2011 Audi A4 / S4 Audi A4 / S4 2011

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2011 Audi A4 / S4 repairs by problem area

Engine (44%)

Transmission and Drivetrain (15%)

Brakes and Traction Control (4%)

Suspension and Steering (6%)

Electrical and Air Conditioning (20%)

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

Other (2%)

Chart based on 309 repairs.
See TSBs and recalls for the 2011 Audi A4 / S4.

2011 Audi A4 / S4 repair cost distribution

$2500+ (4%)

$1000 - $2499 (12%)

$500 - $999 (15%)

$100 - $499 (18%)

< $100 (50%)

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

Chart based on 185 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2011 Audi A4 4dr Wagon

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

Audi A4 in Washington, United States
Mar 2011 - Jun 2022
Jul 2013

30000 mi
Stage 1 fix for oil consumption (1 quart per 2000 miles). Replaced PCV and crank seals. Updated ECU. 
Nov 2013

35000 mi
Transmission software update for jerkiness in stop and go traffic. Rear window washer nozzle clogged. 
Jun 2014

41000 mi
Transmission shifting hard at random times. Dealer performed a transmission adaptation (no mechanical repairs). 
Jul 2017

78000 mi

US $150
Stage 2 fix for oil consumption (1 quart per 900 miles). Replaced pistons. 
Jul 2021

104000 mi

US $300
Replaced fuel injectors due to misfiring. 
Audi A4 in 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
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 Utah, United States
Apr 2011 - Jan 2022
Mar 2012

15000 mi
Air conditioning had very bad "dirty socks" smell due to mold / midew growth during winter season. 
Mar 2014

45000 mi

US $25
Sun roof would open but chattered when closing and at times would not close. This has been a repetitive problem. Musty, moldy smell from AC. Sprayed Lysol into AC air intake and replaced cabin AC filter. Seems to be a yearly springtime ritual. 
Dec 2017

73000 mi
Oil consumption test started on 21 Dec 2017. 
Mar 2018

77000 mi

US $400
Failed oil consumption - rebuild bottom end of engine - pistons, bearings, rings, timeing chain and chain tensioner - In addition new plugs and coil packs, 
Apr 2018

77000 mi

US $1005
Left front wheel bearing failure, aligned all four wheels and calibrated backup camera 
May 2021

98000 mi

US $800
New Brakes and Rotors Front and Rear 
Audi A4 in Washington, United States
May 2011 - Jun 2022
Jun 2011

1000 mi

US $500
Parking lot rash from another car--dealer repaired/repainted, then installed clear bra as planned. 
Jun 2013

15000 mi
Audio system had surge, then intermittently lost turn signal audio cue. Dealer found no faults on diagnostics or overnight. No recurrence. 
Sep 2016

37000 mi
Crankcase breather/vent valve and crank seal replaced under warranty for oil consumption recall/testing program. Car undergoing oil consumption test. 
Audi A4 in California, United States
Feb 2011 - Jan 2018
Sep 2011

5000 mi
problem with software for backup cam; TSB exists, but no fix yet; dealer will notify when fix is found. 
Mar 2012

11000 mi
Malfunctioning backup camera, but only happens once every 2-4 weeks. 
Nov 2013

29000 mi
Backup camera failure. Camera unit and cables replaced. 
Sep 2014

40000 mi
CEL came on. Replaced leaking PCV valve. 
Feb 2015

43000 mi
Backup cam not working. Replaced cam and data cable. 
May 2017

65000 mi

US $1300
Replaced engine mounts 
Dec 2017

73000 mi

US $622
MAF replaced 
Audi A4 in 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. 

