump and filter replaced. Fuel pump gasket was ordered but not installed as it was not neccessary Door not locking - wires severed in harness. parts ordered
May 2016 133000 mi US $50	finally put in and spliced new wires. the remote lock works now! fuel gasket replaced as fuel was dripping from the tank
Jun 2016 133000 mi US $15	Trunk lock actuator failed - needed replacement VCG + Half moon seals were leaking and were replaced... successfully this time!
Aug 2016 134000 mi US $50	Attempting to repair motor mounts i introduced a crack into cooling system. still not sure where the leak is coming from. Motor Mount replacements
Sep 2016 134000 mi US $50	i believe the crack i heard during the motor mount install was from a PCV system component. replaced the entire set with silicone breather tubes i had purchased previously. replaced the coolant flange, hoses attached and the CTS. however continued leaking.
Oct 2016 134300 mi US $50	finally finished previous repairs including the timing belt, water pump Spark Plug replacement in an attempt to address rough idle on startup
Mar 2017 137500 mi US $50	Thermostat was leaking around housing. Temperature of car was not reaching optimal quickly enough. Replaced cat with HFC and replaced downpipes + mufflers as they had developed leaks.
Jun 2017 140000 mi US $110	Leaking rear struts had turned the car from sporty sedan into bumpy boat. replaced with OE quality replacements Updated parts in the PCV system
Nov 2017 142500 mi US $10	Rear Passenger window regulator piece broke (again) - replaced
Jan 2018 143000 mi US $80	rear o2 sensor was showing as dead - spliced in a new one.
Apr 2018 144000 mi US $30	Dashboard gauge for engine temp does not display correctly - Replaced coolant sensors to see if that was the issue.. did not fix. Likely need to refurb the dash.
Jul 2021 155000 mi US $40	Power Steering fluid was low

Audi A4 in Connecticut, United States Feb 2013 - Apr 2013
Mar 2013 70000 mi US $640	Check engine code P1296. Replaced coolant temp sensor near firewall. Thermostat replaced.

Audi A4 in Louisiana, United States Oct 2014 - Apr 2016
Oct 2015 126000 mi US $10	Antenna booster for radio and remote. Used binder clips and ruler to squeeze it back together. Radio works, but remote range is still extremely short.
Apr 2016 130000 mi	Antenna booster not fixed.

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Audi A4 in Australian Capital Territory, Australia Jun 2013 - Jun 2016
Mar 2015 135160 mi	Rocker cover gasket. Cause was difficult to determine, either failure of the gasket or incorrect installation.
Dec 2015 148800 mi A $500	replaced front suspension upper control arms

Audi A4 in Massachusetts, United States May 2017 - Oct 2017
Jun 2017 175000 mi US $300	Radiator hoses, thermostat, and sensor replaced
Sep 2017 175500 mi US $425	Upper control arm , front driver side of vehicle

Audi A4 in North Carolina, United States Oct 2016 - Jun 2022
Jun 2017 259000 mi US $60	Engine temp gauge indicated running cooler than normal. I ordered the thermostat parts from an online supplier and installed them on a weekend.

Audi A4 in South Carolina, United States Nov 2003 - Apr 2016
Apr 2003 19600 mi	All ignition coils.
Jan 2006 41000 mi	WIndow motor and regulator.
Feb 2008 53000 mi US $106	Engine coolant sensor. Engine coolant sensor + Vacuum hose.
Jun 2009 66000 mi US $8	Blinker light bulb.
Feb 2010 72000 mi US $150	Windshield water pump
Jun 2010 75000 mi US $150	Thermostat.
Jan 2011 81000 mi US $225	Coolant flange leak.
Jun 2011 84000 mi US $220	Valve cover gasket was replaced.
Jun 2013 101000 mi US $70	Brake light switch failed.
Oct 2013 105300 mi US $290	Headlight switch needed replacing.
Oct 2014 114300 mi US $150	Bad wheel bearing.
Mar 2015 118000 mi US $130	Window regulator.

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Audi A4 in Michigan, United States Apr 2012 - Apr 2013
Apr 2013 172000 mi US $550	E-brake cable bound, preventing release of brakes

Audi A4 in Massachusetts, United States Mar 2003 - Mar 2010
Nov 2003 25000 mi	Replace defective Radio/CD changer (warranty)
Mar 2004 31000 mi	Replace Headight Washer Pumps (warranty)
Apr 2004 32000 mi	Replace Windshield Wiper Motor (warranty)
Jun 2005 60000 mi US $385	Replace defective A/C Condenser (50% warranty)
Jun 2006 80000 mi US $152	Replace Broken Vacuum Line
Nov 2006 90000 mi US $300	Replace Coolant Temp Sensor, Replace Driver Side Wiper Arm
Jan 2007 93000 mi US $1890	Replace Power Steering Rack

Audi A4 in Georgia, United States May 2007 - Jun 2022
Jul 2008 101000 mi US $150	Coil pack failure on cylinder #1. Replaced all 4 coil packs due to the large difference in the revision of the part. Had version L replaced with version R
Dec 2008 106000 mi US $100	Small leak in Evap system. The gas tank has a crack or defect on the top of the tank. Purchased a used tank. Awaiting time to install.
Oct 2009 121000 mi US $900	Gas tank had a failure point. causing evap system error. New tank corrected problem.
Feb 2010 125000 mi	P0420 catalytic efficiency. Purchased new front O2n sensor. Awaiting install.
Apr 2010 127000 mi US $88	Replaced front O2 sensor
Jun 2013 130000 mi US $430	Replaced the engine speed sensor.....after 3 years it was hard to start the car without it :)
Aug 2013 131200 mi US $130	2 coil packs failed. Replaced all 4 due to new revision of part.
Dec 2013 137000 mi US $400	Motor mount failed. Liquid inside mount oozed out. Both motor mounts replaced with solid rubber design.
Mar 2014 141000 mi US $20	Cat inefficient error - clogged Cat. Replaced cat. Dipstick funnel failed.
May 2014 143000 mi US $100	Replacement of suction pump, bleeder valve and pressure control valve.
Aug 2014 144000 mi US $100	Rear O2 sensor replaced. Code for faulty heating element
Feb 2015 150000 mi US $800	Oil pan seal was leaking Rear differential axle seal
Sep 2015 155000 mi US $145	Car would randomly not start after leaving parked in the garage overnight. Aftermarket battery was not the correct battery for the car.
May 2017 157000 mi US $2000	Original clutch shattered. With 156k miles on it, it was on borrowed time. Replaced with aftermarket clutch.
Oct 2017 157200 mi US $2200	Syncro failed for 4th gear. Could not shift normally into 4th gear.

Audi A4 in California, United States Nov 2011 - Jul 2015
Jan 2012 135000 mi US $400	Vacuum hose connections leaky causing failed emissions testing. One hose broken. Replaced all connectors with screw-type.

Audi A4 in Connecticut, United States Jun 2002 - Jul 2010
May 2002 4300 mi	Ignition coil failed, car in the shop for 2 weeks due to out of stock on ignition coiils.
Mar 2008 125000 mi US $325	Ignition coil failed. New set needed.
Jul 2009 135000 mi US $7200	Intake valve head broke. Damaged cylinder 1,2 and 4 beyond repair. New block and head needed. Replaced clutch during vist since engine was being replaced and access was easy.
Jul 2010 125000 mi US $8500	Intake valve head broke and debris damaged cylinders 1,2 and 3 beyond repair due to migration through the intake manifold since the head on the valve was broken and open during power stroke. Estimated $8500 to repair, so junked.

Audi A4 in Michigan, United States Sep 2012 - Mar 2014
Apr 2012 139000 mi	Replaced the wires leading to the coils. The insulation was cracked and they were shorting out on each other. I bought the car this way. I replaced the plugs and coils, too. Scanned and found an evap code. Not the gas cap, not hurting anything other than maybe the environment...barely so i am leaving it? I bought it this way.
Nov 2012 143000 mi US $300	No cruise control. Replaced clutch switch Check engine light on. Code for large leak evap. Replaced purge valve and a hose leading through the firewall. Check engine light on. Code for bad cat. Assumed to be from previous owner driving so long with 2 cylinders misfiring. I bought it misfiring and fixed the wiress leading to coils. Cat is bad but runs fine. Have to live with this code.
Mar 2013 148000 mi US $280	Oil leaking onto the exhaust and burning off causing a bad odor. Replaced valve cover gasket and cam chain tensioner seal.
Nov 2013 150600 mi US $275	Clunk in RF. They replaced a ball joint...I guess there are a couple on each side, but we just did the bad one because the others were done by the previous owner. Bad vibration at idle and the intake system sounds different. not quite as peppy, I found vacuum leaks and replaced the diverter valve and PCV valve. Better but still vibrates. Shop checked all systems...perhaps the flywheel but not sure
Dec 2013 152000 mi US $199	Flex pipe broke off. Had a cheap one welded in
Mar 2014 152000 mi	Clutch went out (was causing the vibrations previously mentioned). The main bearing in tranny is bad and causing the clutch to bind - would not go into gear while running. Sold the car as a project to an Audi guy.

Audi A4 in Ontario, Canada May 2014 - May 2014
May 2014 77500 mi C $200	Misfire when cold, replaced MAF, coolant temperature sensor on recommendation from my mechanic

Audi A4 in New Mexico, United States Sep 2006 - Mar 2010
Feb 2009 58000 mi US $90	Noticed noise in transmission. Owner's manual no help, ordered repair manual from online vendor. Transmission fluid was low. Got fluid from online dealer. Filled fluid reservoir, noise disappeared. Drove awaiting manual arrival, then not til fluid came.

Audi A4 in Connecticut, United States Sep 2006 - Feb 2012
Apr 2007 74000 mi US $78	Windshield washer pump motor siezed. Blew associated fuse. I bought new washer pump, installed myself. Headlight bulb, changed myself. Took one hour, shop could probably do it in 30 minutes.
Jul 2007 77000 mi US $2	Check engine light came on. I pulled the code, running lean, cylinder bank 1. Found vacuum hose broken causing leak. Replaced vacuum hose. Cleared code.
Oct 2008 89000 mi US $50	Speedometer stopped working. Check engine light came on. Replaced vehicle speed sensor.
Nov 2008 89000 mi US $1700	Steering was vague, car wandered, especially over bumps. Replaces all front control arms, tie rod ends, front struts and rear shocks.
Dec 2008 90000 mi US $1100	Exhaust pipe cracked between resonator and muffler. Pipe needed to be replaced, as the area of crack was too thin to weld. Replaced entire exhaust system instead.
Jan 2009 91000 mi US $100	Engine misfiring. One coil pack died. Elected to replace all 4, as the coil packs are a known issue, and they were only $25 each.
Jul 2009 94000 mi US $45	Check engine light came on, pulled code, consulted manual and replaced Engine Coolant Temperature Sensor.
Mar 2010 99000 mi US $400	Parking brake cable seized. Replaced both cables. Rear brake pads and rotors replaced from dragging brakes. Replaces front brake rotors and pads due to rust on defective aftermarket rotor.
Jul 2010 102000 mi	Car started misfiring. Intermittant issue over about 100 miles. Finally the coil pack died and set a code. I replaced 3 coil packs with OEM replacements. Had to order the 4th. Aftermarket coil pack lasted 12,000 miles, so I will replace all A/C blew cold at idle, but not at highway speed. Found vacuum leak, large 3 way hose split. Will replace next time I am near dealer, but fixed for now with duct tape.
Jun 2011 112000 mi US $1	Vacuum leak found, fixed with tape but need to replace more rubber hoses. Vacuum leak causes A/C to work poorly, fools computer to think engine is under hard load.

Audi A4 in Ontario, Canada May 2009 - Aug 2015
Jun 2009 123380 mi C $50	Coolant leak on heater hose flange on back of engine block. Replaced plastic flange and o ring.
Jul 2009 124000 mi C $800	All front control arms replaced, (uppers very loose) license plate lights and lens replaced due to corrosion
Sep 2009 127100 mi C $300	ac compressor failure
Apr 2010 136400 mi C $100	one rear coil spring broke, replaced pair with used springs
Jun 2010 138260 mi C $50	coolant plug leaking on engine
Jan 2011 150660 mi	auto leveling headlights error code and drivers door interior light switch
Mar 2011 153760 mi C $35	Vacuum hose split. replaced with new hose.
Aug 2015 163060 mi C $80	Bad engine crank position sensor

Audi A4 in Pennsylvania, United States Feb 2006 - Jun 2011
Jul 2006 62000 mi US $50	COIL PACK FAILURE. CAR FLATBEDDED TO DEALER
Jan 2007 70000 mi US $50	ANOTHER COIL PACK FAILURE
Mar 2010 77000 mi US $2000	car stalled while merging on the highway. would not restart. coasted to shoulder. flatbedded to service. car sold upon completion of repair. Car was fun to drive but not dependable.

Audi A4 in Colorado, United States Oct 2009 - Jun 2012
Jan 2009 85000 mi US $1200	Leak in power steering. EStimate is about $1200 to replace rack. So far, I have just topped off the fluid. Haven't had to add more in about 6 months.
Nov 2009 93000 mi US $400	Driver window mechanism broken. Had to be replaced. Driver window mechanism repair
Dec 2009 95000 mi	Check engine light code indicated a problem with the thermostat or sending unit. Code reset and will see if problem re-occurs.
Feb 2010 96000 mi	Check engine comes on. Code indicates a problem with either the thermostat or sending unit. Light goes off on its own after a week or so. Shop couldn't pin down exact cause. Headlight bulb replaced. windshield washer fluid leak near front of car. Shop couldn't pinpoint location. Tubes looked good. Could be headlight washer pumps which are too expensive to repair.
Aug 2010 105300 mi	Sunroof opens fine, but sometimes stops on closing. I have to open all the way and re-close. Shop thinks problem is in the switch, a $330 part.
Oct 2010 106000 mi US $210	Engine temp sensor failed. Car difficult to start when engine was cold because sensor was telling computer that the engine was at 80 degress instead of 40 or so.
Sep 2011 111000 mi US $850	Car would lose power. Could only go about 15 MPH. I replaced the throttle body. The problem took a couple days to diagnoise.
Jun 2012 115000 mi	Never replaced faulty sunroof switch.

