2015 Audi A6 / S6 Audi A6 / S6 2015

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2015 Audi A6 / S6 repairs by problem area

Engine (14%)

Transmission and Drivetrain (0%)

Brakes and Traction Control (5%)

Suspension and Steering (14%)

Electrical and Air Conditioning (52%)

Paint, Rust, Leaks, Rattles, and Trim (14%)

Other (0%)

Chart based on 21 repairs.
See TSBs and recalls for the 2015 Audi A6 / S6.

2015 Audi A6 / S6 repair cost distribution

$2500+ (0%)

$1000 - $2499 (13%)

$500 - $999 (0%)

$100 - $499 (20%)

< $100 (67%)

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

Chart based on 15 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2015 Audi A6 / S6 4dr Wagon

turbocharged 190hp 2.0L I4 Diesel 7-speed automated manual FWD

Audi A6 / S6 in Ireland
May 2017 - Jul 2018
Sep 2017

83700 mi
Matrix headlamp was malfunctioning, auto dim did not work 
Jun 2018

103540 mi

€300
Boost pressure sensor was replaced and software updated. 

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2015 Audi A6 / S6 4dr Sedan

turbocharged 420hp 4.0L V8 7-speed automated manual AWD

Audi A6 / S6 in Ontario, Canada
Mar 2016 - Sep 2018
Dec 2016

11780 mi
Sensor for external thermometer needs replacement. LED light in door handle not working. Buzzing from centre dash speaker. 
Apr 2017

12400 mi
Buzzing front centre speaker. Not fixed. They replaced the speaker but it appears to be caused the vibration from lower notes when playing music. 
Jun 2017

15500 mi

C $359
Centre speaker/HVAC grill on centre of dash was vibrating 
Mar 2018

21080 mi
Rattle from rear right. 
Jun 2018

22320 mi

C $1700
In addition to the maintenance tuneup, there was a rattle/squeak from the rear right side of the car that they tried to diagnose and repair but did not do successfully. 

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2015 Audi A6 / S6 4dr Sedan

turbocharged 240hp 3.0L V6 Diesel 8-speed shiftable automatic AWD

Audi A6 / S6 in New York, United States
Jul 2014 - Jul 2019
Dec 2014

6000 mi
Water entered one of the rear light units requiring that it be replaced 
Apr 2017

52000 mi
Drivers side mirror motor was replaced because the mirror could no longer be adjusted horizontally. 
Jul 2017

57000 mi
The ACC (automatic cruise control), lane departure, cameras, etc., stopped working. Problem was driver's door open/close switch. Replaced. Problem solved. 
Sep 2017

62000 mi
Dealer replaced the right rear wheel bearing under warranty 
Jul 2019

95000 mi

US $1200
Replaced both motor mounts 
Audi A6 / S6 in Nevada, United States
Sep 2015 - Sep 2017
Oct 2015 Air bag sensor failure 
Aug 2016

5600 mi
Electronic systems hard drive failure. System software upgrade was attempted but was unsuccessful. Hard drive replaced. 
Audi A6 / S6 in Ontario, Canada
Jan 2015 - Mar 2016
Mar 2016

33480 mi

C $85
The ACC (automatic cruise control), lane departure, cameras, etc., intermittently not working. Problem located to driver's door open/close switch. Replaced. Problem solved. 

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2015 Audi A6 / S6 4dr Sedan

turbocharged 220hp 2.0L I4 8-speed shiftable automatic AWD

Audi A6 / S6 in Minnesota, United States
Aug 2017 - Jun 2018
Sep 2017

20000 mi
Both front wheel bearings repaired under factory warranty to eliminate a noise. TSB 2042603/1 
Jun 2018

29000 mi
Driver's side folding mirror motor failer 

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2015 Audi A6 / S6 4dr Sedan

supercharged 310hp 3.0L V6 8-speed shiftable automatic AWD

Audi A6 / S6 in New Jersey, United States
Sep 2014 - Jun 2016
Jul 2015

8300 mi
Wheel bearing was bad - replaced under warranty 
Audi A6 / S6 in New York, United States
Oct 2014 - Sep 2017
Dec 2015

12000 mi

US $185
Check engine light 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 420hp 4.0L V8 7-speed automated manual AWD

Audi A6 / S6 in Saudi Arabia
Apr 2014 - Mar 2019
Mar 2014

27900 mi

﷼1000
Audi S6 Turbocharger Oil Leak / fixed at dealer still leaked again despite the new part of gasket and o ring 
May 2017

33480 mi

﷼2000
MMI freezes on source option no cd working /no entertainment cable function. The only thing working is the radio . Checked with Audi warranty didn't cover and was required to change the whole MMI front unite . 
Feb 2018

40 mi

﷼4000
joints and wheel bearing 
Feb 2019

51460 mi

﷼9000
1- Transmision fluid was changed @?????? 40K. KM. 2-experienced the last 5 days a slight jerk when reaching to a full stop as if someone is bumping you from the back. 3- Drove today normal driving parked the car and got in, restarted the car and hit R - NO reverse got a light " Transmission Malfunction No Reverse Gear, Continue Driving" 4- continued driving for 10 km shifting between 1-3-5-7 . 5- next light comes up - transmission overheating- and i can smell the trans fluid burning. 6- continued a bit then stopped and called a toe truck. 
Audi A6 / S6 in Michigan, United States
Jul 2013 - Dec 2015
Aug 2013 Got a message that I could not drive the car over 4,000 RPMs due to Heat Soak 
Jan 2015 Replace harmonic balancer 
Audi A6 / S6 in Maryland, United States
Nov 2016 - Feb 2018
May 2017

17000 mi
Required kit rebuild of mechatronics unit. 
Oct 2017

22000 mi
Knocking sound from front right of suspension going in and out driveways, speed bumps, etc. Replaced both wishbone control arms. 
Audi A6 / S6 in Maryland, United States
Jul 2014 - Jul 2016
May 2015

11300 mi
Three buzzes in dash/sunroof addressed, none fixed. Center dash speaker assy replaced under TSB, still rattles when using car for Bluetooth phone reception as before. 
Aug 2015

15000 mi
Still not fixed after another attempt during routine service visit ... three buzzes in dash/sunroof addressed, none fixed. 
May 2016

