Audi A6 / S6 Audi A6 / S6

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Audi A6 / S6 repairs by problem area

Engine (40%)

Transmission and Drivetrain (11%)

Brakes and Traction Control (5%)

Suspension and Steering (13%)

Electrical and Air Conditioning (21%)

Paint, Rust, Leaks, Rattles, and Trim (5%)

Other (5%)

Chart based on 2509 repairs.
See TSBs and recalls for the Audi A6 / S6.

Audi A6 / S6 repair cost distribution

$2500+ (6%)

$1000 - $2499 (17%)

$500 - $999 (18%)

$100 - $499 (33%)

< $100 (26%)

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

Chart based on 1564 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2017 Audi A6 / S6 4dr Sedan

turbocharged 450hp 4.0L V8 7-speed automated manual AWD

Audi A6 / S6 in Florida, United States
Jun 2017 - Dec 2019
Dec 2018

20000 mi
Power sunshade for rear window became very noisy at the ends of its travel (i.e. when almost completely deployed, or almost completely stowed). Sunshade unit (to include the shade itself and the motor) was replaced. 

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2017 Audi A6 / S6 4dr Sedan

supercharged 333hp 3.0L V6 8-speed shiftable automatic AWD

Audi A6 / S6 in California, United States
Jun 2017 - Jun 2018
Jun 2018

18500 mi

US $1000
Front rotors had groove in them. Shop attributed to possible rock having gotten stuck. 

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2016 Audi A6 / S6 4dr Sedan

turbocharged 450hp 4.0L V8 7-speed automated manual AWD

Audi A6 / S6 in Illinois, United States
Jun 2015 - Jan 2019
Mar 2017

12000 mi
Drivers side mirror will not retract in cold weather. Took to dealer they put it in warm shop for 3hrs before diagnosing and could not reproduce. Weather has warmed enough that the mirror works again 
Audi A6 / S6 in Saskatchewan, Canada
Aug 2015 - Dec 2017
May 2016

3600 mi
The S6 sill plate in the drivers door had a dent when delivered. The dealer ordered the replacement and installed when doing the 8000km maintenance. 
Audi A6 / S6 in Virginia, United States
Apr 2016 - Apr 2018
May 2016 Front parking sensor fogged over - electrical fault. 
Jun 2016

2000 mi
Creaking noise at low speed from steering wheel. Clock spring in steering wheel replaced and adjusted. Required 4 days to diagnose & an hour to repair at Audi of Arlington; Schmitt's Audi in Buffalo took 1 hour to diagnose. 
Feb 2018

6000 mi
Initially noticed parking cameras not displaying on MMI screen despite the distance sensors working (could hear beeping as approaching objects). Then, within a week, the battery was completely dead. Could not jump car from engine bay battery posts; car had to be jumped from battery under spare tire. 
Audi A6 / S6 in California, United States
Apr 2016 - Jun 2018
Apr 2017

5000 mi
Satelite antenna replace for GPS 

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2016 Audi A6 / S6 4dr Sedan

turbocharged 252hp 2.0L I4 8-speed shiftable automatic AWD

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

3300 mi
Fuel pressure sensor replacement 
Audi A6 / S6 in New Jersey, United States
Jul 2016 - Jun 2018
Oct 2016

21000 mi
Engine lost power, and made a lot of noise. Piston ring found in oil pan. Engine replaced under warranty. Reason given for replacement: piston failure. 
Jun 2017

34449 mi
Expansion tank and hose replaced under warranty. In shop for five days. 
Mar 2018

57000 mi

US $85
Starter failed while out driving. Wife had to drive almost an hour to pick me up. Starter was back ordered in Germany. 
Audi A6 / S6 in Florida, United States
May 2015 - May 2018
Aug 2017

24000 mi
Rotors had a factory defect that caused them to deform, creating vibrations during braking. This was a known issue but I was not contacted. When I had the vibration I came in and they informed this would not affect braking capability, but that they were authorized to replace the entire breaking system when the issue was reported. 
Audi A6 / S6 in Illinois, United States
Sep 2015 - Mar 2018
Mar 2018

21000 mi
camshaft timing adjuster failure. 
Audi A6 / S6 in Virginia, United States
May 2019 - Jul 2019
Jul 2019

38329 mi
Cup holder flap will not open properly. 
Audi A6 / S6 in Colorado, United States
Apr 2016 - Jun 2018
May 2018

13000 mi
Air bag light was on due to broken driver's seat belt buckle not working. It was replaced under warranty. 
Audi A6 / S6 in Ontario, Canada
Sep 2015 - May 2018
Mar 2018

31000 mi
right passenger grab handle replaced since return spring on original was shot 

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2016 Audi A6 / S6 4dr Sedan

turbocharged 252hp 2.0L I4 7-speed automated manual FWD

Audi A6 / S6 in California, United States
Jan 2016 - Sep 2016
Jul 2016

9200 mi
The nut in the bottom right of the license plate housing fell in. 

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2016 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in Arizona, United States
Apr 2015 - Sep 2019
Sep 2015

2000 mi
Diesel exhaust system cleaning was not occurring. Dealer installed a missing fuse which was missing from the factory and not caught during PDI. 
Sep 2019

34000 mi
Fuel flap on body was not unlocking consistently. 
Audi A6 / S6 in Florida, United States
Sep 2015 - Oct 2016
Oct 2016

21000 mi
Turbo had a failed seal 

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2016 Audi A6 / S6 4dr Sedan

turbocharged 190hp 1.8L I4 7-speed automated manual FWD

Audi A6 / S6 in Singapore
Apr 2016 - Jul 2018
Feb 2018

18600 mi
Thermostat 
Jul 2018

22320 mi
Rubbing noise every time I turn left 

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2016 Audi A6 / S6 4dr Sedan

supercharged 333hp 3.0L V6 8-speed shiftable automatic AWD

Audi A6 / S6 in Ohio, United States
Feb 2016 - Jun 2018
Apr 2016 MMI System was basically inoperative unless I hard rebooted the system 1-2 times every time I drove the car. 
Sep 2016

5000 mi
The cooled seats seemed inoperative 
Dec 2016

8000 mi
MMI had to be replaced 
Audi A6 / S6 in California, United States
Jun 2015 - Dec 2016
Nov 2015

1900 mi
Water leak from A/C soaked carpet and computer modules on floor. Required replacement of carpet, cleaning of mold, and exchange of computer modules. 
Jan 2016

2300 mi
Trim damaged during last repair had to be repaired. One piece of trim was glued instead of replaced. More trips. Rattle on sunroof and dash. Rear seat leather replaced due to bad appearance. Replaced leather seat had creases than required a further trip to fix. 
Apr 2016

4000 mi
Rattle on sunroof.  Broken trim on seat. 
Dec 2016

10000 mi
Sunroof rattle never fixed. 
Audi A6 / S6 in Texas, United States
Mar 2016 - Jun 2018
Dec 2017

24000 mi
Went for a oil change and found the thermostat was leaking repaired but took extra time 
Apr 2018

29000 mi
Had a leak on the water pump, second repair but this time they replaced brackets and a few other things 2000 miles later all seems good 
Audi A6 / S6 in Colorado, United States
Nov 2016 - Apr 2017
Jan 2017

8000 mi
Front rotors had hot spots. Rotors were replaced. 
Audi A6 / S6 in Illinois, United States
Jun 2016 - Jun 2018
Aug 2016 Knocking sound over bumps. Not identified or fixed. 
Audi A6 / S6 in Arizona, United States
Feb 2015 - Jun 2018
Jun 2018

32000 mi
2 front wheel bearings replaced 

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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 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. 
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 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 

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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 York, United States
Oct 2014 - Sep 2017
Dec 2015

12000 mi

US $185
Check engine light 
Audi A6 / S6 in New Jersey, United States
Sep 2014 - Jun 2016
Jul 2015

8300 mi
Wheel bearing was bad - replaced under warranty 

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2014 Audi A6 / S6 4dr Sedan

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

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

5000 mi
Fuel cap door would not close 

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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 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 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 Texas, United States
Dec 2013 - Apr 2016
Sep 2014

5000 mi
Pressure switch faulty and replaced under warranty 
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 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
Dec 2013 - Dec 2017
Dec 2014

26000 mi
Intermittent cruse control issue 
Sep 2017

85000 mi

US $1200
Rotors warmed AGAIN. 
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 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. 

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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 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. 
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 Jersey, United States
Feb 2013 - Apr 2014
Sep 2013

5000 mi
There was a campaign update. 
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 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. 

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2013 Audi A6 / S6 4dr Sedan

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

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 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. 
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 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 

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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 Florida, United States
Aug 2012 - May 2016
Oct 2012

1500 mi
Radiator leak 
Nov 2013

18300 mi
Pressure switch 
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 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 
Audi A6 / S6 in Washington, United States
Sep 2012 - Jul 2018
Jan 2013

15700 mi
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 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 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 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 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 Florida, United States
Jan 2015 - Jun 2016
Jun 2016

45000 mi
Very loud waterfall noise in dashboard 
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 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 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 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 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 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 Tennessee, United States
Apr 2013 - Dec 2014
Jan 2014

15300 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 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. 

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2012 Audi A6 4dr Wagon

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

Audi A6 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 4dr Wagon

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

Audi A6 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 4dr Sedan

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

Audi A6 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 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 4dr Sedan

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

Audi A6 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 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 
Audi A6 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

29500 mi
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 in Arkansas, United States
Feb 2016 - Dec 2016
Apr 2016

79200 mi

US $345
Mmi and nav update and upgrade pcv. Programmed a key 

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2012 Audi A6 4dr Sedan

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

Audi A6 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 4dr Sedan

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

Audi A6 in Illinois, United States
May 2013 - Jun 2013
Jun 2013

23000 mi
cylinder compression 
Audi A6 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 in California, United States
Mar 2014 - Jun 2014
Jun 2014

51000 mi
Water pump went out 
Audi A6 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 in
Mar 2001 - Jan 2017
Sep 2012

56391 mi
Fuel pump replacement 
Audi A6 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 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. 
Audi A6 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 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 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 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 in Nevada, United States
Apr 2013 - Jun 2019
Dec 2018

51000 mi

US $1700
Rear brake pads 
Audi A6 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 in California, United States
Dec 2014 - Oct 2015
Jan 2015 backup camera wont engage sometime 
Oct 2015

57000 mi
thermostat replacement under warranty 
Audi A6 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 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 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 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 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 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 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 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. 

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2011 Audi A6 / S6

Engine not specified

Audi A6 / S6 in Great Britain
Jun 2017 - Jul 2018
Jul 2018

126000 mi
intermittent power steering failure 

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2011 Audi A6 / S6 4dr Wagon

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

Audi A6 / S6 in Maine, United States
Jun 2017 - Jun 2018
Jan 2018

89000 mi
Car was purchased with new set of tires and an alignment. This was not completed by Audi dealer. shortly after delivery it was apparent that alignment was not correct - took to local audi dealer to realign. Since then all has been fine. 
May 2018

96000 mi

US $50
replaced rear hatch struts  and interior trim pieces. 

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2011 Audi A6 / S6 4dr Sedan

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

Audi A6 / S6 in California, United States
Jun 2014 - Jun 2018
Jul 2014

42000 mi
visor clip broke, it was replaced. 
Oct 2017

77000 mi
Back up camera would not come on when the car goes in reverse 
Audi A6 / S6 in Georgia, United States
- Feb 2015
Feb 2015

38000 mi

US $389
Thermostat and coolant hose failed/broke. Replaced under warranty. 
Audi A6 / S6 in California, United States
Aug 2017 - Sep 2018
Aug 2018

79000 mi

US $900
DS headlight cluster failure PAx front airbag replaced Failed seal on gas cap led to warning light intermittently illuminating 

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2010 Audi A6 / S6 4dr Wagon

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

Audi A6 / S6 in California, United States
Nov 2015 - Sep 2018
Dec 2015

82000 mi
Head gasket replacement. 
Aug 2018

98000 mi

US $500
Passenger airbag recall 95000 Major service 
Sep 2018

98000 mi

US $76
Replaced third brake light 
Audi A6 / S6 in Connecticut, United States
Sep 2016 - Jun 2018
Jun 2017

149500 mi

US $15
Since purchasing with approximately 143,000 miles, the engine has used a *lot* of oil, a quart every 670-900 miles(!) A mechanic friend suggested adding Seafoam to the engine oil, which I did for approximately 200 miles before changing the oil. We'll see if it helps. 
Sep 2017

151500 mi

US $400
Two (plastic!) coolant bleeder screws were broken and leaking near the supercharger. Had to be tapped out, remnants of plastic in threads removed, and new screws installed. After the repair, oil usage increased dramatically (1 qt every 200 miles or less!). Couldn't get back to shop to have them address for a few months, then went on a one-month long trip during which the car just sat. After sitting for that month, oil consumption has fallen to nearly 900 miles last time I checked. Quite bizarre! 
Apr 2018

156000 mi

US $2000
Car was hemorrhaging coolant from a gasket under supercharger. Had intake valves cleaned while the supercharger was off.  Access plug to left headlight was missing and allowed water to get in, destroying wiring and ballast, so used headlight assembly was installed. 
Audi A6 / S6 in Washington, United States
Oct 2014 - Mar 2017
Mar 2015

73000 mi

US $1000
replace faulty headlight assemblies due to extreme condensation build-up due resulting from wet weather conditions. 
Feb 2017

88000 mi

US $1500
Oil gasket leaks found in 2 places.  Turbo charger needed replacement. 
Audi A6 / S6 in Illinois, United States
May 2017 - Jun 2018
Jun 2018

70000 mi

US $93
The auxiliary radiator was leaking and had to be replaced. Checked cooling system for leaks, discovered pin hole leak in radiator. Pressure test cost $93. 

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2010 Audi A6 / S6 4dr Sedan

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

Audi A6 / S6 in Illinois, United States
May 2014 - Mar 2018
Apr 2015

50500 mi

US $500
Replaced battery 
Audi A6 / S6 in Virginia, United States
May 2014 - Jun 2018
Mar 2015

51000 mi

US $85
Passenger door not locking. Replaced the locking mechanism. 
Audi A6 / S6 in Virginia, United States
May 2014 - Jul 2017
Sep 2015

76000 mi

US $1800
Replace front struts 
Apr 2017

106000 mi

US $1900
Brake pads/rotors worn. About 50,000 miles since replacement 
Audi A6 / S6 in California, United States
May 2014 - Jun 2018
Jan 2017

55300 mi

US $1600
Broken cross pipe leading to thermostat malfunction. 
Audi A6 / S6 in New York, United States
- Feb 2013
Jan 2013

28500 mi

US $3000
Timing chain broke at 28,000 miles. Chain, tensioner, and several other parts of the engine had to be replaced. Repair took over one month as parts had to be ordered from Germany. Timing Chain Tensioner broke, had to replace timing chain, all tensioners and various other engine components. Repair took 30 days to finish because parts shortage Failed gasket near timing chain from repair. Several quarts of oil leaked all over my driveway. Transmission shifted hard as well. 
Feb 2013

30200 mi
Car was producing a raw gas smell in the cabin routinely. Mechanics could find now fault. Problem persists. Steering was making a clunking noise at low speeds. Audi made several adjustments the steering mechanisms over the course of 2 days until the noise went away. 
Audi A6 / S6 in Massachusetts, United States
Mar 2017 - Jun 2018
Feb 2018

80000 mi

US $600
The headlights are expensive on this. $350 alone for the bulb. It was the passenger side light so the entire air intake manifold has to disassembled to get to the bulb housing. While they were there they changed the air filter as well. 
Jun 2018

82000 mi

US $650
Faulty thermostat and line 
Audi A6 / S6 in New York, United States
- Aug 2010
Jun 2010

400 mi
Power steering hose ruptured and drained out all fluid; dealer replaced hose. Driver's seat was badly wrinkled at delivery; dealer agreed to replace; factory sent new cover; work done at local auto upholstery shop 
Audi A6 / S6 in Colorado, United States
Mar 2017 - Jun 2018
May 2017

73000 mi

US $500
Replace thermostat and water pump. 
Feb 2018

85000 mi

US $200
Replace battery 
Audi A6 / S6 in Illinois, United States
Nov 2016 - Sep 2017
Dec 2016

103000 mi

US $1700
During routine oil change oil leak was discovered in oil filter housing. Replaced valve cover gaskets, resealed upper timing chain covers, replaced oil filter housing, and intake gaskets. 
Audi A6 / S6 in New York, United States
Mar 2016 - Jun 2016
May 2016

67100 mi

US $4800
Cam tensioner broke 

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2010 Audi A6 / S6 4dr Sedan

435-horsepower 5.2L V10 6-speed shiftable automatic AWD

Audi A6 / S6 in Massachusetts, United States
May 2014 - Apr 2018
May 2014

43000 mi
Tweeter in driver's door replaced due to scratchy sound/cutting in and out at low volume. Replacement tweeter experiencing same issue, so I believe the cause is loose wiring or an issue with the head unit. Update: resolved itself a few weeks later. 
Aug 2015

57700 mi

US $450
Vacuum hose failed and needed to be replaced. Was causing check engine light, which indicated that the engine was running lean. 
Sep 2015

58000 mi

US $1700
Replaced intake manifold and breather hose 
Mar 2016

64000 mi

US $750
Driver's door would intermittently not lock/unlock with the remote. Had to use the key to lock/unlock. Dealer replaced lock assembly. 
Jun 2016

65000 mi

US $165
Low voltage in the car's electrical system caused several intermittent fault lights, including ABS, traction control, etc. The issue was not solved during the initial service visit. The car is currently back at the dealer for further diag. 
Jul 2016

65200 mi

US $150
Various wiring harnesses needed to be replaced for the ABS system. 
Dec 2016

69450 mi

US $204
Replaced front right inner CV boot 
Dec 2017

77000 mi

US $650
Replaced left front half shaft due to bad CV joint. Apparently the CV joint cannot be replaced without replacing the axle. Replaced cracked coolant expansion tank. 

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2010 Audi A6 / S6 4dr Sedan

255-horsepower 3.1L V6 7-speed shiftable CVT FWD

Audi A6 / S6 in Georgia, United States
Jan 2016 - Jul 2018
Sep 2016

100000 mi

US $1100
Radiator fan/AC Fan and fan control module replaced. Also replace drive belt an tension pulley. 
Jun 2017

111000 mi

US $950
Replace water pump and thermostat. 
Oct 2017

115000 mi
Replace AC Blower motor Replace tensioner and serpentine belt. 

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2009 Audi A6 / S6 4dr Sedan

turbocharged 170hp 2.0L I4 7-speed shiftable CVT FWD

Audi A6 / S6 in United Arab Emirates
Jun 2016 - Jun 2018
Nov 2016

58900 mi

¤3000
Change gearbox 
May 2018

68200 mi

¤500
Hanged ac compressor Changed rear windshield 

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2009 Audi A6 / S6 4dr Sedan

supercharged 300hp 3.0L V6 6-speed shiftable automatic AWD

Audi A6 / S6 in Indiana, United States
Feb 2015 - Jun 2018
Jul 2015

60000 mi

US $500
Pressure sensor leaking. Replaced sensor. 
Aug 2016

80000 mi

US $1250
Stuck thermostat. 
May 2018

95000 mi

US $450
Replaced tensioner pully due to a failed bearing. 
Jun 2018

97000 mi

US $550
Replaced idler pully due to a failed bearing. 
Audi A6 / S6 in Nevada, United States
Jun 2014 - Jul 2018
Feb 2014

81165 mi

US $585
Replaced the vacuum pump that was leaking oil. Replaced the driver side valve cover gasket. Started to leak oil. 
Jul 2018

156000 mi

US $2300
Main cooling fan failed. Replaced both primary and secondary cooling fans. Also replaced thermostat, water pump, PCV, did a carbon clean. 
Audi A6 / S6 in Virginia, United States
Jun 2017 - Dec 2018
Sep 2018

98000 mi

US $500
Water pump replaced at dealer 

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2008 Audi A6 / S6

Engine not specified

Audi A6 / S6 in Texas, United States
Feb 2016 - Mar 2016
Mar 2016

105000 mi

US $156
Replace fan blower motor. 

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2008 Audi A6 / S6 4dr Wagon

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

Audi A6 / S6 in Illinois, United States
Aug 2011 - Oct 2017
Nov 2011

24200 mi
Multi Media Interactive (MMI) not working. While in for service they performed 35k maintenance. 
Jan 2012

28300 mi
Hid xenon bulb out Rear wiper washer not working right, 
Aug 2016

85000 mi

US $120
Replaced cracked start button. 
Sep 2016

88000 mi

US $30
Hood lift shock support replaced 
Dec 2016

91000 mi

US $100
Replace liftgate shocks. 
Oct 2017

107000 mi

US $1150
Leaking brake pump 
Audi A6 / S6 in Arizona, United States
May 2015 - Aug 2015
Jul 2015

88000 mi

US $400
Had Bose amp repaired after wiper fluid got inside from leaky hose. 