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2011 Audi A4 4dr Sedan

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

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 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 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 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 - Jan 2021
Dec 2014

101000 mi

US $550
Oil consumption issue, replaced PCV valve and front crankshaft seal 
Mar 2015

103000 mi
Excessive Oil Consumption due to improper clearances. Replaced the pistons and piston rings. 
Audi A4 in 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 Alberta, Canada
Mar 2015 - Jun 2018
Jul 2016

67340 mi

C $1065
both front wheel bearings replaced 
Dec 2016

78120 mi
Previous bearing wore out and leaked grease. Replaced under warrenty 
Apr 2018

10807 mi

C $1021
replaced rear shocks 
Audi A4 in Massachusetts, United States
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 Kansas, United States
Apr 2018 - Oct 2021
May 2018

88000 mi
Headlight level sensor was broken, HID headlights pointed straight down while driving; Replaced sensor and headlights worked fine 
Jun 2018

90000 mi

US $150
AC blower motor died and was replaced Turbo was giving underboost and overboost codes; had classic loose wastegate issue; turbo was replaced 
Audi A4 in 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 Connecticut, United States
May 2014 - Jun 2016
Jun 2015

37000 mi
High oil consumption test part 1. 
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 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 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 California, United States
Mar 2011 - Jan 2016
Jan 2012

48300 mi
The rear door seals became unglued. This had previously happened (and was re-glued) @ 1000 miles. This time, the dealer decided to replace the door seals at no cost. 
Jun 2015

65000 mi

US $1000
Oil seal was leaking 
Audi A4 in 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 Iowa, United States
Oct 2010 - Jun 2015
Jan 2012

44000 mi

US $900
replaced wiper arm 
Audi A4 in Pennsylvania, United States
Oct 2010 - Jan 2014
Dec 2013

17000 mi
Engine was burning oil. 
Audi A4 in Iowa, United States
Sep 2010 - Jun 2017
Jan 2016

77300 mi

US $200
Misfire. Ignition coils replaced. 
Audi A4 in Illinois, United States
Aug 2010 - Jul 2023
Aug 2014

28500 mi
Excessive oil consumption. Needed to add a quart after roughly 1300 miles. Dealer agreed to perform Phase I oil consumption test (still under warranty). Replaced crankcase valve seal and updated software. If doesn't work, Phase II is pistons and rings. 
Sep 2016

48000 mi
Oil consumption problem has worsened again - have driven only 2400 miles before needing another quart. Dealer performing additional tests to determine next steps. Need to return to dealer after 1000 miles to measure consumption. 
Jan 2017

26800 mi
Continuing oil consumption issues. Dealer replaced pistons and rings at no cost. 
Feb 2022

78000 mi

US $450
Replaced leaking valve cover gaskets and lower oil switch 
Audi A4 in 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 North Carolina, United States
Oct 2010 - Jun 2022
Nov 2012

16200 mi
Car burns oil. Dealer replaced several parts and asked us to come back after 600 miles for inspection. 
Feb 2013

16900 mi
Still burning oil, dealer installed new rings. Seems to have worked. The digital oil level sensor seems to be flaky now, but all else is ok. Once the sensor dies, dealer will replace.  
Audi A4 in Michigan, United States
Nov 2010 - Jul 2022
Dec 2011

14000 mi
Key fob replaced for inability to operate door locks. 
Jun 2014

49000 mi
Delay in shifting, and throttle application - and trans hunting or waiting to find a gear. 
Jun 2018

94000 mi

US $15
charged AC with a can of refrigerant. 
Dec 2021

108000 mi

US $150
New Front Rotors 
Jun 2022

110000 mi

US $250
Replace water pump, water pump belt and lower pump hose (as precaution) 

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2011 Audi A4 4dr Sedan

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

Audi A4 in Texas, United States
Aug 2015 - Jun 2022
Sep 2017

63000 mi

US $600
Replaced leaking rear main seal. 
Nov 2021

98000 mi

US $100
Replaced ignition coils and PCV rubber parts. 
Feb 2022

99000 mi

US $500
Replaced front struts due to age. I had abnormal tire wear that the tire shop said was due to the struts. 
Jun 2022

102000 mi

US $800
Leak of coolant from water pump 
Audi A4 in South Africa
Mar 2015 - Jul 2016
May 2016

72540 mi

R 2000
Replace faulty boot lock 
Audi A4 in Georgia, United States
Jan 2011 - Dec 2013
Jun 2011

7000 mi
Rough idle after cold start. Fixed per TSB. 

