2012 Audi A4 / S4 Audi A4 / S4 2012

We are 106,000+ car owners sharing real-world car information.

Join Us

2012 Audi A4 / S4 repairs by problem area

Engine (41%)

Transmission and Drivetrain (8%)

Brakes and Traction Control (3%)

Suspension and Steering (11%)

Electrical and Air Conditioning (14%)

Paint, Rust, Leaks, Rattles, and Trim (16%)

Other (7%)

Chart based on 172 repairs.
See TSBs and recalls for the 2012 Audi A4 / S4.

2012 Audi A4 / S4 repair cost distribution

$2500+ (1%)

$1000 - $2499 (7%)

$500 - $999 (12%)

$100 - $499 (15%)

< $100 (65%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 110 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2012 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

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 - Jun 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 - Jun 2018
Jun 2015

32000 mi
replace water pump 
Jan 2018

68000 mi

US $70
replace hood strut 

Return to top

2012 Audi A4 4dr Wagon

supercharged 333hp 3.0L V6 7-speed automated manual AWD

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. 

Return to top

2012 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

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 Ohio, United States
Aug 2011 - Sep 2018
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 
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 Alaska, United States
Mar 2015 - Jul 2018
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! 
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 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 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 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 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 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. 

Return to top

2012 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

Audi A4 in New Jersey, United States
Sep 2016 - Jun 2018
Feb 2017

37000 mi
Heating system not working 
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 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 

Return to top

2012 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

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 Virginia, United States
Oct 2011 - Jun 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. 
Audi A4 in Pennsylvania, United States
Jul 2011 - Dec 2016
Apr 2015

39300 mi
Wheel bearing 
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 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
Aug 2011 - Jun 2018
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. 

Return to top

2012 Audi A4 4dr Sedan

turbocharged 177hp 2.0L I4 Diesel 6-speed manual FWD

Audi A4 in South Africa
Apr 2017 - Dec 2017
Jun 2017

55180 mi
Rear brake pads and discs replaced as pads were worn. 

Return to top

2012 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 8-speed shiftable CVT FWD

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 

Return to top

2012 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

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 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
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 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 Pennsylvania, United States
Nov 2011 - Jun 2015
Jan 2015

41300 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 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 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

32500 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 Texas, United States
Jun 2012 - Sep 2013
Jul 2012

11300 mi
Cold air was blowing intermittently. Dealer replaced sensor. 
Audi A4 in Washington, United States
Sep 2011 - Jun 2018
Dec 2012

20000 mi
Nuisance Check Engine Light - Software upgrade was installed to ensure problem wouldn'r reoccur. 
Audi A4 in New York, United States
Aug 2011 - Jul 2018
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 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 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 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 Connecticut, United States
Feb 2015 - Jun 2018
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 Iowa, United States
Jan 2015 - Jun 2018
Dec 2017

47000 mi

US $950
Front rotors and pads worn, replaced. 
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 - Jun 2018
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. 
Audi A4 in Illinois, United States
Mar 2015 - Jun 2018
Dec 2016

42000 mi
Mmi center joystick knob broke 
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 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 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 Alabama, United States
Nov 2014 - Jun 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 - Jul 2018
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 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 Pennsylvania, United States
Jan 2014 - Oct 2016
Dec 2014

48000 mi
Fixed loose ground connection for rear window defroster 
Audi A4 in Tennessee, United States
Jan 2015 - Feb 2016
Feb 2016

52000 mi
Replacement of leaking water pump 
Audi A4 in Ontario, Canada
Oct 2013 - Jun 2018
Feb 2014

22600 mi
Nob fell off 

Return to top

2012 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

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 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 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 Ontario, Canada
Jul 2016 - Jun 2018
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. 
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 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 Alberta, Canada
Sep 2014 - Dec 2015
Mar 2015

19220 mi
Driver side rear shock leaking 
Audi A4 in Washington, United States
Sep 2013 - Jun 2018
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. 
Audi A4 in Colorado, United States
Sep 2013 - May 2018
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
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 California, United States
Oct 2013 - Jun 2018
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 Michigan, United States
Jul 2015 - Jun 2018
Aug 2015

44500 mi
Brake wear sensor harness had a damaged wire. Replaced under warranty. 
Audi A4 in Ontario, Canada
Nov 2011 - Jun 2018
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 