25000 mi
Car returned multiple times for "cannot duplicate" or both control arm replacements, ultimately entire right front strut assembly replaced as car would knock or snap on turning into driveway, parking garage inclines, etc. Was progressive ... 
Jun 2016

26000 mi
Right-side surround-view camera (integral to mirror) replaced due to failure 
Jul 2016

26000 mi
Sunroof developed loose internal part that rattled loudly when open to comfort position, became much louder as speed increased. Could not diagnose. Sounded like a leaf, but louder and no leaf found. 
Audi A6 / S6 in Kansas, United States
Jul 2017 - Jun 2018
May 2018

52000 mi

US $75
Replaced motor mount 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 240hp 3.0L V6 Diesel 8-speed shiftable automatic AWD

Audi A6 / S6 in Pennsylvania, United States
Jun 2013 - Jun 2018
Nov 2016

50100 mi
Steering wheel made whining noice when turning at low speed. 
Feb 2018

68 mi
Emissions compliance modification 
Audi A6 / S6 in North Carolina, United States
Dec 2013 - Jan 2019
Jun 2014

10000 mi
Check engine, Glow plug warning light and particulate system warnings. Software update fixed problems. 
Mar 2016

45000 mi
Back up camera quit working 
Apr 2018

82000 mi

US $2000
Noise coming from rearend. worn Parts replaced 
Audi A6 / S6 in Alabama, United States
Nov 2014 - Jun 2018
Jun 2015

31000 mi
While driving at 65mph the sunroof exploded. The shade was closed so no glass hit the occupants but it made a very loud noise. Audi replaced the sunroof at no charge citing "customer goodwill" as the reason for making the repair for free. 
Oct 2016

49300 mi
Air circulation fan in the dash board started making a very slight scraping noise. It wasn't very loud but the A6 is so quiet on the highway that I could hear the noise and after a while it became annoying. Audi replaced it at no charge. 
Audi A6 / S6 in Indiana, United States
Apr 2014 - Jun 2018
Dec 2017

31000 mi
Automatic Sop/Start stopped working. Automatic Stop/Start module/part replaced 
Audi A6 / S6 in Illinois, United States
Nov 2013 - Dec 2014
Mar 2014

3000 mi
Defective catalytic converter was finally identified as the cause for a check engine light. New part shipped from Germany. No issues since returned 
Audi A6 / S6 in Illinois, United States
Nov 2013 - Feb 2019
Dec 2017

63000 mi
tire pressure monitoring system 
Jun 2018

66000 mi
ACC light illuminated 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 220hp 2.0L I4 8-speed shiftable automatic AWD

Audi A6 / S6 in Rhode Island, United States
Nov 2013 - Jun 2015
Jun 2014

5000 mi
Fuel cap door would not close 
Audi A6 / S6 in New York, United States
Apr 2014 - May 2018
Jun 2014

2000 mi
Second trip to dealer to address harsh downshifting from 4th to 3rd and 3rd to 2nd. Unable to fix. They stated transmission has no fault codes and that the harsh shifting should go away as I continue to drive. 
Mar 2015

14000 mi

US $28
Blown ignition coil on cylinder #1 
Audi A6 / S6 in Pennsylvania, United States
Mar 2015 - Jun 2018
Sep 2017

41000 mi
Repaired malfunctioning backup camera. Had water in it. 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 180hp 2.0L I4 8-speed shiftable CVT FWD

Audi A6 / S6 in Indonesia
Jul 2017 - Jun 2018
Apr 2018

17360 mi

$150
Pressure Switch sensor replacement part # 4HO 959 126B 

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2014 Audi A6 / S6 4dr Sedan

turbocharged 177hp 2.0L I4 Diesel 8-speed shiftable CVT FWD

Audi A6 / S6 in India
Nov 2014 - Mar 2018
Jun 2017

4526 mi
Replaced front LHS wishbone Replaced LHS wishbone and earlier, control arm replaced but noise still persists 
Jan 2018

5580 mi
The vehicle has been sent several times to the workshop for rectification of sound from front right suspension without any results. Dealer continues to say there is not issue, whereas, the repairs were unsuccessful. 

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2014 Audi A6 / S6 4dr Sedan

supercharged 310hp 3.0L V6 8-speed shiftable automatic AWD

Audi A6 / S6 in Alabama, United States
Dec 2013 - Jun 2018
Apr 2014

1300 mi
Stiff steering. At 70 mph difficult to maintain lane control. Requires excessive force on steering wheel. Causes forearms to be sore after a two hour trip. Most cars can be controlled with one finger which requires less awareness of effort. 
Sep 2015

9000 mi
Stop-Start system does not function properly. Dealer does not recognize it as problem. 
Sep 2016

12000 mi
Stop-start system issue still not resolved. Engine does not always stop. When it does stop, the drive train does not always engage immediately. Sometimes three or four seconds to engage. Abrupt start occurs. 
Nov 2017

17000 mi
Engine restart system still not functioning properly. Nothing done to repair it. VERY dissatisfied with this dealer. Will never go back, especially since warranty expired. 
Audi A6 / S6 in California, United States
Jun 2014 - Dec 2017
Dec 2017

41000 mi
Car began shuttering/vibrating when braking (just like back at 9,000 miles when dealer replaced brakes/rotors under warranty). Was told pads still had 50% life left, but rotors needed replacing. Complained to dealer. Told to call Audi. Told the same thing. Then emailed Dealer Service Manager with all receipts and recent inspection report. Told to bring car back in. On inspection, only right front rotor was "scoring". Dealer replaced both front rotors and pads - No charge 
Audi A6 / S6 in Texas, United States
Dec 2013 - Apr 2016
Sep 2014

5000 mi
Pressure switch faulty and replaced under warranty 
Audi A6 / S6 in Colorado, United States
Nov 2014 - Mar 2018
Jun 2017

46000 mi

US $450
new pads all around and new front rotors 
Audi A6 / S6 in Georgia, United States
May 2014 - Dec 2016
Jun 2014

6000 mi
There was a faint fluttering noise that occured when driving over 45mph. Audi had one of their long standing mechanics ride with me until we heard it. He immediately figured out what the issue was, a wheel bearing, and had it fixed within 24 hours. 
Jun 2015