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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 Ohio, United States
Mar 2014 - Jul 2016
Mar 2016

97000 mi

US $100
Oil consumption issue 
Audi A4 in Michigan, United States
Nov 2010 - Sep 2016
Jan 2011

17300 mi
Audio was lost due to an amp/signal booster failure. Part had to be ordered from Germany, no time frame was provided for part availability. Part was received and installed. Symptom presented itself (audio cut out) on the drive home. I suspect this isn't the last time I'll have to deal with the audio issue. 
Feb 2013

20900 mi
Amp replaced to fix audio issue. 
Sep 2013

25000 mi
Failed water pump - slow leak. Installed: 06H121026CF water pumprnWHT006407 seal, 06H121131C union 
Sep 2014

33000 mi
Engine idled rough. Dealer replaced ignition coils under warranty 
Feb 2016

40000 mi

US $246
Mis-fire due to ignition coil failure. Failure was likely an infant mortality failure as all ignition coils were replaced in October 2014, which is approximately 11,000 miles ago. 
Audi A4 in District of Columbia, United States
Oct 2010 - Sep 2013
Nov 2010

700 mi
Electronic parking brake episodically difficult to release. Problem fixed. Window regulator was not working properly. Item fixed. Electronic parking brake episodically difficult to release. Problem fixed.  Window regulator was not working properly. Item fixed. 
Aug 2011

6000 mi
Window regulator not working well. Window sometimes closes right after opening. 
Sep 2011

6000 mi
Window regulator came in. Problem fixed. Sensor indicated low tire pressure when tires were properly inflated. Problem tracked to software. Fixed by reflash. 
Audi A4 in 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 Massachusetts, United States
Apr 2013 - Apr 2015
Feb 2014

27700 mi
Piston replacement due to high oil consumption. 
Audi A4 in Quebec, Canada
Mar 2011 - Apr 2015
Dec 2014

62620 mi

C $175
Ignition coil pack was faulty. Audi dealer had part in stock and replaced. 
Audi A4 in Manitoba, Canada
Jul 2011 - Jun 2022
Sep 2012

5580 mi
Blind spot warning system seems to be out of calibration. Dealer was unable to replicate problem. 
Audi A4 in Ontario, Canada
Aug 2010 - Oct 2016
Aug 2011

14260 mi
Occasional rough idle on start-up which would disappear after no more than 30 seconds. Dealer found trouble code and an existing TSB on the problem. Performed work which included an oil separator. 
Jul 2012

29420 mi
occasional pre-detonation sound (pinging) on acceleration; occasional slightly rough idle which can occur at any time (warm/cold). 
Feb 2013

41540 mi
knocking sound when accelerating e.g. 6th gear from 2,000 rpm. Happens intermittently. No codes. Used scope to look for carbon build up or leaking injector. Nothing found. Could not reproduce it again when measuring ignition timing. 
Mar 2013

44640 mi
Passenger side headlamp washer door hinge broken on one side causing the door not to close properly. Required a whole new bumper skin to repair! Took repeated visits to shop before Audi would agree to cover it under warranty. 
Jan 2016

29920 mi
Excessive oil consumption 
Oct 2016

89900 mi
Excessive oil consumption of 1 litre per 2000 km. Rebuilt engine with new pistons, rings, timing chain, timing chain tensioner, cam bridge. 
Audi A4 in Michigan, United States
Aug 2014 - Jun 2022
Feb 2017

123000 mi

US $623
Replaced rear strut assembly. One strut leaking badly. 
Feb 2021

152000 mi

US $8149
Vehicle was suffering from oil consumption. I decided to have it rebuilt with new pistons as well as water pump, timing chain, clutch, and related parts, seals, and fluids. Essentially a total engine overhaul. It is no longer losing oil. 
Audi A4 in 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 Tennessee, United States
Jul 2010 - Jun 2022
May 2011

14000 mi
Felt like engine missing (erratic car vibration at idle, stopped). Dealer pulled codes, said no misfire. Returned car, will monitor and take back when more pronounced. 
Sep 2013