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2008 Audi A6 / S6 4dr Sedan

435-horsepower 5.2L V10 6-speed shiftable automatic AWD

Audi A6 / S6 in Virginia, United States
Apr 2013 - Sep 2014
Jun 2013

48000 mi

US $1700
CEL for misfire. Due to excessive carbon buildup, had to replace oil separator, all 10 fuel injectors, all spark plugs. After initial repair, starter failed adding another 20 hours of labor. Carbon cleaning on upper. CELs continue. 
Sep 2013

50000 mi

US $120
Right bank catalytic converter was bad. Oxygen sensor was also bad. Passenger side tail light bulb board was burnt out. 
Jan 2014

US $1200
Both EGR valves and associated equipment failed, making engine run rich with a heavy gasoline smell. Took into shop because CEL was on and the EGR valve tubes had started to melt and smoke. 
Apr 2014

58300 mi

US $1100
All 4 front upper control bushings were bad, and were replaced. Front passenger CV axle boot was torn and the whole axle boot was replaced. Left bank catalytic converter O2 sensor failed, and was replaced. 
Audi A6 / S6 in New Hampshire, United States
Apr 2014 - Jun 2018
Jul 2017

107000 mi

US $300
Replaced Pads and Rotors 

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2008 Audi A6 / S6 4dr Sedan

350-horsepower 4.2L V8 6-speed shiftable automatic AWD

Audi A6 / S6 in Illinois, United States
Mar 2011 - Apr 2016
Dec 2011

41000 mi
Front passenger xenon headlight was replaced under warranty (was sporadically not coming on in Auto mode). The visit took a couple of hours because I had regular maintenance work also scheduled. 
Apr 2016

66000 mi
Needed new control arms and bushings 
Audi A6 / S6 in Pennsylvania, United States
Apr 2013 - Sep 2015
Dec 2013

95000 mi

US $395
Remove and replace main seal. 
Apr 2014

107200 mi

US $100
I had a consistent oil leak that turned out to be the rear seal. 
Jun 2014

111000 mi

US $2900
Replace intake manifold 
Audi A6 / S6 in Idaho, United States
May 2010 - Sep 2017
Jun 2014

87000 mi

US $180
Headlight replacement 
Aug 2016

116000 mi

US $850
Rattle in the right front suspension. Replaced a lower control arm. Sun roof spring mount failed. Had to repair with a factory kit for this problem 
Sep 2016

117000 mi

US $1200
Oil leak around the oil filter attachment point. Also, had to de-carbonize the intake manifold. 
Dec 2016

122000 mi

US $900
Adaptive headlight failed and had to be replaced. 
Feb 2017

126000 mi

US $600
Front brake pads and rotors replaced 

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2008 Audi A6 / S6 4dr Sedan

255-horsepower 3.1L V6 7-speed shiftable CVT FWD

Audi A6 / S6 in Missouri, United States
Oct 2010 - Jun 2011
Nov 2010

50000 mi
For the second time since purchasing the A6 new, the water pump failed. Dealer has admitted that Audi installed water pumps on A6's with incorrect housings. A day after picking car up after failed water pump replacement the malfunction light came on and the car would not run. Fuel thrust module failed. 
Audi A6 / S6 in Pennsylvania, United States
Apr 2014 - Jun 2016
Apr 2014

55000 mi

US $700
wheel bearing 
Jun 2014

58000 mi

US $237
spurious electrical problems, replaced alternator and key fob battery. Driver door still refuses to unlock with key fob at times. 

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2008 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in California, United States
Nov 2010 - Dec 2011
Feb 2011

41100 mi
Misfires detected, was fixed with a software update found in a TSB by dealer. 
Audi A6 / S6 in Minnesota, United States
Mar 2011 - Aug 2012
Dec 2011

89000 mi

US $35
Connector to rear light corroded. Cleaned and returned. 
Aug 2012

91000 mi

US $600
Replaced left timing cover seal to repair oil leak 
Audi A6 / S6 in Alabama, United States
Mar 2010 - May 2018
May 2010

25000 mi
Rough idle on cold starts. Eng check light and off many times. 
Sep 2011

45000 mi
Idler pulley replaced. Water pump replaced. 
May 2016

82000 mi
AC inop. Charged system (or so they claim) but compressor clutch would not engage. I figured a faulty pressure switch but he claims there were no fault codes. I went and retrieved my car and made no payment. 
Jun 2016

83000 mi

US $400
Removed, replaced faulty ac pressure switch and charged system. 
Audi A6 / S6 in Illinois, United States
Nov 2010 - Jan 2013
May 2011

45000 mi
Fuel gauge stuck. Repaired with software update and wiring TSB 
Aug 2011

52000 mi

US $20
Power seat controls came loose. Dealer replaced a screw. 
Sep 2012

82000 mi

US $80
Blower Fan 
Audi A6 / S6 in Georgia, United States
Mar 2009 - Jun 2018
Jan 2009

12089 mi
Engine malfunction (i.e., check engine) light came on. There was a Technical Bulletin (# 24N1) on the vehicle which indicated a computer software upgrade was needed. Dealer installed the software upgrade. This seemed to resolve the check engine light. 
Jul 2010

39000 mi
Air bag light on due to faulty sensor in seat belt clamp Head lamp bulb replaced 
Oct 2010

43000 mi
Air bag warning light came on. Problem was again diagnosed as a faulty sensor in the seat belt latch. Seat belt latch was replaced again to fix problem. 
Feb 2011

48000 mi
CEL on, because of common carbon build-up on intake valves issue. Dealer has cleaned heads previously. This time just software update, which likely just made sensors less sensitive. 
Mar 2011

49000 mi
Passenger air bag light on. Replaced seat belt holder. Third time for the airbag issue. They finally found that there was a bad wire in the harness connector. That seems to have resolved the problem.  
Apr 2015

92700 mi
Replaced rear left taillight assembly. The warning light came on while the car was a the shop for maintenance. The service advisor claimed the whole assembly had to be replaced. The advisor said the part may have shorted and burnt out. 
Sep 2015

99000 mi
Airbag light illuminated. Service technician reported that there is a intermittent communication failure between airbag sensor and air bag controller 
Nov 2015

100400 mi

US $550
Airbag light came on (Belt Force Sensor for Seat Occupied Recognition - code 02513). Indy Audi mechanic replaced seat belt at a cost of $445 for the belt and $105 for labor. Unfortunately, this did not fix the problem. Light came on again. 
Apr 2016

104300 mi

US $144
MIL light came on. Codes P2070 and P2006 were reported. Mechanic diagnosed problem as a leaking vacuum hose. Repair costs of $144 consisted of $132 for labor (diagnosis and repair) and $12 for the vacuum hose. 
Apr 2017

112000 mi

US $476
Replaced all four TPMS sensors after the tire pressure and TPMS warning lights were illuminated. My VAG-COMM tool showed that the batteries had failed or was extremely low in my TPMS sensors. Actually, thinking about it, I probably should have replaced the TPMS sensor in the spare tire as well. NOTE: Repair was originally done by Discount Tire with HUF universal TPMS sensors. This did not correct the problem. The TPMS warning light continued to be displayed after the installation of the new sensors. Subsequently, replaced the universal TPMS sensors with Audi brand sensors. This corrected the problem. The "universal TPMS sensors" do not seem to be compatible with the Audi A6. 
Jul 2017

113400 mi
Replacement of Takata passenger airbag 
Oct 2017

115500 mi

US $350
After having the 115K service performed by an independent Audi mechanic, the ESP, EPC, and CEL (blinking) lights became illuminated on the drive back home. I returned to the independent Audi repair shop. The owner of the Audi shop (an Audi expert) checked the car out. He did not find any reason for the ESP, EPC, and CEL fault. However, he suggested that the ignition coils be replaced. The ignition coils were replaced at cost with no labor charge as a courtesy for the inconvenience of having to return to the shop After having the ignition coils replaced by the independent Audi mechanic, the EPC, EPS, and CEL (blinking) lights came back on the way back home. The vehicle was then taken to the Audi deal for analysis of the codes. The dealer kept the vehicle for several days, but could not any reason for the codes. I was charged $300. This was essentially, a $100 charge to troubleshoot each code separately. Although I explained that the warning lights all came on at the same time, the service adviser indicated that they needed to troubleshoot each code separately. Later, the service adviser claimed that the time that the mechanic spent trying to diagnose the problem was easily double the amount that I paid. The car was returned to me without the mechanic at the dealer finding any problem. The codes were reset by the mechanic and did not occur again while the car was at the dealership. 
Nov 2017

115474 mi

US $2540
EPC, ESP, and CEL (blinking) lights became illuminated again. Car was towed to the independent Audi repair shop. Audi mechanic diagnosed the problem as the infamous Audi carbon build-up issue in the 3.0 V6 TSI engine. The left and right intake manifolds were replaced and a carbon cleanup was performed. Water pump was replaced at this time as a precaution. 
Mar 2018

117701 mi

US $1883
Replaced leaking valve cover gaskets Replaced front sway bar links Replaced coolant hose Replaced vacuum pump Replaced power steering hose 
Audi A6 / S6 in Maine, United States
Mar 2010 - Mar 2012
Apr 2010

17000 mi
Malfunctioning front brake caliper Caliper replaced. 
Audi A6 / S6 in New Jersey, United States
Jul 2010 - Jan 2011
Dec 2010

41000 mi
MMI computer replaced 
Audi A6 / S6 in Rhode Island, United States
Mar 2010 - Jun 2017
Feb 2010

36000 mi

US $500
new front breaks and rotors 
Dec 2011

55000 mi
bulb out flashed on all blubs in rear driver side tail light assembly. Found corosion on the connectors in the assembly. Replaced the assmebly 
Jul 2012

64000 mi

US $350
passenger headlight was replaced 
Aug 2012

64200 mi
check engine light stayed on. piece that had to be removed to change the headlight was broken. 
Feb 2014

85800 mi

US $590
cylinder coil replaced 
Feb 2015

99000 mi

US $800
stereo stuck on Mute. Software was upgraded, Bose AMP was replaced but music only comes out on the Driver side 
Feb 2017

120000 mi

US $650
repair oil leak adaptive light system failed 
Audi A6 / S6 in Pennsylvania, United States
Mar 2010 - Aug 2011
Oct 2010

8000 mi
Engine light came out. Dealer stated that "software needed to be upgraded". Diagnostics showed that cylinder 6 was "misfiring". 
Audi A6 / S6 in Maryland, United States
Jan 2015 - Jun 2018
Jul 2015

67300 mi

US $240
Jerky shifting, loud whining noise, eventually devolving into limp mode and then wouldn't go into gear at all. Changed fluid and filter. 
Feb 2018

84031 mi

US $240
Front and rear brake pads and disks Clunking noise during tight turns. Replaced both front stabilizer bar links. 
Audi A6 / S6 in Maryland, United States
Oct 2011 - Nov 2011
Mar 2011

59670 mi

US $30
The left HID bulb would go on and off. I didnt know if it was the ballast or the bulb. The company replased the bulb for free. Also the mechanic said he would find out why my fans are runing all the time but its been almost a year now. 
Audi A6 / S6 in Wisconsin, United States
Oct 2014 - Dec 2018
Jul 2017

102000 mi

US $30
Replaced a/c high pressure sensor. 
Audi A6 / S6 in Missouri, United States
Sep 2011 - Jun 2013
Nov 2011

35000 mi
Engine was performing sporadically, then engine light began flashing. I took it in and Dealer identified it as misfire and carbon covered pistons. They cleaned fuel system and pistons. Unfortunately, I was back within just over a week. Updated and recalibrated engine software, cleaned pistons, added fuel cleaner. Has not been a problem since. 
Oct 2012

52700 mi
Check oil level light went off last week. Had it checked and there were no issues. 
Jun 2013

63000 mi

US $150
Right headlight needed replaced. 
Audi A6 / S6 in Massachusetts, United States
Jan 2014 - Feb 2016
Feb 2016

77000 mi
ECU fail. Replacement needed. $6,000 
Audi A6 / S6 in Arizona, United States
Mar 2017 - Dec 2017
Jul 2017

125000 mi

US $1050
Air compressor died. They replaced it with a new one. 
Audi A6 / S6 in New York, United States
Dec 2011 - Jul 2012
Feb 2012

40400 mi
Center drivers information display would turn on and off after startup. Would only stay on consistently after 10-15 minutes of driving. 
Audi A6 / S6 in Massachusetts, United States
Feb 2012 - Dec 2012
Mar 2012

52000 mi

US $440
Right tail light replaced because of moisture infiltration and corrosion. 
Audi A6 / S6 in Maryland, United States
Sep 2012 - Mar 2013
Mar 2013

73000 mi

US $85
valves needed flushing 
Audi A6 / S6 in Wisconsin, United States
Apr 2013 - Oct 2013
May 2013

56500 mi

US $750
Rack and pinion system leaking power steering fluid, unable to repair and had to replace. Repair would have been almost $2,000 but we were able to find used part. My car was pulling way to the left, dealership said something was "froze" up and in order to perform an alignment they had to replace all of the tie rods. 

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2007 Audi A6 / S6

Engine not specified

Audi A6 / S6 in California, United States
Mar 2010 - Jun 2011
Apr 2010

24000 mi
Headlight malfunction - fixed under warranty 
Audi A6 / S6 in Great Britain
Sep 2010 - Jun 2011
Oct 2010

62000 mi

£600
Mechanical breakdown requiring recovery due to failure of the EGR valve, caused by failure of the EGR cooler which presented itself as a coolant loss issue main dealers were unable to diagnose for over 4 months 
Audi A6 / S6 in Ontario, Canada
Apr 2013 - Apr 2014
Jan 2014

C $250
Engine light on - repair was traced to broken vacuum line. Loud rattle as if chain was loose or lifter stuck. Usually stops after 1-2 mins. Tech says it's a known issue with this engine that cam chain tensioner is loose. Requires lifting full engine to repair. Frequent oil changes may resolve. 
Apr 2014

76880 mi

C $5500
Cam chain tensioner failed one bank. Chain skipped resulting in bent valves. Required to pull engine, head sent out for repair. Replaced broken parts plus same parts on other bank. Mechanic says its a known problem with this engine. 

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2007 Audi A6 / S6 4dr Wagon

turbocharged 140hp 2.0L I4 Diesel 7-speed shiftable CVT FWD

Audi A6 / S6 in Great Britain
Aug 2011 - Feb 2018
Apr 2012

69500 mi
Dual mass flywheel replaced 
Nov 2012

76600 mi
Replaced exhaust pressure sensor 

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2007 Audi A6 / S6 4dr Wagon

435-horsepower 5.2L V10 6-speed shiftable automatic AWD

Audi A6 / S6 in Sweden
Oct 2013 - Jun 2015
Mar 2014

98580 mi
Exchanged both front and one rear driveshaft. One didn't exist in stock so it had to be re-manufactured. 
Aug 2014

100840 mi

$70
ESP fault. ABS, ESP, EPC didn't work properly. Electronic Throttle and automatic gearbox went into "Limp home", almost no possibility to accelerate normally. Didn't found what caused it, suddenly all problems dissapeared. 

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2007 Audi A6 / S6 4dr Wagon

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

Audi A6 / S6 in Washington, United States
Apr 2013 - Dec 2015
Aug 2015

95000 mi

US $300
battery was overdue for replacement. 
Audi A6 / S6 in Colorado, United States
Feb 2010 - Mar 2013
Mar 2010

39500 mi
Headlight bulb and ballast replaced. Front passenger door interior LED strip replaced. 
Jun 2012

68000 mi

US $80
Intake flap motor failed, was replaced under certified warranty. Electric tilt wheel was not functioning. 
Jul 2012

68500 mi

US $80
Transmission not shifting properly from 1st gear. Replaced entire shifter mechanism & computer. 
Audi A6 / S6 in California, United States
Feb 2013 - Oct 2015
Jan 2014

US $20
Vacuum elbows had become brittle and cracked along the front of the motor. Replacement was quick and easy. 
Audi A6 / S6 in Minnesota, United States
Jun 2013 - Jul 2013
Jul 2013

98000 mi
Washer fluid leaked on the amplifier, shorting it out. Amplifier was replaced. 
Audi A6 / S6 in Washington, United States
Jun 2010 - Sep 2018
Sep 2014

50000 mi
Center console display takes long time to turn on. Haven't fixed it yet as I've heard it's an expensive work (2k). 
Audi A6 / S6 in Virginia, United States
Feb 2010 - Nov 2010
Mar 2010

28000 mi
Near total loss of compression on cyl#3. Borescope indicated severe cylinder scoring from unknown source. Complete engine short block, timing gears and cats replaced under warranty. (Problem from previous month @ 22K miles.) 
Audi A6 / S6 in Illinois, United States
Jun 2017 - Jun 2018
Jun 2018

146000 mi

US $1062
Valve cover gasket Power steering hose Replace snub mount Center brake light 
Audi A6 / S6 in New York, United States
Dec 2012 - Nov 2014
Jan 2013

76700 mi

US $600
Adaptive Cruise Control stopped working 
Jul 2013

85000 mi
The Adaptive Cruise on the Audi finally fixed itself when my indy Audi mechanic unplugged the battery, cleared the codes and let it reset itself. 
Nov 2014

95000 mi
Airbag light on 
Audi A6 / S6 in Pennsylvania, United States
Apr 2016 - Mar 2018
Aug 2016

115000 mi

US $23
Replace Right Side Sun visor clip Replace Rear Wiper Blade 
Oct 2016

116500 mi

US $1075
Thermostat housing leaking, replaced housing and thermostat Replace lower oil pan Valve cover gaskets leaking, upper timing chain covers leaking, vacuum pump gasket leaking. 
Sep 2017

128184 mi

US $644
Check engine light showed misfire on cylinder 3. Spark plug was fouled, replaced plug. Check engine light showed camshaft sensors out of spec. Replaced bank 1 and bank 2 exhaust side camshaft position sensor. Cleaned camshaft actuators. 
Oct 2017

128931 mi

US $247
Flashing check engine light, Flashing ECS light, Hesitation. Found misfire cylinder #2. Replaced spark plug. 
Audi A6 / S6 in New Brunswick, Canada
Jul 2010 - Feb 2011
Feb 2011

27280 mi

C $250
washer fluid reservoir cracked and leaking all fluid 
Audi A6 / S6 in Oregon, United States
Feb 2015 - Jun 2018
Apr 2016

60700 mi

US $1500
Sunroof leaking, $150 to unclog Automatic trunk opener failed, $1200 for replacement and installation. 
Nov 2016

67600 mi

US $80
Check emissions light resulted in a cracked vacuum line. Repaired and no more light. 
Aug 2017

71000 mi

US $500
Brake replacement and repair 

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2007 Audi A6 / S6 4dr Wagon

Audi A6 / S6 in Ireland
Oct 2017 - Jun 2018
Dec 2017

69440 mi

€250
DV Valve for Turbo was sticking so the car (Petrol) 2.0 TFSI was on and off when it came to Turbo Pressure. 