Audi A4 in Michigan, United States Nov 2010 - Jun 2018
Jan 2011 192000 mi US $6000	Emergency hand brake unusable/seized. Would normally stick in winter but became unusable recently. Hand brake cables were replaced during this trip and it works as expected now. Oxygen sensors and breather system replaced. Engine complains of running lean at times but problem is intermittent. Issue would show up when low in gas at higher cruise speeds, then go away after some time. Sheared off a tooth in 1st gear of manual transmission and damaged Syncro. Vehicle was drivable but transmission clicked in 1st gear. Replaced syncro, 1st gear, output shaft to resolve issue. Passenger side engine mount was leaking hydraulic fluid badly. Replaced both left & right engine mounts and also front snub mount.
Mar 2011 196000 mi	Power Steering started whining when turning at low speeds. Dealer checked power steering fluid level and refilled. PS tank was apparently empty. Instructed to monitor and if noise returns seek repair.
Jun 2011 197000 mi US $2500	Car was losing power steering fluid over course of a couple of months. Replaced power-steering rack. MAF Sensor replaced
Oct 2011 206000 mi US $3000	Flex Joint damaged and required repair. Updated rear sway bar and added new bearings for suspension. After-market rear shocks replaced under warranty.
Jul 2012 213200 mi US $785	A power-steering line difficult to replace was leaking or allowing air into the system. The system was making the whining noise while turning the wheel and a bubbling/spurting noise behind the steering whee. The line was replaced/fixed.
Apr 2013 218300 mi US $1100	A/C would stop blowing cool air after a period of time on high temperature days (90+). A/C was recharged.
May 2014 233000 mi US $357	Driver-Rear wheel was leaking brake fluid determined after visual inspection and brake light flashing. Caliper parts were rusted. Replaced caliper and securing bolts.
Jul 2015 243200 mi US $890	Power-steering very light at highway speeds. Whining noise with acceleration but not while turning. Intermittent difficult turning at low speeds. Fluid levels ok and no leaks. Determined to be power-steering pump.
May 2016 247700 mi US $4300	Engine head gasket and cylinder damage. Vehicle was losing coolant slowly with no visible leaks. Coolant leaking into damaged cylinder. Machine shop repaired damage & additional components replaced as part of repair.
Dec 2016 253000 mi	Breather hose cracked.

Audi A4 in Massachusetts, United States Sep 2011 - Jan 2013
Oct 2011 91755 mi US $90	Coil pack D failed causing misfire. Replaced Coil pack. Replaced one front headlight and both front blinkers. Blinkers failed due to burnt connections, fixed with an electrical sealant to keep out moisture. Replaced Hood Lift support. The old one was not holding the hood up. Replaced Hood Lift support. The old one was not holding the hood up. Replaced missing front lower valence/spoiler
Apr 2012 98700 mi US $30	engine speed sensor /engine crank position sensor failed, and was replaced
Jan 2013 110000 mi US $500	Car began blowing a lot of white smoke out of exhaust. Problem was either Head gasket or Oil Cooler. Both were replaced.

Audi A4 in North Carolina, United States Mar 2007 - Apr 2020
Jun 2007 85000 mi US $6000	Engine sludge caused lack of oil pressure which then caused a spun rod bearing which destroyed the internal engine parts.
Jan 2009 101000 mi US $100	The plastic piece holding the window to the window regulator broke, so the window would no longer go/stay in the up position. It did stay in place with duct tape on the outside in order to get the car home.
Oct 2009 107000 mi US $40	Failed ignition coil. AAA paid for the tow home (wasn't sure how to factor in that potential cost).
Jul 2010 120000 mi US $110	MAF sensor failed, bought new one and replaced myself
Aug 2010 120700 mi US $8	Found a couple of vacuum leaks in the turbo system.
Jun 2011 126000 mi US $300	Sensor in the system replaced, but problem is not fixed yet. Will return to shop in the near future.
Nov 2011 131000 mi US $40	A suction pump (vacuum switch) in the PCV system failed and required replacement.
Mar 2012 135000 mi US $2000	Power steering rack failed while driving. Had to be towed to the shop.
Aug 2012 145300 mi US $200	3rd recharge in 3 years. No leaks found this time around.
Jun 2013 150000 mi US $100	The coolant return fitting out of the turbo failed. Quick easy fix. Oil supply line to the turbo was leaking. In retrospect this might have just been a loose fitting, but I replaced the fitting and the line to be safe and avoid fixing something twice.
Dec 2013 156000 mi US $100	a mysterious coolant leak that was not able to be replicated. Maybe extreme cold weather related? Problem has not returned since.
Mar 2014 157000 mi US $500	Water pump leaking, probably the o-ring, replaced entire assembly and timing belt. Then 2 weeks later my thermostat housing exploded.
May 2014 160100 mi US $20	The car would intermittently not shift into gears for a few days. Bleed the slave and clutch which didn't appear to help, though the problem has not returned.
Sep 2014 168000 mi US $50	Failed coilpack. Diagnosed with personal pc and had a spare coil in my trunk.
Dec 2014 170000 mi US $200	another failed coilpack, so I just replaced all 4
Mar 2015 172000 mi	hood pull latch broke - just the lever, not the actual cable
Aug 2016 177000 mi	Had a slow AC leak for a few years, able to get by with recharges. Leak became faster and was found to be a defective AC compressor. Cost $1500 Crankshaft position sensor failed, but intermittently so the car was still driveable at low throttle. Replaced on my own.

Audi A4 in Texas, United States Feb 2007 - Mar 2018
Sep 2007 114000 mi US $55	crankshaft position sensor (aka vehicle speed sensor) intermittently not working on cold starts, requiring repeated cranks to start the car
Apr 2008 120000 mi US $40	Driver's side front outer CV boot cracked.
May 2008 121000 mi US $20	Rear coolant flange leaking, replaced with new flange and O-ring.
Apr 2009 133000 mi US $12	cam chain tensioner gasket leaking. gasket was removed and replaced.
Nov 2009 142000 mi US $80	inner CV boot ripped, axle replaced replaced driver's front CV axle due to torn boot
Mar 2010 149000 mi US $100	Water pump failure - impeller separated from shaft, resulting in lack of coolant circulation
Apr 2011 168000 mi US $68	hood release cable had stretched to the point it caused the release handle to break. Hood release cable and handle were both replaced
Mar 2012 182000 mi US $350	clutch disc worn, replaced
Jun 2012 185000 mi US $50	Cam position sensor started throwing codes occassionally, was replaced.
Dec 2012 192000 mi US $250	leak in radiator, replaced; thermostat sticking open, replaced
Mar 2013 195000 mi	replaced rear differential mount
May 2013 197000 mi US $500	head gasket leaking. Valve job done on head (seals replaced, etc), all gaskets etc replaced
Aug 2013 201900 mi US $250	replaced all rear suspension bushings
Dec 2013 209000 mi	thermostat sticking open
Jun 2014 215000 mi US $75	Oil level sensor began intermittently incorrectly reporting low oil level. Sensor was replaced.
Aug 2014 215000 mi	left axle seal on rear differential was leaking, replaced
Sep 2014 216000 mi US $45	low pressure AC line between condenser and dryer was leaking. Line was repaired with new rubber/crimps
Oct 2015 223200 mi US $1500	FOD (foreign object debris) ingested into engine, damaging head and piston #1. Possibly some slag broke off a weld inside the intercooler?
Mar 2017 235000 mi US $100	control arm ball joint was worn, replaced

Audi A4 in Minnesota, United States May 2010 - Sep 2010
Jul 2010 93000 mi US $132	Worn rear passenger strut mount causing rattling. Replaced rear strut mounts and fixed problem.
Sep 2010 93000 mi US $200	Bad combi-valve throwing a check engine light. Replaced valve and fixed problem.

Audi A4 in New Jersey, United States Feb 2007 - Aug 2011
Mar 2007 54000 mi US $800	Rear Left Axle seal and Rear Diff Yoke Seal. Both were leaking. Remove both and reinstall new seals with fresh diff fluid.
Mar 2009 60000 mi US $90	Replace leaky lower coolant hose.

Audi A4 in Pennsylvania, United States Dec 2006 - Mar 2010
May 2007 69000 mi US $50	rough idle due to the front O2 sensor.
Jun 2007 69000 mi US $367	intermitant rough idle. dealer replaced the MAF under warantee but the problem still exist. they cleaned the throttle at cost to me. replaced the skeleton for the lumbar in the driver's seat.
Aug 2007 73000 mi US $260	-O2 sensor once again. -spark plugs for some strange reason were red at the tips. -rough idle

Audi A4 in Massachusetts, United States Nov 2009 - Dec 2013
Apr 2009 88000 mi US $450	all 4 cyl coils replaced
May 2009 90000 mi US $400	rear window motor replaced
Jan 2010 86300 mi US $200	Oil dip stick/tube broken and replaced.
Sep 2010 99000 mi US $1100	Oil pump stopped working, engine was prone to overheat and cause irreparable damage soon. Replaced Oil Pump, oil pressure sender, and the like. Check engine light came on the night before I brought it to the mechanic, left car immediately.
Feb 2011 102000 mi US $90	Ignition coil misfire, 3rd coil replacements. Replaced myself in the driveway after ordering newest series of coils.
Oct 2013 120000 mi US $1800	radiator

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Audi A4 in Florida, United States Oct 2003 - Feb 2011
Oct 2003 20500 mi	coolant leak. Replaced valve
Dec 2004 40500 mi	replaced radio
Apr 2005 46631 mi	replaced catalytic converter
Jul 2005 49582 mi	speakers go in and out in volume. Installed felt strips in all 4 doors.
May 2007 78500 mi US $1050	Replaced faulty Combu Valve
Jun 2007 79000 mi	Replaced catalytic converter
Nov 2007 86500 mi US $50	Sunroof would randomly tilt open and close during driving. Dealership replaced a switch. Replaced sun roof switch
Dec 2007 88000 mi	Snub motor mount was bent and replaced during scheduled timing belt change at roughly 87500 miles.

Audi A4 in Florida, United States Jul 2010 - Feb 2016
Sep 2010 104000 mi US $300	Front Driver Axle cracked at joint. Grease spilled out of joint. Car vibrated while accelerating and made occasional squeaks at point of damage. Front axle was replaced and problem solved.
Feb 2011 105000 mi US $550	Overhead gasket seal was old and leaking. Caused engine to misfire.
Oct 2011 114000 mi US $450	Car running rough fan running a lot. Drove it with check engine light (CEL) for a month~ code was for a temp sensor. Next, car vibrated and CEL began to flash. towed to shop. replaced temp sensor, hoses, and one coil pack. Fixed
Feb 2016 164000 mi	Valve cover gaskets leaking. Second time. They were replaced in 2010.

Audi A4 in North Carolina, United States Jun 2007 - Oct 2013
Sep 2007 67000 mi US $230	Water pump failed. Engine ran hot and was shut off before permanent damage could occur. Car was towed to a local shop, but they were not equipped for the repair. They towed the car to the Dealership. Dealership replaced the water pump and timing belt. Check engine light was on for two weeks. Local auto parts store reset the light, it came back on after 3 days. While in the shop for problem 1, shop said they think problem 1 caused problem 2. They reset light but repaired nothing. Had to take car bac Check engine light on (as mentioned in problem 2 of trip 1). Light reset during trip 1. Light came on 3 days later. Went back, sensors bad, replaced sensors, problem solved. 2 weeks later light has not come back on. After getting car back from trip 1, washer fluid light came on. I refilled with 1 gal of fluid. Took back for trip 2, got it back, fluid low again. Shop says they filled it both times. Looked at it on 3rd trip, pump leaking, replaced, problem solved.
Nov 2009 106600 mi	Coil failed, car was undriveable. Towed to dealer, they notified me that a recall had just gone out on the coil and replaced it for free. Happy me :)
Jan 2011 112500 mi US $80	Thermostat completely failed in the open position. Car drove fine but would take 20+ minutes to warm up. Did not notice the problem until the weather got ready cold.
Nov 2011 142000 mi US $300	Engine stalled, would not maintain idle without foot on throttle. Multiple codes, 2 O2 sensors intermittently giving trouble for years could be causing them. 3 sensors replaced at my request (due to reduced labor cost of the 3rd sensor). Same problem a week later, engine stall. Shop said ETC sensor giving readings that "didn't make sense" and suggested it be replaced. I requested shop replace the ETC sensor and fuel filter (it was overdue anyway).
Dec 2011 143000 mi US $180	Same prob another week later, engine stall. Shop gave an OBDII recorder to get more info. MAF sensor throwing bad data, shop advised replace sensor and wiring. Engine ran smoother when it was disconnected. Sensor and wiring replaced. Same problem as before. Advised shop that no routine maintenance had been performed since about 80k miles, other than oil and tires. Shop checked regular maintenance items, found two bad spark plugs and 4 poor plugs. Replaced plugs.
Feb 2012 146400 mi	Stalling again, but this time could find nothing wrong and problem is gone again.
Oct 2012 158800 mi US $265	Power to trunk lid failed, lights and latch not working. Replaced latch switch and lights came on, but latch still not working. 6 days of diagnostics could not identify problem. Audi dealer refused to provide wiring diagram for trunk lid.
Oct 2013 179000 mi	MIL thrown for both cat banks. Did a $150 fuel system service and cleared codes. Ran fine for a few weeks, then codes came back. Power to trunk lid never entirely fixed.

Audi A4 in California, United States Nov 2008 - Feb 2009
Jan 2009 US $503	Power steering pump. Driver's door controls inoperable. Power windows inoperable in entire vehicle. Driver's door controls inoperable. Power windows inoperable in entire vehicle.

Audi A4 in California, United States Sep 2008 - Jul 2012
Jul 2012 137000 mi	internal coolant leak diagnosis in March, sold in July

Audi A4 in California, United States Nov 2009 - Dec 2013
Jul 2013 89500 mi US $4000	variable transmission was jerky at low speed and something slided out of gear altogether.
Dec 2013 92000 mi	Transmission never fixed.

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Audi A4 in Latvia Sep 2014 - Sep 2014
Sep 2014 164300 mi €50	Fuel nozzle rubbers was replaced.

Audi A4 in Virginia, United States Feb 2009 - Sep 2013
Mar 2009 75000 mi	Catalytic Converter replaced under emissions warranty.
Dec 2009 87000 mi US $550	Oil Leak from Right Valve Head Cover; replaced L&R Valve Head Covers. Replaced serpentine belt & tensioner.
Apr 2010 90000 mi US $175	Car would crank at start but not fully turnover; mechanic unable to Dx problem; however, works fine now.
Jun 2010 91000 mi	Replacement of coolant sensor; caused CEL and engine fan to power on during cold starts; also responsible for controlling fuel mixture entering the cylinders.
Mar 2013 128000 mi US $800	Replaced all 4 oxygen sensor; sensors had been running sub-standard performance for > 1 year. Replaced OEM sensors x 4 with after-market sensors. Issue diagnosed via owner's VAG-COM. Alternator failure. Replaced OEM alternator with after-market.