16000 mi
Distant train whistle sound coming from vent when A/C was on. 
Aug 2015

17100 mi
fan makes a intermittent whining noise when A/C is on. 
Audi A6 / S6 in Maryland, United States
Sep 2014 - Jun 2018
May 2018

39000 mi

US $80
Replace oil pressure sensor. Check engine was coming on after letting up on accelerator following hard acceleration. 
Audi A6 / S6 in New Jersey, United States
Dec 2016 - Aug 2017
Jan 2017

32000 mi

US $523
an error light came on stating that the lane changing system was in-operable. The dealer said that the sensors can get out of alignment. about 4 hours of labor to fix. 
Audi A6 / S6 in Maryland, United States
Dec 2013 - Dec 2017
Dec 2014

26000 mi
Intermittent cruse control issue 
Sep 2017

85000 mi

US $1200
Rotors warmed AGAIN. 

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2013 Audi A6 / S6

Engine not specified

Audi A6 / S6 in Tennessee, United States
Jul 2013 - Jan 2014
Jan 2014

15000 mi
MMI update to fix sound and functionality issues. Squeaky steering column 
Audi A6 / S6 in Connecticut, United States
Dec 2016 - Dec 2017
Jun 2017

41000 mi
Vent drain 

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2013 Audi A6 / S6 4dr Wagon

204-horsepower 2.8L V6 7-speed automated manual AWD

Audi A6 / S6 in New Zealand
Aug 2016 - Sep 2018
Jun 2017

49600 mi
Hard drive failure prevented Satnav and the 'media' link from booting up. Radio and car selections worked fine. Replaced free of charge under a third party warranty 

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2013 Audi A6 / S6 4dr Sedan

turbocharged 420hp 4.0L V8 7-speed automated manual AWD

Audi A6 / S6 in Georgia, United States
Sep 2012 - Jun 2018
Oct 2013

12700 mi
Low power, rough engine, flashing check engine light. Problem gone after restart of engine. Dealer claims ECM software update fixes the fault codes found (exhaust cam position). Check engine light from a fault code from the secondary air injection system. Dealer performed vacuum test (requires removal of the front bumpber) and found a cracked T-fitting. Replacement of part fixed the issue. 
Feb 2015

25000 mi
Black residue on turbos where coolant lines are connected -- lines replaced per TSB 
Mar 2015

25000 mi
Installed TSB2035235/2 to address throttle lag that occurs while reapplying throttle immediately after braking. 
Jun 2015

28000 mi
Intermittent image failure from backup camera. 
Aug 2015

28900 mi
Engine occasionally will stall after fuel fill up. Dealer was not able to replicate the problem. 
Aug 2016

36000 mi

US $1400
Valve in oil separator failed causing a very loud high pitched whistle. 
Sep 2016

37000 mi

US $1500
Enginee stall after filling tank while car was hot. Problem traced to bad N80 valve and also required replacement of charcoal canister which was full of raw fuel. 
Audi A6 / S6 in New Jersey, United States
Feb 2013 - Apr 2014
Sep 2013

5000 mi
There was a campaign update. 
Audi A6 / S6 in Kansas, United States
Feb 2014 - Sep 2015
Mar 2014

22000 mi
coolant leak at turbo rumble noise in rear shock mounts 
May 2014

24000 mi
poor radio quality 
Sep 2014

29000 mi
a/c quit working suddenly. The failure was a high pressure switch, which was replaced fixing the problem 
Audi A6 / S6 in Florida, United States
Feb 2014 - Sep 2016
Apr 2014

4500 mi
Replace charge air cooling pump V188 due to internal short, which blew a fuse and took several engine sensors offline. Took a week to diagnose, order parts, and install. Also did 5,000 mile service. 
Nov 2014

15000 mi
Small coolant leak repaired at the left (driver's side) turbocharger. Known issue that required the line and seal to be replaced with updated parts. 
Feb 2015

19000 mi
Underhood plastic trim panel came loose, making the hood difficult to latch easily. 
Sep 2015

28000 mi
Driver's seat frame broken (again) allowing seat to rock back and forth 
Nov 2015

33000 mi
Small coolant return hose to expansion tank developed 3 small cracks, causing a small coolant leak. Replacement hose ordered & installed. 
Audi A6 / S6 in Illinois, United States
May 2015 - Dec 2018
Mar 2016

50000 mi
Exhaust flap motor failed 
Aug 2017

67000 mi
PCV valve replaced 
Audi A6 / S6 in New York, United States
Jan 2017 - Sep 2019
Jan 2019

49000 mi
Plastic cowling by hood latch was loose and was replaced by same. 
Sep 2019

52000 mi

US $2250
Both turbo failed Audi covered 75% of out of warranty repair due to know issue of oil check valve and filter screen causing oil flow starvation to turbos 
Audi A6 / S6 in Pennsylvania, United States
Apr 2014 - Dec 2019
Nov 2014

20000 mi
Coolant leak on line going into right hand turbo. Apparently a common issue with 4.0T V8s. Dealer replaced coolant lines and seals for both turbos. Issue has been resolved. 
May 2015

27900 mi
Occasional hesitation in acceleration. I suspected it was related to a flash for the DSG, but the dealer replaced some of the ignition coils. 
Jul 2017

58000 mi
Adaptive cruise control would deactivate after a few minutes of driving. Dealer advised that a wire was loose, so there was no charge for the repair. 

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2013 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in Georgia, United States
Apr 2013 - Oct 2016
May 2013 Horn activated on its own while driving 
Audi A6 / S6 in Maryland, United States
Mar 2013 - Jan 2016
Nov 2013

9000 mi
TSB for steering issue 
Audi A6 / S6 in New Jersey, United States
May 2013 - Apr 2014
Oct 2013

5700 mi
Heat worked intermittently. Sometimes would not come on for very long time (over 20 minutes). 
Audi A6 / S6 in Tennessee, United States
Aug 2017 - Jun 2018
Jan 2018

34500 mi

US $518
Front upper control arm bushings were cracked. Bushings replaced. Inspection found a problem with fuel door lock actuator. Declined repair. 
Audi A6 / S6 in New York, United States
Feb 2014 - Jun 2018
Nov 2015

16000 mi
Hood light stayed on. Door locks were out of sync. 
Audi A6 / S6 in Ontario, Canada
Apr 2013 - Jun 2018
Apr 2014

4540 mi
TSB Steering TSB Engine software update Not enough bass in Bose system. Found TSB to flash the amp. 