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2007 Audi A6 / S6 4dr Sedan

435-horsepower 5.2L V10 6-speed shiftable automatic AWD

Audi A6 / S6 in California, United States
Jun 2010 - Jan 2014
Jul 2010

28000 mi
lumbar support mechanism broken in drivers seat. 
Oct 2010

30000 mi
Right front control arm had too much play. Felt slight vibration through steering wheel. 
Dec 2013

57000 mi

US $890
carbon cleaning due to buildup. 
Audi A6 / S6 in New York, United States
Sep 2011 - Apr 2012
Nov 2011

43700 mi
Fuel gauge worked sporadically 
Audi A6 / S6 in Washington, United States
Feb 2010 - Jan 2018
Mar 2010

35000 mi
Faulty driver-side window switch (would not reliably raise front passenger window) 
Aug 2010

39000 mi
Ignitor in rear center seat set failed, causing Airbag System fault. 
Sep 2010

40000 mi
Failing connector on wire harness 
Oct 2010

42000 mi
Center arm rest latch broke; replaced 
Mar 2011

45000 mi

US $100
Embedded Controller in right rear light cluster went bad, erroneously reporting that all bulbs in the cluster had failed. Rear cluster was replaced. 
Aug 2012

66400 mi

US $100
Trip Computer went out, center dash console had to be replaced 
Jun 2013

78000 mi

US $3
Plastic piece of intake control arm broke, falling into cylinder 1. Intermittent flickering CEL for the first week (registered as Cylinder 1 Misfires), solid CEL for the second week. Confirmed by removing intake manifold. While engine open cleaned out heavy carbon deposits from the other nine cylinders. (Misfires had cleaned out cylinder 1.) Cracked coolant reservoir that needed to be replaced. 
Mar 2014

88000 mi

US $100
Split bushings, across front and rear sway bars. 
Jun 2014

91000 mi

US $540
Hole in coolant line. 
Oct 2014

93700 mi

US $243
Bad clamp for intake hose was causing engine to run too lean 
Jun 2017

145000 mi

US $650
Replaced serpentine belt. 
Audi A6 / S6 in Chile
Feb 2010 - Dec 2011
Sep 2010

27900 mi
Tilt/Telescoping steering wheel not working, software was updated and the problem was solved. 
Dec 2011

34100 mi

$150
One of the air intake manifolds wasn't opening completely which caused an error in the ECM and a lack of low end torque. Was repaired sucessfully by cleaning the air intake manifold systems. 
Audi A6 / S6 in Quebec, Canada
Nov 2012 - Jun 2017
Nov 2012

49600 mi

C $400
"Low antifreeze" light "on", add anti freeze. One week later start to see small spots on the garage floor, "low antifreeze" light "on" again search further, antifreeze reservoir leaking, replace reservoir 
May 2013

55800 mi

C $1100
Transmission oil pan gasket leak 
Mar 2017

71920 mi

C $102
Anti freeze leak up near Oil filter and second leak from water pump 
Audi A6 / S6 in Alabama, United States
Feb 2015 - Oct 2015
Apr 2015

71000 mi
Car has misfires in multiple cylinders, went in for a carbon clean, plug change. Replaced valve cover gasket and lower oil pan gasket. Power steering pump is faulty 
Jul 2015

73800 mi

US $300
Replace intake manifold 
Aug 2015

74400 mi
CV boots replaced both sides, inner boots Intake manifold gasket improperly installed 
Audi A6 / S6 in Connecticut, United States
Aug 2014 - Jun 2018
Jul 2015

78000 mi

US $249
Intake manifold runner stuck open; broken clip was replaced. Part was $3.61 but labor was $245 License plate lights out and corrosion on contacts. Replaced bulbs and bulb holders 
Aug 2016

81000 mi

US $60
CV boot (right front) Battery replacement - 1.5 hours of labor for "reprogramming" 
Audi A6 / S6 in Connecticut, United States
Dec 2011 - Mar 2017
Feb 2012

53400 mi
Replaced 10 fuel injectors. Engine is a V10 
Apr 2014

70000 mi

US $2000
coolant contaminated oil. Engine had to be removed from car. Coolant issue covered because it was earlier identified by me while under warranty. 
Audi A6 / S6 in Minnesota, United States
Mar 2015 - Jun 2018
May 2015

85400 mi

US $200
AC condenser cracked due to poor installation of aftermarket remote radar detector (K40) by previous owner. Really not a fault of the car. Overflow tank, cap and return line replaced due to excessive temps under hood of V10 engine lead to coolant leaking when vehicle was driven hard 
Mar 2016

94000 mi

US $120
Replaced oil level sensor 
Audi A6 / S6 in Minnesota, United States
May 2013 - Jul 2018
Sep 2015

94000 mi

US $212
Replace Battery 
Jun 2018

120000 mi

US $1400
Located Oil Leak and replaced gasket around oil filter housing Replace front inner boots 

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2007 Audi A6 / S6 4dr Sedan

350-horsepower 4.2L V8 6-speed shiftable automatic AWD

Audi A6 / S6 in Texas, United States
Feb 2010 - Aug 2011
Apr 2010

49000 mi
Bluetooth module malfunctioning and repaired. Bluetooth module malfunctioning and repaired.  
May 2010

50000 mi
Bluetooth reset (apparently it stops working if the battery gets too low). Repaired a windshield washer sprayer. 
Sep 2010

55000 mi

US $85
Air intake pipe detached, causing CEL and stalling. Pipe reattached. 
Oct 2010

56000 mi

US $75
Upper link arms on front suspension were torn; replaced. Also replaced engine mounts which were leaking. 
Audi A6 / S6 in Quebec, Canada
Mar 2011 - Dec 2011
Dec 2011

65100 mi

C $100
Check engine lit, confirmed gascap okay, connected to computer, multiple readings, several gaskets replaced, including manifold. covered under Audi Care/CPO car to 125,000 km 
Audi A6 / S6 in Washington, United States
Mar 2010 - Jun 2011
Apr 2010

22000 mi
audio dysfunction, apparently due in part to i-phone interface 

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2007 Audi A6 / S6 4dr Sedan

255-horsepower 3.1L V6 7-speed shiftable CVT FWD

Audi A6 / S6 in Georgia, United States
Dec 2013 - Dec 2014
Jul 2014

59300 mi

US $1800
Bushings replaced 
Audi A6 / S6 in California, United States
May 2011 - Apr 2013
Feb 2012

48600 mi

US $370
Cam position sensor 

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2007 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in Tennessee, United States
Aug 2010 - Mar 2014
Apr 2011

28200 mi
Starter motor. Turning the key resulted in hearing the whirr of the starter motor, but not the solenoid that kicks the starter up to the flywheel. Wait a while . . . same result. Wait a while . . . same result. Wait a while, then it would work. 
Audi A6 / S6 in New Jersey, United States
Feb 2007 - Apr 2012
Nov 2007

7300 mi
Strange noise from A/C blower 
May 2011

26900 mi

US $130
Fuel pump replaced. 
Audi A6 / S6 in British Columbia, Canada
Nov 2011 - Dec 2011
Dec 2011

62000 mi

C $211
Left hand light error, LHS marker light had a intermittent failure. 
Audi A6 / S6 in Virginia, United States
Feb 2010 - May 2017
Mar 2010

39000 mi
grinding, clunking sound in steering/front suspension 
Nov 2011

64000 mi

US $250
two vacuum hoses failed, dealer replaced 
Oct 2012

75700 mi

US $300
Bluetooth module failed. Chose not to fix due to cost. Dealer bypassed bluetooth unit so that radio would work. 
Apr 2013

82500 mi

US $1099
Main vacuum pump failed. Caused check engine light to come on. Also caused partial failure of brakes. 
Mar 2015

108000 mi

US $1100
vacuum lines inside the manifold were broken and caused CEL 
May 2015

110000 mi

US $2000
Motor for adaptive lighting failed. Must replace entire light housing 
Audi A6 / S6 in Pennsylvania, United States
Nov 2015 - Jun 2016
Jun 2016

58000 mi

US $1400
Adaptive headlight failure. 
Audi A6 / S6 in United Arab Emirates
Dec 2016 - Jun 2018
Dec 2016

71300 mi
replaced all front CV boots LH headlamp assy AFL failed - dipped light warning 
Jan 2017 replaced AC cabin fan motor assy RH Xenon bulb busted - busted bulb warning illuminated 
Mar 2017

73160 mi

¤130
Engine cooling warning came on and found that coolant leaked from a broken plastic fitting Reservoir to Pipe and Upper Radiator Hose and while trying to remove the hose the bypass pipe fitting from the Lower radiator hose also broke. I then had to replace both hose assemblies. 
Jun 2017

74400 mi

¤200
Ac will not cool air when stationary. Found coolant fan control module is defective and will not run the fans at high speed. To the point the overheat warning light came on. Basically the complete engine cooling fan assembly was replaced by a used unit from a scrap yard because buying the fan control module is expensive and requires to splice the wires. So I decided to look for a good condition used assembly and just a straightforward replacement to keep the wires intact without any splice connection. This fixed the ac and engine cooling. BTW diagnosis reviled that the fan control module as malfunctioned and the condenser pressure sensor fault. 
Aug 2017

75492 mi

¤70
During my previous service, which included spark plugs replacement, it was noticed that the plugs were wet with oil indicating a leak with the gasket. On this cycle of service I decided to replace the cylinder head cover gaskets. 
May 2018

78120 mi

¤100
Had the front bearings replaced due to noise After a month or so after the bearing replacement I noticed a ratling sound coming from the front left wheel well. When I got home and inspected I found that the left upper caliper bracket bolt was missing and the caliper assembly has migrated upwards. Bought 4 new bolts and replaced all three remaining bolts on both front brake caliper brackets. Torqued the bolts to 196nm as per repair manual. 
Jun 2018

78740 mi

¤200
Replacement of worn brake pads 
Audi A6 / S6 in Illinois, United States
Dec 2010 - Apr 2015
Dec 2013

56000 mi

US $140
Air leak on 3 rims. 
Feb 2014

57000 mi

US $380
engine lite. code read manifold crosover valve.. replaced vacume pipe 
Audi A6 / S6 in Massachusetts, United States
Nov 2011 - Jan 2015
Sep 2013

97000 mi

US $1566
Replace Right Exhaust Cam Sprocket and Chain Tensioner 
Jan 2014

102000 mi

US $100
Small plastic piece from timing chain tensioner plugged oil sprockets in cylinder head, affecting oil pressure, and consequently the timing. Mechanic quickly removed the plastic piece, car is fine now. 
Audi A6 / S6 in Washington, United States
Oct 2011 - Dec 2014
Aug 2014

102000 mi

US $200
Check engine light was an evaporative system leak. 
Audi A6 / S6 in Nevada, United States
Jan 2011 - Mar 2012
Jan 2012

86000 mi
Sunroof shade 
Audi A6 / S6 in California, United States
Feb 2010 - Dec 2015
Mar 2010

44000 mi
blue tooth phone module 
Apr 2010

44000 mi
replaced Satellite radio module replaced satellite radio module 
Apr 2012

71500 mi

US $80
Leak into rear foot well secondary to misaligned door seal. Sensor replaced 
Jul 2012

74000 mi
check engine light on, Valves stuck. 
Apr 2013

82800 mi

US $275
Valve cover repair 
Nov 2014

101800 mi

US $3100
Cam seal leaks Sunroof interior fixed Rear seat tensioner 
Sep 2015

110000 mi

US $500
Pump sensor in the gas tank 
Audi A6 / S6 in Illinois, United States
Jan 2014 - Oct 2017
Jan 2014

1000 mi

US $82
CEL code P00008b came up, vehicle engine was cutting fuel off and dying when parked or in gear with no load. Fix was to replace low side fuel pressure sensor so it would read normal/correct fuel pressure. 
May 2014

122000 mi

US $2200
Access Control Starter Module in steering column went bad, car was effectively dead and had to be towed to dealer and steering column had to be replaced to fix, TSB on issue but no word from AoA after email sent about issue. 

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2006 Audi A6

Engine not specified

Audi A6 in Washington, United States
Nov 2014 - Sep 2015
Sep 2015

67000 mi

US $400
Replaced heater valve. 
Audi A6 in Oregon, United States
Dec 2012 - Dec 2013
Feb 2013

85700 mi

US $300
Metal fragments found in engine. Engine replaced under extended warranty bushing replaced 
Audi A6 in California, United States
Sep 2008 - Jun 2011
Mar 2009

27000 mi
cracked sunroof frame 
Aug 2009

37000 mi
AC blowing warm air. Replaced AC Pump valve. 
Feb 2010

46000 mi
Sunroof frame cracked and making noise/rattle 

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2006 Audi A6 4dr Wagon

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

Audi A6 in Washington, United States
Apr 2014 - Jun 2018
May 2015

80400 mi

US $200
Valve cover gasket replaced, was leaking oil. 
Oct 2015

84500 mi

US $35
Replaced brake light switch myself. Brake lights were staying on with the key out. 
Feb 2016

87000 mi

US $1300
Front air struts leaking need to be replaced $650 per strut for remanufactured strut. 
Mar 2016

88000 mi

US $160
replaced control arm and stabilizer bar end links 
Audi A6 in Alberta, Canada
Dec 2009 - Jun 2017
Mar 2011

93000 mi

C $1500
Replaced worn front sway bars. 
Jul 2011

101680 mi
Power steering and electrical switch to open glove compartment stopped working simultaneously. With engine on, I removed and reinserted the fuse for "intelligent power module" (front passenger side). Problems resolved. 
Dec 2012

119660 mi

C $380
Reduction of power steering assist at low speed e.g.. during parking. Power steering pump replaced but problem was only rectified by replacing fuse of power control module that also supplies power to electric glove box opener switch. 
Jan 2013

119660 mi

C $250
Spontaneous rupture of coolant hose from reservoir to radiator. 
Aug 2013

127720 mi

C $330
Complete socket units for day time running lights had to be replaced. Bulb had overheated and melted the receptacle. 
Feb 2014

133860 mi

C $1465
Both front upper control arms replaced due to worn linkages, $986. Vacuum pump was leaking slightly, preventive replacement was performed, $479. 
Aug 2014

139860 mi

C $191
Gas shocks for rear hatch. Parts= $168, Labour=$23. 
Dec 2015

150660 mi

C $933
Check engine light indicated that the high pressure fuel pump was not achieving correct specifications. This had illuminated 4 months earlier and was reset. But light recurred after several weeks. 
Feb 2016

151360 mi

C $380
High pressure fuel pump was replaced. A week later, engine stalled several times without check engine light illuminating. Mechanic replaced both high pressure (again) and low pressure fuel pumps because uncertain of the true culprit. 
Jan 2017

153160 mi

C $400
Windshield washer container developed a crack resulting in a leak. This was replaced. Required over two hours labour because of difficulty with access. 
Audi A6 in Utah, United States
Apr 2011 - Aug 2017
May 2011

74000 mi
AM/FM Bose amplifer failure New Bose amplifier for AM/FM radio unnstalled 
Jan 2012

79000 mi

US $149
Replace sway bar end links 
Aug 2013

94000 mi

US $240
Back up sensor located in rear bumper failed 
Mar 2014

98000 mi

US $55
Switch to electrically close hatch back door failed. Purchased replacement switch and replaced. Problem fixed. 
Jun 2014

100000 mi

US $1900
MMI Amplifier 
Oct 2014

100700 mi

US $1100
Air pump that is part of emission control system and pressurizes fuel tank was replaced. Dash lights failed to turn on with headlight switch in auto position. Rain sensor / light sensor replaced. 
Nov 2014

102600 mi

US $1200
To clear fault code ECM had to be replaced 
Dec 2014

104000 mi

US $400
Solenoid used to adjust variable valve timing failed 
Aug 2016

122000 mi

US $4000
Restore timing cover gaskets, replace vacuum pump, new brakes and rotors 
Audi A6 in Alberta, Canada
Apr 2011 - Sep 2016
Nov 2013

80600 mi
valve cover gasket 
Apr 2016

99500 mi

C $500
Had to replace the AC compresor. 
Audi A6 in Mississippi, United States
Jan 2013 - Jun 2015
Jul 2014

111700 mi

US $700
MMI computer failed.  O2 sensor replaced. 
Mar 2015

118000 mi

US $120
Low freon. Recharged 
Audi A6 in Denmark
Dec 2012 - Feb 2014
Jan 2013

89600 mi

$2500
Timing chains had stretched, and engine had to be pulled out to replace them. Additional parts around the chains were also replaced. Faulty compressor in air suspension. 
Audi A6 in Wisconsin, United States
Jun 2016 - Aug 2016
Aug 2016

87000 mi

US $300
All control arms timing chain cover gaskets, both valve cover gaskets, brake vacuum pump, air and cabin air filters replaced vacuum lines 
Audi A6 in Pennsylvania, United States
Apr 2009 - Jun 2018
Feb 2011

66000 mi

US $75
10-15 sec "whoo" sound at first cold start of day. First replaced water pump, did not fix. Then replaced serpentine belt and greased idlers which solved problem. 
Dec 2014

123000 mi

US $165
Check engine light came on, OBD-II code P000068. Shop checked intake system for leaks (none found) and cleaned throttle body. 
Jun 2015

130000 mi

US $600
Evap emmission control system leak test pump failed causing CEL but no drivability problems. Pump $500, labor $100 
Oct 2015

134500 mi

US $1800
Apparently the evap test pump (see previous entry) took the ECU with it when it failed as the CEL came back after 2k miles. Replaced ECU, CEL good so far (about 1k miles). 
Audi A6 in Virginia, United States
Aug 2015 - Jun 2018
Sep 2016

135000 mi

US $800
Front right airspring failed. Replaced both front with aftermarket units ABS module failed. Removed, rebuilt by CheapABS and re-installed Replaced upper control arms and sway bar end links 
Audi A6 in Kentucky, United States
Sep 2015 - Jun 2018
Dec 2015

121000 mi

US $7915
Impending failure of timing chains, tensioners and guides required full tear-down of engine, removal of trans, and $4500 in parts for complete replacement of timing system. 
Jun 2017

138000 mi

US $90
Replace brake pads all 4 corners 
Audi A6 in Washington, United States
Oct 2008 - Mar 2013
Feb 2010

33000 mi
Back chain covers leaking oil. Both timing chain covers resealed. Starter failing to engage. New starter installed. All covered under warranty. 
May 2010

34000 mi
CEL came on during road trip. Called dlr. Drove 60 miles to dlr. Coil packs replaced under recall at no cost within 1.5 hours. Loaner given for trip to lunch stop. Car repaired, runs fine 10 days and 400 miles later. 
Oct 2012

50200 mi
Instrument Cluster replaced to repair failing Driver's Information Display. 
Audi A6 in Pennsylvania, United States
Sep 2008 - May 2010
May 2009

42000 mi
Rear window wiper would not always turn OFF. Several failures. Dealer could not replicate, but may have inadvertently repaired problem by going into one of the computers. 
Jun 2009

42000 mi
Rear wiper blade housing failed; blade would not stay in if lifted up. Fully replaced housing, OK now. 
Audi A6 in New Hampshire, United States
Sep 2008 - Aug 2009
Jan 2008

36000 mi
Warranty- Cargo Strap, N/C Diagnosed HVAC quirk- repl part ordered 
Feb 2008

37500 mi
Replace HVAC module under warranty 
Audi A6 in Ohio, United States
Sep 2007 - Jun 2018
Nov 2007

9000 mi
Rear seat cup holders not extending. 
Aug 2012

29200 mi

US $120
Intermittent starting problem. Their diagnostics found no problem so I brought car back home. 
Sep 2012

29000 mi

US $600
Bad starter and relay replaced. 