Audi A4 in British Columbia, Canada Apr 2009 - Jun 2022
May 2009 70680 mi C $409	Slightly leaking seal at rear drive shaft of transmission. Transmission oil replaced & seal conditioning additive added after shop felt that the seal replacement might cause additional problems. I have not yet been able to check if the seepage has stopped
Jun 2009 73160 mi C $600	Rear Transmission seal still leaking after May's repair by other shop. In shop for 2 days because all parts to repair not ordered.
Jul 2009 75640 mi	Returned from vacation to find that seal still leaking, but all required parts were not in stock. Will have to return to repair again.
Aug 2009 77500 mi	Dealer replaced seal again, under repair warranty. So far, so good.
Dec 2009 82460 mi	Engine started missing badly, then Check engine light started flashing. Diagnosed as failed ignition coil. Dealer replaced all 6 ignition coils per Audi Canada Voluntary Emissions Service Action 28F2/J1 Ignition Coil Inspection/Replacement.
Feb 2010 84180 mi	While the car was in to have the ignition coils replaced in Dec., the mechanic at the Dealership performed an overall inspection & discovered that the rear transmission seal was leaking, yet again. Repaired at no cost due to failure of prev. repair.

Audi A4 in California, United States Dec 2011 - Sep 2020
Jan 2012 US $500	replace control arms (all front)
Dec 2013 153000 mi US $1000	Water pump, timing belt, pulleys, tensioners, oil seals on pas. side cam adjuster, coolant O ring on temp sender, oil, oil filter, air filter, spark plugs, drive side motor mount (all replaced this year).
Aug 2014 162000 mi US $500	replaced shocks
Nov 2014 165000 mi US $70	coolant leak from connection between flange and hose going to heater core.
Dec 2015 180000 mi US $200	replace leaking vacuum hoses, PCV valve and fuel pressure regulator.
May 2017 195000 mi US $200	Replace radiator, oil change, replace snub mount. Replaced rear rotors and pads. Flushed brake fluid.
Jun 2017 196000 mi US $200	Replaced headliner

Audi A4 in Iowa, United States Jan 2015 - Nov 2015
Nov 2015 187000 mi	Engine light on for catalytic converter. Ran fine, though.

Audi A4 in New Jersey, United States Oct 2009 - Apr 2012
Mar 2010 195000 mi US $600	Emergency Brake cable repaired
Mar 2011 225000 mi US $550	Front driver side Ball bearing replaced.
Apr 2011 230000 mi US $550	Other front Ball Joint went

Audi A4 in Utah, United States Sep 2010 - Aug 2011
Nov 2010 75000 mi US $627	CEL was constantly illuminated but the drivability of the car was normal. Repair was done by mechanic free of charge due to previous error during a pre-purchase inspection. Cost of parts/labor was $1000+. Cause: secondary air injector. Passenger HID bulb was discolored which indicates approaching failure. Shop replaced it with a new bulb and raised the default setting for the auto-leveling bulb system for increased visibility.
Jul 2011 86000 mi US $220	I had a faulty oil level/temp sensor replaced.

Audi A4 in California, United States Sep 2007 - Sep 2012
Mar 2007 95000 mi US $1800	Replace timing belt Repair broken glove box
Sep 2009 123000 mi US $400	Replace rear shocks and shock mounts
Nov 2009 131000 mi US $580	Replace right front axle Replace rear brakes

Audi A4 in New Jersey, United States May 2014 - Aug 2015
Jun 2015 135000 mi US $150	Oil pressure light would come on intermittently. Replaced the sending unit and oil filter.
Aug 2015 135000 mi	Leaking PS fluid

Audi A4 in Connecticut, United States Feb 2008 - Mar 2015
Apr 2009 118000 mi US $700	EPC and traction control light came on randomly causing intermittent loss of power, and hesitation.
Aug 2009 121000 mi US $974	throttle body sensor replaced Also had routine 120k svc
Dec 2010 141000 mi US $230	clutch position switch
Mar 2011 145000 mi US $2000	balance fly-wheel broken and shifter-linkage along with clutch
Apr 2011 146000 mi US $450	windshield wiper control unit failed
Aug 2012 158100 mi US $200	all windows did not go down; wiring harness to drivers door replaced
Nov 2014 183000 mi US $400	coil pack replacement - one bad but all 6 replaced
Feb 2015 188000 mi US $1500	Needed replacement of entire steering rack

Audi A4 in Virginia, United States Sep 2006 - Jun 2011
Dec 2008 69000 mi US $800	The A4's ignition coils crapped out AGAIN plus spark plugs, vacuum lines, throttle plate cleaning and lots of other labor charges to replace coils & plugs.
Dec 2009 74000 mi US $2000	New front control arms installed - had failed after 7+ years driving on city roads.
Aug 2010 79000 mi US $1400	Brakes, ignition coils (again), minor bodywork
Sep 2010 90000 mi	ignition coils went again within 1 month of new ones installed; I sold the car the day I picked it up from the shop

Audi A4 in Wisconsin, United States Sep 2007 - Sep 2009
Aug 2008 63000 mi US $200	Both horns needed to be replaced.
Dec 2008 65000 mi US $200	Engine water temp sensor was replaced. Windshield wiper are assemblies both broke (at separate times) and were completely replaced
Apr 2009 68000 mi US $300	2 of 6 ignition coils bad. Shop recommended replacing all 6, which was done. 2nd time since car was new that this had to be done. Hose came off of emission control fan, causing high pitched turbo-like whine for up to 30 seconds, intermittently and mostly on engine cold start. Mechanic discovered and reattached hose at no charge while diagnosing problem #1

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Audi A4 in Ohio, United States Oct 2013 - Jul 2014
Jul 2014 202000 mi US $76	Fuel pump failed and was replaced

Audi A4 in Virginia, United States Apr 2008 - Jun 2014
Nov 2008 86000 mi US $80	Left Inner CV Boot torn. Replaced Inner and outer CV boots.
Jun 2009 94000 mi US $5500	Catalytic Converters (L & R) Torque Converter replaced
Aug 2010 104200 mi US $608	Noticed vibration in Front end 25MPH on up. Vibration feels like wheel out of balance.
Apr 2012 117300 mi US $1000	Replaced RF CV boots (Inner and Outer). Replaced RF upper links bushings, and replaced LF tie-rods (Inner and Outer). Four wheel alignment, wheel balance & rotation done.

Audi A4 in Rhode Island, United States Feb 2010 - Jun 2011
Apr 2010 130000 mi US $250	The wheel bearing was off and needed to be fixed

Audi A4 in Ohio, United States Aug 2008 - Dec 2015
Feb 2015 136900 mi US $600	Replaced all engine mounts.

Audi A4 in Massachusetts, United States Sep 2008 - Oct 2011
Apr 2008 59000 mi US $1000	timing belt. Belt had to be replaced because it was giving us trouble, this was unusual according to the dealer...belt looked to have been run very hot for extended periods of time, possibly an LA car or other metro location?
Jan 2010 76000 mi US $22	OEM ignition coilpack failed on cylinder #4. Drove to dealer adn all 6 were replaced under pending recall.
Oct 2010 83000 mi US $50	Changed out oil level sensor to alleviate "Bad Oil Level Sensor" message on car's diagnostic display.
Mar 2011 85000 mi US $150	Left rear caliper locked shut and needed to be replaced.

Audi A4 in California, United States Jan 2007 - Mar 2016
Dec 2010 130000 mi US $162	Temperature sensor failure caused fan to run at high speed at cold start. Part was replaced. Hood failed to remain open. Replaced Hood Strut
Jan 2011 130000 mi US $464	Drive belt tensioner failed. Belt tensioner, multi rib belt and expansion tank cap replaced. Alarm horn has failed. Fault for this alarm horn also registered in the computer. Replacement cost estimate was ~$500. Not repaired due to high cost/low usage.
Mar 2011 134000 mi US $1157	Water pump bearing starting to fail. Water pump and timing belt replaced.
Feb 2012 148000 mi US $1800	Catalytic converter fault Torque converter fault. slippage faulty brake light switch
Apr 2012 151000 mi US $4200	Catalytic converter Bank 1 (Feb was bank 2) Torque converter slippage. seal failure
Feb 2013 164000 mi	fuel pump failure one fuel cell failure. Chargable only to ~10.5V
Sep 2013 174000 mi	Malfunction Indicator Light was intermittently flashing near 170000 miles. Usually occurred when coasting on flat or downhill at highway speeds. Issue disappeared before mechanic could check.
Jun 2014 185000 mi US $2600	intake manifold gasket and associated tubing replaced. (engine did not turn) rnwater temp sender and o-ring and spark plugs
Sep 2014 190000 mi US $200	Left headlight blown. Right headlight heavy flickering. Both headlight bulbs replaced.
Dec 2014 195000 mi US $600	Sheared Driver CV Boot. Motor Mount (Front/Snub) crack.

Audi A4 in Pennsylvania, United States Nov 2011 - May 2022
Jul 2012 110700 mi US $25	whenever driving above 65MPH with slight uphill, i feel a little kick. went to dealer and got a code for torque converter (P0741) which needs to be replaced.
Feb 2013 119700 mi US $100	the windshield fluid wasn't coming out but the wipers were working fine. I took it to the dealer and they found that a fuse need to be replaced. also told me that if this happens again, the pump and the protective cover will need to change.
May 2013 125100 mi US $275	the front right window regulator had to be replaced as the regulator cable wear out.
Jan 2014 121800 mi US $557	the Drive shaft need to be replaced after noticing knocking sound while driving and also the car vibrate at low and high speeds. I got a used one for $250 instead of paying $1600 for the new one.
Apr 2014 146000 mi US $295	The turning signal switch got replaced.
Aug 2014 150400 mi US $250	the front right wheel hub was giving loud noise and in need to be replaced.
Oct 2014 153200 mi US $109	the cupholder did broke and was replaces by a genuine one from online seller ( $84.00).
Apr 2015 163000 mi US $910	the front left wheel bearing needed to be replaced. Also, discovered that the front upper front and front upper rear control arms needed to be replaced. the left rear window regulator needed to be replaced.
Mar 2016 186000 mi US $160	Oxygen sensor bank 1 has to be replaced.
Apr 2016 187000 mi US $40	coolant sensor had to be replaced.
Dec 2016 210000 mi US $738	replaced driver's side wheel bearing due to noise. serpentine belt tensioner and serpentine belt was replaced. front left inner CV boot was replaced.
Feb 2017 214000 mi US $522	There was a humming sound when making turns. It was thought to be the steering rack but turned to be the power steering pump. The rear differential seal was seeping and had to be replaced.
Mar 2017 216000 mi US $100	The parking brake seemed to get stuck couple of times. One of the (may be called hoops) was frozen. Got some WD-40 and all is back to normal. The passenger's side headlight washer jet in the front bumper was loose where its screws seemed missing and had to be fixed back in place.
May 2017 218000 mi US $263	After having the CEL on for many years, crankcase vent valve got replaced. The CEL went off for a day then came back on again. When scanned, it showed code P0441 (evaporative emission system/ incorrect purge flow).
Nov 2017 238000 mi US $720	the water pump did fail ,though was replaced back in February, and had to be replaced. Also, after getting the anti-freeze fluid every where the power steering pump did fail also and was replaced.
Feb 2018 244000 mi US $40	the brakes [brake lights] used to stay on. Brake switch got replaced from an old beetle.
Mar 2018 245000 mi US $70	rear brake rotors and pads replaced. License plate light wasn't working due to broken wires. Wires replaced and a new bulb was put on. Passed inspection.
Apr 2018 246000 mi US $50	Front rotors replaced.
Jun 2018 250000 mi US $614	the dual radiator fans were making loud noise and had to be replaced. Got used ones for $120. Leaking valve cover gaskets had to be replaced. misfire in cylinder 6. a coilpack had to be replaced.
Oct 2018 256000 mi US $330	the right parking brake cable did seize many times so I had it, with the left side, replaced.
Dec 2018 262 mi US $152	misfire in cylinder 1, Delphi coil replaced by old Audi one. Also, discovered the valve cover gaskets were leaking.
Jan 2019 263998 mi US $140	Valve cover gasket at the passenger's side was replaced ($ 50 for the part).
Feb 2019 265571 mi	Front brakes were replaced.
Apr 2019 270990 mi US $460	Inner driver's side CV boot was leaking. Got a new one from FCP. Box flex pipes were replaced.
Jan 2020 287899 mi	Fuel pump replaced.

Audi A4 in Tennessee, United States Nov 2008 - Nov 2013
Dec 2008 44000 mi US $150	Coil pack on one cylinder. Will probably replace the rest myself as they are a problem for many Audi 3.0 owners.
Mar 2010 50000 mi US $2000	Trans computer replaced along with tiptronic switch circuit board
May 2010 50900 mi US $2000	Tiptronic switch and circuit board replaced. Trans would not shift from park to any other gear without starting the car in Neutral and forcing it to shift.
Feb 2012 58000 mi US $575	Replaced left rear caliper which was leaking. Also did rear pads at that time.
Sep 2012 59000 mi US $50	Coolant temp sensor
Nov 2013 64000 mi	leaking cam seals, collapsed valve tappet

Audi A4 in Montana, United States Dec 2007 - Jan 2009
Jan 2008 59000 mi US $1635	Software update: $135 Long overdue, apparently misfires were occurring that caused supplemental check engine codes along with the cat replacement. Intake manifold: $1500. Repairs done due to a plastic rattle sound from intake manifold changeover mechanism that rattled in its seat during med-hard acceleration until intake changeover at 4200rpms. Cat replacement: covered under extended emissions warranty 8yr/80K but costs was quoted at about $1200 Caused by intermittent check engine light for a bank 2 O2 sensor code .

Audi A4 in Massachusetts, United States Apr 2008 - Mar 2010
Mar 2008 75000 mi US $2800	Had to replace one of the overhead cams which the dealer said was a common repair for this car

Audi A4 in Florida, United States Mar 2014 - Apr 2014
Apr 2014 110000 mi US $20	replaced ignition coil

Audi A4 in North Carolina, United States Sep 2006 - Nov 2010
Dec 2006 43000 mi	rear brake light was off, shop replaced at no cost
Mar 2009 65000 mi	Gearshift inoperative.

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Audi A4 in Virginia, United States Feb 2007 - Mar 2010
Mar 2007 41000 mi US $50	It took 3 trips to accurately diagnose the problem as a pinhole in the cylinder head. The repair was JB Weld and is currently holding although I don't feel that it was appropriate. I think the head should have been replaced.

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Audi A4 in South Africa May 2010 - Jun 2012
Aug 2010 116560 mi R 2600	water temp sensor faulty upper C links on steering replaced
Jan 2011 119660 mi R 350	driver door wiring connector. wires cracked from door opening and closing, causing window to stop working. no error lights
Dec 2011 126480 mi R 12000	Tandem pump leaking, also replaced front disks and pads, timing belt and water pump

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Audi A4 in Missouri, United States Jul 2007 - Sep 2008
Sep 2007 US $86	Replaced valve cover gasket due to oil found on ignition coil and spark plug in cylinder #2. Three of four ignition coils needed to be replaced. Sold car.