Return to top

2012 Audi A4 4dr Sedan

Audi A4 in Queensland, Australia
May 2017 - Jul 2018
Jun 2018

67580 mi

A $400
PCV valve replacement 

Return to top

2012 Audi A4 / S4 4-door

turbocharged 4-cylinder automatic AWD

Audi A4 in California, United States
Aug 2016 - Mar 2018
Jan 2017

45000 mi
Windshield replaced 

Return to top

2011 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

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 Utah, United States
Apr 2011 - Jun 2018
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 
Audi A4 in Washington, United States
Mar 2011 - Jun 2018
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. 
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 Washington, United States
May 2011 - Jun 2018
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. 
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 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 

Return to top

2011 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

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 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 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 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 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 Ohio, United States
Nov 2012 - Jun 2014
Jun 2014

6000 mi
battery repaced, under warranty. Only 3 years old 
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 Connecticut, United States
May 2014 - Jun 2016
Jun 2015

37000 mi
High oil consumption test part 1. 
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 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 Massachusetts, United States
Mar 2011 - Jun 2011
Apr 2011

10000 mi
Driver side heated seat not working. Dealer replaced the part. 
Audi A4 in Arkansas, United States
Jan 2011 - Jul 2018
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 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 Michigan, United States
Nov 2010 - Jun 2018
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. 
Audi A4 in Iowa, United States
Oct 2010 - Jun 2015
Jan 2012

44000 mi

US $900
replaced wiper arm 
Audi A4 in Iowa, United States
Sep 2010 - Jun 2017
Jan 2016

64000 mi

US $200
Misfire. Ignition coils replaced. 
Audi A4 in Illinois, United States
Aug 2010 - Jun 2018
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. 
Audi A4 in Massachusetts, United States
Jan 2015 - Oct 2017
Oct 2017

77000 mi

US $700
Replace Front wheel bearing 
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 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

59200 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 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 
Audi A4 in Kansas, United States
Apr 2018 - Jun 2018
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 North Carolina, United States
Oct 2010 - Jun 2018
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.  

Return to top

2011 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

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 Texas, United States
Aug 2015 - Jun 2018
Sep 2017

63000 mi

US $600
Replaced leaking rear main seal. 
Audi A4 in South Africa
Mar 2015 - Jul 2016
May 2016

72540 mi

R 2000
Replace faulty boot lock 

Return to top

2011 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

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 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 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 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 Michigan, United States
Nov 2010 - Sep 2016
Jan 2011

34000 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 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 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 Tennessee, United States
Jul 2010 - Jun 2018
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). 
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 Michigan, United States
Aug 2014 - Jun 2018
Feb 2017

123000 mi

US $623
Replaced rear strut assembly. One strut leaking badly. 
Audi A4 in Ohio, United States
Mar 2014 - Jul 2016
Mar 2016

97000 mi

US $100
Oil consumption issue 
Audi A4 in Manitoba, Canada
Jul 2011 - Jun 2018
Sep 2012

5580 mi
Blind spot warning system seems to be out of calibration. Dealer was unable to replicate problem. 
Audi A4 in Massachusetts, United States
Apr 2013 - Apr 2015
Feb 2014

27700 mi
Piston replacement due to high oil consumption. 

Return to top

2011 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

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 Massachusetts, United States
Jul 2014 - Jun 2018
Jan 2016

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 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 Washington, United States
Sep 2011 - Jun 2018
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 Pennsylvania, United States
Jul 2014 - Jan 2017
Jul 2014

78000 mi

US $750
Mechatronic unit failure 
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 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 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 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 Washington, United States
Oct 2010 - Sep 2011
Jan 2011 Warning light came on for rear differential. Brought car in, they couldn't find any error codes logged. 
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 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 2010 - Jun 2018
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 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 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 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 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 Virginia, United States
Mar 2014 - Dec 2014
Oct 2014

55800 mi
Thermostat replace 
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 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 Washington, United States
May 2013 - Oct 2013
Sep 2013

26000 mi
Leaking fluid 
Audi A4 in Wisconsin, United States
May 2013 - Jun 2018
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 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 California, United States
Apr 2011 - Apr 2017
Jan 2014

27500 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 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 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 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 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 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 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. 
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 Illinois, United States
Jan 2011 - Apr 2015
Sep 2014