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2006 Audi A6 4dr Sedan

335-horsepower 4.2L V8 6-speed shiftable automatic AWD

Audi A6 in Texas, United States
Apr 2009 - Jan 2015
May 2009

45000 mi
Headlight washer mechanism had to be replaced 
Mar 2010

50000 mi
Replaced defective coil packs. 
Aug 2014

74700 mi

US $4184
AC Compressor, dryer & orifice tube replacement, plus 75000 service. 
Audi A6 in British Columbia, Canada
Feb 2013 - Dec 2016
Jun 2013

86800 mi

C $450
Fuel level sender failed, causing inaccurate fuel quantity reading. 
Nov 2013

89240 mi

C $470
Valve cover gaskets failed. 
Jan 2014

91140 mi

C $400
ABS control module failed - common problem. 
Audi A6 in Vermont, United States
Sep 2006 - Nov 2009
Aug 2006

4567 mi
5K service (covered under audi car care). washer nozzles low -- adjusted. 
Sep 2006

8366 mi

US $109
10K service (not under audi car care) oil/filter/fluids change. check driver side window switch which periodically does not work. replace non functioning windshield washer jet. rotate tires. 
Oct 2007

23383 mi

US $48
25K service (audi care care). rotate tires, new wheel mount balance. transmission rattle fixed. 
Jul 2008

34600 mi
warranty replace right fuel sending unit -- reporting fault codes, gauge cluster shows 0 fuel 
Aug 2008

35500 mi

US $18
replace fuel sending unit under warranty rotate tires perform 35K service under care plan 
Apr 2009

45000 mi
driver side front wheel bearing replaced -- humming noise noticed which could not be attributed to tires or anything else. 
Audi A6 in New Jersey, United States
Mar 2011 - Jun 2018
Jul 2011

68800 mi
Moderately loud thumping noise when going over speed bumps. Suspension checked, wheel bearing replaced, did not solve problem. Contacted AoA, had the top tech and service manager ride with me. Rep from Audi helped determine it was torque converter. 
Oct 2011

73000 mi
Serpentine belt tensioner had seized. Oil burning at higher than normal rate. Discovered leak in head gaskets which were replaced. 
Apr 2012

81500 mi
Passenger headlight out again. Was replaced less than 6 months ago. 
Mar 2013

95000 mi

US $750
Replace driver side DTRL and replace side marker light. Was also advised to replace one motor mount which has not been done yet. 
Aug 2013

101800 mi

US $250
Drove through 2ft of water in horrendous rain storm. Trams was not shifting right and noticeable vibration from the rear. I waited a week before bringing it in and by then the problem was gone. Dealer kept car for 2 days on extended test. Driver side DRL out after being replaced 5 months ago 
Jun 2014

113000 mi

US $1300
Front bushings 
Oct 2015

129500 mi
Only hot air blows out the driver and passenger side vents. The center vents blow the proper air based on setting the temperature 
Dec 2015

132000 mi

US $125
Parking brake failure light, ABS light, ESP lights on the dash. Diagnoses was a bad solenoid in ABS module. No repair was available, only complete replacement for $2800. Check engine light came on. Diagnoses was failing thermostat. Estimated cost to repair $650, so I decided to let it go for now since the light went off. 
Mar 2016

135000 mi

US $1100
Bad solenoid in ABS module. Replaced with used part 
Jan 2017

134700 mi

US $140
Replaced passenger rear taillight assembly. 4 LED were burned out. It looks like part of the circuit board was melted. One of the contact points was broken and so the turn signal and the brake light were not working. 
Feb 2017

144000 mi

US $1050
Engine temp gauge would not move from C. Replaced thermostat and temp sensor. 
Audi A6 in Kansas, United States
Jan 2010 - Aug 2017
Jul 2011

50700 mi

US $85
Wiring harness shorted between gauge cluster and fuel level sensor, replaced.  A/C Pressure valve faulty, occasionally let in hot air in vents on outside of console (drivers and pass), replaced. Took 3 days to receive/install parts. 
Oct 2012

64000 mi
Diagnosed bad antenna/shark fin. $150+ to diagnose further, plus $400+ to fix. Nav is showing 0 received satellites. Opted to not fix. Diagnosed bushing starting to fail on front upper control arms, $700-800 to fix, dealer told me I can wait a bit to fix. 
Jan 2014

74000 mi

US $2200
Had to replace upper control arms, bushings, and steering knuckle due to difficult replacing one CA. Engine ran extremely rough, multiple cylinder misfire. Issue cleared while in shop. Airbag light on, due to rear right seat belt circuit being broke. Valve cover gasket leak, leak not bad enough to warrant repair 
Nov 2015

89000 mi

US $700
Replaced valve cover gaskets, serpentine belt 
Dec 2015

90000 mi
still leaking oil after valve cover gasket replacement, probably crank shaft gasket. Thermostat is stuck open and Camshaft position sensor threw an error too. Will repair in a few weeks. 
Feb 2016

90900 mi
Gasket leak. Crankshaft position sensor. Thermostat stuck open. 
Apr 2017

99600 mi

US $20
Rainwater got into driver's side footwell (common problem) and shorted out bluetooth module. Replaced with fiber loop and stereo works again. I tried to clean out the area in the engine bay/firewall that I think flooded, so it is possible that I didn't do a good job and it could flood again, although it shouldn't matter since I removed the electronics/bluetooth module that would short out if it did flood. auto-leveling error. Still diagnosing. 
May 2017

101000 mi

US $250
Vacuum leaks from brittle rubber hoses Replaced headlight due to high beam shutter malfunction 
Audi A6 in Georgia, United States
Nov 2008 - Jan 2014
Nov 2012

56600 mi

US $1000
Replaced upper control arms and bushings. The upper bushings were beginning to show wear, but hadn't yet failed completely. 
Nov 2013

61300 mi
Front left CV boot replaced Suction pump replaced. Engine mount stop replaced. Front left drive shaft broke due to prior CV boot work. 
Audi A6 in Georgia, United States
Feb 2016 - Jul 2016
Mar 2016

119000 mi

US $75
Accessory belt snapped, hit and broke front main seal, resulting in battery losing charge and profuse oil leak in front of engine. 
Jul 2016

121000 mi

US $750
Fuel not reaching engine effectively. Replaced fuel pump, fuel suction jet pump, suction jet line, gaskets. 
Audi A6 in Georgia, United States
Nov 2013 - Sep 2015
Mar 2014

65000 mi

US $800
Transmission making hard clunk changing gears 
Dec 2014

80000 mi
Transmission leaking and clunking 
Audi A6 in Missouri, United States
Dec 2013 - Sep 2014
Mar 2014

72000 mi

US $3400
New valve covers and spark plugs New control arms 
Audi A6 in California, United States
Feb 2015 - Dec 2015
Apr 2015

112000 mi

US $400
Battery needed replacement 
Audi A6 in Indiana, United States
Jul 2015 - Aug 2015
Aug 2015

156000 mi

US $100
Car was misfiring, one of my coils was replaced. 

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2006 Audi A6 4dr Sedan

255-horsepower 3.1L V6 7-speed shiftable CVT FWD

Audi A6 in Florida, United States
Dec 2011 - Dec 2013
Jan 2012

US $90
Rattling noise from center dash when foot off gas - was exhaust hanger bracket became loose and exhaust tubing was rattling against car. 
Apr 2012

55500 mi

US $80
Fluid leak (power steering hose) Engine light on (vaccuum hose separated and valve stuck open sporatically was result). Moaning noise when turn to right at 20mph (internal electrical malfunction of pwr steering pump, still made noise after so replaced unit) 
Nov 2012

62300 mi

US $2000
Compressor failed. Replaced compressor, drier and orfice tube flush A/C system twice. 
Dec 2012

63000 mi

US $950
replaced passenger strut, both upper bushings on pass and driver side as suspension suddenly bounced a lot more 
Audi A6 in South Africa
Jun 2011 - Aug 2015
Jul 2011

73160 mi
ABS ASC warning. Handbrake malfunction on pull away. Server jerking on pull away. Front wheel sensor speed ring removed and reinstalled due to string wrapped around wheel hub. 
Nov 2013

91220 mi
Would not start. Stuck in park. Replaced battery as low battery shown Problem not solved. Manually unlock park with button provided. Then car would start. Has happened twice. Suspect fault in brake light earth as bulb warnings randomly. 
Feb 2014

93200 mi

R 1000
RAdio was going on and off every 3 seconds. Air con would not display Other MMI failures as well. The telephone unit under the carpet had failed. 
May 2014

93000 mi

R 17500
Not Starting, TCU failure. Repaired TCU by non dealer repairer, but CAN com failure on repaired TCU. Replace TCU at dealer. Cost in ZAR South African Rands; about $1,590. 
Audi A6 in South Carolina, United States
- Jun 2009
May 2009

32000 mi
Right rear window motor replaced Front parking side light replaced Rear Cupholders replaced *all covered under warranty 
Jun 2009

34500 mi

US $1499
Replaced front bumper-600.00 Replaced rear chrome molding-110.00 Labor and Paint Supplies- 759.00 **110.00 out of pocket costs, all else was reimbursed by insurance 
Audi A6 in California, United States
Dec 2014 - Dec 2014
Dec 2014

132000 mi

US $350
Replaced Valve cover gaskets at 66K miles and now at 132K replace again and left and right timing covers. All spark plugs replaced parking caliper fail on the passenger side, replaced caliper 
Audi A6 in Virginia, United States
May 2009 - Mar 2010
Sep 2009

56000 mi

US $100
Check engine light would go on intermittently. Repair shop pulled the codes and it showed a bad MAP sensor. MAP sensor was replaced. 

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2006 Audi A6 4dr Sedan

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

Audi A6 in Texas, United States
Mar 2013 - Jan 2017
Dec 2013

78000 mi

US $500
Replaced sensor that turns on headlights at night 
Feb 2014

78900 mi

US $1100
Air suspension strut failed 
Sep 2014

86000 mi

US $1500
Air suspension failed Purge valve sticking 
Dec 2015

95000 mi

US $650
repaired oil leak 
Mar 2016

98000 mi
Engine oil leak 
Apr 2016

98700 mi
We finally got the oil leak fixed, but it took 2 more trips to the dealer. We kept going through the engine replacing additional seals until we finally fixed the problem. 
Jan 2017

95000 mi

US $2400
Broken motor mount Replaced power steering pump 
Audi A6 in New Jersey, United States
Sep 2009 - Jan 2013
Oct 2009

30000 mi
CEL came on. Purge valve was faulty and causing CEL light. Valve was replaced; car running normally now. Pedal travel longer than normal. Brakes would grab quickly after certain amount of pedal travel. 
Apr 2010

35100 mi
drain tube for passenger side was cracked and leaking water onto headliner. Replacement of sunroof drain tubes. 
May 2010

35300 mi
Replacement of coil packs. Replacement of coil packs 
Jan 2011

44000 mi
Grinding sound while turning wheel near lock during cold weather. brought to dealer 1st time; told no problem. Brought to dealer 2nd time and Audi engineer reviewed. Parts ordered to repair and will be installed wk of 06-Feb 
Jun 2011

46000 mi
CEL came on due to gas cover being opened 
Aug 2011

49500 mi

US $85
Sunroof cover and tracks were replaced. Problem not fully repaired as of this writing. Sunroof cover not opening/closing as it should. Update: fixed the following month. a/c failed on hottest day of summer. Other issues looked at include Power steering noise and sunroof issues 
Jan 2013 There was a lingering rattle that no one was able to diagnose. It was one of the reasons I got rid of the car. 
Audi A6 in New Jersey, United States
Jan 2014 - Sep 2016
Jan 2015

137000 mi
Dealer caused an error in the programming of the gas mileage computer. Suggested I replace the instrument cluster. When they realized they caused the issue, they reprogrammed the trip computer. 
Feb 2015

138300 mi
Low fluid 
Jun 2015

145000 mi

US $100
Replaced fluid 
Sep 2015

150000 mi

US $2100
New compressor motor 
Nov 2015

152900 mi
Leaking oil 
Feb 2016

157000 mi

US $1100
Seals. Leaking oil. 
Audi A6 in New York, United States
Oct 2008 - Jun 2018
Dec 2008

38000 mi
Driver side mirror sticking while unfolding. Takes several tries to have mirror return to factory unfold position. Can not close passenger side front window with driver side control. Window will open with control but not close. Broken latch on center console arm rest. 
Jan 2009

39000 mi
Rattle and groaning from passenger rear area when traveling over rough pavement.  Motor for driver side mirror fails to fully unfold mirror. New motor assembly ordered. Dealer replaced rear deck, adjusted split folding rear seats locking latches, rattling and groaning still exist. 
Apr 2009

44000 mi
replaced driver side rear view mirror, all parts except housing. 
Nov 2011

91000 mi

US $6
Cracked vacuum line, replaced line. 
Mar 2014

131000 mi

US $37
Oil leak from valve covers, both sides. Valve cover gaskets were replaced. 
Aug 2014

138900 mi

US $150
Starter died, one of the wires corroded thru. 
Jun 2015

154000 mi

US $400
Alternator failure, replaced with factory unit. 
Oct 2015

159800 mi

US $3225
Fluid leak at transmission cooler line into radiator. Coupling rusted, replaced all lines from radiator to transmission and new radiator. 
Sep 2016

172000 mi

US $980
right front wheel bearing worn, part replaced. 
Audi A6 in California, United States
Dec 2008 - Mar 2010
Jan 2009

37000 mi
Electrical system shorted. First, no sound from any system. While waiting for appointment, car would not start (sound came back on) and had to be towed. 
Audi A6 in Florida, United States
Nov 2008 - Oct 2016
Nov 2009

31000 mi
A/C compressor need replacing Driver window malfunction. "could not replicate" 
Jan 2011

42000 mi
power window regulator 
Sep 2011

47000 mi
Spring fell of of sunroof. Parts ordered. 
Feb 2013

63000 mi

US $400
Horns replaced. Front left amber driving light out following repair. Went back to have it replaced. 
Audi A6 in New York, United States
May 2009 - Jun 2014
Apr 2011

66000 mi

US $450
seat belt tensioner caused a check air bag light to illuminate 
Audi A6 in Washington, United States
Dec 2008 - Mar 2018
Dec 2011

68700 mi

US $50
Airbag light, seatbelt squib Fuel pump failed 
Feb 2013

82000 mi

US $400
Check engine light caused by faulty hose. Hid bulb replacement 
Aug 2014

89900 mi

US $800
Hot air from outer vents when AC on 
Audi A6 in Washington, United States
May 2015 - Mar 2018
Sep 2016

62000 mi

US $800
Tire sensor malfunction due to low batteries 
Audi A6 in Kentucky, United States
Apr 2015 - Apr 2017
Dec 2016

169000 mi

US $3337
I drove to work with no issues, at lunch it began with a loud ticking. Took it to the shop & they said that they found the timing chain & related parts had come apart & I needed a new engine. 
Apr 2017

169000 mi

US $200
Worn pads,e brake is acting weird now will update later 
Audi A6 in Virginia, United States
Oct 2009 - Mar 2015
Oct 2009

43000 mi
No power to the cigarette lighter - tried to replace fuse but the fuse kept blowing. Warranty covered replacement of cigarette lighter. 
Nov 2009

44000 mi
The fuel gauge would read empty but I know there was at least a third of a tank. This is a known problem and there is a wiring kit that the dealer had to order to repair the problem Left taillight malfunctions and sensor will come on in the driver control panel indicating a malfunction. This is a known problem and the dealer ordered the left taillight assembly and replaced. 
Dec 2009

47000 mi
Right rear taillight had bad seal and water was getting in to light. Taillight assembly replaced. Headlight selector knob rattled excessively. Technician put foam under the knob and problem solved 
Dec 2013

71000 mi

US $4500
Broken sunroof drain. Replaced drain, all carpet and some electronic equipment for MMI system 
Mar 2015

77000 mi
Clogged drains caused water to get behind firewall and flood underneath the carpet. Electronics and carpet were damaged. 
Audi A6 in California, United States
Sep 2008 - Apr 2012
Jun 2009

28000 mi
 
Audi A6 in New Jersey, United States
Oct 2008 - Apr 2012
Sep 2009

22000 mi
Clicking noise from front wheels. Diagnosed as front wheel bearings, parts ordered. 
Oct 2009

24000 mi
Front wheel bearing replacement eliminated clicking noise from front wheels. 
Aug 2010

42000 mi

US $80
Maintenance service under Audi Care covered scheduled maintenance this trip. Customer pay portion for wiper blade replacement only. Certified Pre-Owned warranty covered replacement of trunk latch as the trunk would not always close. $40 ded 
Apr 2012

72000 mi
Dual temp control valve failed and required replacement 
Audi A6 in Virginia, United States
Mar 2010 - Sep 2012
Mar 2010

46000 mi
Replaced front hub / bearings on one side. 
Sep 2012

98000 mi

US $9100
Started shifting roughly. Dealer said replace transmission. Between this, upcoming need to replace control arms, and $1,500 annual maintenance, decided to sell car as-is. Afterwards learned might have been able to fix with a $200 module. Replace Transmission 
Audi A6 in Pennsylvania, United States
Dec 2013 - Dec 2017
Oct 2014

109200 mi
Trouble code P2404, ongoing issue. Reset the fault and it comes back at irregular intervals. No performance or fuel economy effects. 
Jul 2015

111200 mi
P2404 re-appeared after several hundred miles. 
Audi A6 in Missouri, United States
Nov 2010 - Mar 2014
Dec 2011

96000 mi

US $200
Trunk lid would not latch. They had to replace the latch. The problem with latch started 2 years ago and was worse when it was cold (below freezing) it gradually got worse and this fall it would act up in 50 degree weather. 
Jan 2013

101400 mi

US $1000
Had to replace ESP module $700 part $300 labor. Dash alarm was going off continuously. The tech worked on diagnosis for more than 2 hours. Parts had to ordered. Car alarm signaled a break in occasionally with the lights flashing and horn beeping. It would happen randomly. Christmas eve is went off a dozen times while were in a resurant. It was the right rear door sensor $300 parts and labor. 
Nov 2013

121300 mi
Tire pressure sensor malfunction. Shop could not pin point which one failed but I was told it is likely the battery going out on them. All 5 would need to be replaced at about $140 each or about $700 Small leaks in the oil pan, oil drain plug, valve covers. Estimated about $1000 to repair. Instead I'll add a little oil occasionally. I believe I was told tie rod end that was becoming loose and should be replaced soon. Estimated $1000 
Audi A6 in Ontario, Canada
Feb 2011 - Jun 2013
Mar 2011

62620 mi
During the first month, the fuel injectors needed to be replaced (covered under warranty, thankfully - $2000). Slow to start when cold. The air bag sensor warning light became active within 3 weeks of buying it and was found to be a broken connector (also replaced under warranty - $300). 
Oct 2012

76340 mi

C $120
Trunk latch won't lock when the outside temps get cold. It's a known issue to Audi,but no recall.Part cost is about $99+tax.Takes about 1 hour to fix,and can be easily done yourself, if you are even the least bit mechanically inclined. 
Jun 2013

84940 mi

C $900
Shifting hard,2nd&3rd,3rd-4th.The computer needed reprogramming.3 hrs labour cost and 5L(@$67/litre?? WOW)tranny oil. Well,it didn't fix it, made it worse, and now they want to replace the mecatronic at a cost of $6600 !!! Don't think so! 
Audi A6 in Michigan, United States
Nov 2011 - Sep 2017
Jun 2013

46000 mi

US $200
Tire pressure monitoring system - battery failure 
Audi A6 in Massachusetts, United States
Nov 2011 - Jun 2013
Dec 2011

116000 mi

US $365
Replace driver front wheel bearing 
Mar 2012

121000 mi

US $2500
Front end noise. Original repair replaced both outer and drivers side inner tie rod. Tie rod replacement resulted in broken seal on steering rack, which resulted in steering rack replacement. 
Mar 2013

139000 mi

US $400
Doors won't lock, car won't start.....replace ignition switch 
Audi A6 in Wisconsin, United States
Dec 2013 - Jun 2018
Aug 2014

176000 mi

US $190
Tail light assembly LED brake lights shorted out after water damage to poorly sealed enclosure as a result of broken retaining tabs on the assembly. Total replacement of the driver's side tail light assembly as a result. 
Jan 2018

240000 mi

US $8
Replaced front amber marker light, took longer to access the bulb than to actually replace the bulb. 
Feb 2018

246000 mi

US $900
Brake warning light came up on HUD. New rotors and brake pads required. Takata airbag sensor recall/replacement. 
Audi A6 in Arizona, United States
Jun 2012 - Nov 2013
Dec 2012

85000 mi
timing chain seal, valve cover gasket 
Jul 2013

92700 mi

US $120
A/C Recharge Entire headlamp assembly replaced. internal left/right motor broken 
Aug 2013

94000 mi

US $300
power steering fluid leaking. clamps and hose replaced. 
Audi A6 in Washington, United States
Nov 2010 - Jul 2012
May 2011

92000 mi

US $50
Fuel sensor quit working, indicators on dash said 0 miles left and needed fuel, gauge for fuel was below empty, but tank was full. Fixed in 4 hours. Cost was $50 warranty deductible. 
Audi A6 in New Jersey, United States
Mar 2013 - Jan 2017
Aug 2016

105300 mi

US $300
Check Engine Light comes on intermittently 
Jan 2017

103000 mi
Check Engine light was NOT repaired and it remained a problem, which was the reason I sold the car. 
Audi A6 in New Mexico, United States
Oct 2013 - Jul 2018
Oct 2013

101000 mi

US $200
Fuel door no longer opened when latch was pulled. Shop replaced the actuator device. Cost for part was ~$100. Labor was ~$100. Bought the car with this problem. Unknown when problem occurred. One of the rear plate lights is reported by car as non-functional. Shop spent an hour of labor looking at it but could not figure out how to solve. $100 in labor. :-( I just live with it beeping on the dash now when i turn on my headlights. 
Nov 2016

120300 mi

US $1837
Replace front strut (Sport). Strut assembly replacement. Strut mount replacement. Replace Upper control arm assemblies. Front left - front, Front left - back, Front right - front, Front right - back. $670 for parts. $220 for labor. Power steering hose leaking. New clamp + power steering flush. $30.78 parts. $55 labor. Remove / replace seized bolts in front suspension. $17.80 parts. 
Jul 2018

128000 mi

US $62
Replaced a leaky spare tire Did a trip check, also got info on the check engine light which is some kind of sensor problem 
Audi A6 in Alberta, Canada
Dec 2009 - Jun 2017
Aug 2010

39560 mi
power steering pump replaced because of groaning noise when turning and driving slowly, eg. during parking. 
Jul 2011

46500 mi

C $100
Air Conditioning stopped working. Problem with electrical connectors to A/C unit. Connectors replaced. 
May 2014

75300 mi

C $180
Both front sway bar links were replaced 
Aug 2015

93280 mi

C $150
Replaced pulley of serpentine belt tensioner 
Sep 2016

97960 mi

C $166
Replaced purge valve solenoid of evap. system in the fuel tank and replaced fuel cap.  Updated technical service bulletin for the parking brake. However, brake warning light still illuminates intermittently. 
Mar 2017

102300 mi

C $800
Replaced valve cover gaskets and front cam cover gasket as they were leaking oil. Reinforced the connection of plug-in connector for rear seat airbag sensor under the seat as the warning light was illuminated. ABS module replaced. 
Audi A6 in Illinois, United States
Oct 2009 - Nov 2015
Jan 2010

35000 mi
Only repair has been to replace drivers side air bag cover which was rattling. Took months to get part from Germany. 
Sep 2014

80000 mi
TPMS warning keeps coming on, no issues with tire pressure. TPMS replaced. 
Audi A6 in Colorado, United States
Feb 2014 - May 2018
Aug 2014

94100 mi

US $770
Ventilation for heater was stuck open, sending full heat to side and rear vents. Required a new Audi dealer supplied part ($500 for part alone) to correct issue. 
Dec 2014

97000 mi

US $271
One HID bulb was near dead. Replaced both at same time. 
Jul 2016

106500 mi

US $240
Car shows a brake light out in dash. Brake lights are LED, there is no actual malfunction in the brake lights. 
Dec 2017

114000 mi

US $330
Brittle coolant expansion tank hose connection split and sprayed coolant all over engine bay. Repair required entire hose assembly and brackets be replaced (they were old and beyond repair). Parts were limited in my major metro area so it took an extra day to wait for the required parts. 
May 2018

118000 mi

US $160
We required a replacement of the entire LED right rear brake light unit in order to fix this issue. It was deemed to be due to corrosion on the circuits within the brake light unit. The market has responded with several aftermarket brake light housings. Cost was $160 for the unit. Replaced by owner (15 minute job, very easy). 
Audi A6 in Pennsylvania, United States
Aug 2011 - Oct 2011
Sep 2011

72000 mi

US $250
Check Engine Light - EVAP purge valve replaced. Rear parking assist buzzer failed, replaced 
Audi A6 in California, United States
Jun 2010 - May 2014
May 2011

87000 mi

US $480
Upper control arms replaced, alignment performed, two new tires purchased, mounted, balanced, installed. Upper control arms replaced, alignment performed, two new tires purchased, mounted, balanced, installed. 
Sep 2011

92000 mi

US $1019
Replace vacuum pump, timing cover gasket Replace vacuum pump, timing cover gasket 
Oct 2013

140000 mi

US $145
I needed to have the sunroof repaired. The rubber on some springs had failed and they ordered a replacement kit and installed it in about 45 minutes (after the kit arrived). 
Audi A6 in Pennsylvania, United States
Sep 2010 - Dec 2016
Feb 2012

90700 mi

US $300
Left bank failure due to broken harness cause check engine light to appear. 
Aug 2015

141000 mi

US $4500
Leaking head gasket 
Sep 2016

169000 mi

US $2500
The throttle body broke. 