Audi A4 in Oregon, United States Jun 2007 - Jan 2008
Aug 2007 53000 mi US $600	breather hose from the intake manifold to suction pump/breather valve cracked

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Audi A4 in Nevada, United States May 2007 - Mar 2010
Aug 2007 64000 mi US $50	Coolant flange replaced.

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Audi A4 in Georgia, United States Oct 2007 - Mar 2010
Feb 2008 72000 mi US $500	Coolant leak.

Audi A4 in Iowa, United States Jan 2007 - Sep 2007
Feb 2007 50000 mi	Headlight windshield washer pump failed
Aug 2007 52000 mi	Coolant Sensor Malfunction Transmission sensor failed causing tranmission to default to "limp home" mode.

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Audi A4 in Texas, United States Jan 2008 - Mar 2010
Feb 2008 68000 mi US $510	Front upper control arms replaced, along with tie rod ends and sway bar links.
Mar 2008 71000 mi US $210	Steering rack replaced. Alignment done.
Dec 2008 81000 mi US $700	New shocks to replace leaking originals. Upgraded shocks to koni FSD. replaced all front control arms.

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Audi A4 in South Africa Sep 2010 - Jul 2013
Dec 2010 119040 mi R 3000	Oil leak - found pcv pipes cracked. replace all.
Mar 2011 120900 mi R 7300	Hose connector at the back of the cylinder head replaced
Jul 2012 132060 mi R 850	Alarm siren kept going off
Jul 2013 137020 mi R 350	Metal pipe corroded. Replaced temp sender unit

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Audi A4 in Colorado, United States Jun 2007 - Mar 2010
Jul 2007 60000 mi US $1900	Water pump was leaking and needed to be replaced; replaced the timing chain also b/c it's recommended to be changed at 90K miles & have to change the water pump at that change also -- planning on keeping the vehicle, so it was prudent

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Audi A4 in New York, United States Dec 2008 - Mar 2010
Jan 2009 49000 mi US $500	Alternator went bad.

Audi A4 in Colorado, United States Sep 2011 - Dec 2013
Dec 2011 150000 mi US $501	EGT sensors and throttle body boot
May 2012 155000 mi US $700	previous control arm work was faulty and needed repair also received an alignment new brake pads
Dec 2013 176000 mi US $330	misfire -- coil pack replaced

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Audi A4 in Florida, United States Sep 2006 - Jan 2024
Nov 2006 38000 mi US $50	Valve cover gasket was bad, causing leak to occur. Auto-dimming rear view mirror went bad Steering exhibits creaking noise when turing left. Also exhibits creak on right too, but lesser so.
Dec 2006 39000 mi	Autodimming mirror replaced
May 2007 41000 mi US $80	Fuel gauge sender unit went bad
Aug 2007 41000 mi US $600	Bad steering arm. Replaced pair of arms.
Dec 2007 44000 mi	Broken vacuum hose
Feb 2008 45000 mi US $40	Flasher relay went bad.
Mar 2008 46000 mi US $600	Camshaft tensioner seal leaking oil. Replaced seal.
Apr 2008 46000 mi US $300	Exhaust Gas Temperature Sensor.
Feb 2009 51000 mi US $700	Replaced upper control arms (loose fittings) Bad temperature sending unit.
Jul 2010 59000 mi US $600	Replaced auxillary water pump (sometimes called after run cooling pump) Cracked coolant tank replaced CV boot replaced
Nov 2010 60000 mi US $300	Replaced whining fuel pump
Mar 2012 69000 mi US $25	Coolant temperature sensor bad. Replaced temperature sensor. Exhibited bad starting as source of problem.
Jun 2012 71000 mi US $500	Oil level sensor bad, replaced CV Boot torn, replaced Hood strut failed, replaced
Aug 2013 78300 mi US $2000	Replaced all 8 control arms Alternator failed, replaced All brake lines were showing signs of dry rot. Replaced Master cylinder cracked, leaking. Worn tie rod ends, replaced.
Dec 2013 80000 mi	Coolant sensor leaking
Sep 2014 83000 mi US $960	Replaced vacuum hose assembly Replaced valve cover gasket Replaced battery - dead
Nov 2014 84000 mi US $650	Replaced blown hose between rack and pump Heater core required flushing
Mar 2015 86000 mi US $1200	Leaking coolant hoses Leaking camshaft seal
Jun 2016 91000 mi US $600	Several cooling hoses leaking, replaced Windshield wiper pump cracked, replaced
Feb 2017 95000 mi US $300	Replace valve gasket
Jun 2017 96000 mi US $850	New steering pump and hose
Feb 2018 98000 mi US $200	Dead battery. Replaced.
Jul 2018 100000 mi US $2000	Replace struts/shocks Replace exhaust gas temp sensors
Aug 2023 137000 mi US $4500	New clutch

Audi A4 in California, United States Mar 2011 - Dec 2012
Oct 2011 191800 mi US $120	turn signals (relay)

Audi A4 in Colorado, United States Mar 2011 - Mar 2012
Feb 2012 122900 mi US $400	Replaced cat-back after hangers rusted off on old system

Audi A4 in Georgia, United States Jan 2014 - Jun 2022
Apr 2015 176000 mi US $900	Driver's side exhaust cam, and exhaust lifters had to be replaced, along with the cam adjuster. It appears that the 1 lifter failed.
Oct 2015 182000 mi US $45	Crank position sensor was replaced.
Feb 2016 187000 mi US $80	Replaced the passenger side inner-boot, on the CV joint. Airbag control module had a fatal error, and had to be shipped out to an airbag control module repair company.
Mar 2016 187000 mi	Cup holder no longer worked, it would not open up out of the dash.
Aug 2016 192000 mi US $525	After 110k miles I needed to replace all 4 rotors and pads. Also had to replace the rear calipers.
Jan 2017 183700 mi US $415	Original lower control arms and tie rod ends(outer) replaced
Apr 2017 187000 mi US $65	-swaybar bushings -swaybar end links
Jun 2017 197000 mi US $80	Inner tie-rod ends replaced.
Oct 2017 201000 mi US $600	Oil/filter change P.S. outside C.V. boot 034 Snub mount 02 sensor (p.s.)
Dec 2017 201000 mi US $500	rebuilt passenger side stern motor mount trans mounts(Apikol) rear diff mount(Apikol) rear diff bracket bushings(Apikol)
Apr 2018 204000 mi US $350	-D.S. swaybar mount/bushing -D.S. motor mount/swaybar mounting bracket TB kit from Pure MS *Audi water pump was leaking(weep hole) after 39k miles
Jun 2018 205000 mi US $100	Mechanical fan clutch replaced Fan temperature sensor replaced
Dec 2021 218000 mi US $100	Ignition lock cylinder replaced due to a lack of starting issue. Starter would not turn over, unless I moved the steering wheel back/forth to engage the steering wheel lock.
Jan 2022 218000 mi US $1200	Pressure plate failed causing the slave to fail. Replaced clutch.

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Audi A4 in Arizona, United States Jan 2009 - Dec 2012
Feb 2009 111000 mi	I could smell burning oil when the heat or ac was on. One of the valve cover seal and camshaft seals were shot leaking oil. 2.7T
Oct 2012 148300 mi	Blown passenger side turbo had big turbo kit installed.

Audi A4 in Colorado, United States Dec 2008 - Mar 2010
Jan 2009 108000 mi US $584	Front upper control arms both sides.
Feb 2009 108000 mi US $550	Front upper control arms replaced.

Audi A4 in Massachusetts, United States Sep 2013 - Jul 2018
May 2015 163900 mi US $285	Wheel bearing
Jun 2015 165000 mi US $142	replace door speaker
Jul 2015 165200 mi US $1095	replace pads, caliper and e-brake cable
Jun 2017 173000 mi US $500	calipers were sticking and were replaced

Audi A4 in Manitoba, Canada Aug 2009 - Sep 2013
Jun 2009 81220 mi C $50	Repair Coolant Leak
Sep 2009 37200 mi C $259	Aux Coolant pump failed.
Jan 2010 44140 mi	Coolant expansion tank developed leak.
Mar 2012 49600 mi C $5000	Transmission was noisy in first gear. Replaced with re-manufactured unit.

Audi A4 in New York, United States Oct 2012 - Jan 2015
Feb 2014 45000 mi US $800	frozen rear caliper. replaced both rear calipers, replaced rear brake lines, bled and refiled brake fluid, new brake pads
Jul 2014 45000 mi US $100	AC not cooling sufficiently. Just needed a recharge. No leaks were found.
Aug 2014 45300 mi US $500	broken Vacuum for central locking

Audi A4 in Colorado, United States Aug 2011 - Oct 2011
Sep 2011 123000 mi US $900	Turbos sealed and turbo vacuums replaced.

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Audi A4 in Ontario, Canada Aug 2012 - Dec 2015
Oct 2012 86560 mi C $500	Front control arms including tie rod ends were changed. sub-sequential wheel alignment required
Jan 2013 92460 mi	Cleaned up corrosion in wiper assembly, common in cars because white metal wiper studs pressed into brass fittings. Pulled motor and assembly out, pressed wiper studs apart, cleaned & greased all contact & joining parts. audiworld.com/tech/misc44.shtml
Jun 2013 102920 mi C $100	replaced rear callipers (one seized)and all rotors and pads A/C recharge required
Jul 2013 103720 mi C $55	Left rear wheel bearing (last replaced 30,000km ago)
Dec 2013 113460 mi C $130	Replaced both front oxygen sensors and one ignition coil. All other ignition coils will require changing in the near future
Mar 2014 117800 mi C $400	rear passenger wheel bearing (driver side replaced 9 months prior). These appear to be a high wear item on this vehicle
Aug 2014 124620 mi C $30	leaking aux. water pump. Replaced with new replaced exhaust clamp as old one rusted.
Oct 2015 128340 mi	diverter valves changed

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Audi A4 in Pennsylvania, United States Nov 2009 - Mar 2010
Dec 2009 57000 mi US $400	Seal damaged to rear drive.

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Audi A4 in Sweden May 2009 - Aug 2014
Jun 2009 114700 mi $1300	Oil sludge in engine. Clogged oil pump pickup. Lost oil pressure. Use correct motor oil!!!
Oct 2009 116560 mi	leaking onto passenger side floor, plenum drain holes probably clogged.
Jun 2011 124620 mi $300	front brake hoses replaced
Dec 2013 135160 mi $2000	Parking brake broken. replaced cables. both rear calipers were bad along with the discs and brake pads. All parts were replaced.
Jun 2014 137020 mi $300	rear brake line broke during yearly inspection. replaced brake line.
Aug 2014 137020 mi	Would not start. Timing belt skipped is what mechanic said. Tired of problems with this car so I sold it without repair.

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Audi A4 in Ontario, Canada Mar 2007 - Apr 2011
Sep 2007 68820 mi C $550	thermostat was staying open and the engine coolant temperature was too low.
Oct 2008 78740 mi C $200	Cracked temp sensor.
Feb 2009 82460 mi C $800	Rear brake ABS sensor became loose due to rust & corrosion and both left & right had to be replaced. Both drive shafts removed and sandblasted.
Sep 2009 86800 mi C $400	driver side fog light was severely corroded and required replacement
Apr 2010 93000 mi C $600	rear seal was leaking, replaced and is now fixed right front tie rod replaced.
Jan 2011 99200 mi C $85	Check engine light came on after engine had stumbled after starting - reported engine miss

Audi A4 in British Columbia, Canada - Aug 2009
Jun 2009 48980 mi C $1000	Timing belt/water pump Tie rod end
Jul 2009 51150 mi C $20	Replaced few broken vacuum hoses
Aug 2009 51460 mi C $50	Leaky valve cover gasket

Audi A4 in Virginia, United States May 2011 - Jul 2011
Jul 2011 118000 mi US $350	O2 sensor and EGT sensor on the driver side replaced.

Audi A4 in Colorado, United States Feb 2010 - Jun 2014
Feb 2011 170000 mi US $300	Oil leaking slowly from cam tensioner seal. Intermittent oil burning smell in the cabin. Replaced cam tensioner seal.
Jan 2013 171500 mi US $20	Brake pad light was illuminated although brake pads are not in need of replacing. Sensor wiring is damaged in wheel well. Circuit jumped to remove warning light.
Jul 2013 190000 mi US $200	Control arm worn and in need of replacement. Part replaced.
Dec 2013 194000 mi US $150	Thermostat replaced Oil Level Sensor replaced

Audi A4 in Alabama, United States Jan 2010 - Jun 2011
Jun 2010 128000 mi US $1500	Clutch and flywheel replaced

Audi A4 in Idaho, United States Sep 2007 - Oct 2009
Mar 2008 96000 mi US $300	Valve cover gasket and cam tensioner were leaking oil on engine.
Apr 2008 98000 mi US $200	Boost change over valve "N75" had to be replaced along with a few vacuum lines. CEL hasn't returned since.
May 2008 98000 mi US $30	Coolant Temp Sensor replaced due to erradic Engine Temp gauge.
Jul 2008 102000 mi US $400	Alternator was not charging battery. Tested electrical system at shop. New alternator was installed, problem resolved.
Apr 2009 110000 mi US $25	severely worn TRE. Replacement of both TRE's successful.

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Audi A4 in North Carolina, United States Aug 2007 - Mar 2010
Sep 2007 67000 mi	Car would randomly not have a charge on the battery and require a jump-start, dealer replaced battery. The battery was new as of May '07. While the car was at the dealer for service, it was actually stolen. Recovered the next day, but still.

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Audi A4 in Arizona, United States Sep 2006 - Nov 2007
Jul 2007 66000 mi US $125	mass air flow sensor failed. We had noticed a drop in power, scanned the car with our scanner, and determined part of the failure. Turns out Audi had a recall on the part and had extended the warranty. Overall cost was for labor, as part was covered bu

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Audi A4 in California, United States Dec 2011 - Jan 2012
Jan 2012	Digital information screen in the instrument cluster is totally pixelated. Unreadable. Can turn it off though, so just not using for now. Self-dimming rear view mirror leaked fluid. No more dimming. Currently using a larger clamp on mirror (Broadway), so no hurry to fix leaky one.

Audi A4 in Hawaii, United States May 2009 - Mar 2010
Jun 2009 79000 mi US $1350	Air bag light came on and needed to replace air bag module (about $900). Turn signal stopped working about same time. Replaced flasher relay.

Audi A4 in Colorado, United States Nov 2007 - Mar 2010
Dec 2007 104000 mi US $300	ABS and ESP light appeared - signaling a bad brake system sensor switch, which deactivated the ABS/ESP system. Seems fine now.

Audi A4 in California, United States May 2009 - Mar 2010
Jun 2009 83000 mi US $1600	Suspension, control arms.

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Audi A4 in Ohio, United States Jan 2010 - Feb 2010
Feb 2010 136000 mi US $1450	CV boot replaced.