46000 mi
Fuel cap failed pressure test during annual emissions inspection. Cap replaced. 
Jun 2014

53000 mi

US $110
Cylinder 4 misfires under heavy load. Check engine light came on. Replaced coils and spark plugs, fixed problem. 
Jun 2015

65000 mi
Check Engine light came on, diagnostic indicated something related to nonsense intake position reading. Removed/cleaned throttle body, reinstalled. Cleared CEL, no additional message after 2k miles. 
Mar 2016

71000 mi
Oil consumption jumped rather rapidly. Dealer replaced PCV as part of known issue. 
Apr 2016

71500 mi

US $300
Rough idle and acceleration. Opened up to do carbon cleaning on intake, and discovered intake manifold parts broken off and one blocking intake to cylinder 2. Cleaned carbon buildup and replaced intake manifold 
Jun 2016

74000 mi
Stage 2 repair performed for excessive oil consumption. Replaced pistons and all seals. I had a damaged intake manifold and wonder if the cylinder ingested part of the manifold, damaging a piston ring. 
Jun 2017

84000 mi

US $5
Had a slow oil leak from the back solenoid used to adjust the exhaust cam. Had Audi replace pistons under warranty per engine oil consumption TSB stage 2. Technician failed to install o-ring on one of the 8 solenoids, leading to a small oil leak. Had to completely clean engine compartment to find where it was coming from. Repair took 5 minutes once I found it. 
Mar 2018

90500 mi

US $140
Car had bad wheel noise and uneven tire wear - tire shop told me that the camber was off. Took to an alignment shop that specialized in German cars, and they indicated that the control arms have gone bad. Will have to replace control arms prior to alignment. Was quoted $2800 for the job... will attempt to do myself (parts are around $650). 
Jan 2022

126000 mi

US $225
Upholstery on headliner began sagging about 2 years ago. Found a replacement from a junkyard in good condition for $225. Was quoted $550 by local shops to fix it, so cheaper to just replace with used. 
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. 

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2011 Audi A4 4dr Sedan

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

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 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 Washington, United States
Sep 2011 - Jun 2022
Mar 2017

48000 mi

US $1200
Thermostat failure. Replaced with OEM part. Preemptive replacement of water pump and 45,000 maintenance performed as wel. 
Audi A4 in 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 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 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 Arizona, United States
Oct 2013 - Mar 2014
Mar 2014

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

55800 mi
Thermostat replace 
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 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 Wisconsin, United States
May 2013 - Jun 2022
Jun 2013

21000 mi
One strip of LED lights in the right rear turn signal failed. Replaced entire rear turn signal assembly. Part replaced under warranty. 
Oct 2013

25800 mi
Several warning lights came on: Rear Differential Warning Light, ESP Light, Dynamic Steering Light. Dealer unable to duplicate, and reset the warning lights. Recommended further investigation if lights came back on. Rear Sport Differential light came back on. Audi U.S. service techs found 1 of 3 oil temp sensors in rear differential was faulty. No problem with sensor, oil temp, or mechanicals. Updated algorithm code. Problem solved. 
Dec 2013

30000 mi
Dealer verified TSB and ordered parts, starting with new caliper slides and grease, then determined front brakes should be replaced due to pitting in the rotors. Replaced rotors, calipers, and pads in front, and grease in back. 2 visits. 
May 2014

35000 mi
The transmission often jerked between 1st & 2nd gear at slow speed. Replaced mechatronics unit and reprogrammed per TSB#2027363/3 and TACH#1255687. Problem resolved. 
Oct 2014

44500 mi
Low coolant level light. Found leaks in both radiators (regular & supercharger). Replaced radiators and installed protective grill. Repaired under warranty. 
Jun 2015

54000 mi

US $675
Replaced front wheel bearing, part number 4H0-498-625-A. Part was $362.17 plus 2.5 hrs labor. 
Audi A4 in Massachusetts, United States
Jul 2014 - Jan 2022
Jan 2016