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2006 Audi A6 4-door

turbocharged 4-cylinder diesel CVT 2WD

Audi A6 in Netherlands
Aug 2009 - Dec 2014
Sep 2009

55800 mi

€400
No power available while driving thru mountains in Italy. Replacement of turbo sensor ($7) was required. Claimed 7 hours for diagnosis and repair. 
Sep 2011

76260 mi

€1200
dual mass flywheel broken 

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2005 Audi A6

Engine not specified

Audi A6 in Ontario, Canada
Mar 2012 - Dec 2012
Oct 2012

159620 mi
Lower outside valance on both drivers and passanger front doors were separating away from the door at the top of the valance. Audi replaced and painted both doors and trim at no cost under the warranty for rust. 
Audi A6 in Estonia
Sep 2011 - Nov 2011
Nov 2011

141360 mi
Power steering pump hose leak. Had to refill fluid every four days. Random starter fault when sold. 

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2005 Audi A6 4dr Wagon

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

Audi A6 in Sweden
May 2014 - Mar 2018
Aug 2014

107500 mi

$165
Car didn't recognize key. Towed it to dealer who told me that it needs a new transponder, the entire steering column needs to be replaced! Costs at least $2000. Clearing of faultcodes made all work OK since, hope it doesn't come back! 
Apr 2015

112840 mi

$800
Change of ABS main module. Amount in US$ (800) 
Feb 2018

129580 mi
ABS / antitheft problem. The ABS is not functioning, it shows ABS / ETS fault. Needs to replace the ABS valve/main module. Also the steering column actuator is faulty, symptoms are that you can't turn on the ignition or start the car. Happens from time to time, you don't know when. My solution is to leave the key in the ignition and lock the car with the spare key, or reset the fault code with VCDS. Needs to replace the whole steering column (including the anti-theft box), costs around 2500 USD in an Audi workshop (and around 1500 in an non-Audi workshop). 

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2005 Audi A6 4dr Sedan

335-horsepower 4.2L V8 6-speed shiftable automatic AWD

Audi A6 in Colorado, United States
Jul 2010 - Jun 2011
Aug 2010

74023 mi

US $3400
new steering column lock out sensor broke and whole column needed replaced all new upper control arms new tires because it wore one down when the column went haywire new steering column lock out sensor broke and whole column needed replaced all new upper control arms new tires because it wore one down when the column went haywire 
Audi A6 in New Jersey, United States
Dec 2011 - Sep 2013
Sep 2013

68000 mi

US $350
Power steering failure 
Audi A6 in Alberta, Canada
- Apr 2010
Jan 2010

C $650
start failure 
Mar 2010 Car showing severe electrical problems. Battery drain. Repair trip to diagnoze problems 
Apr 2010

C $250
electric brake failure esm failure 
Audi A6 in Pennsylvania, United States
Feb 2011 - Mar 2011
Mar 2011

89000 mi

US $1300
Car stalled and would not start. Required new fuel pump and emissions sensor 
Audi A6 in Louisiana, United States
Jan 2011 - Mar 2013
May 2011

35500 mi

US $1036
Power steering hose has a leak. They quoted me $254.58, for part and labor. Originally brought car in for 35k service, but had noticed a slight issue with power steering pump. Also, front brakes and rotors need to be replaced at $511.50. 
Oct 2011

39000 mi

US $1965
Transmission was leaking significant amount of ATF. Dealer replaced gasket and re-filled transmission. Water cooled altenator started making a horrible noise; apparently a bearing failed causing the problem, this bad boy cost around $1000 to replace. 
Sep 2012

46000 mi

US $1500
sway bar bushings wore out & needed to be replaced. bushings failed on Upper linkage (control arms) needed to be replaced 
Audi A6 in Ontario, Canada
Oct 2010 - May 2012
Nov 2010

53320 mi
Both front windows were slow when rolling up or down. Ordered window guides and replaced on another trip. 
Jan 2011

54960 mi
Takes a long time for engine to reach operating temperature. Shop didn't find any problems as the engine was already warm by the time it was driven to the shop.  
Apr 2011

57940 mi
Engine would take a long time to reach the normal operating temperature. Thermostat has been replaced. Both front power windows were rolling up or down very slowly. Regulators replaced. Problem remained. 
Jun 2011

62620 mi
The front windows are rolling up and down too slowly. parts ordered. In addition, the black paint on switches and buttons are bubbling or coming off, new switches ordered. 
Jul 2011

62920 mi
Parts installed, slow windows and switches fixed. 
May 2012

70680 mi
Trunk Lid struts never worked correctly after dealer replaced them. Nothing wrong with the original set. 
Audi A6 in Tennessee, United States
Nov 2010 - Feb 2011
Oct 2010

48965 mi

US $308
Broken Trunk Latch 
Jan 2011

50061 mi

US $708
Valve Cover Gasket Valve Cover Gasket 
Feb 2011

50061 mi

US $1000
Front Control Arm Bushings 
Audi A6 in New York, United States
May 2012 - Aug 2014
Feb 2014

137400 mi

US $10000
Timing chain and tensioners were replaced, as was the torque converter 
Jun 2014

141000 mi
Manifold was replaced but it did not correct the problem, so I was not charged anything. 
Aug 2014

141000 mi
Power steering hose broke. Problem with engine related to manifold never fixed. 
Audi A6 in Connecticut, United States
Jun 2012 - Jul 2012
Jul 2012

82000 mi

US $1300
car sputters when accelerating,slight cliking outside car when turning the wheel,car vibrates when turning very sharp or doing a uturn 
Audi A6 in Ohio, United States
Apr 2015 - Dec 2015
Jul 2015

60200 mi

US $500
Replaced headlight due to faulty motor 
Audi A6 in Pennsylvania, United States
Jun 2014 - Apr 2017
Jul 2014

104300 mi

US $1000
Hot air was blowing out of the vents, even though the AC was on. On second visit, we replace the valve and the problem went away. Dealers don't know about this issue -- Google it and you will find it. 
Feb 2015

109700 mi

US $2200
Replaced ABS module and pump 
Mar 2016

114000 mi

US $2200
control arms for steering which were wearing for a long time 
Jan 2017

110800 mi

US $500
Very slow leak in tube caused coolant to drip onto main belt, both needed to be replaced. 
Audi A6 in Pennsylvania, United States
Feb 2014 - Jun 2018
Mar 2014

174000 mi

US $3000
Timing chain tensioner failure, caused bent cam chain to skip tooth, bent valves. 
Aug 2014

175000 mi

US $75
Engine Fan harness retainer broke, allowing wire to rub against alternator belt. Wires wore through, alternator belt damaged. 
Mar 2015

183000 mi

US $205
Bank 1 Oxygen sensor 
Jun 2015

189000 mi

US $600
AC Compressor failed. Compressor, Recieverdryer, and orifice tube replaced. System flushed. 
Apr 2017

202000 mi

US $163
Oil check valves under intake manifold were replaced, along with all gaskets for intake. 
Mar 2018

206000 mi

US $500
Power steering return hose leak, required pulling lock carrier to replace. 
Audi A6 in Sweden
Apr 2013 - May 2013
May 2013

111600 mi

$150
Ignition box failure cylinder 3 
Audi A6 in New Jersey, United States
Nov 2012 - Mar 2015
Dec 2012

99000 mi
Fluid leak. Mechanic found loose clamp on a pump he replaced 6 months ago. Fixed loose clamp for free as it was his mistake. Trunk will not latch closed. Played with latch using key and got it to work eventually, but the problem returns periodically. 
Feb 2013

100200 mi
Power steering pump, which was only 13 months old, failed. Replaced again by mechanic under warranty (even though slightly out of warranty) 
Feb 2015

122000 mi

US $300
Sensor in Ac dead. Part replaced. 
Mar 2015

122000 mi
Many unrepaired problems. Steering pump leak, steering column sensor. Entire engine would have to come out to replace the entire steering column. Broken AC. Broken nav. Broken sunroof. 
Audi A6 in Pennsylvania, United States
Apr 2013 - Aug 2015
May 2013

141200 mi

US $780
Coolant leak in the radiator 
Oct 2013

148200 mi

US $2390
High oil consumption. They replaced the valve cover gaskets, it helped some but I'm still going through oil faster than I should. Engine mounts broken, caused warning lights and rough running engine Broken sway bars 
Jul 2014

162000 mi

US $866
Oil leak in oil cooler, possibly fixed. Replaced coolant reservoir. Issues with timing / check engine light. Light is off for now, but timing issue persists. 
Sep 2014

164000 mi

US $50
Leaking power steering hose 
Audi A6 in Michigan, United States
Dec 2014 - Dec 2014
Dec 2014

89000 mi

US $4200
Transmission blew out and had to be completely rebuilt. 
Audi A6 in Connecticut, United States
Jun 2011 - Apr 2016
Dec 2011

68000 mi

US $200
trunk latch not engaging 
Apr 2016

149000 mi
timing chain 
Audi A6 in Arizona, United States
Feb 2007 - Mar 2010
Apr 2007

23000 mi
airbag light in dash on. This was the third time it has been back for the same problem. replaced module in dash, replaced seatbelt sensor in back seat, then replaced entire seatbelt mechanism. LIGHT is back ON!! Wiperblades replaced and center console doo 
Dec 2009

49000 mi

US $50
Front sway bar bushings and control arm bushings worn and creaking. air bag warning light came on and required software update. 
Audi A6 in New Jersey, United States
Jul 2009 - Jul 2013
Jan 2010

60000 mi
Slow leak from wiper wash reserve tank. Headlight washer pump replaced under CPO warranty. Right rear light intermittently out. Replaced whole rear light assey under CPO warranty. Wind noise in sunroof after replacing broken springs in sunroof sunshade. Fixed it myself by replacing weather seal in sunroof. 
May 2010

65000 mi
Ticking noise from front wheels noticable on indoor parking lots. Dealer replaced left & right lower steering arms saying the ends are worn out but ticking noise still exists. Don't even know why steering parts were replaced. 
Sep 2010

72000 mi
Nothing. Could not replicate problem! Oil leak detected on valve cover. Was told during 65K maintenace that was catetory 3 and had to be developed to category 1 in order to be covered under CPO. Oil loss increased and so took it in and was repaired by replacing gasket. 
Aug 2011

86000 mi

US $300
A/C Not working and performed Total A/C Diagnostics. Found low charge of R134A A/C Gas and Re-Charges gas. Parking Sensor Buzzer sound is breaking up. Part is only $20 but Labor will cost another $240 so decided not to fix problem. 
Sep 2011

86000 mi
Check engine light came on. Reset ECU with VAG-COM at the dealer and problem dissappeared. Computer was showing lean fuel to air mixture but could not fine cause of problem 
Nov 2011

90000 mi

US $5
Xenon light leveling motor defective warning light came on but dissappeared by itself. Problem has not returned for another 2 weeks. Side marker bulb out warning lit. Bought bulb at Walmart for $5 and self repaired. Warning light is now off. 
Apr 2012

96000 mi

US $300
Check engine light on. Intake vacuum leak found. Intake hose torn found through visual inspection. Part replaced and error codes reset. 

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2005 Audi A6 4dr Sedan

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

Audi A6 in Massachusetts, United States
Jan 2008 - Mar 2013
Jul 2009

80000 mi

US $175
Normal trip when something broke, can't remember what really, mostly little things. 
Oct 2009

88000 mi

US $200
Repair the Back-up sensor 
Jun 2011

116000 mi

US $400
Right front wheel bearing. 
Feb 2012

127000 mi

US $1200
Weird flywheel bolt sheering issue, almost cost me my life, but got it off the road before crazy bad damage. 
Mar 2013

137000 mi

US $2500
Needed a new steering rack. Decided to dump the car after the repair. 
Audi A6 in Massachusetts, United States
Dec 2007 - Jan 2011
Oct 2009

64200 mi

US $50
Fuel gauge fluctuates 
Audi A6 in California, United States
Jan 2015 - Jun 2018
Jan 2015

118000 mi

US $145
I don't know what subsystem was involved because the issue is an intermittent stalling problem which the shop could not reproduce and therefore could not diagnose or repair. The $145 I paid was for utterly unsuccessful diagnostics. 
Apr 2016

125000 mi

US $1030
During routine maintenance, shop noticed brake vacuum pump had severe oil leak. Replaced pump, $394 for the part. 
Apr 2017

129000 mi

US $306
Initially I got a dash warning about "Left dipped headlight" (dipped apparently means low beam). Shortly thereafter, I got a dash indicator that seamed to be a light bulb with an X through it, which means a light outage. Sure enough, the left low-beam HID headlight was not working. The repair shop replaced the bulb, which seems to have cured the problem. 
Aug 2017

131000 mi

US $220
"Interim" solution for for Takata front passenger-side airbag inflator was installed. I believe the repair was replacement of the inflator with an improved version. Plugged rain drainage openings in sunroof area and cowl (base of windshield) area were cleaned out. It was believed that clogging of these drainage openings was leading to water intrusion into passenger compartment during heavy rain. After our most recent rain, the passenger side footwell carpeting was soaked again, so I consider the "repair" completely UNSUCCCESSFUL. 
Sep 2017

131634 mi

US $312
Gas-charged hood support strut had failed so that it would no longer support the hood. I ordered a third-party aftermarket part from a local auto parts store and installed it myself. Check Engine light went on. My OBD II code scanner showed code P2404, which indicates that the sensor in the EVAP leak detection pump system is returning a value that is out of the acceptable range. Technician at the shop investigated and determined that the EVAP system's purge valve had failed. The valve was replaced with a new one, but I was warned that once this problem was cured, one or more other EVAP system faults might become apparent. No additional issues have surfaced yet. 
Oct 2017

131842 mi

US $609
Check Engine light came on. I checked with OBD-II scanner and found code P0455-- EVAP emissions control system leak detected (no purge flow or large leak). The shop determined that the EVAP system's leak detection pump had failed, so they replaced it. 
Nov 2017

132064 mi

US $290
Recently, whenever we've had significant rain, I found the front passenger seat footwell carpeting soaked. The dealer's previous attempt to solve the problem, by cleaning out the sunroof and cowl drains, did nothing to alleviate the problem. The independent shop had a technician who had seen this problem before and suspected a leak in the drain tube running from the right front corner of the sunroof and down the right A-pillar. The tech had to remove the headliner to get at the drain tube. He found an separated joint in the tube and clamped the joint to secure it. This has apparently solved the problem. Check Engine light wen on again. My OBD scanner showed me that codes for the Evap Control Purge Valve and the Evap Control Leak Detection Pump, previously present separately on recent occasions, were now BOTH present, even though both components had been replaced. The technician could detect no other issues and cleared the codes. He told me that he HOPED these codes had popped up as a result of incomplete clearing of codes after the most recent repair. There was no charge, since the recent Evap Control System repairs were under the shop's repair warranty. In the sixty or so miles I have driven since I got the car back, no warnings have appeared. 
Jan 2018

132000 mi

US $30
HID headlight lenses had become quite cloudy. I had a "headlight restoration" done with a coupon special. Shop (Pep Boys) polished the lenses and applied some sort of protectant. The lenses don't look as good as new but ARE vastly clearer than they were before the restoration job. 
Feb 2018

132860 mi
Driver's door has not been responding reliably to remote unlocking. Most of the time it doesn't work. Shop tech told me Audi has TSB out about the central lock system and that there is a software update that is best done at the dealership service department. Tech said the software update might not be all that is needed to fix the problem, but it should be done first, before any mechanical repair is attempted. 
Mar 2018

133146 mi

US $870
The drivers' door had recently stopped responding reliably to the keyfob remote control for unlocking. Most of the time, I have had to insert the key into the lock to unlock the door. The dealership replaced the lock assembly on the driver's door. 
Audi A6 in Maine, United States
Dec 2007 - Nov 2008
Sep 2008

42000 mi
Right rear wheel bearings diagnosed as failing. Right rear wheel bearings replaced. 
Audi A6 in Pennsylvania, United States
Dec 2007 - Jan 2014
Jul 2008

72000 mi

US $50
1. leak detect sensor replaced 2. vacuum hose replaced 3. engine control module replaced (root cause) 
Dec 2008

78000 mi
Trunk will not latch. 
Jun 2009

87000 mi
spring kit for sunshade in sunroof replace after springs had fallen out. 
Jun 2011

121000 mi

US $500
CV joint broken, noisy; replaced. electronic parking brake malfunction, noticed via warning light. Not I function I use. $400+ (wiring harness + label) Will repair soon as I assume need to pass inspection in September 
Mar 2013

149000 mi

US $1600
Replaced wiring harness, controller, and switch for electronic parking brake. 
Jan 2014

78000 mi

US $1900
Multiple check engine codes for cylinder misfires and cam advance. Dealer replaced throttle body and 2 Cam Adjusters. Check engine light remains on after services, need to replace timing chain (a 25+ hr labor) job. will not replace. 
Audi A6 in New Hampshire, United States
May 2008 - Jan 2013
Jun 2008

39000 mi
the button on the drivers side door to lock/unlock door with advanced key was inoperable Surround sound settings resetting to factory settings. Not able to select station presets, cursor kept jumping to top of screen. 
Mar 2011

106000 mi

US $4341
Diagnosed with a stretched timing chain. Replace all chains, sensors, pulleys and gaskets. 
Dec 2011

129000 mi

US $1100
Rear plate lights not lighting. Problem with one the the computer modules. 
Jan 2013

US $1030
Temperature sensor failed causing engine to run lean and overheated catalytic converter Coolant leak at one of the phalanges. Belt tensioner failing causing serpentine belt to rattle. Amplifier failed causing loss of radio, nav, Bluetooth, cd player. 
Audi A6 in Alabama, United States
Jan 2014 - Jun 2016
Feb 2014

100000 mi

US $225
CEL since 2010. Tested both the LDP and the vacuum lines, narrowed it down to an ECU. Exchange ECU with a used ECU and code the ECU to the car. 
Oct 2014

108800 mi

US $50
Sway bar bushings were worn and needed to be replaced. 
Feb 2015

115600 mi

US $170
valve cover gaskets and valve cover bolts 
Audi A6 in Alabama, United States
Oct 2008 - Mar 2014
Jul 2010

77000 mi

US $50
headlight system that follows direction of wheels 
Dec 2012

127000 mi

US $5000
rebuilt engine. 
Apr 2013

131000 mi
rear left brake and turn signal fail to operate intermittently 
Mar 2014

141000 mi

US $6000
timing chains failed. Destroyed engine. rebult engine. Chains failed again. Scrapped car. Will not ever buy another Audi 
Audi A6 in Alabama, United States
Jan 2016 - Dec 2016
Feb 2016

58300 mi
TPMS sensors needed replaced. Disabled the TPMS system by vag com. Transmission service- normal 
May 2016