Audi A4 in North Carolina, United States May 2008 - Sep 2011
May 2010 92000 mi US $600	Both diverter valves for each turbo were bad along with the turbo Y pipe boot.
Sep 2010 94000 mi US $530	Bad rear wheel bearing and front tie rod ends.
Mar 2011 98000 mi US $600	Faulty axles replaced. Control arm set replaced.

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Audi A4 in Georgia, United States Mar 2008 - Nov 2011
Sep 2008 107000 mi	Four new coil packs.
Aug 2010 128000 mi US $1400	Clutch failed, and required replacing with updated dual-mass flywheel. Routine replacement: failure was interesting as OEM flywheel split in two. Not bad for 128K.

Audi A4 in Massachusetts, United States Aug 2010 - Jan 2013
Dec 2010 119000 mi US $500	No power to fuel pump and coil packs. There was a dead short that also caused the fuel pump relay to fail.
Feb 2011 120000 mi US $1603	Went in for an alignment, found broken left rear spring and a torn right front CV boot. After both rear springs and right front CV were replaced, the alignment was done. Also replaced coil packs under TSB, but that was free.
Apr 2011 122000 mi US $480	Both rear wheel bearings had to be replaced.
Apr 2012 131700 mi US $1700	Original clutch failed dramatically, friction material broke into three pieces, flywheel worn beyond resurfacing.

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Audi A4 in Wisconsin, United States Aug 2011 - Jun 2015
Jan 2012 108000 mi US $10170	Replaced turbochargers. Replaced sway bars and struts
Dec 2012 111000 mi US $180	Windshield wiper motor replaced

Audi A4 in California, United States Dec 2011 - Jul 2023
May 2012 104500 mi US $430	Vacuum leak, leading to sensor trips and check engine light. Bad valve replaced.
Dec 2012 107000 mi US $151	Heater not heating properly -- blowing cool air. Coolant level topped of, heater core purged. Helped a little, but heater still not working as it should. Repair would be ~$2000 -- mostly labor to remove dash.
Mar 2016 112000 mi US $700	CV joint boot replaced due to cracking.

Audi A4 in New York, United States May 2012 - Jul 2012
Jul 2012 82000 mi US $1500	Replace both rear wheel bearings. Replace the seals on the rear differential.

Audi A4 in Maine, United States May 2007 - Oct 2014
Jul 2007 57000 mi US $2000	Replacement of O2 sensor, knock sensor and CTS sensor.
Apr 2013 83200 mi US $305	replaced serpentine belt
Jun 2014 93000 mi US $732	replaced rear brake pads and discs: replaced left rear caliper

Audi A4 in New Jersey, United States Mar 2013 - Sep 2014
Apr 2013 154000 mi US $4000	Replaced clutch. Rear wheel bearings.
Oct 2013 156200 mi US $819	Leaking gas line and fuel filter
Mar 2014 158000 mi US $247	Broken muffler side clamps; leaking exhaust; warning light
Jul 2014 159200 mi US $352	Broken brake hose Front brake calipers sticking

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Audi A4 in Texas, United States Jun 2011 - Sep 2011
Aug 2011 79000 mi US $300	Brought to University Audi in Dallas, TX to have oil changed $90. Blinkers would not work $130 to detect problem $75 for relay switch. $26 tax Total $321
Sep 2011 83000 mi	Check engine light on. P0171 code. Not repair yet. Research being done currently to see what code stand for.

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Audi A4 in Virginia, United States Jan 2011 - Mar 2011
Feb 2011 69000 mi US $300	Bad idler tensioner bearing and secondary pulley bearing. Originally diagnosed as water pump

Audi A4 in Georgia, United States Oct 2010 - Dec 2010
Nov 2010 117000 mi US $1400	Heater inoperable. Replaced heater coil [core], r&r dashboard 10 hours labor.

Audi A4 in New York, United States Nov 2007 - Jun 2011
Nov 2008 65000 mi US $500	In for Oil & Filter Change. Evidence of slight coolant leakage from Water pump. Replaced pump, timing belt, pulley, tensioner, belts and fan clutch.
Apr 2010 85000 mi US $220	Replaced noisy rear wheel bearing, apparent after new tires installed
Dec 2010 97000 mi US $500	Repair to loose door latch cable. Replace noisy window regulator.
Jun 2011 109000 mi US $370	Intermittent check engine light for several weeks, car running perfectly. Tech decoded error log "fuel trim too lean". Replaced Air Flow sensor to correct problem. No further trouble.

Audi A4 in New Jersey, United States - May 2012
May 2012 105000 mi US $3300	Engine loss due to cracked dipstick (made of plastic). Major engine problems with a loud slapping noise. Fixed belt tensioner, belt, had to open head.

Audi A4 in Ontario, Canada May 2009 - Jun 2012
Jun 2009 76260 mi C $125	Rear Oxygen Sensor
Jun 2010 88040 mi C $476	Rotors and pads front and back. Bought cheap Chinese rotors, lasted less than a year. Replaced with stock brakes.
Apr 2012 99200 mi C $60	Engine suddenly got noisy, suspected muffler, but was only a rusted clamp.

Audi A4 in Massachusetts, United States Jul 2010 - Jul 2018
Aug 2010 40000 mi US $678	A water leak was discovered on the passenger side c-pillar. Entire headliner was removed from the interior and leak was determined to be from the rear drain hose.
Oct 2010 41000 mi US $170	Replaced transmission output shaft seal that was leaking.

Audi A4 in Ontario, Canada Jul 2010 - Jun 2016
Apr 2011 115320 mi C $1250	Original rear springs were broken. Decided to replace all 4 springs and shocks with aftermarket sport suspension kit instead.
Jun 2011 117180 mi C $150	Replace malfunctioning coolant temperature sensor Replace sway bar links and bushings to correct loud clunking noise
Oct 2011 119040 mi C $400	Malfunctioning thermostat and radiator connection resulting in total loss of coolant.
Mar 2012 124000 mi C $60	Replace rotted flex pipe connection clamp that was the source of an underbody exhaust leak.
May 2012 124700 mi C $300	Very noisy engine at hot idle. Replace failed AWM 1.8T cam chain tensioner. Also replaced timing belt during same repair job. Also replaced valve cover gaskets.
Jun 2012 125860 mi C $200	Exhaust leak/noise due to corroded flex pipe connection. Replace flex pipe.
Dec 2012 127720 mi C $160	Replaced seized rear brake rotors and pads
Jan 2013 123740 mi C $40	Replace exhaust manifold gaskets. Was leaking exhaust fumes at manifold-to-turbo connection.
Oct 2013 132360 mi C $60	Coolant leaking at engine rear side. Replaced plastic coolant flange and seals. Refill with fresh coolant.
Mar 2014 136400 mi	Coil pack failure causing misfire. All coil packs replaced for free under recall.
Apr 2015 141360 mi C $420	Replace front left wheel bearing Replace exhaust flex pipe
Nov 2015 141860 mi C $300	Replace failed left rear wheel bearing
Dec 2015 142600 mi	Engine misfiring and stalling after start. Problem caused by broken jet suction pump.
Apr 2016 143220 mi C $240	Rear wheel bearing

Audi A4 in Wisconsin, United States Dec 2011 - Mar 2012
Feb 2012 134100 mi US $130	No AC Airbag control module failed Vehicle speed sensor failed
Mar 2012 137000 mi	Heated seat unit burned through drivers seat cushion.

Audi A4 in California, United States Mar 2013 - May 2013
May 2013 159000 mi	Header had been broken for a while.

Audi A4 in Tennessee, United States Mar 2011 - Jun 2014
Jun 2013 153000 mi US $650	Front drive shaft boots were broken and leaking grease. Both drive shafts were replaced.
Sep 2013 156000 mi US $1800	Timing belt replacement
Nov 2013 159700 mi	Temperature sending unit was faulty
Feb 2014 169000 mi US $1200	Rack and pinion was going bad. It was replaced.
Jun 2014 169000 mi	Transmission electronic module got filled with water and the electronics died. Car is unmovable and being sold for junk/parts.

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Audi A4 in Switzerland Jun 2017 - Jul 2018
Mar 2018 123690 mi $430	Replaced leaking coolant flange Replaced G40 Hall sensor New Battery

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Audi A4 in Ohio, United States Mar 2014 - Dec 2015
Feb 2015 116900 mi US $1500	Replaced manifold discharge pipe

Audi A4 in Ohio, United States Nov 2014 - May 2015
May 2015 172000 mi US $80	Torn Passenger Front Axle CV boot.

Audi A4 in Virginia, United States Jun 2007 - Jun 2011
Jan 2008 110000 mi US $500	New wheel bearing and tie rod ends.
Nov 2008 125000 mi US $45	Coilpack
Jun 2009 144000 mi US $2000	new shocks springs wheel bearings control arms tie rods
Dec 2009 155000 mi US $100	axle fell out, then cheap aftermarket replacement part exploded two weeks later fixed axle myself, back on the road

Audi A4 in Utah, United States Feb 2016 - Sep 2018
Jun 2016 178000 mi US $250	Secondary air injection pump failed
Sep 2018 228000 mi US $300	Secondary air injection pump again

Audi A4 in Massachusetts, United States May 2010 - May 2013
Jul 2010 236000 mi US $600	Multiple issues. Came in for "EPC Light" on. Ended up doing other maintenance repairs: oil change, coolant flush, various hose proactive replacements. Found additional axle boot torn = replaced.
Aug 2010 236000 mi US $60	Headlight washer pump failed
Mar 2011 243000 mi US $250	Rear brake caliper replacement - leaking Valve cover gasket replacement - leaking Repair front headlight washers - stuck
Jun 2011 249000 mi US $225	Rear brake caliper replacement (the other side!) - leaking Backflush heater core - clogged/no heat Replace oil temperature sensor
Oct 2011 259000 mi US $330	Backflush heater core - clogged/no heat, $130 Replace oxygen sensor after CEL, $200
Mar 2012 270000 mi	Backflush heater core - clogged/no heat
May 2012 275200 mi US $400	The ECU actually died! Of all things to break, I wouldn't have thought the ECU to die. There was no moisture of any sorts.
Jun 2012 278000 mi US $120	Installed new battery
Mar 2013 294000 mi	Bad wheel bearing Bad suspension shock

Audi A4 in Pennsylvania, United States Mar 2012 - Dec 2015
Apr 2012 143200 mi US $500	Exhaust blowing white/blue smoke. Turbo charger had a fair amount of in-and-out shaft play. Removed turbo to rebuild it. Upon draining the oil, it looked mixed with coolant. Suspect head gasktet needs to be replaced as well.
Jun 2012 144000 mi US $100	Brake lines were cracking, needed replaced. Upper rear control arm, passenger side
Aug 2012 144500 mi	Emission system leak - problem was created by previous owner by puncturing the charcoal canister. Plugging the puncture fixed the problem (IE no more check engine light illuminated).
Apr 2013 149300 mi US $600	New control arms, inner and outer tie rods, and rear suspension bushings. Engine mounts. Left CV axle.
Jun 2013 151000 mi US $200	Rear a arm bushings shot, needed replaced.
Dec 2013 154000 mi US $80	Coil packs were going bad, car misfiring under boost. Found that the previous owner had 3 different coil part numbers in the car. Replaced with VW/Audi recommended part # for the engine.
Aug 2014 157000 mi US $250	AC charge, C High pressure switch changed.
Dec 2014 159000 mi US $30	Car was overheating, replaced plastic flange on the back of the block and all O-rings to prevent future leaks.
Feb 2015 160000 mi	Crankcase breather elbow slipped off its clip, oil would fly out of the opened hole onto the engine. Easy fix, no idea why this occurred though.
Apr 2015 162000 mi US $25	rear axle seals
Jun 2015 162000 mi US $400	clutch wore out = changing the clutch, flywheel, pressure plate and rear main seal.
Sep 2015 163000 mi US $80	knock sensors were bad
Nov 2015 163000 mi US $20	ECU Relay went bad

Audi A4 in Nebraska, United States Apr 2010 - Feb 2011
Dec 2010 103000 mi US $64	Car was reporting lean fuel condition. MAF was replaced.
Feb 2011 104000 mi US $250	Poor fuel economy -replaced MAF, and O2 sensors

Audi A4 in California, United States Nov 2012 - Jun 2013
Dec 2012 171000 mi US $495	Water pump leaking, alternator bolt loose(was wearing down timing belt)
Jun 2013 177000 mi US $300	Misfire

Audi A4 in Massachusetts, United States Sep 2010 - Sep 2011
Oct 2010 145000 mi US $120	Replaced side mirrors
Apr 2011 154300 mi US $150	hazard relay
Sep 2011 158000 mi US $600	Control arm and wheel bearing

Audi A4 in Ontario, Canada Jun 2010 - Aug 2013
Jul 2010 166780 mi C $400	One front and one rear wheel bearing
Aug 2010 168640 mi C $320	Replaced original alternator with re-manufactured alternator
Nov 2011 188480 mi C $1800	Oil light came on. Cause was oil pump. Pump replaced. At same time replaced timing belt. Both tie rods needed replacing as well.
Aug 2013 217000 mi	Rough idle. All vac leaks repaired. No improvement.

Audi A4 in Oregon, United States May 2010 - Dec 2013
Sep 2010 134000 mi	Oil pan drain threads stripped, tried to fix with larger self tapping bolt. Bolt cracked oil pan, had to replace oil pan.

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Audi A4 in Oregon, United States Dec 2012 - Mar 2013
Mar 2013 142000 mi	Coolant Temp Sensor

Audi A4 in California, United States May 2013 - Sep 2015
May 2014 89600 mi US $75	Needed refrigerant. Had lost about half.
Jun 2015 93000 mi US $375	LR Window regulator

Audi A4 in Massachusetts, United States Nov 2011 - Dec 2012
Dec 2011 122000 mi US $450	Replaced 2 valve cover gaskets, brittle and leaking a bit of oil, and replaced o-ring on temperature sensor, leaking anti-freeze.

Audi A4 in New Jersey, United States May 2015 - Apr 2017
Jan 2016 US $125	Heater does not work.
Mar 2016 39000 mi US $65	Rear shelf speaker (subwoofer) was 'rattling'. Found fix for it on line, ordered used speaker on line, disassembled rear shelf, exchanged speaker and reassembled. works great again.
Jan 2017 61000 mi US $40	Left front door base speaker was distorting/rattling. Removed door panel, replaced speaker with a used factory speaker and reassembled door. Works great again.

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Audi A4 in Washington, United States Apr 2012 - Aug 2012
Jul 2012 70000 mi US $200	O2 sensor
Aug 2012 70000 mi	Check engine light, "fault P431" O2 sensor reading too much oxygen. Apparently can be cured by a spacer placed between the sensor and the catalytic converter to reduce the exposure of the sensor. But car sold before this was attempted.