82000 mi

US $600
Thermostat failed and was replaced. 
Audi A4 in Arizona, United States
Oct 2013 - Mar 2014
Mar 2014

28000 mi
Thermostat failed in the closed position 
Audi A4 in New York, United States
Feb 2011 - Oct 2012
Oct 2012

13000 mi
Rear axle leak; repaired under warranty. 
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 

Return to top

2011 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

Audi A4 in Connecticut, United States
Nov 2012 - Jun 2018
Jun 2017

106000 mi
Rear rotors and pads 
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 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 New Jersey, United States
Oct 2010 - Jun 2011
Nov 2010

1000 mi
Driver's window doesn't go up and down automaticly. Switch ordered. 
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 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 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 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 Jersey, United States
Mar 2014 - Jun 2018
Apr 2015

33300 mi
Passenger door pull broken 
Apr 2016

40300 mi
Thermostat broken. Caused overheating 
Audi A4 in New Hampshire, United States
Feb 2011 - Dec 2015
Jun 2013

50000 mi
Bluetooth microphone replaced 
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 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 2018
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 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. 

Return to top

2010 Audi A4 4dr Wagon

turbocharged 240hp 3.0L V6 Diesel 7-speed automated manual AWD

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. 

Return to top

2010 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in Iowa, United States
May 2013 - Jun 2018
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 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 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 Ontario, Canada
Dec 2013 - Jun 2018
Jan 2014

47420 mi
Engine was leaking oil after the pistons were replaced under warranty. 
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 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 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. 
Audi A4 in Colorado, United States
Apr 2014 - Apr 2017
Apr 2015

40200 mi
Excessive oil consumption 
Audi A4 in Quebec, Canada
Sep 2012 - Jun 2018
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. 
Audi A4 in Wisconsin, United States
Mar 2010 - Jan 2013
Jan 2012

23800 mi
Rear window washer clogged 
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 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 Massachusetts, United States
Apr 2012 - Jun 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 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 Washington, United States
Dec 2014 - Jun 2018
Mar 2018

73000 mi

US $1300
catalytic gasket replaced. regular service performed 
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 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. 

Return to top

2010 Audi A4 4dr Wagon

turbocharged 170hp 2.0L I4 Diesel 6-speed manual AWD

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. 

Return to top

2010 Audi A4 4dr Wagon

supercharged 333hp 3.0L V6 6-speed manual AWD

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 

Return to top

2010 Audi A4 4dr Sedan

turbocharged 240hp 3.0L V6 Diesel 7-speed automated manual AWD

Audi A4 in Sweden
Apr 2012 - Mar 2013
Mar 2013

39060 mi
air intake valve keyless entry sensor 

Return to top

2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

Audi A4 in Missouri, United States
Jan 2015 - Jun 2018
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. 
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. 

Return to top

2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 7-speed automated manual AWD

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 

Return to top

2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in California, United States
Jan 2018 - Jun 2018
Feb 2018

105000 mi

US $96
Replaced rear led lights. 
Audi A4 in Washington, United States
Apr 2010 - Jul 2018
May 2018

54000 mi

US $900
Replaced leaky water pump 
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 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 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 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 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 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 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 Pennsylvania, United States
Nov 2013 - Mar 2017
Jan 2014

55000 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 - Sep 2018
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. 
Audi A4 in Kansas, United States
Feb 2012 - Jun 2018
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 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 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 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 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 Pennsylvania, United States
Mar 2010 - Jun 2011
Aug 2010

6000 mi
Low speed shimmy 
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 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. 
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 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 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 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 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 Illinois, United States
Oct 2009 - Aug 2016
Aug 2016

41000 mi

US $350
battery replacement 

Return to top

2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

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 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 Ontario, Canada
Jun 2015 - Jun 2016
Jun 2016

79980 mi

C $100
warranty to replace rings and pistons 
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 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 Missouri, United States
Nov 2009 - Jun 2018
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 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 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 Texas, United States
May 2010 - Jan 2011
Nov 2010

17300 mi
oil leakeage, seal 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 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 Georgia, United States
Jan 2012 - Apr 2012
Mar 2012

38000 mi
Oil consumption test & manufacturer repair. 
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 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 Newfoundland / Lab., Canada
Dec 2011 - Dec 2013
Jan 2012

16700 mi
Wheel bearing 
Mar 2013

22320 mi
Replaced the steering column 
Sep 2013

27900 mi
seal had to be replaced 

Return to top

2010 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

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. 