60000 mi

US $1750
AC compressor and dryer R & R. 
Jun 2016

60000 mi

US $750
Replace fuel pump 
Audi A6 in Alabama, United States
Mar 2016 - Jun 2016
Jun 2016

170000 mi

US $1200
All new control arms after only 2 years. Made the mistake of buying cheap ones off EBAY buy the German ones even those are a gamble if they aren't stamped AUDI 
Audi A6 in Minnesota, United States
Jan 2017 - Mar 2017
Feb 2017

83000 mi

US $807
Wheel bearing needed replacing. Also had coolant leaks fixed and power steering clamp replaced. Ended up selling the car soon after as it was costing too much. Would never buy an Audi again. 
Audi A6 in New Jersey, United States
Jan 2009 - Jan 2013
Jul 2009

72000 mi
cleared code for "gross evap leak" 
Audi A6 in Quebec, Canada
Mar 2017 - Jun 2018
Dec 2017

76260 mi

C $160
Leaky cooling hose. 
Audi A6 in Ohio, United States
Dec 2007 - Sep 2008
Jun 2007

19000 mi
Exterior chrome trim surrounding windows and trunk lid replaced under warranty due to waterspot-like corrosion. Overhead interior light panel replaced under warranty due to broken retaining clips, wouldn't stay in place. 
Audi A6 in Florida, United States
- Jun 2008
Jun 2008

17400 mi
Repair locking mechanism in driver side door 
Audi A6 in New Jersey, United States
Nov 2008 - Mar 2010
Dec 2008

44000 mi
Entire Multi-Media Interface (MMI) died. No radio, cd, satellite, phone, nav or set-up features. 
Audi A6 in Florida, United States
- Jan 2008
Jan 2008

49500 mi
Replaced Catalytic converter 
Audi A6 in Tennessee, United States
- Aug 2008
Jun 2008

32000 mi
Replaced CD changer in glovebox because it was staticy and wouldn't play even brand new clean CDs. Warranty item 
Aug 2008

37000 mi
Replaced drivers interior door panel because the vinyl material CRACKED by the door handle. Covered reluctantly under warranty by AUDI. Clearly a manufacturers defect in the trim panel -- the stresses cracked it from opening and closing the door. 
Audi A6 in California, United States
Feb 2016 - Jun 2016
Feb 2016

93000 mi
Failed Fuel injector, cyl 3 
Audi A6 in Illinois, United States
Feb 2007 - Dec 2012
Jan 2007

31000 mi
Fix power input closest to front dash 
Audi A6 in California, United States
Feb 2010 - Jun 2011
May 2010

40000 mi
Moonroof leak. Fixed for free under recall notice. 
Audi A6 in Indiana, United States
Nov 2010 - Jun 2011
Dec 2010

78000 mi
ongoing problem with driver-side rear turn signal/brake light that intermittently stops working. Dealer replaced taillight assembly for 3rd time. Unsuccessful - again! 
Jan 2011

US $765
Service manager said they replace all the light bulbs with genuine Audi parts - thought maybe they hadn't done that previously. Still unsuccessful. Gas flap would open on its own when I got into the car. They were able to reprogram some code and successfully fixed that problem. A valve seal (driver's side cylinder head) suddenly started leaking and the engine began to smoke - while my car was in the shop! Replaced three seals. 
Feb 2011

78600 mi
I am still waiting for the dealer to acquire a loaner car for me to use while they try once again to find a fix. In the meantime, I'm trying to avoid making any left turns or changing lanes on the highway. 
Jun 2011

80000 mi
Brought Audi to dealer for routine maint. end of June. They said needed brakes (min. $500). Decided to give up on electrical problem & spend no more $$ on the car. Traded for a 2011 Nissan Maxima. I feel cheated by Audi Company. 
Audi A6 in Illinois, United States
Sep 2009 - Mar 2011
Jan 2010

61000 mi
TSB was used to repair the battery being constantly drained. 
Feb 2011

66000 mi

US $890
Power steering line was leaking. Replaced and flushed system out Rear Defrost is not working. Fix was to replace AC head unit. $1000 with parts and labor = Living with no rear defrost! Transmission kicks when cold going in and out of 3&4 gear. Very noticeable, but dealer "Can not replicate" Right Front Wheel Bearing replaced Right rear taillight was grounding out causing all right rear lights to fail 
Audi A6 in New Jersey, United States
Oct 2010 - Jun 2011
Nov 2010

90100 mi

US $1950
95000 mile service. Upon pickup heard tapping under hood at right side head. Reported to dealer and was told to drive it and it would go away. Towed to dealer with no start. Timing chain tensioner failed right side cam skipped timing. Towed to dealer with no start. Timing chain tensioner failed right side cam skipped timing.  
Audi A6 in Idaho, United States
Sep 2010 - Aug 2013
Jul 2011

85700 mi
Sunroof switch quit functioning and was freewheeling. Known TSB available for the problem and switched replaced at no cost. 
Audi A6 in Texas, United States
Dec 2008 - Mar 2010
Jan 2009

45000 mi
Smoke from the front of the car. Oil cover not put properly from the last oil change and oil was leaking out and spilling on engine. 
Audi A6 in Florida, United States
Apr 2010 - Jun 2011
Jun 2010

60000 mi

US $800
Airbag warning light came on. Needed to replace ignitor. 
Audi A6 in New York, United States
Jul 2010 - May 2017
Sep 2010

53000 mi

US $400
Oil leak, check engine light. Had to return it again because they did not completely fix oil leak. 
Jan 2011

56000 mi

US $700
trunk would not operate, needed 55,000 maintenance. oil change, electrical etc. 
Jan 2012

57300 mi

US $219
Repair of a problem 
Aug 2013

84000 mi

US $2100
ABS system had to be repaired. I kept hearing a clicking noise when I pulled out of my driveway.  
Apr 2014

88500 mi

US $470
Adaptive headlight is out. For replacement over 1000.00. 
Jan 2015

88200 mi

US $700
Problem with left brake, turn signal and Parking brake light. Electrical 
Apr 2016

105500 mi

US $2100
Engine light on. Dealer said they fixed it, but several days later the light came back on. Hope it's not the transmission. Probably the gas tank, which costs around $2,100. (This possibility was suggested back in 2014.) Update: light later went off again and stayed off for a while. 
May 2017

116000 mi
Engine light is back on, the car is shaking. Went to the dealer/repair and they told me it would cost 15,000 for a new engine or get a new car. Furious, I took the car to a repair shop near my home that specializes in foreign cars. They will be looking at the problem next week. The car has been shaking and engine light comes on. The second shop also says a new engine is necessary, but would not make financial sense. So time for a new car. Will be parting the Audi out or donating it. 
Audi A6 in Ontario, Canada
Jun 2009 - Oct 2010
Jul 2009

68200 mi

C $750
Fuel injector #2 failed, needed to be replaced. Apparently it's an AUDI "blocked" part. This means that the replacement must be done at a dealership (can't be taken to a 3rd party garage) 
Sep 2009

68820 mi

C $1700
Access/Start Control unit was fried. The car would not start. Part had to be ordered from Germany. Audi of Canada refuses to acknowledge that the TSB should have been covered under warranty as it was a known issue for at least 2 years. 
Jun 2010

75640 mi

C $40
The warning for the rear right brake/turn signal light goes on intermittently. However, the bulb is fine... seems to be an LED contact problem. Likely, the whole fixture needs to be replaced @ $300 (AUDI likes this approach a lot). 
Sep 2010

77500 mi

C $600
Front passenger headlight burned out, $350 after tax... Did the carbon injector cleaning service for $250, we'll see what that accomplished. 
Oct 2010

77500 mi
When sold the brake light was still intermittently not working (tripping the alert on the dashboard) - by extension the right turn signal wouldn't work either because it was the same light. 
Audi A6 in New Jersey, United States
Nov 2010 - Dec 2011
Mar 2011

62000 mi

US $150
Ignition coil #5 replaced. 
Dec 2011

73000 mi

US $50
rear fog lights. 3 or 4 different audible signals indicate bulbs out, but I cant really see which ones are out even when I have someone else in car and look myself. Don't even know what a 
Audi A6 in Ireland
Feb 2012 - Sep 2014
Jun 2012

58900 mi

€110
Throttle valve control problem . P1545 
Apr 2013

63100 mi
Throttle valve control unit replaced part no Ae4015950j 
Audi A6 in California, United States
May 2008 - Sep 2017
Feb 2008

27625 mi
Airbag light came on. Attributed to software fault. Software updated. Engine light came on.Found multiple ignition misfires, swapped coils and sparks plugs, to return @later date. 
Nov 2008

33874 mi
Airbag light is on.Found faulty seat belt buckle shorted out, replaced. 
Jan 2009

36895 mi
Engine light is on, traced to a faulty key tumbler.Replaced, also found sporadic misfires in cylinder 1 and 5. Switch may have been the cause for misfire. Start switch inop at times. Replaced 
Mar 2009

38147 mi
Engine light is on. Vehicle misfiring due to faulty intake system, used fuel injection service to clean intake system. 
Jun 2009

40576 mi
Engine light ON. TSB 2011719/6 replaced all lifters and rocker arms. The symptoms were excessive cold start misfires fault codes. Engine light goes on and off. Fault codes for ramdom multiple misfires. Factory service bulletin ordered all rocker arms,lifters and corresponding gaskets replaced. 3 spark plugs replaced. Hope the misfire problem has gone away! 
Aug 2009

42486 mi
Timing Chain Cover flared in right side causing to leak oil which dripped into the exhaust creating smoke and bad odor.Cover was replaced by dealer. There was an update to the software, but dealer did not install because was not part of warranty ($250) 
Dec 2009

46000 mi
More problems with engine light coming on. Coils are supposed to be replaced by manufacturer, but owner needs to wait for call from dealer. Car is out of warranty if yellow light is due to another reason owner will be charged. Had enough of Audi!!!!! 
Jan 2012

57000 mi

US $220
Intake manifold removed, many parts replaced due to continuos engine misfiring, this problem is occurring since car had 27000 miles, coils were never replaced even when Audi ordered to do so by dealer. Rear lid latch failed to lock 
Mar 2012

60000 mi

US $632
They found several problems inside engine like broken valve springs. They replaced quite a few parts and rebuilt half of the engine. I only paid about 15 percent of the total. Finally after two years the car is performing well. 
Audi A6 in North Carolina, United States
Aug 2010 - Dec 2013
Oct 2010

95000 mi

US $800
Suspension "boots" worn and replaced.  
Jan 2012

109000 mi

US $2500
Head gasket Replace fuel pump and filter Replace water pump and timing belt Replace surpentine belt and roller CV boot replacement 
Dec 2012

124000 mi
Fluid dropped levels in brakes. Bled and replaced, checked for leaks, nothing found. 
Mar 2013

125000 mi

US $235
Vibration mount had deteriorated. Replaced. 
Aug 2013

128600 mi
Vents run hot air when A/C is indicated. 
Dec 2013

130000 mi
HVAC duct issue never fixed, would have been $1,200. 
Audi A6 in Illinois, United States
May 2009 - May 2012
Jun 2009

42000 mi

US $160
The car was taken in early for it 45,000 service. I had to pay full price for the service aprox $110. The A/C compressor was broken so the part was ordered, then installed a week later. It was covered under the CPO Warranty. $50 deductable CPO warranty 
Jul 2009

42000 mi

US $50
The window washing fluid motor was replaced. 
Aug 2010

61000 mi

US $128
Air Conditioning unit was recharged with Freon 
Nov 2010

67000 mi

US $140
Replaced fuel pressure sensor and fuel filter, problem still exists.  
Dec 2010

68000 mi
Low pressure fuel pump replaced. Cold start missfire CEL and rough idle during cold weather start up sometimes the car would die. Dealer said the car had carbon build-up on the intake valves, dealer suggested using seafoam instead of taking apart intake and manually clean I elected to try the seafoam first and it helped so for now I will not have the intake valves cleaned by the dealership. 
Jun 2011

77000 mi

US $45
Fuel pump had to be replaced again. Fuel filter was also replaced. Tech said the fuel filter was clogged causing the fuel pump to fail. 
Jan 2012

75600 mi

US $1400
The car had the intake removed and excessive carbon deposits removed from the intake valves. Vacuum evac pump replaced Spark plugs replaced 
Mar 2012

90000 mi

US $1100
The car was in for to both a high pressure fuel pump replacement and a low pressure fuel pump replacement 
Audi A6 in Maryland, United States
Mar 2009 - Oct 2014
Apr 2009

59000 mi

US $125
found scrub pad in throttle body from previous service 
Jan 2014

106000 mi

US $1000
Leaking upper radiator hose. valve cover gaskets leaking 
Audi A6 in Indiana, United States
Dec 2011 - Mar 2012
Jan 2012

71800 mi

US $800
Replaced heating unit and control unit for heat/ac 
Audi A6 in Massachusetts, United States
May 2009 - Aug 2012
Nov 2009

76000 mi

US $1284
Heater blowing hot and cold air from random vents; fixed through TSB. New battery drains prematurely; brake light TDB. Advanced Key stopped working; replaced start/stop button. Drivers Auto Down does not work consistently; replaced window pad. 
Jun 2010

83000 mi

US $210
Driver and passenger side washer nozzle. 
Aug 2010

84800 mi

US $1400
Front passenger occupant sensor need to be replaced. Airbag light came on. Part was not in stock; dealer had to order from Germany, est shipping 5 days, repair 4 hours max. 
Dec 2010

89000 mi

US $1200
Both front upper control arms and sway bar had to be replaced. 
May 2011

93000 mi
driver side brake lamp: replaced assembly because LED 
Jul 2011

95000 mi

US $200
Right DRL out, and check engine light due to evap leak. 
Jun 2012

105000 mi

US $1600
replace ABS module 
Aug 2012

105000 mi

US $1600
SRS Airbag light on. Needs new center rear seat belt sensor. 
Audi A6 in California, United States
Jun 2009 - Dec 2014
Jul 2009

56000 mi

US $825
car was diagnosed with a #3 fuel injector that was stuck wide opened, and one side of air intake manifold was not opening/closing correctly.fuel injector had to be replaced. also had all spark plugs replaced. primary cost of repair went labor. ouch! 
Apr 2012

106000 mi

US $2000
In-take manifold and housings malfunction and to be replaced. 
Mar 2014

142000 mi

US $100
Engine head valves were leaking oil for about a year. Replaced valve gaskets and spark plugs on both sides. Peripheral air vents occasionally blowed hot air when ac was on. Found fix online. AC valve module needed cleaning. 
Jul 2014

151000 mi

US $10
There was a vacuum leak causing check engine light to come on. Check and saw a section of vacuum hose that needed replacing. That did the job. 
Dec 2014

160000 mi

US $700
Coolant leaking at air cooler-engine connection due to wore gasket. Oil leaking from driver side at the back of engine. Cause was due wore sealant in time chain caps. Caps removed and added new sealant. 
Audi A6 in Iowa, United States
Nov 2011 - Jul 2018
Jan 2012

67000 mi

US $360
Took it for transmission flush. Vehicle went in 'safe mode' two days later. Returned to dealership for repair. Turned out it was low on fluid, tech did poor job. Audi does not list transmission flush ever to be done so DONT! 
Jan 2013

70000 mi

US $10
Light bulb burned out, day running side light, front right side, inside the bumper. 
Mar 2015

108000 mi

US $220
Rear differential left and right output shaft (axle) seals leaking. Replaced. Parts $70, labor $150 
Feb 2016

117300 mi
Brake fluid replaced 
Jun 2016

118000 mi

US $300
ABS module failed, removed and sent for rebuild to indie near KC. Also connector for rear parking brake motor (electric) failed, corroded broken wire. Patched broken wire. 
Aug 2016

119400 mi

US $15
Connector to passenger side parking brake failed, wire rusted out and broke. Dashboard brake warning light on. Disassembled connector, wire extended and soldered. 
Nov 2016

123000 mi

US $15
Vacuum hose broken due to age and heat (hard plastic). Replaced with aftermarket vacuum hose from Auto-zone. 
Jan 2018

130000 mi

US $465
Replace and reprogram battery,  patch RR parking brake harness, diagnose failing module and install optical loop (temporary) fix 
Jul 2018

133000 mi

US $200
All lower door trims rusted on the inside, thus creating big, ugly gap at the top of each of them. Metal part behind plastic that engages with the door pins rusted, swelling created buy rust flakes caused unsightly gap. I bought used trim pieces, different color from eBay, had them repainted and fitted on my car. They are from little newer model and it seams Audi has slightly changed this design, hopefully for the better. New replacement parts, had I bought it from Audi dealer were $150 each (x4) plus you have to paint them (primed only). It is ridiculous what these companies do to us. Clearly flawed design that customer has to deal with as soon as car is out of warranty. 

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2005 Audi A6 4-door

turbocharged 6-cylinder manual 2WD

Audi A6 in Great Britain
Jun 2016 - Jan 2018
Sep 2016

114000 mi

£1000
Needed a new Clutch and Multi Flywheel 
Oct 2017

118000 mi

£345
Front offside shock absorber. Something to do with emission control. 
Jan 2018

119000 mi

£130
Had battery replaced 

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2004 Audi A6

Engine not specified

Audi A6 in California, United States
Nov 2009 - Mar 2010
Dec 2009

56000 mi
Extensive replacement of gaskets on the engine, seal at the input shaft of the transmission replaced, repairs made to cure excessive oil burning noted by owner. 
Audi A6 in Ontario, Canada
Aug 2011 - Sep 2012
Sep 2011

155000 mi

C $2500
Suspension leaked and need recharge plus new shocks. Two Catalytic converters replaced plus rewriting for O2 sensors. 
Sep 2012

177320 mi

C $6000
First and second gear needed repaired. Had to rebuild the transmission. 
Audi A6 in New Jersey, United States
Feb 2013 - Mar 2013
Mar 2013

132000 mi

US $2300
Check engine light came on, needed a new torque converter. Extensive job. Took 3 days to fix the problem. 

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2004 Audi A6 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

Audi A6 in Massachusetts, United States
Aug 2014 - Nov 2015
Nov 2014

98700 mi
Coolant leaking from water pump; replaced water pump seal. 
Feb 2015

102000 mi

US $330
Rear stub axle differential seals leaking. Left and right axle seals replaced. 
Aug 2015

106300 mi

US $65
Car had pronounced exhaust leak. Diagnosed both flex pipes as rusty and disintegrating. Replaced both flex pipes. Water leaking into front passenger footwell. Diagnosed deteriorated gasket on cabin air filter plastic surround/tray. Replaced with new surround/tray. 
Sep 2015

108000 mi

US $400
Car was leaking oil. Replaced 3 cam adjuster gears to remedy the leak. Car had broken engine mount. Car leaking fluid from washer fluid tank. 
Nov 2015

108000 mi
Washer fluid leak never fixed. 
Audi A6 in Connecticut, United States
Apr 2004 - Jun 2018
Sep 2004

500 mi
replace gas cap and evaporative purge canister after check engine light comes on, 2 separate incidents, both repaired correctly 
Aug 2006

16000 mi
replace driver's side visor after the insertion clasp cracked and the visor would not stay snapped into place 
Oct 2012

59200 mi

US $90
replaced brake switch 
Nov 2013

66000 mi

US $500
center differential leaking, needed repair 
Sep 2015

74000 mi

US $3000
Replaced catalytic converters, removed ones were fracturing. I was shown the fractures, car is 11 years old. 
Jun 2017

83000 mi
Replaced split CV Boot 4 wheel alignment and 4 tires balanced 
Audi A6 in South Carolina, United States
Dec 2014 - Jan 2015
Jan 2015

US $600
Developed a almost impossible to find coolant leak 
Audi A6 in Connecticut, United States
Apr 2012 - Jun 2018
Feb 2013

90500 mi

US $200
Left CV boot (original) has a tear in it. The CV boot was replaced with an Audi/OEM part and serviced. 
Apr 2014

97000 mi

US $275
Replaced original CV joint boot due to a tear. 
Dec 2014

102000 mi

US $125
Check engine light. Computer reported engine running too lean. Problem caused by vacuum leak. Repair required new gasket. 
Mar 2017

117500 mi

US $256
Solder joint failure in amplifier in sub-woofer. Purchased OEM NOS part on Amazon for $50.00. Technician replaced the sub-woofer assembly. 
Jun 2017

122000 mi

US $250
Lower radiator (original, 13+ years old) hose looked a bit crusty Right-front woofer speaker needed to be repaired. New speaker purchased online for $32. 
Dec 2017

128000 mi

US $1644
Replace right front, inner & outer CV Boot Drive belt tensioner failed. (original part 13.5 years old) 
Feb 2018

128000 mi

US $900
One of two original (13.5 year old) flex-pipe failed. Replace both. 
Jun 2018

129750 mi

US $265
Battery was 6.75 years old 

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2004 Audi A6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 in California, United States
Nov 2009 - Jun 2011
Jul 2010

87000 mi

US $30
replaced the temperature control module - temperature gauge in dash not working, $30 part, 30 minute repair done by me in my garage 
Audi A6 in Pennsylvania, United States
Apr 2009 - Mar 2010
Dec 2009

77000 mi

US $600
rear shocks went out. 
Audi A6 in Pennsylvania, United States
Jul 2015 - Dec 2016
Jul 2015

86000 mi
secondary air pump and combination valve 
Oct 2016

96700 mi

US $250
Combi valve 

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2004 Audi A6 4dr Sedan

265-horsepower 2.7L V6 6-speed manual AWD

Audi A6 in Illinois, United States
Apr 2010 - Jun 2012
Apr 2011

49000 mi
Secondary Air Pump Cabin blower squeaky, replaced blower. 
May 2011

49000 mi

US $750
Replaced both front CV Boots. 
Jun 2011

50000 mi

US $620
Secondary Air Code Both Banks, P0491. Vacuum broken under intake manifold at plastic T. Disassemble back of intake to repair. 
Jan 2012

54000 mi

US $40
Coolant temperature sensor faulty. 
Mar 2012

54000 mi

US $13
Windshield fluid leaking from tank near pump. Replaced grommet part #443955465. Broke plastic connector to pump during reassembly, bought rubber tube and connector from Advance Auto Parts to reassemble. 
Jun 2012

54000 mi

US $1350
Replaced steering rack. 