Audi A4 in Massachusetts, United States Sep 2009 - Jun 2018
Dec 2009 127000 mi US $313	Flex pipe Exhaust leak right side
Jan 2010 134000 mi US $100	License plate light assembly corroded and replaced
Dec 2010 142000 mi US $40	Wiper Transmission replaced by used part.
Sep 2011 153000 mi US $800	rear calipers frozen effecting emergency brake. had to replace pads, caliphers and rotors
May 2012 161700 mi US $1050	Catalytic converter replacement
Nov 2012 168000 mi US $2100	Replaced worn clutch
May 2013 174700 mi US $880	Coolant leak
Nov 2013 180400 mi US $906	New Brakes, rotors, calipers
Mar 2015 188000 mi US $580	exhaust piping
Dec 2015 190000 mi US $489	Rear Springs
Jun 2018 219000 mi US $650	Replaced Alternator

Audi A4 in Utah, United States Nov 2009 - Mar 2011
Dec 2009 109000 mi US $1000	Replaced Mass Air Flow Sensor. Replaced Timing Belt (needed) also had water pump because of high mileage but it was still working fine before
Sep 2010 119000 mi US $500	Replaced both tie rod ends and the CV axle

Audi A4 in Ontario, Canada Sep 2014 - Mar 2015
Oct 2014 138980 mi C $800	PCV hoses CV Shaft - outboard passenger, battery, all brakes, bad rims

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Audi A4 in Massachusetts, United States Aug 2009 - Mar 2010
Sep 2009 155000 mi US $400	Replaced fuel injector. Replaced oxygen sensor.

Audi A4 in Iowa, United States Dec 2011 - Jan 2012
Jan 2012 102000 mi US $2800	Wheel bearing noise ... replaced. Worn struts, broken springs ... replaced. Broken/seized bolt on brake caliper ... replaced.

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Audi A4 in Spain May 2010 - Sep 2011
Sep 2010 64480 mi	Support for light bulb in front light panel.
Sep 2011 70680 mi €650	Compressor or A/C went off. Must to be replaced for second time.

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Audi A4 in Ohio, United States May 2007 - Mar 2010
Sep 2007 122000 mi US $350	Clunks and squeaks from front suspension. Control arms, tie rod ends, shocks and shock mounts already replaced. Still noise and can feel clunks over bumps
Oct 2007 122000 mi US $650	Front control arms continued to make noise after being replaced. Multiple faulty arms were found (4 of 8). All 8 arms were replaced using a different OEM supplier. Noise was eliminated. Secondary Air injection code thrown (self diagnosed). Replaced several vacuum lines and a valve. Rattle from front left turned out to be l Engine gasket leaking (smelled oil), replaced gasket.
Nov 2007 124000 mi US $35	Misfire on Cylinder 2. Car was idling rough w/ no reduced power. Swapped coilpacks 2 and 3, misfire jumped to cylinder 3. Determined it was faulty coilpack, replaced with part from dealership

Audi A4 in Michigan, United States Oct 2009 - Mar 2010
Nov 2009 149000 mi US $178	torn cv boot

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Audi A4 in Georgia, United States Dec 2008 - Oct 2009
Jan 2009 130000 mi US $2600	Chipped a tooth in 1st gear 8 months ago. Drove on it til my quattro gearbox fell apart. Due to damage to the speed sensor, I couldn't pass emissions. So was forced to fix...otherwise, I would have driven it into the ground.
Mar 2009 137000 mi US $300	Replaced front CV joints, axles.

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Audi A4 in California, United States Jan 2011 - Feb 2011
Feb 2011 134000 mi US $225	Car needed new mass air flow sensor and coil pack

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Audi A4 in Illinois, United States May 2012 - Jul 2012
May 2012 108000 mi US $400	Real wheel noise

Audi A4 in Ontario, Canada May 2011 - Oct 2011
Jun 2011 87420 mi C $300	Replace rear bearing.
Oct 2011 93000 mi C $200	Car would stall when slowing to a stop. Mechanic cleaned throttle body.

Audi A4 in Indiana, United States Aug 2007 - Mar 2010
Sep 2007 132000 mi US $1733	Complete A/C compressor failure.

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Audi A4 in Colorado, United States Apr 2011 - Oct 2012
Jul 2011 146000 mi US $500	Evacuate and refill A/C refrigerant.
Oct 2012 154000 mi US $500	Replaced leaking coolant hoses, flush, refill, and pressure test.

Audi A4 in Illinois, United States Dec 2009 - Apr 2014
Jan 2010 131000 mi US $550	Replaced coolant thermostat
Sep 2011 138000 mi US $800	AC Compressor replacement
Apr 2014 145000 mi US $1000	AC TENSIONER and BELT REPLACED Front Control arms replaced. A known weakness of this car. Second time they have been replaced on this car, although this time was sooner than expected due to Chicago potholes.

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Audi A4 in New York, United States Mar 2010 - Jun 2011
May 2010 95000 mi US $500	both flex pipes needed to be replaced.

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Audi A4 in Colorado, United States Mar 2009 - Jul 2011
Dec 2009 78000 mi US $350	valve cover/cam tensioner gaskets
Mar 2010 80000 mi US $10	Improper warm-up characteristics from initial start up
Oct 2010 82000 mi US $100	replace leaking radiator

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Audi A4 in New Hampshire, United States Jan 2009 - Oct 2011
Feb 2009 59000 mi	Oxygen sensor replaced. Cost included in purchase price of car.
Sep 2009 69000 mi US $800	Replaced both ignition modules.
Oct 2010 94300 mi	oil leak coolant leak engine misfire, suspected bad injector(s), repaired with injector cleaner
Sep 2011 112000 mi US $310	Turbo pressure hose was replaced.
Oct 2011 113000 mi US $1500	Replaced ABS Controller Module. Replaced two stabilizer parts from the front end. Replaced ABS Controller Module and two stabilizer parts from the front end.

Audi A4 in Missouri, United States Apr 2009 - Jun 2018
Aug 2009 120000 mi US $200	Coolant overflow tank was cracked. This is the second one.

Audi A4 in Quebec, Canada Nov 2010 - Mar 2011
Oct 2010 173600 mi C $950	Heater core a major repair, whole dash had to be removed. Audi quoted 18 hours min and suggested I not fix and keep as summer car. Worried about creating rattles. Local mechanic did work over 2 weeks, says will never do it again.
Mar 2011 176080 mi C $150	Wiper arm had become worn at the connection to the motor, had to be replaced.

Audi A4 in Minnesota, United States May 2010 - Jun 2011
Jul 2010 149000 mi US $611	Failed Alternator

Audi A4 in Florida, United States Apr 2009 - Jun 2015
Jul 2011 112500 mi US $50	Passenger wheel bearing AC not as cold. Recharged and at home and all is well

Audi A4 in Missouri, United States Aug 2009 - Oct 2010
Sep 2009 92000 mi US $3000	fixed oil leak from one cylinder head.

Audi A4 in Ontario, Canada May 2007 - Apr 2014
Jun 2007 40300 mi C $500	Both front steering control arms had excess play which was noticed going over bump on road.
May 2008 49600 mi C $1800	Replaced 2 oxygen and 1 temperature sensors. Replaced 1 windshield washer pump.
Sep 2009 59520 mi C $3400	2 ball joints, 1 lower control arm. 2 rubber boots for front drive shaft.
Sep 2011 71300 mi C $1500	Rear brake - rotors, pads and calipers. Oil change.
Oct 2011 71300 mi C $230	ABS module failed. Owner removed module, sent to Module Master to repair. Received 2 weeks later and successfully reinstalled repaired module.
Mar 2012 74400 mi C $140	Fuel filter was leaking, repaired same day.
Aug 2012 75720 mi C $3000	Front bearings and rear bushings Rocker cover gasket leak
Dec 2012 77500 mi C $180	Replaced driver side door mirror. The mirror's reflective surface and night anti-dazzle finish deteriorated on the driver's side. Two of my friends with Audis say they had the same problem on one side or the other.
Mar 2013 77500 mi C $1000	Car would yaw when drive on snow at 50 km/hr since the ball joints were wore. Replace front and back ball joints and aligned.
May 2013 78000 mi C $250	Replaced battery
Dec 2013 79980 mi C $400	Replaced dashboard LED display with a reconditioned unit.

Audi A4 in Massachusetts, United States May 2010 - Sep 2013
Sep 2010 103000 mi US $300	Thermostat failed - replaced Thermostat and water pump (both original) timing belt, serpentine belt, associated hardware.
Feb 2011 108600 mi	Struts shocks and springs replaced with Coilovers. Shocks were getting soft but could have gone on longer so more mod than repair I guess. On replacing rear shocks found one of the springs was broken.

Audi A4 in Arizona, United States Sep 2009 - Jun 2011
Jan 2010 71800 mi	fuel evap canister leak o2 sensor failed
Dec 2010 72000 mi US $194	Engine had a plugged vacuum line which caused rich and lean running conditions.
Mar 2011 77000 mi US $1300	ac compressor mounting bolts broke off. ac compressor then seized and required replacement.

Audi A4 in Washington, United States May 2009 - Jul 2010
Feb 2010 140000 mi US $300	ABS contoller wasn't working. Got it fixed by ModuleMaster.com

Audi A4 in British Columbia, Canada - Jun 2017
Jun 2017 136400 mi C $3000	It blew out a power steering hose. Then because I ran it dry they had to replace the rack and power steering pump.

Audi A4 in Georgia, United States Dec 2013 - Jan 2015
Jan 2014 US $212	Heater core hoses replaced
Jul 2014 180500 mi US $912	Replace Aux fan Replaced Alternator Left inner CV joint boot replaced

Audi A4 in California, United States Dec 2008 - Oct 2011
Jan 2009 75000 mi US $3000	Removed engine & transmission to replace clutch and all mounts. Replaced timing belt & water pump. Cleaned up all turbo "plumbing."
Sep 2009 81000 mi US $200	Plastic clips for window regulator broke. HVAC cage fan broke (motor still good, but entire unit has to be replaced).
Apr 2010 85000 mi US $180	replaced starter
Jul 2010 87000 mi US $20	Replaced window regulator clips that had failed with stronger A6 clips.
May 2011 90600 mi US $20	Replaced HID bulb.

Audi A4 in New Jersey, United States May 2007 - Jun 2023
May 2008 103000 mi US $500	Front Control Arm.
Jan 2010 110000 mi US $1000	One valve cover had a small leak, replaced both valve cover gaskets while in there for timing belt.
Jun 2010 122000 mi US $400	replace front right axle - torn boot. replace rear right wheel bearing.
Jul 2010 122800 mi	replaced the front left side axle - torn boot.
Sep 2017 193000 mi US $3000	Replace leaking turbocharger
Jul 2021 200000 mi	Replace worn control arm bushings Replace right rear wheel bearing
Apr 2022 205040 mi US $1100	Fuel pump Fuel relay Coolant expansion tank replace
Jul 2022 205969 mi US $411	O-Ring replacement by A/C dryer, A/C recharge.
Sep 2022 206000 mi US $500	Slave cylinder
Jun 2023 206000 mi US $900	Emissions - leak detection pump & filter for gas tank.

Audi A4 in Indiana, United States May 2010 - Jul 2018
Jul 2018 341000 mi US $55	Sticky parking brake mechanism. Replaced brake caliper.

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Audi A4 in Ohio, United States Aug 2009 - Mar 2012
Sep 2009 71000 mi US $2000	Replaced valve cover gaskets. Found RH turbo leaking oil.
Nov 2010 71000 mi	rear calipers frozen on slides. rear brakes inop.
May 2011 71000 mi US $75	Replaced passenger side outer CV joint due to cracked boot.
Dec 2011 72000 mi US $145	Front right outer tie rod end had excessive play. Replaced both outer tie rod ends and took vehicle for alignment

Audi A4 in Pennsylvania, United States May 2007 - Jan 2012
Sep 2009 140000 mi US $120	torque converter check engine light. transmission going into limp mode once a week.

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Audi A4 in Saskatchewan, Canada Aug 2011 - Jan 2012
Nov 2011 103850 mi C $220	Replace rear coolant flange Replace rear coolant flange
Jan 2012 105400 mi C $120	Emergency brake seized caliper resulting in a ruined rear drivers side rotor

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Audi A4 in Virginia, United States Dec 2007 - Nov 2014
Jan 2008 82000 mi US $500	Vacuum leak, bad oxygen sensor. Leaking timing chain cover gasket. Estimate $500. Decided not to fix because I needed the car back that day.
Jul 2010 100000 mi US $500	Left upper control arms bad
Jan 2011 104200 mi US $500	Purchased new tires. Shop claimed rear wheel bearings were loose and needed repacking. Chose not to do repair. Also claimed left CV boot torn. Also chose not to repair. I will let my usual repair shop look at it at next oil change.
Apr 2011 105300 mi US $225	CV boot replaced
Apr 2012 113000 mi	Needs valve cover gasket. Update: I don’t think it really needed to be replaced - I since caught that shop more than once recommending repairs that they had already done!
Mar 2013 120000 mi US $322	Replaced torn CV boot and right front axle.
Jun 2013 122000 mi US $170	Exhaust system leak. Replaced flexible pipe section.
Nov 2013 126000 mi US $400	Bad tie rod end. Replaced.
Mar 2014 130000 mi US $300	Cooling system leak
Apr 2014 130700 mi US $430	Worn CV joint. Replaced.

Audi A4 in Alabama, United States Sep 2014 - Oct 2014
Sep 2014 191000 mi US $390	Main relay was replaced because car was intermittently starting.

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Audi A4 in South Carolina, United States Dec 2009 - Jun 2012
Jan 2010 135000 mi US $100	Replaced pass side outer cv boot. Also replaced driver's side (but had not failed yet) Both motor mounts replaced. Had been leaking since 75k miles
Feb 2010 135000 mi US $80	Replaced driver's side door handle Finally got around to zip-tying the airbag connector under the driver's seat to clear the airbag light. Cleared light with vag-com.
Jun 2011 144000 mi US $100	Replaced tie rod ends again

Audi A4 in Massachusetts, United States Mar 2011 - Jun 2011
May 2011 127000 mi US $180	Left front Brake caliper seized. Replace both front calipers and intalled new pads.

Audi A4 in California, United States Dec 2011 - Oct 2021
Feb 2012 181000 mi US $100	Replaced leaking coolant pump.
Oct 2012 185300 mi US $700	Fuel pump replacement
Mar 2013 190000 mi	Washed MAF sensor
Apr 2013 190500 mi US $240	Replaced front right outer CV boot.
Jun 2013 193000 mi US $400	Front O2 and MAF sensors replaced.
Jan 2014 189800 mi US $400	replaced valve cover gasket and chain tensioner.
Apr 2014 204500 mi US $3	Broken drive side plastic clip. It is part of window regulator. Not sold separately window regulator, which costs ~70. Thanks for 3 dollar after market part the window works again.
Apr 2015 211300 mi US $200	coolant flush
Jul 2015 213000 mi US $400	coolant flange leaked
Jan 2017 225000 mi US $500	Both front wheels bearings were relaced.
Jul 2018 236000 mi US $1100	Oil pump and oil pan
Sep 2021 247000 mi US $250	Rear wheel bearing was replaced.