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2013 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in Trinidad and Tobago
Jan 2017 - Jun 2018
Aug 2017

55323 mi
Routine maintenance service 
Feb 2018

59520 mi

$850
Water pump failed and had to be replaced. 

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2013 Audi A6 / S6 4dr Sedan

supercharged 310hp 3.0L V6 8-speed shiftable automatic AWD

Audi A6 / S6 in Virginia, United States
Aug 2015 - Dec 2017
Oct 2015

33000 mi
Had a bad motor on passenger side  also heated steering wheel won't get warm 
Oct 2017

69158 mi

US $800
Intercooler radiator Coolant leak water pump 
Audi A6 / S6 in Idaho, United States
Jul 2013 - Mar 2015
Apr 2014

10300 mi
Bluetooth MMI issues, update performed. Still having issues. 
Jan 2015

6000 mi
Continued issues with NAV and bluetooth. GPS wouldn't lock. Had bad MMI system. Replaced with 2014 MY MMI system. 
Audi A6 / S6 in British Columbia, Canada
Jun 2013 - Jun 2018
Jul 2013

4960 mi
Heads up Display (HUD) stops working when dashboard is hot from car being parked in sun. Starts working again when car cools down. At same time automatic headlights turn on even though daytime out. Headlights also turn off when dasj cools. 
Aug 2013

5960 mi
Return trip to fix heads up display and auto headlights not working when car parked with dash in the sun. Start working after car runs for around 15 min and AC cools. Dealer response is that behavior is normal. Third trip regarding HUD and auto headlights. Dealer investigating cause further. No resolution, but promised has been escalated from Audi Tech to Product Support. 
Sep 2013

6820 mi
Dealer wanted car brought in when HUD and auto headlights were actiing up to take measurements. Replicated problem, took measurements, but still have no resolution. 
Oct 2013

7720 mi
Ordered and installed a light and moisture sensor, which fixed the problem with the HUD and automatic headlights. 
Feb 2014

13500 mi
MMI system (Nav, Radio, Telephone) crashes when ever search for a contact when using iPhone 5s. After around 30 seconds restarts again. Nav / Audio / Phone system received firm ware upgrade to address problem with Bluetooth phone address book when using Iphone 5S 
May 2014

18600 mi
Vent in rear b-pillar has louvers closed, and louvers will not open. Replaced rear vent on passenger side B pillar 
Sep 2014

23560 mi
LED strip (turn signal) in the driver's side mirror failed. 
Mar 2016

44640 mi
Dealer caused issue. After new tires installed, steering wheel vibrated between 65 and 75 mph. Dealer rebalanced tires, resolved issue. 
Jun 2018

79050 mi

C $400
Gas filler door would not unlock. Required replacement of the filler door lock actuator, and also replacement of the filler neck skirt. 
Audi A6 / S6 in Illinois, United States
Feb 2014 - Mar 2018
Mar 2014

25000 mi
Bose sound system needed repair, sound was substandard quality. 
Jun 2014

32000 mi
TSB 2034439/2 Intercooler radiator protection grill / shield 
Aug 2015

61000 mi
Replaced SIM Card firmware due to TMobile Hardware change 
Aug 2016

78600 mi
Check engine light, Catalytic converter malfunction. Performed ECM Software level update. 
Jan 2018

105000 mi

US $1650
Road debris damage of supercharger radiator. Replaced, and flush and fill radiator. There was a TSB from Audi 4 years ago (TSB 2034439/2) that identified the potential for a rock to enter through the tiny slits (2”) in the base of the A6 grill. They then provided a free plastic inside intercooler radiator cover to try an prevent the damage. I received that TSB. However it was not enough to prevent this from occurring. Arguably it could be considered a design issue. I am annoyed that even after getting the TSB, I still got the issue and had to pay $1600 for the repair. 
Audi A6 / S6 in Nevada, United States
May 2014 - Jun 2017
Jun 2014

17000 mi
Squeaky Steering column. 
Feb 2015

21500 mi
About 20% of the time Gas Cap cover will not open. Replaced Actuator. Driver's Arm rest would not stay in selected raised-position. Hinge mechanism replaced 
Audi A6 / S6 in Florida, United States
Jan 2015 - Jun 2016
Jun 2016

45000 mi
Very loud waterfall noise in dashboard 
Audi A6 / S6 in New Jersey, United States
Nov 2014 - Jun 2018
Apr 2016

29300 mi
LED's in drivers side mirror for turn signal stopped working. A red indicator light on dash signified a problem. 
Apr 2018

42000 mi
Recall for possible fuel leak. Repaired. Made appointment a month in advance. Dropped car off the day before. Not repaired until the day after the scheduled appointment. 
Audi A6 / S6 in Illinois, United States
Jun 2015 - Jun 2018
Jul 2015

49500 mi
battery was discovered to be faulty, replaced under warranty durring inspection and service. 
Sep 2016

56000 mi
AC was not cold. Unknown part replaced 
Audi A6 / S6 in Tennessee, United States
Apr 2013 - Dec 2014
Jan 2014

21200 mi
Needs a new license plate bracket. Screw fell off inside bumper, very hard to get to. Poor design. Dealer had to order it. Repairs will require a return trip. 
Audi A6 / S6 in California, United States
Jan 2017 - Jul 2018
Jan 2018

81300 mi

US $85
Saw two codes flash on secondary device, P2006 & P2007, which means there is a vacuum leak. Supercharger was removed to replace thermostat, mechanic may have left an air leak in the system to cause code and engine check light. Update: Turns out the dealership when they put it back together they crossed the vacuum lines on cylinder banks one and two, thus the check engine light. When they tore into it a second time they discovered their mistake and made the correction.  Coolant temperature climbed as thermostat became stuck closed. Thermostat replaced, check engine light came on as I was leaving the dealership. Replaced by dealer under CPO warranty. Otherwise $1000. 
Jul 2018