Return to top

2010 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

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 California, United States
Apr 2013 - Jun 2016
Oct 2015

53300 mi
Car overheat. Thermostat stuck open. Replaced thermostat. 
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 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 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 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 Missouri, United States
Mar 2010 - Apr 2015
Sep 2010

17000 mi
Door sensor.  
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 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 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 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 New Jersey, United States
Oct 2009 - Jan 2011
Apr 2010

6000 mi
Transmission failure. Mechatronics unit replaced. 
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 Manitoba, Canada
Jun 2012 - Jun 2018
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 
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
Dec 2012 - Jan 2013
Jan 2013 bad valves 
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 Virginia, United States
Dec 2011 - Dec 2012
Dec 2012

21000 mi
Error light Transmission malfunction, whole unit replaced 
Audi A4 in Pennsylvania, United States
May 2012 - Jun 2012
Jun 2012

10000 mi
The Convenience Key System Failed 
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 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. 
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 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 Arizona, United States
Sep 2010 - May 2014
May 2011

7000 mi
Thermostat replacement.  
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 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 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 Arizona, United States
Jul 2010 - Mar 2016
Sep 2014

41000 mi

US $1200
Thermostat failed stuck closed causing engine overheating 
Audi A4 in Georgia, United States
Dec 2013 - Jun 2018
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 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 Michigan, United States
Apr 2010 - Aug 2013
Oct 2010

3000 mi

US $40
adjust headlights 
Jan 2011

6700 mi
Rattle in dash. Flaw in paint. 
Audi A4 in Ohio, United States
May 2010 - Jun 2018
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
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 

Return to top

2010 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

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 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 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 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 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 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 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 Maryland, United States
Nov 2011 - Jun 2017
Dec 2011

45000 mi
TSB: Hood switch.  MMI reported wrong oil level. 
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 Ontario, Canada
Dec 2013 - Jun 2018
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 
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 Pennsylvania, United States
Feb 2011 - Jul 2016
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. 
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 

Return to top

2010 Audi A4 / S4

Engine not specified

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. 

Return to top

2010 Audi A4 / S4 4-door

supercharged 6-cylinder automatic AWD

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 

Return to top

2009 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 7-speed automated manual AWD

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. 

Return to top

2009 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

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 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 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 Alberta, Canada
Apr 2009 - Jul 2017
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 Ohio, United States
Nov 2010 - Jun 2018
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. 
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 Massachusetts, United States
Jun 2011 - Sep 2017
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

78200 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. 
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 New York, United States
Jan 2013 - May 2018
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 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 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 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 California, United States
Jun 2017 - Jul 2018
Jul 2018

145000 mi

US $560
Wheel bearing replaced 
Audi A4 in New York, United States
Nov 2009 - Jan 2015
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 
Audi A4 in Connecticut, United States
Jul 2017 - Sep 2018
Aug 2017

138000 mi

US $6500
Timing chain and tensioner. New intake valves, machine head, new intake camshaft. Oil change, coolant flush 
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 Michigan, United States
Nov 2014 - Sep 2018
May 2018

142000 mi

US $30
Replaced the display screen 
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 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 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 California, United States
Feb 2011 - Apr 2011
Mar 2011

42000 mi
Faulty turbo boost Diverter Valve. Repaired under warranty. 
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. 
Audi A4 in California, United States
Aug 2014 - Jul 2015
Mar 2014

39000 mi
Rear hatch motor malfunctioned. Replaced under warranty. 
Audi A4 in California, United States
Jan 2009 - Mar 2010
Apr 2009

7000 mi
Sunroof water leakage. Sunroof cassette and headliner replaced 

Return to top

2009 Audi A4 4dr Wagon

supercharged 333hp 3.0L V6 7-speed automated manual AWD

Audi A4 in Norway
Sep 2015 - Jul 2017
Oct 2016

66220 mi

$400
Battery worn out, time and wear 

Return to top

2009 Audi A4 4dr Wagon

supercharged 333hp 3.0L V6 6-speed manual AWD

Audi A4 in Great Britain
Sep 2014 - Feb 2017
Apr 2016

119200 mi

£420
Clutch Master and Slave cylinders replaced. 