Audi A4 in Alabama, United States Dec 2011 - Jan 2012
Jan 2012	Had to replace the turbocharger for the third time. Borg Warner K03 turbos are trash.

Audi A4 in Pennsylvania, United States Jul 2011 - Aug 2012
Jul 2012 140000 mi US $50	Secondary Air Pump system was causing CEL light. I had the system written out of the ECU since it is useless. No more CEL and forced ready for inspection.

Audi A4 in Ontario, Canada Oct 2010 - May 2014
Nov 2010 166780 mi C $1700	Engine was not warming up, installed a new thermostat. ABS light comes on once in a while and the brake light blinks at the same time. Shop told me that the brakes are working fine but the communication problem between the ABS system and the computer module causes the lights to come on.
Dec 2010 169880 mi C $1700	Noise from rear driver side, needed a new wheel bearing.
Mar 2012 177320 mi C $260	Clunking noise when going over the bumps. Replaced passenger side control arm.
Jun 2013 188480 mi C $200	Replaced driver side window regulator.
Mar 2014 194680 mi C $75	Windshield wiper transmission assembly was seized. Replaced the assembly with an aftermarket unit.

Audi A4 in Texas, United States May 2010 - Aug 2013
Aug 2010 128000 mi US $350	motor misfire on cyl#2.Tech swapped injectors&ignition coils before finding 30psi lower compression on#2.Audi dealer did same thing&wanted to pull cyl head@$500 just to remove. Declined this. Friend&I-changed MAF.CEL-gone!Safetyinspectionok
Dec 2010 132000 mi	Breather assembly and o-rings, hose were dried and cracked, leaking oil underneath the intake manifold Replaced assembly. Driving down the road at 70mph, 38° F cold day. Engine threw a connecting rod. Total Engine failure, hole through both sides of the block and oil pan. Block destroyed. Crank,timing belt, head fine. Got used block $150 waiting to finish.
Jan 2011 130039 mi US $250	Catastrophic engine failure@70mph on Hwy. #2 con rod broke in half,cracked both sides of block & oil pan. Block is gone timing belt was still attached,cylinder head fine, motor rotates ok. #2 crank journal good. Rod Fatigued-$4K estimated
Jan 2012 132000 mi US $3000	Engine Rebuilt from broken con rod last year. Rebuilt head, new eagle rods, main and rod bearings, piston rings, all gaskets, single mass flywheel clutch pressure plate, oil pump,2 intake,1 exhaust valve on #2 cyl replaced, self built.
Mar 2012 133000 mi US $55	Coolant expansion tank was starting to craze, plastic was starting to leak at the seams. Replaced it with a new one for $30 plus coolant.
Jul 2012 134000 mi US $35	Ignition coil number 1 failed, replaced after running VAG-Com software, $30 and 10minutes of work.
Aug 2013 137265 mi US $200	Replaced MAF sensor $50 used. Original sensor lasted only 15,0000 miles since previous replacement. Also replaced oil cooler, hoses and clamps. Cleared CEL codes CEL error code P0102 low signal Mass Flow Meter. Strange because had replaced this 15,000 miles ago. Bought used MAF for $50. Changed coolant tank(old and yellow), new oil cooler and hoses/clamps changed. Cleared trouble codes-car runs great

Audi A4 in Illinois, United States Jun 2010 - Jun 2011
Aug 2010 136449 mi	Water pump. The power steering rack had an existing problem leaking very little if any hydraulic fluid. Up until 2 months ago, the power steering was leaking very bad and was making a noticeable noise. Replaced power steering pump, hoses and coil rack. Water Pump @ 122K

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Audi A4 in Massachusetts, United States Jan 2009 - May 2010
Feb 2009 68000 mi US $972	Rear pinion seal. CV boot
Jun 2009 71000 mi US $100	a/c drain is plastic, melted closed from high heat, could be from heat shield problem earlier
Sep 2009 72000 mi	wiper linkage binding, lubricated for now
Apr 2010 77000 mi US $200	abs control module

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Audi A4 in Oregon, United States May 2014 - Jun 2018
May 2014 105000 mi US $200	Plugged breather pipe. Increased oil consumption and leakage.
Mar 2015 106900 mi US $100	Oxygen Sensor replacement Replaced Oxygen Sensor Bank 2 Sensor 2.
Jun 2015 110000 mi US $25	Replaced engine coolant temperature sensor and cleared engine code.

Audi A4 in California, United States Oct 2012 - Jun 2016
Jun 2013 108000 mi	Identify source of "boiling coolant" smell; tighten hose clamp at coolant reservoir to reduce leaking.
Nov 2013 109300 mi	Creaking noise when cold and wheel turned sharply. Identified dried rubber bushings but did not replace at this time.
Apr 2014 111000 mi US $957	Leaking coolant. Replaced heater core. Smoke from hood indicated burning oil. Replaced valve cover gasket & cam adjuster gasket, cam plug.
Jun 2016 124000 mi US $1070	ABS control module reported a fault (Indicator light.) Occasional pulsing through brake pedal. Required complete replacement of the module.

Audi A4 in New York, United States Jun 2016 - Mar 2019
Aug 2016 43000 mi US $40	Replaced drivers side auto dimming rear view mirror as fluid leaked out, and visibility was significantly reduced.
Dec 2017 44000 mi US $70	Replaced master cylinder reservoir as it deteriorated from sun exposure.Also replaced brake fluid in system(flushed). Replaced clamp on exhaust coupler which had rusted through.
May 2018 43000 mi	Water leak in trunk discovered when accessing spare tire. Removed trunk liner and dried for now. Bottom of rear window glass no longer adhered to body. Rattles, and may be cause of water leak
Sep 2018 44000 mi US $125	Had glass shop remove, reseal, and reinstall rear glass to remedy leak and rattle.

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Audi A4 in North Carolina, United States Nov 2009 - Jan 2015
Dec 2011 142000 mi US $500	Auxiliary coolant pump exploded Multiple gaskets leaking oil over time Side view mirrors leaking fluid

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Audi A4 in Wisconsin, United States May 2007 - Mar 2010
Mar 2008 47000 mi US $600	Cam tensioner gasket seal. Rear diff seal leaking.
Apr 2008 47000 mi US $300	Crank case breather tube/pcv valve needed replacing. Dipstick tube replacement.
Oct 2008 49000 mi US $1000	Water pump leaking, thermostat malfunction. Tie Rod ends
Jun 2009 51000 mi US $300	Headlight washer pump failed, all fluid leaked out, another thing that will fail if you have this car long enough bad wheelbearing, typical for this car.
Sep 2009 51000 mi	Flex pipe rusted out, had replaced

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Audi A4 in Wisconsin, United States Nov 2007 - Mar 2010
Dec 2007 170000 mi US $50	Replaced the serpentine belt tensioner because the bearing was going out and making lots of noise. Also replaced the serpentine belt. Did work on my own.
Apr 2009 212000 mi US $500	Water Pump bearing went out. Car overheated. Then towed home. WP had 110K on it, so it was time to replace WP and timing belt all at once.
Sep 2009 227000 mi US $200	Replaced drivers side CV axle and driveshaft support bearing.

Audi A4 in North Carolina, United States Mar 2008 - Jul 2009
Jul 2009 120000 mi	Oil leak from the upper oil pan gasket (apparently the upper is more expensive to replace than the lower one which had already been replaced. Central locking vacuum pump dead. AM radio dead.

Audi A4 in Connecticut, United States Nov 2007 - Mar 2010
Dec 2007 153000 mi US $50	Noisy serp belt tensioner replaced.
Apr 2009 169000 mi US $150	Faded Cluster display Flex pipe leak

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Audi A4 in Virginia, United States Oct 2009 - Mar 2010
Nov 2009 171000 mi US $3480	wheel bearing failed.

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Audi A4 in Georgia, United States Jan 2012 - Apr 2012
Feb 2012 166300 mi	caliper carrier, the moving or "floating" hardware has completely corroded and no longer move at all will need to replace to avoid irregular, or exagerated? wear on the pads. this is on the rear right side secondary air system- incorrect flow detected. smoke test did not show any leaks. combi valves suspected, possible the head ports are blocked with carbon buildup, meaning an attempt to clean or replace, ie take car to carmax :(
Mar 2012 168000 mi US $200	cam sensor codes. both sensors replaced. still have codes. wiring checked extensively (8+ hrs labor, billed for 2 hrs) and the was too much resistance in some of the wires. solution at this point is a new/used wiring harness
Apr 2012 168000 mi US $60	carrier pin seized in housing. boot was worn and let brake dust inside housing. i broke the pin loose. sanded it clean. used silicone based antisieze (to all 4 pins; 2 per side) and replaced all 4 boots. Kit included boots,bolts

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Audi A4 in California, United States Nov 2009 - Aug 2013
Jan 2010 180200 mi US $160	Replaced cylinders 3 & 4 ignition coil packs. Coil packs 1 & 2 previously replaced.
Apr 2010 166700 mi US $1200	Steering rack leaking fluid. Fluid built up behind seals, not actually outside of sealed rack yet. Tie rod ends worn. Driver's door lock actuator froze. Part replaced.
Jan 2011 177000 mi US $700	Replaced worn left rear wheel bearing. Replaced torn right front outboard CV boot. Right front wheel bearing in need of replacement - parts back ordered.
Feb 2011 178000 mi US $390	Replaced worn R/F wheel bearing
Apr 2011 179600 mi US $305	Replaced mass air flow sensor
Aug 2011 182500 mi US $380	Replaced dysfunctional windshield wiper stalk (switch/relay unit).
Mar 2012 183000 mi US $575	Alternator failed, original part with ~183,000 miles.
Aug 2012 184600 mi US $380	Replaced dysfunctional windshield wiper stalk (switch/relay unit).
Mar 2013 187000 mi US $127	Coolant inlet hose connection to valve cover.
Jul 2013 188000 mi US $100	Door lock system vacuum pump failed. Replaced w recycled part.

Audi A4 in Massachusetts, United States Feb 2010 - Apr 2017
Mar 2010 104000 mi US $120	Damaged flex/downpipe
May 2010 105300 mi US $50	MAF causing lean code - Replaced with new MAF
Nov 2010 110000 mi	Clamps for power steering hoses failed. Lost all power steering fluid. Replace clamps with new ones.
Feb 2011 113000 mi US $800	A/C Compressor failed
Mar 2011 115000 mi US $200	Broken downpipe, replaced with new one under product warranty
Jun 2011 117000 mi US $2000	Front left wheel bearing started to "hum" Front right, back right, back left wheel bearings. Rear diff seals leaking. Valve cover and cam seals leaking oil.
Sep 2011 122000 mi US $50	ABS module failure. Fixed after module was sent out for repair.
Oct 2011 122800 mi	Blinkers not working. Hazard switch opened up, cleaned, re-installed. Fixed issue.
Nov 2011 124000 mi US $400	Turbo wastegate failed. Replaced turbo with used K04 turbo.
Jun 2012 131000 mi US $50	Crankcase breather hose had a crack in it. Replaced
Feb 2014 142000 mi US $250	Broken flex downpipe
Apr 2014 142200 mi US $1000	Broken spring. Replace entire suspension with coil overs

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Audi A4 in Wisconsin, United States Jan 2011 - Sep 2012

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Audi A4 in Massachusetts, United States Aug 2017 - Jul 2018
Jun 2018 161000 mi US $200	Rear struts and springs

Audi A4 in British Columbia, Canada Aug 2017 - Sep 2018
Jan 2017 99886 mi C $160	Rough idle, flashing CEL. Misfire codes on multiple cylinders. Replcaed ignition amplifier part# 4D0 905 351

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Audi A4 in New Jersey, United States Oct 2010 - May 2011
Apr 2011 94000 mi US $600	Car had timing belt slightly off time by previous shop. Was leaking oil through cam seals an valve covers. Cam chain adjuster failed completely.
May 2011 94000 mi	Both rear axle bearings are.starting to get noisy. Will replace in a few months. Also torn cv boot.

Audi A4 in Nova Scotia, Canada Nov 2010 - Oct 2011
Dec 2010 129580 mi C $400	Replace rear wheel bearings, spindle bushings

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Audi in Ohio, United States Aug 2007 - Mar 2010
Sep 2007 88000 mi US $1650	Oil leaks persistent since

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Audi in Arizona, United States May 2007 - Dec 2010
May 2008 75000 mi US $50	Main fuel line connecting to the fuel rail spit and required replacement. Ordered part and installed after receipt. Part took 3 days to arrive, and car was fixed after we returned from vacation.
Aug 2008 78000 mi US $240	Window regulator failed.
Mar 2009 86000 mi US $140	Torn CV boot, drivers front axle. Axle required replacement due to damage to the CV joint.
Aug 2009 90000 mi US $1500	A/C Compressor destroyed itself, requiring replacement of a number of parts. Replaced valve cover gasket - leaking from rear of engine.
Sep 2009 91000 mi US $400	fuel pump leaking, bent outlet pipe. replaced with new one.
Apr 2010 97500 mi US $500	two window regulators failed. now have all 4 working windows. used independent mechanic
Sep 2010 102000 mi US $500	fuel leak out of top of tank - the cap on the tank failed, causing a rather large leak

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Audi in Wisconsin, United States Sep 2007 - Jun 2011
Mar 2008 106000 mi US $300	Idler pulley bearing failed.
May 2009 128000 mi US $400	Rear driver side wheel bearing required replacement.
Mar 2010 144000 mi US $950	Ball joints required replacement.

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Audi in Pennsylvania, United States Sep 2013 - Jun 2014
Mar 2014 123000 mi US $235	Replace leaking valve cover gaskets

Audi in Texas, United States Dec 2013 - Jan 2014
Jan 2014 US $240	Bosch ABS module working intermittently. Had ABS module repaired and installed by a local shop. Module was installed without having to remove the left front wheel.

Audi in Connecticut, United States Jul 2010 - Jun 2011
Aug 2010 111000 mi US $250	Broken valve cover gasket, coolant temp sensor, cam shaft seal and oil cooler o-ring

Audi in New Jersey, United States Jun 2011 - Jun 2012
Jun 2012 160000 mi US $1500	Replaced Ac Evaporator and heater core

Audi in Ohio, United States Aug 2009 - Oct 2010
Nov 2009 107000 mi US $100	Cruise control module replaced.

Audi in California, United States Dec 2011 - Jun 2014
Dec 2012 162000 mi US $500	Replaced upper control arms.