94000 mi

US $85
control arm bushings were worn out and replaced, right & left side front, and left side rear. 
Audi A6 / S6 in Florida, United States
Aug 2012 - May 2016
Oct 2012

1500 mi
Radiator leak 
Nov 2013

18300 mi
Pressure switch 
Audi A6 / S6 in Minnesota, United States
Feb 2013 - Jun 2018
Oct 2013

4200 mi
Main MMI knob next to shifter would scroll but not respond when pushed to make a selection. MMI was replaced at no charge. 
Audi A6 / S6 in California, United States
Jun 2012 - Jul 2015
Sep 2012

2000 mi
parking sensor failure seat and glove compartment rattles 
Jan 2013

12700 mi
Jerky 2-1 downshift upon acceleration. 
Jun 2014

18000 mi
GPS antenna not working around view cameras showed skewed images adaptive cruise control worked sporadically, would turn off at times. Braking guard would do same. navigation screen chattering when opening/closing 
Jan 2015

7300 mi
Rattles on door and rear shelf 
Jul 2015

25000 mi
Rattles never fixed. Sporadic failure of blind spot assist (it would turn off by itself) 
Audi A6 / S6 in New York, United States
Feb 2013 - Feb 2015
Aug 2013

6000 mi
Electronic steering makes loud grinding noise when turning the wheel in any direction. 
Mar 2014

15000 mi
Steering boot inside car needed replacement because of continuous squealing noise. 
Audi A6 / S6 in Washington, United States
Sep 2012 - Jul 2018
Jan 2013 Homelink system failed 
Jul 2014

30000 mi
Motor for driver side folding mirror failed. Dealer replaced motor. 
Jan 2016

22200 mi

US $1000
Check engine light, emission problem. 
Sep 2017

71000 mi
Fuel system recall 
Dec 2017

79000 mi

US $2000
Replace all pads and rotors 
Audi A6 / S6 in Colorado, United States
May 2013 - Apr 2017
Jul 2013

3800 mi
Engine light came on and caused rough engine performance. Reset after off/on cycle. Dealer replaced vacuum pump based on Audi reco. All work under warranty. 
Sep 2014

22000 mi
Updated Mmi to resolve poor sound quality 
Audi A6 / S6 in Colorado, United States
Nov 2012 - Dec 2017
Jul 2013

13500 mi
Downshift from 2nd to 1st gear rough. Software upgrade fix. Change behavior after car has been driven and then stopped with a door being opened. Action switched from car full stop and automatically applying brake TO car remains running and brake needs to be manually applied when desired. 
Mar 2014

26000 mi
Intercooler Radiator leaked from small rock damage through front grill 
Dec 2016

64000 mi

US $410
ECP light came on and car went into limp mode (restricted to <=3800RPM). They just reset the computer. MMI kept rebooting at random times. 
Sep 2017

74000 mi

US $900
New pads 

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2012 Audi A6 / S6

Engine not specified

Audi A6 / S6 in California, United States
Dec 2014 - Oct 2015
Jan 2015 backup camera wont engage sometime 
Oct 2015

57000 mi
thermostat replacement under warranty 

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2012 Audi A6 / S6 4dr Wagon

turbocharged 245hp 3.0L V6 Diesel 7-speed automated manual AWD

Audi A6 / S6 in Great Britain
Dec 2012 - Apr 2013
Jan 2013 Knocking noise from front suspension or trim. Dealer failed to sort the fault. 

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2012 Audi A6 / S6 4dr Wagon

turbocharged 204hp 3.0L V6 Diesel 7-speed automated manual AWD

Audi A6 / S6 in Norway
Feb 2013 - Jul 2018
May 2013

17980 mi
Had to exchange an electrical relay component that prevented the central locking from opening the fuel tank lid. Could not refuel. 

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2012 Audi A6 / S6 4dr Sedan

turbocharged 245hp 3.0L V6 Diesel 7-speed automated manual AWD

Audi A6 / S6 in Poland
Mar 2015 - Apr 2017
Nov 2015

83260 mi

$1200
Wishbone oil stabilizer leak. Noises when driving on harsh surfaces. 
Jul 2016

99780 mi

$200
Intermittent jerking while changing lower gears. Fix: software upgrade, reset to base settings, scheduled change of transmission fluid. 
Audi A6 / S6 in Great Britain
May 2012 - Jun 2018
Sep 2012

11000 mi
Both speakers replaced and door rattles fixed 
Dec 2012

16000 mi
Xeon n/s headlamp unit replaced 
Aug 2013

27000 mi
Rear sensors did not work. one sensor point defective causing system to fail 

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2012 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in Arkansas, United States
Feb 2016 - Dec 2016
Apr 2016

79200 mi

US $345
Mmi and nav update and upgrade pcv. Programmed a key 
Audi A6 / S6 in New Jersey, United States
Nov 2012 - Dec 2015
Dec 2012

22000 mi
Final drive of CVT was defective and the entire CVT was replaced under warranty. Symptoms included grinding noise when steering wheel was held off center(variable degrees) and card allowed to move slowly, the noise could be heard. Sunroof inoperative. Switch defective. 
May 2013

30900 mi
Water leak into the interior of the car, past the seals around the front door speakers. Water that gets past the glass window bottom seal would go into the door and then leak past the speaker seal, into the interior of the car. 
Feb 2014

45600 mi

US $50
Fuel filler door failed to open. Had to replace the fuel filler flap actuator with a revised part. Bought the part myself and replaced it based on instructions obtained online. Problem has since been resolved. 
Audi A6 / S6 in Florida, United States
May 2014 - Jun 2018
Jun 2015

32000 mi
AC not blowing cold at all. Malfunction of AC pressure switch G395. TSB# 2020124/12. Replaced with revised part 4H0-959-126-A 
Jan 2016 The diaphragm in the crankcase pressure regulating valve that was replaced last time was not sealing properly, causing hard start, rough idle, almost stalling, MIL. Entire valve replaced. 
Audi A6 / S6 in California, United States
Feb 2013 - Jun 2016
Nov 2014

29700 mi
Breather valve(pressure regulating valve) was not working right, removed and reinstalled 
Jul 2015