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2004 Audi A6 4dr Sedan

265-horsepower 2.7L V6 5-speed shiftable automatic AWD

Audi A6 in Washington, United States
Apr 2009 - Dec 2015
Jan 2011

74800 mi

US $520
Both front CV Joint Boots were found to have split. Both front Axle Assemblies were removed, inspected, and re-installed with new boots fitted. Center Console lid hinges failed. Dealer estimated $257 to replace. 
Nov 2012

84200 mi

US $250
Rear prop shaft seal was leaking and was replaced. 
Apr 2014

95200 mi

US $1500
Valve cover gaskets were leaking. Both were replaced along with the Chain Tensioner Gaskets, and Cam Caps. Since the top-end of the engine was opened, the Spider Crankcase Breather Hose Assembly was also replaced. During cooling system inspection, it was discovered the coolant overflow tank (plastic) was beginning to crack. Tank was replaced. 
Apr 2015

99300 mi

US $100
Coolant Temp Sensor in cylinder head replaced. Recommended by mechanic, don't know why. Trunk not locking. Trunk latches properly, and will trigger alarm when opened (if car is locked), but the trunk itself will not lock. 
May 2015

99000 mi

US $265
Trunk not locking. Trunk would latch and trigger the alarm when opened (when car was locked) but not lock. This had been a long-term problem that literally fixed itself the day we decided to have it diagnosed. Had latch replaced anyway. 
Audi A6 in Texas, United States
Nov 2009 - Mar 2010
Dec 2009

135000 mi

US $5000
Replaced Turbos. 
Audi A6 in Pennsylvania, United States
Apr 2009 - Jun 2014
Aug 2009

48000 mi

US $85
Check engine light on, noticed no difference in driving the car. Computer reported standard systems check as "OK". Scheduled an appointment with dealer, who claimed a problem with the engine exhaust valves. Valves replaced under CPO warranty. 
Apr 2010

50000 mi

US $50
Turn signal bulb burned out in instrument cluster. Dealer stated bulb could not be replaced, new instrument cluster required. Repair covered by certified warranty. 
Mar 2012

55000 mi

US $92
CEL from reported intermittent evap leak. Dealer unable to find any issue, cleared code. 
Apr 2013

60200 mi

US $180
Engine heat sensor failed causing CEL. Bad wiring harness led to starting problems and one stall immediately after starting. Dealer replaced sensor and harness. 
Audi A6 in North Carolina, United States
Apr 2009 - Nov 2016
Sep 2016

140000 mi

US $3500
$1800 torque converter rebuilt $400 CV joint replacement Electrical system failure due to water damage from windshield leak 
Nov 2016

140000 mi
Electrical problems caused by water leak never fully sorted out. Mechanic now helping me sell the car. 
Audi A6 in New Jersey, United States
Sep 2009 - Jun 2011
Mar 2010

57495 mi

US $54
Cam adjustment and valve cover seals. CAM ADJ & VALVE COVER SEALS 
Audi A6 in Tennessee, United States
Sep 2009 - Jun 2011
May 2010

63000 mi

US $1400
Starter failed, car would not start. New starter installed. Recall items(coil packs)replaced by dealer at n/c. 
Audi A6 in New York, United States
Oct 2010 - Jan 2017
Nov 2010

37000 mi

US $300
Took front wheels off for balancing. Inside of right hand wheel full of grease. Yet another blown CV Boot. Mechanic offered to replace the boot, but instead replaced the half axle with allegedly OEM parts. 
Mar 2011

38000 mi

US $700
Broken passenger side upper and lower control arm. Replace. 
Feb 2012

41200 mi

US $450
Replace 
Jul 2015

49000 mi

US $1450
Replace upper control arm bushings 
Aug 2015

49300 mi

US $725
Replace front struts with OEM 
Mar 2016

50000 mi

US $600
Replace lower control arms OEM parts  
Jan 2017

55000 mi

US $850
Warn rear shock absorbers. Rough ride. Pot holes upset direction when cornering at speed.rnrnReplace rear Shock absorbers with dealer supplied OEM parts CV Axle worn and noisy. Replace both CV Axles. 
Audi A6 in California, United States
- Apr 2008
Apr 2008

45000 mi

US $250
tie rod end link 
Audi A6 in Illinois, United States
Apr 2009 - Feb 2011
May 2009

100000 mi
Coil pack failed, threw CEL. Car driveable, but just barely - limped to dealership for repair 
Sep 2009

107000 mi

US $40
Coil pack failed. 
Audi A6 in California, United States
Feb 2015 - Sep 2018
Sep 2016

125000 mi

US $120
New coolant reservoir 
Oct 2016

129000 mi

US $1000
Transmission gasket replaced 
Mar 2017

133000 mi

US $1624
replaced entire front upper and lower control arms/bushings and assembly with Audi OEM parts 
Nov 2017

134837 mi

US $204
original cam position sensors failed causing CEL and fault code. replaced both banks with OEM sensors, original coolant temp sensor failed causing fault code and CEL. replaced with OEM part 
Sep 2018

138000 mi

US $2100
slight water coolant leak likely due to failed thermostat housing. T belt was less than 20k miles old. replaced all of the original hoses with OEM parts Power steeting pump hose replaced with OEM hose 
Audi A6 in Colorado, United States
Nov 2009 - Mar 2010
Jan 2010

US $270
Hard start 
Audi A6 in New York, United States
Oct 2011 - Jun 2016
Dec 2013

102000 mi

US $600
Fuel pump failed and had to be replacd 
Jan 2014

US $450
Had to get Radiator replaced 
Feb 2014

104000 mi

US $600
Oil Leaking, Gasket had to be replaced Strut Coil Spring broke, replaced 
Apr 2016

125000 mi

US $1500
Engine Oil leak 
Audi A6 in California, United States
- Jan 2007
Jan 2007

45000 mi
turbo cooling pump 
Audi A6 in New York, United States
Jun 2015 - Mar 2018
Jun 2015

170000 mi

US $530
Original fuel pump and fuel filter was replaced. Car would have problems starting after engine was warm. Actually in April. Voltage meter came on and brought it to a shop to test the alternator. Alternator was indeed failing and had it replaced. 
Mar 2016

179000 mi

US $300
Replaced original aux coolant pump that is located under manifold. 
Audi A6 in Illinois, United States
May 2011 - Jan 2012
Jan 2012

87000 mi

US $600
Alternator. 

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2004 Audi A6 4dr Sedan

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

Audi A6 in California, United States
May 2009 - Sep 2014
Sep 2009

35000 mi

US $375
Left front drive boot torn. Replaced. 
Mar 2010

39000 mi
Emission control module in CVT transmission replaced under 7 year 70,000 mile Emission warranty. 
Oct 2010

42000 mi

US $713
Broken front motor mount. Completely separated. Replaced both front motor mounts. 
Jan 2012

52100 mi

US $1320
Power Steering Pump defective. Replaced power steering pump. 
Oct 2013

57200 mi

US $2300
Coolant sensor leak/coolant migration to ECM All replaced 

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2004 Audi A6 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

Audi A6 in New York, United States
Nov 2009 - Mar 2010
Dec 2009

68000 mi

US $60
My engine was misfiring, so I had it towed and all it needed was a new coil. 
Audi A6 in New York, United States
Apr 2009 - Jan 2013
Aug 2010

79000 mi

US $750
Left CV Joint replaced 
Oct 2011

92000 mi

US $600
Wheel bearing replaced 
Dec 2011

94000 mi

US $300
Flex pipes between Catalytic converter & exhaust needed replacement. Cruise Control lever had to be replaced 
Audi A6 in Illinois, United States
Nov 2011 - Feb 2013
Feb 2013

40000 mi

US $1642
Leak in rack and pinion gear. Replaced with new part. Got vibration through steering wheel along with noise. First thought that the power-steering pump was failing. 
Audi A6 in Arkansas, United States
Jul 2012 - Aug 2012
Aug 2012

125000 mi

US $800
Rear shaft seal replaced do to leakage 
Audi A6 in Ohio, United States
Jul 2013 - Jun 2015
May 2015

174400 mi

US $2500
the exhaust system had to be replaced 
Audi A6 in Pennsylvania, United States
Aug 2009 - Aug 2009
Aug 2009

US $495
Left rear window regulator replaced, CPO warranty, $50 deductible. Alternator and battery replaced, CPO warranty. Also had tie rods replaced, PA state inspection, $445. 
Audi A6 in Missouri, United States
Nov 2010 - Oct 2011
Mar 2011

40000 mi

US $259
Washer fluid system was leaking washer fluid. Dealer replaced washer fluid pump.  Brought vehicle back two weeks later because it was still leaking. Dealer discovered a crack in the reservoir. I chose not to repair it as yet. Washer fluid pump was leaking washer fluid. 
Jun 2011

45000 mi

US $957
Washer fluid leak was determined to be faulty seals for headlight washers. I requested that they be disconnected as Service Desk felt this would be a recurring issue. 
Aug 2011

45000 mi
Replaced right front CV boot. 
Oct 2011

45000 mi
Engine light was flashing. Timing belt was found to be cracked.  Suspension bars had dried bushings. Costs for repairs were too much. I traded in vehicle. 
Audi A6 in New South Wales, Australia
Feb 2012 - Mar 2016
Feb 2012

49600 mi

A $630
Inefficient cooling and leaking into rear passenger footwell. Regassed, resealed, changed filter 
May 2012

54560 mi
Front end CV covers were cracked, replaced by Euro specialist. Problem was identified previously during a service, retruned car when parts arrvived Indicator lights stay lit when turning, intermittent problem over a few weeks. Mechanic said to give the hazard light button a smack next time it happens. Hey presto - all good for now! 
Oct 2012

60320 mi

A $100
Car failed to start, thought alternator had failed as after jumped stalled in 5 mins. Turned out to be a coroded positive battery lead. 
Apr 2013

67880 mi

A $220
leaking water washer reservoir. had repaired whilst in for a service, charged 2 hours of labour in addition to service 
Oct 2013

72600 mi

A $110
inner reverse sensors going off with no object. Found to be picking up the towbar, unable to adjust the direction of sensors. Problem still occurs intermitently 
Jan 2015

79100 mi

A $1000
Shudder through body and steering wheel. Replaced all front control arms. Improved, but not entirely fixed. Control arm kit from Vaico a poor after market kit. Need to fit new lower control arms after 1,000km. Quote at $1700 
Jan 2016

87280 mi

A $1400
Alternator failed - expensive part in AU! 
Audi A6 in Georgia, United States
Oct 2010 - Mar 2016
Dec 2010

56000 mi

US $200
Trunk did not lock due to a broken part in trunk locking mechanism. Had to replace the mechanism. Works fine now. 
Dec 2012

71000 mi

US $638
Removed and replaced: - Rear pads and rotor, and; - driver-side outer CV boot. Also cleaned up the areas 
Audi A6 in Utah, United States
Oct 2009 - Aug 2013
May 2010

65000 mi
transmission fluid leak, replaced gasket transmission fluid leak, replaced gasket  
Feb 2013

87000 mi

US $800
Replace right boot 
Audi A6 in Indiana, United States
Nov 2009 - Jun 2011
Dec 2009

61000 mi
2. Valve cover gasket needed to be replaced 

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2003 Audi A6 / S6 / RS6

Engine not specified

Audi A6 / S6 / RS6 in North Carolina, United States
Apr 2009 - Mar 2010
May 2009

113000 mi

US $800
Replaced torque converter. Did work myself since Audi dealer wanted 2500+ to do it. 
Audi A6 / S6 / RS6 in Pennsylvania, United States
Oct 2010 - Jun 2011
Dec 2010

100000 mi

US $500
FCC torque diverted clutch was stuck open. The torque converter needed replacing. 
Audi A6 / S6 / RS6 in Colorado, United States
Aug 2011 - Mar 2012
Oct 2011

123700 mi

US $2600
Had to replace drc with coilovers. 
Audi A6 / S6 / RS6 in Massachusetts, United States
Jun 2010 - Jun 2011
Jul 2010

48000 mi

US $500
ABS control module, ESP and ABS Lights on 

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2003 Audi A6 / S6 / RS6 4dr Wagon

340-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 / S6 / RS6 in California, United States
Nov 2014 - Jun 2018
Jun 2015

107000 mi

US $100
Valve cover gaskets replaced All vacuum tubing replaced 
Oct 2017

121000 mi

US $500
1 New fuel injector  Water Pump Gates Racing timing belt L&R camshaft adjuster pads Valve cover gaskets Power steering pump 
Audi A6 / S6 / RS6 in Colorado, United States
Jun 2012 - Dec 2014
Jun 2014

207000 mi

US $500
Replaced all worn rubber bushings and control arms on the front of the car due to mileage. 
Audi A6 / S6 / RS6 in Ontario, Canada
Jul 2007 - Sep 2013
Jul 2007

57010 mi
Replaced printed circuit for shifter. Under warranty 
Aug 2011

81600 mi

C $553
Front upper control bushings torn. Replaced front upper control arm inner bushings. 4 hours labour. 
Apr 2013

99600 mi

C $2200
Gaskets Replaced primary cats 
Aug 2013

102380 mi

C $2600
Loss of power, smoke from exhaust. Intake Manifold Adjuster replaced. Timing Belts also replaced while in shop. 
Audi A6 / S6 / RS6 in California, United States
Feb 2010 - Oct 2010
Apr 2010

105000 mi

US $900
Timing belt replaced. Water pump (in concert with timing belt) Front passenger inner and outer cv boots. 
Sep 2010

117000 mi

US $270
fan control module burnt out, dealer diagnosed, part ordered, will self install. 
Oct 2010

117000 mi
coolant reservoir was leaking. 
Audi A6 / S6 / RS6 in Minnesota, United States
Aug 2015 - Apr 2016
Oct 2015

86300 mi

US $1250
Control arms upper and lower, Trans fluid and filter, caliper rebuild, 3 Diff fluid change, Diff seals, 5 cv boots, 1 axle. 
Apr 2016

90000 mi
transmission failing, car sold without repairing 
Audi A6 / S6 / RS6 in Florida, United States
Apr 2010 - Jun 2011
May 2010

67000 mi

US $7000
Vacuum check valve not covered by my Extended Warranty $430.00 Center Armrest Cover Broke....Second time since I've owned the Car...$180.00 

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2003 Audi A6 / S6 / RS6 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

Audi A6 / S6 / RS6 in Massachusetts, United States
Oct 2012 - Jun 2014
Nov 2012

112300 mi

US $18
Brake light switch. 
Audi A6 / S6 / RS6 in New York, United States
Jul 2013 - Feb 2015
Jan 2014

US $200
Quirk sound while slowly passing bumps. Front left height sensor for headlight was replaced to fix a problem. 
Feb 2015

95000 mi

US $356
Rear differential seals were replaced because of leaking. 
Audi A6 / S6 / RS6 in California, United States
Aug 2014 - Oct 2014
Oct 2014

54000 mi

US $120
Diagnose Check engine light; vaccum system problems Valve covers leaking oil, both sides Upper left Control Arm Bushing is worn Fuel consumption is averaging 11 mpg. 

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2003 Audi A6 / S6 / RS6 4dr Wagon

Audi A6 / S6 / RS6 in Germany
Apr 2017 - Dec 2019
Jan 2019

119660 mi

€800
Leaking CV boot, front right wheel 
Jul 2019

121520 mi

€250
Key would not turn starter - required ignition housing replacement in steering wheel 
Oct 2019

122140 mi

€315
Fresh pads and rotors on all 4 
Dec 2019

123380 mi

€50
Turn signal relay failed 

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2003 Audi A6 / S6 / RS6 4dr Sedan

turbocharged 450hp 4.2L V8 5-speed shiftable automatic AWD

Audi A6 / S6 / RS6 in California, United States
Oct 2011 - Sep 2017
Aug 2015

145700 mi

US $4300
Torque converter on transmission failed. Rebuild entire transmission. Auxiliary radiator leak. 
Jan 2016

US $1200
AC Compressor failure. Replace AC compressor 
May 2016

154400 mi

US $1850
O2 sensor code and check engine light. Replace O2 sensors. 

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2003 Audi A6 / S6 / RS6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A6 / S6 / RS6 in Ohio, United States
May 2008 - Oct 2013
Apr 2010

57000 mi

US $359
Replaced drive right front drive axle 
Aug 2011

67500 mi

US $1400
Cracked breather tube 
Sep 2012

76000 mi

US $1650
Rear conrol arms seized and needed to be replaced parking brake cables failed, needed to be replaced Front tie-rod seized needed to be loosened 
Audi A6 / S6 / RS6 in Washington, United States
Jun 2011 - Feb 2017
Jul 2011

109000 mi

US $300
front wheel bearings replaced 
Oct 2012

121300 mi

US $400
front upper and lower control arm replacement 
Sep 2013

133000 mi

US $200
front pads worn unevenly, sliding pins weren't lubed, resurfaced with new pads radio reception gone 
Mar 2014

137000 mi
comfort module fuse blew after screwing with non-working rear interior overhead light, possibly related to radio reception issues as fixing loose solder contacts in rear overhead light and replacing the fuse fixed that. 
Sep 2015

153000 mi

US $50
door lock actuator, hazard switch 
May 2016

160000 mi

US $230
alternator died, replaced alternator, good to go. 
Jan 2017

169000 mi
door switch in driver door malfunctioned, had to repair microswitch. 
Audi A6 / S6 / RS6 in Colorado, United States
Jul 2008 - Sep 2012
Aug 2008

100000 mi

US $800
Replace front psgr axle while in for Tranny output-shaft seal replace. CV boot (inner) torn. 
Audi A6 / S6 / RS6 in Pennsylvania, United States
Apr 2008 - May 2016
Oct 2008

50000 mi

US $1400
I received a check engine light for coolant temperature too low. The shop replaced the coolant temp sensor earlier which did not fix the problem. The next solution was to replace the thermostat which was likely stuck open.  
May 2009

54000 mi

US $300
I noticed grease on my inner wheel surface when changing my winter wheels. Outer CV boot had split and put grease all over suspension/wheel on drivers side. Shop replaced outer CV boot. 
Sep 2009

55000 mi

US $15
I had to re-attach the rear-view mirror as it had become unglued from the windshield. 
Nov 2009

57000 mi

US $345
Passenger outer CV boot needed to be replaced after it split and lost all grease on inside of wheel. 
Feb 2010

59000 mi

US $225
ABS light came on. Replaced brake pedal switch. 
Dec 2010

64000 mi

US $1200
Cowl vents clogged with leaves caused rain water to drain into the car under the dashboard and flooded the interior of the car. Had to remove seats, dry carpet, check all electrical connections and reassemble. 
May 2011

67000 mi

US $100
Turn signals stopped working. Replaced hazard relay in dash with aftermarket parts. 
Jul 2012

74300 mi

US $145
Exhaust clamps broke and pipe became detached. Had to replace with new clamps. 
Sep 2012

76000 mi

US $900
Auxiliary water pump replaced which requires removal of intake manifold to access. 
Jun 2013

81000 mi

US $750
Engine misfiring due to faulty ignition coils. Replace 5 coils and 6 spark plugs. Valve cover seals leaking. Replaced all seals. 
Jul 2013

81300 mi

US $900
Coolant leak discovered while replacing valve cover gaskets. Required new water pump (2nd one in last 4 years.) 
Sep 2014

90000 mi

US $960
Front outer CV boot replaced due to crack 
Oct 2014

90500 mi

US $480
Crank Position Sensor failed leaving car unable to start. Required tow to repair shop. 
Jul 2015