Audi in Washington, United States Dec 2015 - Dec 2015
Dec 2015 225000 mi US $500	Auto transmission failed

Audi in Florida, United States Mar 2014 - Apr 2014
Apr 2014 106000 mi US $100	Car ran rough and barely started exhaust system failure

Audi in Massachusetts, United States Dec 2013 - Apr 2014
Mar 2014 231000 mi	Roof liner loose

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Audi in California, United States Mar 2010 - Dec 2013
May 2010 145000 mi US $300	tensioner for timing belt failed, causing three valves to bend - renewed valve head with new Start, then stopped after 1/2 block, determined failed fuel pump, towed to residence removed and replaced Fuel pump and filter corrected problem. Upon completion of last fuel pump repair, technician noticed passenger window lowered, but not rising, remove and replace front passenger window motor - corrected problem Central vacuum lock pump failure, unable to use remote unlock or interior unlock, replacement part > $1,000! (parts only!!!) opted to NOT repair at this cost. Disappointed in costly safety item, likely caused by leak in extensive vacuum tube
Jan 2011 172000 mi US $10	All windows, sunroof non-operational. Defective central locking device caused by water leakage in rear right corner. Replaced device, but this didn't fix. Wiring still wet, once dry will try cleaning corrosion. Water leaked into trunk causing central lock vacume elect failure. Caused by clogged sunroof drain - cleared and corrected problem
Sep 2011 148000 mi US $45	A/C non-operational -corrected by adding 1.4 cans of refrigerant - works well now - very COLD!
Nov 2011 155000 mi US $21	Flooded central controller from clogged sunroof tube (corrected) replaced central controler (corrected) replace fuse 38 (corrected failure of windows lights and sunroof) root cause problem clogged drain tubes in sunroof - recommend cleaning
Dec 2011 156000 mi US $56	Leaking coolent - heater bi-pass hose failure
Mar 2012 160000 mi	Intermittent dash console flickering - now non-op security alarm operation.
Apr 2012 160700 mi US $150	Driver's side window regulator failing, needs help alignment when rising - will need to replace soon
Aug 2012 164000 mi US $20	Coolent leak- "O" ring failure at coolent flange, remove and replace - corrected leak that has been progressively getting worse. Now correct pressure and temp operation.
Oct 2012 165000 mi US $200	Drivers front Shock failing (makes rattling sound) -renewal of strut shock corrected problem
Jan 2013 165000 mi US $300	Unknown short discharging battery (killed 2!) Using trickle charges nightly to keep operating until idnetified short. Arr need VAG tool to diag ($300+)
Feb 2013 165300 mi	Battery drain identified as Central Locking system (in trunk) had corroded wire connection, cleaned with baking soda / water - corrected lock and battery drain issue (Determined by putting volt meter in-line and using fuse box to identify
Apr 2013 166000 mi US $50	Drivers side front window regulator failed (in closed position) ordered replacement , will install and replace unit that was acting up (needing driver;'s help when lifting to straighten out how window glass tracks in system.
May 2013 166200 mi US $50	Determined source os electrical drain - coming from non-operational driver's side front electric window, (constantly on un up function) Faulty electrical motor sensor, replaced w/used electrical motor- corrected window operates,
Sep 2013 167000 mi US $75	Excessive chatter from bumps, all control arms recently replaced - shocks renewed,m helped, identified problem after re-installing new shocks at upper shock "rubber" causing chatter from upper strut attachment. (To be done later) Window stuck lowered - remove and replace window regulator (driver's side) root cause cracked plastic cable support for track attachment of window.
Dec 2013 177000 mi US $25	Air Bad light illuminated (Caused by passenger seat strain on connection) - Bought OBCII (cheap kind) cleared and corrected light

Audi in California, United States Aug 2008 - Dec 2014
Feb 2011 83000 mi US $1300	Suspension fix.
Dec 2011 84000 mi US $500	ABS and light intermittently on.
Mar 2012 86000 mi US $1000	ABS light would turn on randomly while driving. ABS control system replaced.

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Audi in Iowa, United States Aug 2011 - Jul 2013
Oct 2011 158000 mi US $348	Leaking power steering fluid- high pressure line replaced.
Dec 2011 162000 mi US $167	The flexible coupling part of the post catalytic converter exhaust system was replaced due to holes in it.
Jul 2012 168800 mi US $200	Had to replace the left rear wheel bearing.
Sep 2012 173000 mi US $400	Oil seal on tensioner leaked
Jan 2013 164800 mi US $243	The coolant temperature sensor had gone bad and needed to be replaced.
Jul 2013 183000 mi	Main seals were leaking, also belt tensioner

Audi in California, United States Jun 2009 - Dec 2009
Dec 2009 165000 mi	ABS computer broken at about 150,000 and has to be replaced, so I just asked to disconnect it in the dealership. 4000+ repair in the year before.

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Audi in Utah, United States Aug 2009 - Jan 2013
Dec 2010 135000 mi US $430	Check Engine light, would not pass emission check. Replaced both Post Cat oxygen sensors. $240 in Parts, $190 in Labor
Dec 2012 156000 mi US $80	Sticking brake caliper

Audi in Washington, United States Mar 2010 - Aug 2013
May 2010 170700 mi US $1600	Steering rack decayed.
Oct 2012 185000 mi US $1600	Also air sensor fried Needed new thermostat (requires removal of timing chain).
Jul 2013 188200 mi US $1000	Cam seals redone; transaxel seals redone.

Audi in British Columbia, Canada Aug 2013 - Feb 2018
Oct 2013 111740 mi	Right side Low Beam bulb replaced. Provided by prior owner of car.
Nov 2013 115940 mi	Oil leak from valve cover gasket onto exhaust manifold
Dec 2013 115940 mi C $80	Misfire on load at low revs cyl4 reproducible reliably on 2nd gear low rev opening throttle. Eventually purposefully caused CEL to light. Obdii p0304. Replaced all 6 spark plugs
Jan 2014 117040 mi C $10	Erratic idle occasional miss with shudder. No codes in obdii or warning lights. Will clean throttle body by end of month
Feb 2014 121520 mi C $10	Did not clean Throttle Body as per prior note - replaced all spark plugs, all spark plug wires, and battery. Runs well now. Driver side foglamp burnt out, and replaced. Involved easy removal of trim, hard to pull out housing. Pain in the butt.
Apr 2014 123360 mi	rear driver side bearing developed growl. Needed to remove and diagnose - water entry and bearing race had minor pitting. Being replaced

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Audi in Montana, United States Jan 2012 - Mar 2012
Feb 2012 116000 mi US $154	Headlight switch failure in steering column. Had to remove airbag, buy a 12mm 12-point bit to remove the steering wheel, removed clock spring and then the headlight switch. Took less than one hour to complete replacement.

Audi in District of Columbia, United States Jan 2012 - Feb 2015
Mar 2012 155000 mi US $900	Brake hoses cracked. Heater core hoses cracked and replaced. Coolant tank was leaking and was also replaced. Power steering hose leaking. Aux radiator cooling fan not working, and preventing AC from functioning properly.
Sep 2012 160000 mi US $200	Cracked spring
Mar 2013 165000 mi	Replaced aux cooling fan. Head gasket leaking. Smells bad. Leak not severe, so living with it for now... Cracked spring. Front control arms observed to be failing.
Mar 2014 172000 mi US $375	Brake fluid reservoir cracked. Replace oil cooler seal Serpentine belt cracked. Power steering high pressure hose leaking
May 2014 172300 mi US $75	Serpentine belt
Jul 2014 173000 mi US $750	Flex joint cracked and made engine extremely loud. Flex joint replaced and re-welded. Catalytic converter did not need to be replaced.

Audi in Wisconsin, United States Sep 2011 - Jul 2016
Feb 2012 223600 mi US $1200	replaced upper & lower control arms

Audi in Iowa, United States Mar 2009 - Jul 2009
Jun 2009 183000 mi	Leaking rear main oil seal when car sold. I put up with it, mostly because I am pretty anal about maintenence. I was losing about 1/2 quart every 3,000 miles.

Audi in Illinois, United States Aug 2017 - Sep 2018
Jun 2018 129000 mi US $500	Both rear wheel bearings got bad and started making noise. Had to go to the shop. One bearing they repaired 3 times when eventually they put the whole hub assembly.
Jul 2018 130000 mi US $100	Had to replace both tie rods both inner and outer which I did with the loaner tool from the local store

Audi in Texas, United States Oct 2010 - Dec 2010
Nov 2010 105000 mi	Power steering pump.
Dec 2010 105000 mi	Leaking a lot of oil and coolant when sold.

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Audi in California, United States Aug 2008 - Jun 2013
Dec 2008 182000 mi US $50	Vehicle faulty codes indicate a malfunctioning throttle body and secondary air induction system. Self-replacing a burned-out headlight.
May 2009 188000 mi US $25	Burned-out headlight
Dec 2009 193000 mi US $340	Driver's side window regulator was said to be "binding internally", hindering window motion (though it could still be closed/opened). Regulator was replaced. Dealership service tech discovered torn outer CV boots, both side. Dealership service tech discovered leaky cam seals
Mar 2010 193000 mi US $600	Replacement of both torn CV boots. Replacement of engine seal causing oil leak.
Sep 2011 201000 mi US $1573	Ventilation motors and A/C Heat control unit failure, requiring replacement.

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Audi in Washington, United States Mar 2009 - Mar 2010
Apr 2009 100000 mi US $185	Thermostat went out

Audi in Georgia, United States May 2009 - Jan 2012
Jun 2009 240000 mi US $350	R&R alternator
Jan 2012 US $300	oil cooler gasket failure

Audi in Alberta, Canada Jul 2013 - Dec 2014
Sep 2013 137640 mi C $1200	Rough idle. Relearned IAC motor and no further issues. Replaced all front ball joints.
Jan 2014 C $850	Oil cooler leak.

Audi in Washington, United States Dec 2015 - Jan 2016
Jan 2016 US $300	A MASSIVE oil leak. Needed a special gasket that goes behind the motor fixed.

Audi in California, United States Oct 2008 - Mar 2010
Nov 2008 118000 mi US $100	Broken serp belt/leaky water pump. Fix airbag connection.

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Audi in Ohio, United States Aug 2008 - Oct 2012
May 2009 98000 mi US $900	Ignition control block was replaced.
Jul 2010 99000 mi US $650	Replaced master cylinder, front rotors and pads
Feb 2011 99000 mi US $140	Oil leak at the oil filter housing gasket - oil light came on - replaced gasket.
Mar 2011 99000 mi US $550	Rear spring broke, replaced both
Aug 2012 104200 mi US $1200	MAF and oxygen sensor wheel bearing

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Audi in Minnesota, United States Jul 2011 - Jun 2018
Dec 2012 150000 mi US $169	Replaced oil suction pump and associated tubing
May 2013 155000 mi US $3500	replace both converters and flex pipe Timing belt, waterpump, cam tensioner seals, cam plugs,valve cover seals, front crank seal, basically the entire engine was resealed upper and lower links replaced front suspension

Audi in Texas, United States Aug 2008 - Mar 2010
Sep 2008 98000 mi US $1100	Air flow meters problem. Radiator was leaking

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Audi in Western Australia, Australia Mar 2012 - Aug 2012
Apr 2012 79560 mi A $385	Recharged AC and Minor Service

Audi in Texas, United States Nov 2012 - Dec 2012
Dec 2012 177000 mi US $200	Leaks on oil cooler hoses and water outlet on rear of head. Replaced engine oil cooler...leaking coolant...pinhole in coolant nipple. Repl L outer CV boot. Replace front and side engine mounts

Audi in California, United States Aug 2011 - Sep 2011
Sep 2011 68000 mi US $660	Put in rebuilt turbo because wastegate actuating rod disconnected from actuator.

Audi in California, United States Dec 2012 - Jun 2013
Mar 2013 146000 mi US $670	Mechanic identified that control arm bushings were close to worn out when replace tie rod ends two years ago. Wanted to get car aligned and mechanic advised that the alignment would not stay without replacing control arms

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Audi in New Jersey, United States Aug 2011 - Oct 2011
Oct 2011 120000 mi US $50	engine misfire caused by ignition controller module broken.

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Audi in Virginia, United States Jun 2010 - Aug 2014
Dec 2010 166000 mi US $550	Excessive play in tie rod ends.
Jan 2011 167000 mi US $500	Brake light stayed on after E-brake released. Needed adjusted (so said the shop).
May 2011 167000 mi US $300	Exterior Temp sensor bad. AC won't work when indicated air temp is -58F. Sensor replaced.
Dec 2011 170000 mi US $750	Steering wheel clock spring (Air Bag light) was bad. Replaced. Discovered that anther SRS component was also faulty.
Jan 2012 170800 mi	The seat air bag sensor was faulty and was replaced.
Mar 2013 187000 mi US $3400	Items replaced: valve cover gaskets, cam seals, cam tensioner, water pump, timing belt, other odd parts + labor.

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Audi in South Africa Jun 2015 - Jun 2018
May 2015 145080 mi R 250	front CV joints
Jun 2016 145700 mi R 125	internal heater renewal

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Audi in Texas, United States Nov 2011 - Jan 2012
Dec 2011 208000 mi US $400	Left front wheel bearing needed to be replaced. I replaced the left front bearing and also the left front drive axle and lower left front control arm at the same time myself.

Audi in California, United States Oct 2012 - Nov 2012
Nov 2012 109000 mi	ABS pump or monitor is faulty

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Audi in Massachusetts, United States Sep 2010 - Mar 2011
Mar 2011 210000 mi US $2000	My bearing went on my front passenger side, a repeated problem. Also Oil leaks have been a repeated problem, exhaust system issues, brake issues, and wheel and suspensions issues have been ongoing for few years. Gave car up

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Audi in Massachusetts, United States Nov 2010 - Apr 2011
Dec 2010 117000 mi US $400	wipers weren't working. The independant shop replaced & repaired.

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Audi in Florida, United States Aug 2011 - Aug 2012
Oct 2011 136000 mi US $560	Rear differential mount broken - shop replaced mount.
May 2012 140300 mi US $880	one of the two cats had died a very noisy death.
Aug 2012 142000 mi	Sunroof plenum drains clogged/leaked. Dealer cleared. They broke C/D Pillar trim and replaced for no trim.

Audi in Alabama, United States Sep 2010 - Jul 2013
Oct 2010 104000 mi US $400	Upper and lower front control arms needed to be replaced + State inspection.
Feb 2013 113300 mi US $125	Battery draining too soon due to overall lack of driving.

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Audi in California, United States Sep 2010 - Dec 2010
Oct 2010 157000 mi US $350	cracked CV boot replaced (maybe this should be considered a wear item given the poor condition of streets where I live)

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Audi in California, United States Jun 2017 - Mar 2019
Jan 2018 109000 mi US $50	replaced window retaining clips instrument panel light bulbs; HVAC control

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Audi A4 / S4 repairs by problem area

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