39800 mi

US $85
Oil sensor indicated low oil - even after adding 1.5 quarts there was no change in the the dashboard indicator, the fault was in the sensor, and in fact the oil was completely full all along. 
Apr 2016

49300 mi
engine light indicated airflow issues - dealer found carbon build-up in secondary air intake. no misfires detected but covered under service bulletin extended warrantee 
Jul 2017

57000 mi

US $750
voltage regulator intermittent failure created over voltage errors for all systems, causing car to go into safe/limp mode. This took place after a minor rear end impact (jolt). Votage regulator replacement was done. 
Nov 2017

59000 mi

US $6000
Thermostat failure, resulted in car overheating initially intermittently, then continuously. This caused transmission failure due to electronics associated with mechatronics control unit for 7 speed DSG to fail. mechatronics unit replaced. Mechatronics unit failed due to thermostat failing in closed position, resulting in car overheating. No coolant loss was seen, this was entirely a thermostat failure. The resulting overheating caused electronics in the Mechatronics unit for the DSG to fail, putting the car into a limp mode where the transmission Reverse and Even gears were unavailable. Problem solved when mechatronics unit was replaced and the transmission reconfigured by the dealer. 
Audi A4 in Pennsylvania, United States
Jul 2014 - Jan 2017
Jul 2014

78000 mi

US $750
Mechatronic unit failure 
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 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 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 Washington, United States
May 2013 - Oct 2013
Sep 2013

26000 mi
Leaking fluid 
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 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 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 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 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 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 Illinois, United States
Jan 2011 - Apr 2015
Sep 2014

82000 mi

US $600
Thermostat failed and was replaced. 
Audi A4 in Ontario, Canada
Jun 2010 - Jun 2018
Nov 2014

72540 mi

C $700
Both sets of front bearings replaced 
Jun 2015

77500 mi

C $600
Leaking transmission seal discovered during transmission oil change. 2.5 hours of labour required + parts. 
Sep 2016

86800 mi

C $800
Replace oil pan (corner rust bubble) & repair incorrect work done by Audi dealer - for transmission oil change (the vehicle was bought to a garage specializing in Audis.). 
Dec 2016

89900 mi

C $4000
Seals on transmission failed. Transmission removed, seals and pump replaced. Underlying cause is speculative, but it may be that the dealer (who replaced the transmission fluid as part of scheduled maintenance) overfilled the transmission. Engine block seal failed, oil leaking from engine 
Audi A4 in 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 New York, United States
Feb 2011 - Oct 2012
Oct 2012

13000 mi
Rear axle leak; repaired under warranty. 
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 California, United States
Apr 2011 - Apr 2017
Jan 2014

17500 mi
While driving, coolant level warning came on and engine was overheating. Pulled over, towed car to dealership. Dealership noted "Thermostat was stuck closed" and replaced thermostat. 
May 2014

25000 mi
Started car, got the message "Gearbox malfunction, you may continue driving." Dealership replaced PCB on mechatronic unit. 
Jun 2014

26000 mi
Backup camera became dim, then intermittently stopped working. Wiring harness replaced. 
Feb 2015

29100 mi
Got low engine oil indicator. Dealer added 1L of oil, indicator remained. Diagnosis was a faulty hood contact switch. 
Dec 2015

35000 mi

US $185
Car wouldn't start. Jumpstarted by AAA, took to dealership, did diagnosis, found no problems. Car wouldn't start again when they brought it to me, was jumpstarted again. Has started fine ever since. 
Audi A4 in Washington, United States
Oct 2010 - Sep 2011
Jan 2011

5800 mi
Warning light came on for rear differential. Brought car in, they couldn't find any error codes logged. 
Audi A4 in 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 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 Washington, United States
Sep 2010 - Apr 2021
Feb 2011

1000 mi
Rain sensor and auto light sensor malfunction. This ultimately led to inability to turn on Side Assist as well. Apparently both problems fixed with new sensor. 
Apr 2015

25200 mi

US $100
Sudden shift to neutral from highway speed. Problem with DSG sensor (mechatronic unit) 
Sep 2015