36300 mi
Sunroof wouldn't close Windshield washer nozzle inoperative AC was blowing hot air; AC pressure/temperature switch replaced 

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2012 Audi A6 / S6 4dr Sedan

turbocharged 204hp 3.0L V6 Diesel 7-speed automated manual AWD

Audi A6 / S6 in Czech Republic
May 2013 - Jun 2013
Jun 2013

25420 mi
Unstable steering, drifting to the left or to the rigt Can not set the Temperature, heating too much at the Winter, too much air blow noise from driving rod, part replaced 

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2012 Audi A6 / S6 4dr Sedan

supercharged 310hp 3.0L V6 8-speed shiftable automatic AWD

Audi A6 / S6 in Washington, United States
Jul 2014 - Jun 2018
Dec 2015

28000 mi
Replaced battery--in service for 4 years 
Aug 2016

32600 mi
Steering angle sensor failed, took out ESP and Adaptive Cruise Cotrol 
Audi A6 / S6 in Illinois, United States
Sep 2012 - Jun 2018
Feb 2014

26000 mi
The passenger airbag off light was on even with a passenger in the seat. The whole seat was replaced. Replaced front passenger seat pod air bag light 
Apr 2015

41500 mi
replace right rear speaker replace crankcase breather valve 
Jun 2017

64000 mi

US $795
Replace mechatronic, repair wring harness 
Mar 2018

73000 mi
Recall to replace fuel line 
Audi A6 / S6 in California, United States
Mar 2014 - Jun 2014
Jun 2014

51000 mi
Water pump went out 
Audi A6 / S6 in Ontario, Canada
Jun 2012 - Jun 2016
Aug 2012

1984 mi
Noise from catalytic converter at around 1800 rpm. Faulty converter was replaced. 
Jul 2015

16320 mi
Intermittent folding side mirror failure (would not fold/unfold). Short in control module was diagnosed after 2 trips. Module replaced. 
Audi A6 / S6 in California, United States
Oct 2013 - Dec 2015
Feb 2015

16000 mi
Car would not build any power when I hit the gas pedal. Poor acceleration from a stop. 
Audi A6 / S6 in California, United States
Dec 2012 - Apr 2017
May 2013

9100 mi
Engine management indicated car was overheating (it was not).  
Aug 2013

14100 mi
Could not open glove box door. Dealer replaced the glove box latch and lock. Driver's side sun visor was loose. Dealer replaced son visor 
Sep 2014

33000 mi
With A/C on - blowing hot air. High pressure sensor failed dealer replaced. When the drivers side sun visor is deployed it will creep down blocking vision. Visor replaced. This is the 2nd time the visor has been replaced. 
Oct 2015

50500 mi
Engine overheated thermostat defective. Replaced thermostat. 
Audi A6 / S6 in California, United States
Dec 2011 - Apr 2014
Aug 2012

14000 mi
Audi Lane Change Assist would sporadically turn off due to an intermittent short in the light indicator located in the driver side side mirror assy. 
Apr 2013

22800 mi
Vertical motor for tilt function of steering failed. Steering column replaced. 
Apr 2014

41000 mi
Overheating occurred caused by a bad thermostat. Coolant pump replaced as a precaution. Center support for driveshaft failed. 
Audi A6 / S6 in California, United States
Sep 2011 - Oct 2016
Aug 2014

36000 mi
Temp was running high. Thermostat replaced. 
Mar 2016

56000 mi

US $250
Took into for scheduled maintenance and said water pump leaking. Replaced with extended warranty. $250 deductible. Engine brackets cracked. Replaced brackets. 
Audi A6 / S6 in Ontario, Canada
Aug 2011 - Sep 2014
Jun 2012

9920 mi
Sound system went off for the 2nd time 
Aug 2013

25420 mi
The passenger side mirror folded and would not unfold. 
Mar 2014

29760 mi
Failure led to a cut in an electrical harness. Delay was 2 days for part delivery. 
Audi A6 / S6 in Maine, United States
Feb 2012 - Jun 2020
Feb 2015

34000 mi
Replace PCV valve, update engine management software for oil consumption. 
Mar 2015

35000 mi
Replace right front bearing assembly 
Jun 2017

62000 mi

US $177
A/C recharge 
Sep 2017

65000 mi

US $900
Replaced front rotors, pads, brake linings. 
Mar 2018

69000 mi
Replaced fuel line under recall. 
Oct 2018

74000 mi

US $750
Hangers [for exhaust] 
Audi A6 / S6 in Massachusetts, United States
Apr 2012 - Sep 2014
Sep 2014

50000 mi
Nav frequently failing and resetting. Notching when turning the steering wheel. 
Audi A6 / S6 in Massachusetts, United States
Aug 2014 - Jun 2018
Dec 2014

48000 mi
Control arm clunking, needed replacement. Wind noise from left rear door. Weather stripping replaced which largely resolved issue. 
Jun 2015

56000 mi

US $85
Faulty oil pressure switch causing code, replaced. 
Sep 2016

76000 mi

US $508
Front suspension control arm was clunking, replaced. Headlight control module showed error code, was replaced. Took several days to diagnose and get part. 
May 2017

88000 mi
Vacuum pump at front of engine leaking oil onto coolant crossover pipe caused seals to fail, resulting in loss of coolant. Passenger front seat heat not reconnected properly after earlier work. 
Audi A6 / S6 in Colorado, United States
Nov 2012 - Jun 2018
Dec 2012

6000 mi
Tire Pressure Monitoring System: I had a flat while driving and the TPMS did not make an alert. 
Aug 2014

20000 mi
The electric steering column was making noise as it descended. The dealer wound up replacing the entire column as just lubing it did not get rid of the noise. 
Sep 2014

21000 mi
The adaptive cruise control was reacting/braking for cars that had moved into the left turn lane ahead. 
Oct 2015

29300 mi
Driver sun visor wouldn't stay in position and was replaced under warranty. 
Jul 2016

35300 mi
Left visor would sag back down when pushed up. It would not hold its position. 
Dec 2016