Return to top

2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

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 2018
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
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 Michigan, United States
Mar 2013 - Jun 2018
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 
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
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. 
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
Mar 2009 - Mar 2010
Aug 2009

7000 mi
back right open/close window button comes loose and pops out 
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 California, United States
May 2016 - Dec 2016
Jun 2016

50000 mi
Oil leak. 2 Coolant leaks. 
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 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 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. 

Return to top

2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in Ontario, Canada
Jan 2009 - Jun 2011
Jul 2010

17980 mi
replaced driver's seat due to leather wear 
Audi A4 in Washington, United States
Dec 2008 - Apr 2011
Mar 2011

23000 mi
Door locks failed and were repaired 
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 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 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 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 Arkansas, United States
Oct 2010 - Jun 2011
Nov 2010

30000 mi
TPMS sensor on one wheel bad. 
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 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 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 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 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 Colorado, United States
Aug 2008 - Sep 2011
Sep 2011

32000 mi
Replaced "camshaft adjuster-in ELSA" under warranty 
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 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

22000 mi
Replaced drivers door handle due to internal short for keyless access. 
Audi A4 in Maryland, United States
Jan 2009 - Jun 2018
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. 
Audi A4 in Missouri, United States
Jun 2009 - Jun 2014
Oct 2012

63000 mi

US $107
water pump replaced. 
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 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 Kansas, United States
Aug 2009 - Apr 2011
Sep 2009

5000 mi
Tires were never adjusted from shipping pressure of 50 psi. 
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 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 California, United States
Feb 2009 - Mar 2010
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 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 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 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 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 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 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 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 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 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 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 Wyoming, United States
Dec 2012 - Jun 2018
Jan 2014 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 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 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 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 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 Georgia, United States
Jul 2016 - Apr 2017
Oct 2016

108800 mi

US $7000
Engine Replacement: catastrophic failure due to tensioner failing 
Audi A4 in Iowa, United States
Jun 2011 - Jul 2018
Jan 2015

82500 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 Georgia, United States
Oct 2013 - Dec 2016
Jul 2016

116700 mi
Alternator. 
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
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 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 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 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 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 Alberta, Canada
Jan 2013 - Jun 2018
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 
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 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 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 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 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 Ontario, Canada
Feb 2011 - Oct 2015
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 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 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 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 Alabama, United States
Jul 2010 - Dec 2014
Nov 2012

30900 mi
Low speed stutter in steering. Hose replaced. 
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 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. 
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. 

Return to top

2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual FWD

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. 

Return to top

2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

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 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 Kentucky, United States
May 2012 - Jan 2015
Jan 2015

97000 mi

US $2500
Crack in water pump. Alternator burned out. 
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 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 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 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 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. 
Audi A4 in Colorado, United States
May 2009 - Jul 2012
Sep 2011

27000 mi

US $45
updated variable valve system 
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. 

Return to top

2009 Audi A4 4dr Sedan

turbocharged 143hp 2.0L I4 Diesel 6-speed manual FWD

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 

Return to top

2009 Audi A4 4dr Sedan

265-horsepower 3.2L V6 6-speed shiftable automatic AWD

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 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 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 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 Maryland, United States
Jun 2011 - Jul 2018
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 
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 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 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 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 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 Alberta, Canada
Jun 2011 - Oct 2014
Oct 2014

97340 mi

C $4000
Fuel injectors plugged. 7 hours of Audi labour + parts = CDN$3300! 

Return to top

2009 Audi A4 2dr Convertible

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

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. 

Return to top

2009 Audi A4 2dr Convertible

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in Florida, United States
Mar 2011 - Nov 2017
Nov 2013

26100 mi

US $252
Convertible top motor replaced 
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. 

Return to top

2009 Audi A4 2dr Convertible

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

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 

Return to top

2009 Audi A4 / S4

turbocharged 4-cylinder diesel manual 2WD

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. 

Return to top

2009 Audi A4 / S4

turbocharged 4-cylinder CVT 2WD

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. 

Return to top

2009 Audi A4 / S4

Engine not specified

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. 

Return to top

See TrueDelta's information for all Sedans, Wagons, and Convertibles.
See TrueDelta's information for all Audi models.

2012 Audi A4 / S4 Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2012 Audi A4 / S4 problems occur, check out our car reliability stats.