28000 mi

US $100
Engine thermostat 
Apr 2018

35000 mi

US $3200
Adaptive Cruise Control module,  air conditioner valve 
Audi A4 in Ohio, United States
Sep 2010 - Apr 2018
Sep 2014

36000 mi
Door panel vibrating when certain radio frequencies were played. 
Audi A4 in British Columbia, Canada
Nov 2011 - Jun 2018
Nov 2013

19840 mi
Left rear Differential Seal leaking. Repaired under TSB# 2026049/8 Vehicle still under warranty. Would have cost $2600. TSB is for S4 and S5 with quattro sports rear differential. Re-re both rear coils. Replaced both drive axels. 
Jul 2016

29960 mi

C $902
Carbon build-up on Secondary Air ports (extended warranty). Leaking coolant return hose. Brake Fluid flush. 

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2011 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

Audi A4 in California, United States
Jan 2011 - Jun 2018
Nov 2015

52100 mi

US $800
Thermostat went bad again so engine was overheating. Second time since I owned the car. 
Audi A4 in Connecticut, United States
Nov 2012 - Jun 2022
Jun 2017

106000 mi
Rear rotors and pads 
Nov 2021

132000 mi

US $1800
Sport differential. Needed new sensor kit, new solenoids, and fluid. 
Audi A4 in New York, United States
Oct 2010 - Jun 2011
Nov 2010

850 mi
Clutch clicking and creaking not engaging correctly First time pin was replaced. Then car had very jerky shifting went in and out, defective pressure plate, replaced clutch. Clutch clicking and creaking not engaging correctly. 
Dec 2010

3000 mi
After that all was well, then I pushed the clutch down and it snapped and the pedal came up to the plastic under the steering column area. Replaced linkage pin again. 
Audi A4 in 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 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 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 Hampshire, United States
Feb 2011 - Dec 2015
Jun 2013

50000 mi
Bluetooth microphone replaced 
Audi A4 in New Mexico, United States
Jun 2011 - Sep 2011
Jul 2011

14000 mi
Gas vapor leak occurring during warm weather. Hard to replicate. Nauseating smell. 
Aug 2011

14000 mi
Gas vapor leak again. Replaced some parts that seem unrelated. I'll see if it continues. 
Audi A4 in New Jersey, United States
Mar 2014 - Jan 2022
Apr 2015

33300 mi
Passenger door pull broken 
Apr 2016

40300 mi
Thermostat broken. Caused overheating 
Audi A4 in New York, United States
Sep 2011 - May 2018
Dec 2016

34000 mi

US $250
Fluid leak on CV joint - could have been ignored. If it was under original warranty would have been repaired at no cost under Technical Service Bulletin 2026049. 
Audi A4 in Quebec, Canada
Aug 2010 - Dec 2013
Sep 2011

3720 mi
Weather seal on inside of rear right door jamb came loose, and would get stuck outside of closed door. Part ordered and replaced. 
Mar 2012

6820 mi
Odometer and extra info screen between speed and tach flickering. Loose wiring suspected. Due for final repair in April 
May 2012

7220 mi
Entire electrical module for the info display cluster was fried and required complete replacement. 
Jul 2013

11160 mi
Both headlight spray washer mechanisms extruded from the car and refuse to reintegrate back into their housing within the bumper. The problem was a defective spring mechanism. 
Dec 2013

11160 mi
Carbon buildup in the engine. 
Audi A4 in New Jersey, United States
Oct 2010 - Jun 2011
Nov 2010

1000 mi
Driver's window doesn't go up and down automaticly. Switch ordered. 
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 British Columbia, Canada
Feb 2016 - Jun 2022
Sep 2016

58900 mi

C $50
Thermostat failed on vehicle. Seems to be the only thing that goes wrong with this car. Otherwise it's been very reliable. 
Apr 2017

64480 mi

C $56
Sport differential seals were leaking. New seals installed covered under extended warranty. 

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2011 Audi A4 / S4

Engine not specified

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.  

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See TrueDelta's information for all Audi models.

2011 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 2011 Audi A4 / S4 problems occur, check out our car reliability stats.