38000 mi
The sagging driver side visor was"fixed" again. This time they may have finally fixed it. We will see as they do not try to adjust it, they only replace parts. The center console cup holder cover was not working. It was replaced and seems to be working well again. Left rear door rattles when closed,EVERYTIME!! Even though the service adviser could hear it when I brought it in, the tech and service manager said that they could not hear or reproduce it! What crap. Another bad service from Audi Denver 
Nov 2017

45000 mi

US $200
I had the car in for its scheduled maintenance. They noted that the water pump was leaking so i had them fix while it was in. They are supposed to do many checks during this major maintenance service. Sadly Audi Denver dropped the ball here. The battery was supposed to be checked, but less than two weeks later I had to replace the battery. 
Feb 2018

48000 mi

US $1200
The front brakes were down to metal on metal. Sensors never indicated that they were low. 
Apr 2018

49000 mi

US $400
Rear pads worn. This time sensor warning came on. 
Jun 2018

50000 mi

US $1200
The supercharger intercooler got a leak, possibly from a rock flying up into it and caused a dramatic leak. 
Audi A6 / S6 in California, United States
Sep 2012 - Jul 2014
Dec 2012

17000 mi
Replaced motor on the passenger side mirror for fold-in functionality. 
Feb 2014

30800 mi
Overheated. Thermostat replaced under warranty 
Jul 2014

35000 mi
EVAP Small leak. Replaced valve or solenoid. 
Audi A6 / S6 in Illinois, United States
May 2013 - Jun 2013
Jun 2013

23000 mi
cylinder compression 
Audi A6 / S6 in New York, United States
Mar 2015 - Jun 2018
Mar 2016

51000 mi
Check engine light, code P2753, Transmission Fluid Cooler Control Circuit/Open. Replaced valve, repaired wiring harness, replaced connector. 
Jun 2018

81000 mi

US $350
A/C Pressure sensor failure. Replaced, system evacuated, recharged and leak tested. Repair listed for ~$500, had $150 coupon which was nice. 
Audi A6 / S6 in Alabama, United States
Sep 2016 - Sep 2018
Sep 2017

76000 mi

US $500
Trans fliud didn’t have replacement bolts 
Dec 2017

82000 mi

US $800
Water pump 
Audi A6 / S6 in
Mar 2001 - Jan 2017
Sep 2012

56391 mi
Fuel pump replacement 
Audi A6 / S6 in Pennsylvania, United States
Jan 2017 - Jun 2018
Feb 2017

50000 mi

US $99
EMISSIONS EVAP LEAK 
Jun 2017

52000 mi

US $300
rear brakes 
May 2018

57000 mi
[A/C] DID NOT REPAIR IT AS NOW. 
Audi A6 / S6 in Missouri, United States
Mar 2016 - Jun 2018
Jul 2016

52300 mi
had fuel door actuator replaced 
May 2017

61000 mi
front lower control arms to resolve clunk I had the motor replaced for the info screen that sometimes hung up. 
Audi A6 / S6 in Pennsylvania, United States
Sep 2016 - Feb 2018
Jan 2018

74000 mi

US $900
Cracks were discovered in the inner lower control arm bushings and would not pass state inspection. We opted to replace all lower and upper control arm bushings while the repair was being performed. 
Audi A6 / S6 in Connecticut, United States
Dec 2014 - Jun 2018
Dec 2017

66000 mi

US $3000
Front & Rear Pads & Rotors Leaking & Cracked Motor Mounts (2) 
Mar 2018

70000 mi
Needed to have both front and rear rotors replaced after 3000 miles - Defective parts that were replaced previously in Dec 2017. No cost to me... 
Audi A6 / S6 in Nevada, United States
Apr 2013 - Jun 2020
Dec 2018

51000 mi

US $1700
Rear brake pads 
Audi A6 / S6 in Wyoming, United States
Oct 2016 - Sep 2018
Mar 2018

67000 mi

US $200
Transmission cooler valve replaced. $105 for the valve and $87 for labor. 
Sep 2018

73000 mi

US $250
Premature failure of front upper control arm bushings. Replaced all front upper control arms. 
Audi A6 / S6 in Michigan, United States
Dec 2011 - Jun 2018
Feb 2012

2000 mi
Misaligned bumper in RR shock tower. Symptom audible thump on road bumps. Originally thought it was loose item in trunk. Noticed immediately post-delivery. Dealer identified, disassembled and reassembled. Problem resolved. 
May 2012

6000 mi
Windshield washer fluid reservoir found to be leaking shortly after delivery. Waited until 5K service to address issue. Dealer determined it was not properly seated. Removed, inspected and reinstalled. All A-OK now. 
Jul 2012

9000 mi
This is a continuation of a previously-reported issue with the windshield/headlamp/radar washer system previously reported. The reservoir leaked on delivery and the problem reappeared. A pump, coupling and bracket were needed to fix leak. 
Dec 2012

15000 mi
Update of computer plus 15K scheduled maintenance and installation of winter wheel/tire package. 
Dec 2013

26000 mi
Driver side door lock sensors inoperative. Dealer suggested it might be due to car wash. Working on pax side. Still not working on departure. In for routine 25K maintenance. I forgot to tell dealer about inop right side mirror retract. 
May 2014

29000 mi
Driver side mirror would not fold back HomeLink system offline. Garage door button non-functional. Turned out to be loose ground wire in A pillar. 
Nov 2015

43700 mi
Rt side mirror wouldn't retract to fold back position). Stuck in non-fully extended position. Couldn't adjust driver side view. Needed motor replacement. Not in stock, so took car home. Dealer picked up following week/repaired/returned. 
Jun 2017

59000 mi

US $100
Audi MMI - Multi Media Interface. Unit had erratic operation/ Controls would lock up, retractable screen would go blank and/or close and open intermittently, phone would lose pairing. Affected radio, satellite radio, navigation, phone and jukebox. 
Jan 2018

62750 mi
Garage door link stopped functioning. Repair postponed. Will return in 2nd quarter. Discovered after reviewing service records that this problem resulted from improper repair 5 years ago on nearby wiring. 
May 2018

64000 mi

US $100
Garage door opener failed. Dealer found bad splice in wiring from PREVIOUS dealer repair from several years ago. Said it was "out of warranty" even though they had done the bad splice. I used my Audi extended warranty, which covered all but the $100 deductible on this $650 repair. 
Audi A6 / S6 in California, United States
Dec 2015 - Jun 2018
Jan 2017

78000 mi
One catalytic converts broke but was still under warranty 
Sep 2017

87000 mi
85K service was completed and they noted one broken and one cracked motor mount. 
Feb 2018

92300 mi
Replaced two motor mounts. I bought the car with 67k miles and is my first Audi so I bought a warranty (not from the dealer) and motor mounts are covered. 
Apr 2018

95000 mi

US $1250
Less than 3mm on front brake pads so replaced pads, rotors, and flushed and replaced brake fluid. 
Audi A6 / S6 in New Hampshire, United States
Dec 2015 - Sep 2018
Aug 2016

44000 mi
Epc light turned on and limited rpm to 4000. Dealer checked and replaced an oil pressure switch. 
Audi A6 / S6 in Virginia, United States
Apr 2015 - Dec 2017
Dec 2015

57000 mi
One of the parking sensors failed 
Dec 2017

89000 mi

US $1300
Water pump was failing, replaced water pump. Pads were worn, replaced pads and rotor 
Audi A6 / S6 in New Jersey, United States
Mar 2015 - Jul 2017
Jun 2015

32000 mi
Issues with blind spot sensors shutting down in heavy traffic, misc. MMI freezes, etc. Dealer updated MMI software. 
Audi A6 / S6 in Texas, United States
Feb 2015 - Jun 2018
Feb 2016

67000 mi
Transmission control module software update 
Apr 2017

98000 mi

US $2000
brakes unevenly worn; bad install reported; new pads and rotors placed 
Audi A6 / S6 in North Carolina, United States
Nov 2014 - Jul 2017
Oct 2016

74000 mi

US $399
valve cover gaskets had to be replaced due to a leak. 
Audi A6 / S6 in Pennsylvania, United States
Aug 2015 - Nov 2017
Jan 2016

36500 mi
Glove box lock replaced. 
Jun 2016

41000 mi
Sunroof making squeak noise when opening /closing. MMI knob peeling. 
Apr 2017

52500 mi

US $85
The timing chain rattled very loudly on cold starts for well over two minutes. On hard starts it would rattle for about thirty seconds. There is a TSB to correct this issue and resulted in the timing chain tensioners being replaced. 
Nov 2017

56000 mi

US $500
Audi Atlanta damaged exhaust components after trying to repair another issue they created. This occurred multiple times. I finally took the car to Audi Marietta to fix all the problems caused by Audi Atlanta. 
Audi A6 / S6 in Ontario, Canada
May 2015 - Apr 2017
Sep 2015

15500 mi
MMI connection problems with telephones. Moonroof creaks and grinds 
Feb 2016

15500 mi
Scheduled Maintenance. Ashtray cover broken. MMI screen does not come out occasionally. Ashtray cover replacement. 
Mar 2016

15500 mi
Exhaust Rattle from flex pipes. 
May 2016

16700 mi
MMI Screen motor/carrier caused screen to hang or not come out at all. 
Dec 2016

30096 mi
Fuel Pump recall, dealership damaged fuel lines so gas was leaking. Repaired under warranty had to wait for fuel line. 
Audi A6 / S6 in Utah, United States
Aug 2016 - Sep 2018
Nov 2016

65700 mi

US $300
gas cap lock would not unlock 
Jun 2017

78000 mi

US $150
both front wheel bearings replaced 
Sep 2017

76000 mi

US $1300
When idling the ac would not stay cold, they found a fuse and the AC fan needed replaced 
Dec 2017

80000 mi

US $300
Painted calipers and replaced pads with EBC red pads 
May 2018

82000 mi
Front left wheel bearing needed replaced, it was less then a year since the last replacement so it was covered by the dealership 
Sep 2018

86000 mi

US $100
wheel bearing went out again a recall item failed that was giving me a couple warning lights intermittenly, one was that my side detection sensors were not working properly. I cannot remember the other warning light, but the dealership determined it was a airbag harness that was recalled and replaced a while ago had failed so they covered replacing that 
Audi A6 / S6 in New Jersey, United States
Dec 2014 - Jul 2018
Oct 2014

20000 mi
Glove box was inoperable - could not be opened. Replaced glove box 
Dec 2014

21000 mi
Replaced right rear shock 
Jan 2018

41000 mi
Hood latch wasn't working - needed lubrication. 
Audi A6 / S6 in North Carolina, United States
Sep 2015 - Aug 2018
Dec 2015

36000 mi
The F module failed and caused problems with Nav, Audio 
Jun 2016

37000 mi
The iPod was not loading into the MMI. Software update. Repair complete. 
Audi A6 / S6 in New York, United States
Sep 2014 - Jun 2018
Sep 2015

67000 mi

US $86
passenger side mirror motor needed to be replaced. 
Apr 2016

89000 mi

US $53
Rear view mirror came off and the O-ring needed to be replaced so it would snap on properly and stay secure. 
Jul 2016

97000 mi

US $85
Engine light on and was covered under extended warranty. $85 deductible. Replaced sensor, but light now back on. Had brakes done but that was normal wear.  
Mar 2017

123000 mi

US $700
They said the motor mounts were bad. One had leaked completely and the other one is leaking. Total to fix was $1600. I said thanks but no thanks at this time as I do not notice any vibrations. Will shop this repair around as i think I can get it for cheaper than at the dealer. 
Jun 2017

133000 mi

US $825
Catalytic converter snapped off from engine. It was a clean break therefore the shop was able to weld it back together. Saved about $1,000. Part alone was going to be 950. According to dealer this happens quite often which begs the question why the hell Audi doesn't do something about it. 
Jul 2017

135000 mi

US $1200
Engine mounts on both sides were leaking so I had them replaced at a cost of 1200. Dealer wanted 1600. 
Aug 2017

137000 mi

US $150
Car is jerky in gears 1-3. Took it to my guy and then to the dealer. Both said it needed a new transmission. Tried the software adjustments to no avail. Second Audi, Second transmission issue. Once I'm done with this car I am never buying another audi again. 
Jan 2018

149000 mi

US $1300
Brakes, normal wear and tear. 

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2015 Audi A6 / S6 Repair Histories

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