94300 mi

US $1100
Exhaust rusted out at center resonator. Replaced resonater/x pipe. 
Jan 2016

99000 mi

US $1400
Front upper control arm bushings are worn out and need replaced. 
May 2016

101000 mi

US $1300
Front upper control arm bushings needed replaced. 
Audi A6 / S6 / RS6 in Illinois, United States
Jan 2011 - Jun 2018
Feb 2011

76000 mi

US $380
replaced worn serpentine belt and tensioner. Tensioner was getting noisey 
Apr 2011

77000 mi

US $99
front lower aft drivers side control arm/ball joint was bad. I replaced it. 
Jan 2012

87000 mi

US $235
replaced the front right axle shaft, the old inner bearing was bad. 
Aug 2012

92500 mi

US $75
Replaced front lower forward control arm. 
Sep 2012

93000 mi

US $135
replaced right front lower forward control arm. 
Nov 2013

103000 mi

US $200
replaced both lower control arms on both sides of the front suspension and the sway bar links. 
Oct 2015

124200 mi

US $100
replaced front lower left forward control arm  and left front axle. 
Nov 2015

124600 mi

US $25
replaced sway bar bushings 
Jan 2017

125800 mi

US $1500
timing belt and valve cover gasket and seal maintenance. there was some weeping in the valve cover gaskets/seal areas, but nothing serious...it was mostly preventative since i was already doing a comprehensive timing belt service on the front of the motor 
Feb 2018

133000 mi

US $100
Oil pressure sensor was bad...common problem for VW/Audi...so I replaced it and the oil level sensor as well. 
Audi A6 / S6 / RS6 in Michigan, United States
Nov 2010 - Apr 2016
Dec 2010

182000 mi

US $1400
Replaced brake pads and rotors, emergency brake cables (last changed brakes at 105k) 
Nov 2011

195000 mi

US $160
Rear differential seals replaced. 
Jan 2012

220900 mi

US $2400
CEL codes for bad catalytic converters. Replaced both cats with non-oem parts and replaced all four O2 sensors. 
Nov 2012

207700 mi

US $87
Power steering whining. Replaced fluid. CEL for secondary air injection unit. Disconnected SAIU. CEL still sometimes lit for O2 sensors. 
Dec 2012

211000 mi

US $128
Replaced battery at 209127 miles 
Jul 2013

216000 mi

US $67
AC not working. Tried re-charge but it appears to be failed compressor. Owner elected not to repair as vehicle is driven mostly in the winter. 
May 2014

229300 mi

US $820
Car was starting hard and finally stalled when driving. Replaced fuel pump. 
Dec 2014

232000 mi

US $616
Left rear caliper failed, scoring the rotor. Replaced caliper, rear brake pads, and turned rotors. 
Dec 2015

238000 mi

US $120
Battery was 3+ years old and did not hold a chage. Note - the vehicle had been stored outside for 7 months and not driven. 
Apr 2016

238000 mi
AC never repaired. Leaking turbos. Very loud power steering pump. Synchros starting to stick. Doors not always latched, but still ran solid. 
Audi A6 / S6 / RS6 in Connecticut, United States
May 2012 - Jul 2012
May 2012

94000 mi

US $1300
Failed ABS module replaced 

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2003 Audi A6 / S6 / RS6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

Audi A6 / S6 / RS6 in Colorado, United States
Dec 2008 - Mar 2010
Feb 2009

97000 mi

US $217
Right front axle. 
Jun 2009

103000 mi

US $65
flasher relay that is part of the hazard switch. so, whole hazard switch had to be replaced. 
Audi A6 / S6 / RS6 in Missouri, United States
Jan 2016 - Dec 2017
Jan 2016

147000 mi

US $650
Oil leaks 
Audi A6 / S6 / RS6 in Maryland, United States
Apr 2008 - Apr 2010
Jul 2008

79000 mi

US $250
Torn outer CV boot on the passenger's side. 
Mar 2009

88000 mi

US $154
A knocking noise from the front of the engine was troubleshot and no trouble was found. Initially the t-belt tensioner and cam tensioner were suspected.  
Jul 2009

95000 mi

US $125
Center cluster pixels were fading out. 
Feb 2010

103300 mi

US $305
Bad Engine Cooling Temperature sensor and bad O2 sensor. 
Apr 2010

105000 mi
Torque converter started slipping so the car was sold. 
Audi A6 / S6 / RS6 in South Africa
Jul 2011 - Nov 2012
Aug 2011

145080 mi
I had a jerking when you accelerate sometimes then I replaced the front engine mount 
Sep 2012

165540 mi

R 700
CV joints were replaced both lower control arms 
Audi A6 / S6 / RS6 in Wisconsin, United States
Aug 2008 - Nov 2015
Feb 2008

60000 mi
Rear motorized sun shade frame repaired under CPO and no cost. 
Jun 2008

64000 mi

US $50
Auxiliary water pump leak repaired under CPO. 
Jul 2008

65500 mi

US $50
All oil seals including valve cover, cam, and cam tensioners replaced due to leaks under CPO. 
Aug 2009

81000 mi

US $40
Noticed that the outer CV boot on the driver's side had split and covered the wheel with grease. I replaced the boot on that side and also the passenger's side as preventative maintenance. 
Sep 2009

85000 mi

US $325
At 82,000 miles it was finally time to replace all control arms, TREs, and swaybar links. Car was destroying the inside shoulder of the front driver's side tire. At 82,000 miles it was finally time to replace all control arms, TREs, and swaybar links. Car was destroying the inside shoulder of the front driver's side tire. 
Oct 2009

83500 mi

US $50
One motor mount replaced under CPO due to fluid leakage. 
Nov 2009

87000 mi

US $50
LCD in instrument cluster starting to lose pixels. Dealer replaced entire cluster under CPO. 
Dec 2009

90000 mi

US $50
The ESP and ABS ligts were coming on sporatically, so the brake light switch was replaced by dealer under CPO. Don't know entire cost, but I only paid the $50 deductible.  They also fixed a rattling exhaust heat shield under the driver's seat. The ESP and ABS ligts were coming on sporatically, so the brake light switch was replaced by dealer under CPO. Don't know entire cost, but I only paid the $50 deductible. They also fixed a rattling exhaust heat shield at no charge. 
Jun 2010

105000 mi

US $250
Oil leak at the two seals on the back side of the driver's side cylinder head fixed. They resulted from a frozen PCV system back in December and problem was allowed to progress to the point it could be diagnosed. 
Jul 2010

105800 mi

US $230
Oil leak at the two seals on the back side of the driver's side cylinder head fixed. They resulted from a frozen PCV system back in December and problem was allowed to progress to the point it could be diagnosed. 
May 2011

120000 mi

US $240
Car was using oil due to plugged PCV hose system so it the hose system was replaced. During removal, the N75 valve was damaged, so it was replaced also since it frequently fails. PCV hose $180 at dealer, N75 valve used $60. A low speed clunking noise was attempted to be fixed by replacing badly worn cheap Chinese lower control arms, but the noise persists. Looking at the sway bar links as the culprit and they will be replaced soon. Car was using oil due to plugged PCV hose system so it the hose system was replaced. During removal, the N75 valve was damaged, so it was replaced also since it frequently fails. PCV hose $180 at dealer, N75 valve used $60. 
Oct 2011

126000 mi
Front end shimmy was partly due to the tie rod ends being very loose. Some of the shimmy went away, but the rest is due to the lower rear control arms being bad now. All total, I will have replaced the lower front and rear CAs and TREs. Secondary Air Pump is not working in the cold weather and throwing codes. I unplugged the pump for now and will remove and rebuild in the spring. Common problem when the combi valve lets exhaust gas into the pump and it condenses & rusts. 
Dec 2011

129000 mi

US $55
All 4 of the upper control arms are junk. 40k miles on the aftermarket set. Now all 8 are new again and the steering is tight. Better off buying Meyle next time and getting 60-80k miles. 
Jan 2012

97000 mi

US $500
Thermostat and water pump from last timing belt job were leaking after 35k miles. Replaced them both and all other timing belt parts, along with all oil seals. Poor design that a thermostat job means removing the timing belt system. 
Mar 2012

132000 mi

US $60
Driver's side axle became loose, causing vibrations at highway speeds. Replaced entire axle. Partially solved problem. Will replace pass side in the future. 
Jul 2012

135800 mi

US $80
Bearing on driver's side was suspected to be causing vibration at highway speed, and was replaced. Although there was play, it did not solve the problem. 
Oct 2012

140000 mi

US $75
Engine mounts were past their prime and creating vibrations in the cab. One was good because it was only 75k miles old but the other was factory. Huge job to DIY, would recomend paying someone to do it. 
Audi A6 / S6 / RS6 in Colorado, United States
Jan 2012 - Jul 2012
Jun 2012

36000 mi

US $120
Valve cover gaskets 
Audi A6 / S6 / RS6 in North Carolina, United States
- Nov 2007
Jan 2007

55000 mi

US $265
Replace torn left front CV boot. 
Aug 2007

69000 mi

US $265
Replace torn right front CV boot. 
Nov 2007

74000 mi

US $250
Replace B1S1 Oxygen Sensor 
Audi A6 / S6 / RS6 in Georgia, United States
Feb 2008 - Jul 2013
Apr 2008

47118 mi

US $14
Rear Transfer Case seal replaced by owner. Cost only 14.00 to include seal and gear oil. Repair time approximately 2.5 hours 
Dec 2008

52288 mi

US $82
Valve Cover Gaskets replaced by owner. Cost $82 for both gaskets and a tube of black RTV sealant. Repair time approximately 5 hours. 
Mar 2012

84000 mi

US $120
Electric after-run coolant pump replaced after a colant leak from it was discovered. 
Audi A6 / S6 / RS6 in Michigan, United States
Jun 2010 - Jun 2017
Jun 2012

140000 mi

US $2905
Had the torque converter replaced. ALso replaced were the n74 solenoid, n264 check valve, Venthose system (spider hose) 
Oct 2012

145200 mi

US $200
Replaced Windshield wiper motor and transmission(linkage) assembly. Also replaced the coolant expansion tank. 
Dec 2012

149000 mi

US $110
Secondary Air Injection pump failed. Had pump rebuilt for 95.00. 
Feb 2013

152500 mi

US $28
Replaced the Hazard relay 
Apr 2013

155000 mi

US $45
Replaced turn single stalk 
Oct 2013

166700 mi

US $1100
Replaced shocks and upper control arms. 
Apr 2014

175800 mi

US $150
Replaced front and rear shock mounts. 
Jun 2014

178000 mi

US $90
Replaced Secondary Air Injection pump and pipe 
Jan 2015

196000 mi

US $229
Alternator died 
May 2015

200000 mi

US $65
Passenger side CV boot split drying out the joint eventually leading to a failure. 
Sep 2015

206000 mi

US $1000
All control arms and tie rod ends were replaced. Including sway bar links. 
Mar 2016

214000 mi

US $3700
Transmission failed. No reverse and no forward gears. Total failure. Replacement needed. 

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2003 Audi A6 / S6 / RS6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 / S6 / RS6 in Queensland, Australia
Jun 2010 - Jun 2018
Dec 2010

57040 mi
The windscreen washer was blocked. I contacted a dealer on my route. They fixed the problen in 40 minutes and did not charge. We werw given coffee and bisquits. 
Jan 2012

69600 mi

A $840
Blocked washer jets. One jet broken by a stone. Part needs to be ordered. 
Aug 2012

64480 mi

A $5300
Reverse warning inoperative. 2 half shaft boots Washer nozzle (stone damage), washer bottle (growing fur and blocking nozzles). 
Sep 2012

65100 mi

A $280
Reversing alarm speaker replaced. Bonnet (hood) strut replaced. 
Aug 2013

69940 mi

A $550
Warn bushes, leaking rocker cover, cracked fuel tank. All need to be replaced at next service. 
Feb 2014

72000 mi

A $5800
Replace cracked fuel tank (warranty) Replace lower front bushes Replace rocker gaskets Replace rat-eaten vac pipe Replace windscreen wipers Replace electronic engine mount Repair 3 buckled wheels Polish headlights 
Aug 2014

73980 mi

A $400
Replaced PCV valve. Tied off broken manifold actuator link to allow. Tied manifold barrel arm to idle position. Parts ridiculously expensive in Australia. sourcing parts in Europe. Care remains drivable. 
Aug 2015

75220 mi

A $400
Plastic vacuum manifold flap actuator linkage broken because of seized inlet manifold flaps. Flaps and and spindle cleaned and lubricated. New linkage manufactured. $400. Dealer said had to replace parts for $7000. 
Sep 2016

77500 mi

A $1500
Supply and replace original specification rear shock absorbers. 
Jan 2017

71880 mi

A $3000
Supply and fit front shock absorbers and locking bolt. 
Jul 2017

84940 mi

A $4000
Replaced leaking rocker covers.  Replaced hood gas strut and trunk gas struts.  Replaced leaking rear vision mirror. 
Jun 2018

89900 mi

A $50000
Worn out. Replaced. Siezed piston. Replace fuel pump. Car ran roughly and later would not start. Replace idler solenoid in gear shift assembly. Replaced front half shaft cv joint outer boots. 
Audi A6 / S6 / RS6 in Georgia, United States
Oct 2009 - Jun 2011
Oct 2009

126000 mi

US $3250
Transmission rebuild 
Nov 2009

129000 mi

US $70
Replace ZFHP24A Transmission Replaced both xenon D2S headlight bulbs 
Jun 2010

148000 mi

US $1580
Leaking Water pump 

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2003 Audi A6 / S6 / RS6 4dr Sedan

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

Audi A6 / S6 / RS6 in Arizona, United States
Aug 2006 - Apr 2016
Oct 2006

17000 mi
Vibration @ 55mph and above. Dealer turned rotors and re-balanced wheels several times. Issue not resolved. Told that this was common for CVT. 
Aug 2015

78000 mi

US $1200
Engine and transmission mounts replaced. 
Apr 2016

83000 mi
Discovered in January that it needs new CV boots, left and right both cracked. Estimate of $800. Also needs timing belt and water pump, $1,700. 

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2003 Audi A6 / S6 / RS6 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

Audi A6 / S6 / RS6 in Quebec, Canada
Sep 2011 - May 2013
Nov 2011

71920 mi

C $300
front right wheel bearing 
Dec 2012

73780 mi

C $60
exhaust, a joint was loose between the two extremities just replace the joint. 
Audi A6 / S6 / RS6 in Kentucky, United States
May 2008 - Mar 2010
Jun 2008

43000 mi
misfire in one cylinder. changes plugs and one coil pack, but didn't help 
Audi A6 / S6 / RS6 in Washington, United States
Jan 2009 - Nov 2013
Feb 2011

56000 mi

US $600
CV Boots 
Nov 2013

71000 mi
the torque convertor starting throwing a code. It was going to be $3500 to repair. We traded the car in. 
Audi A6 / S6 / RS6 in Texas, United States
Jun 2016 - Jun 2017
Dec 2016

145000 mi

US $3500
Transmission went into emergency mode on the highway and locked into 4th. Transmission required a rebuild, and CV joint was replaced at the same time. 
Audi A6 / S6 / RS6 in Minnesota, United States
May 2009 - Mar 2010
Aug 2009

44000 mi

US $175
Bad coil pack cylinder #3 
Audi A6 / S6 / RS6 in Maryland, United States
- Dec 2007
Jun 2004

15000 mi
Steering wheel mounted, stereo control button replaced under warranty. 
Mar 2007

30000 mi

US $250
Engine bay is vibrating. Dealership said something got loose. (Will add more info when I get papework) 
Dec 2007

40000 mi

US $400
CV Boots torn on both sides. Usually a 80k mile item. 
Audi A6 / S6 / RS6 in Ontario, Canada
Apr 2008 - Feb 2011
Jan 2008

94240 mi

C $1300
Changed timing belt, thermostat, water pump 
Apr 2008

96100 mi

C $300
changed temp sending units 
Jun 2008

99200 mi
Check engine light on repeatedly. Throwing an EVAP code. doesn't affect driveability, so will be repaired at a later date. 
Oct 2008

104160 mi

C $250
EVAP code , traced to purge valve, bought part just not installed 
Nov 2008

104780 mi

C $168
replaced evap purge valve. 
Dec 2008

105400 mi

C $280
Bracket for steering rack diagnosed as loose. Part is backordered from dealer. 
Mar 2009

108500 mi

C $350
Transmission noise repaired, loose component refastened. Noise is gone. 
May 2010

119660 mi

C $1500
Catalytic failure left side, replaced cat. Replaced O2 sensors as well. Right side sensors are intermittently responding. 
Jan 2011

125860 mi
Torque converter failure, car not worth repairing. Will sell 
Audi A6 / S6 / RS6 in Connecticut, United States
May 2014 - Nov 2014
Jul 2014

148000 mi
Misfire in cylinder number 2. Blown head gasket. Torque converter needs to be replaced. 
Sep 2014

153000 mi

US $700
Front left axle leaking, replace assembly. 
Nov 2014

153000 mi
Oil pressure warning light goes on intermittently. Oil level is OK. 
Audi A6 / S6 / RS6 in Washington, United States
Sep 2010 - May 2015
Apr 2013

108000 mi

US $100
cv boot replaced 
Jun 2013

108000 mi

US $200
Replace CV boot again!!! 
Mar 2014

109000 mi

US $900
Right side CV joint broke. Towed to repair shop and replace both front axles. 
Jan 2015

125000 mi

US $2500
Replaced water temp, oil temp, oil level sensors.  Replaced abs computer and abs sensor. 
Mar 2015

128000 mi

US $800
Replaced parts 
Audi A6 / S6 / RS6 in New York, United States
Jan 2012 - Jun 2012
Feb 2012

87200 mi

US $300
CV half-shafts replaced 
Jun 2012

88000 mi
Transfer case output tail and fore seals broken. Rear differential seal broken. 
Audi A6 / S6 / RS6 in New York, United States
Dec 2005 - Nov 2009
Jan 2005

50000 mi

US $50
have replaced 4 bad coils under warranty (Price is warranty deductible) date and mileage is sort of middle range- done over period of 2.5 yrs 
Jan 2009

84000 mi

US $1264
Valve cover gasket blew- serious oil leak- towed to shop- covered under cpo..There was NO indication on oil pressure or temp guage... Coolent temp sensor went at the same time, so there was no indication had overheated! (I know it was at that time because engine never indicated that it warmed up after 25 mile ride... Timing belt, water pump, tensioner pulley. Dealer reported maint. sched had been reduced to 70000 miles because of failures at previous 105000 suggested interval-He led me to believe that CPO would not cover the 105K interval. 
Feb 2009

86000 mi

US $53
Check engine light-dealer said code indicated bad cat-but that some vacuum hoses damaged MAY be problem-replaced hoses under CPO and reset light-also suggested injector and throttle body cleaning- (done in following month) light not back on yet. 
Mar 2009

87000 mi
Front wheel bearings replaced 
Apr 2009

89000 mi
replaced head unit- display showed "error 3" check engine light code P0441-002, evap emission control system incorrect flow lower limit exceeded 
Aug 2009

94000 mi

US $278
replaced front outer CV boot 
Audi A6 / S6 / RS6 in Ontario, Canada
Feb 2016 - Aug 2016
Feb 2016

157480 mi

C $760
alternator failed, replace with new one 
Aug 2016

139500 mi
transmission failed and car can not accelerate 
Audi A6 / S6 / RS6 in South Dakota, United States
Feb 2009 - Jul 2012
Mar 2009

91000 mi

US $1400
Huge oil leak, stuck/frozen crankcase vent valve (told because I didn't drive the car enough to heat up the valve area). Oil leaked out of front of pass side cam cover. With engine apart, had timing belt, water pump, rollers, serp belt replaced add $1200 Serp belt roller bearing failed one week later. Car inoperable. Had to tow 90 miles at my expense for warranty repair. 
Mar 2010

100000 mi

US $200
Serpentine belt tensioners replaced with new belt Feb 09. Failed 1 week later with immobility. Replaced under warranty. Serp belt "fell off" Mar 10, with tensioner missing or defective. Non dealer shop placed 10mm bolt, saw belt fragments on flywheel 
Mar 2011

113000 mi

US $985
Transaxle oil pan gasket leak, output shaft bearing seal leak, outer CV boot leak, odometer sensor ring defect 
Jan 2012

114000 mi

US $930
Torn CV boot Power steering lines leaking, noise with steering 
Jun 2012

116000 mi

US $768
Pre-cat oxygen sensor Air bag light on 
Audi A6 / S6 / RS6 in Indiana, United States
Nov 2009 - Jun 2011
Dec 2009

63000 mi
Replaced 5 bad coil packs on Audi A6 3.0  Now exhaust extremely hot glowing bright red at night melting rear bumper cover near exhaust tips Service engine lite flashing rapidly poor fuel economy less than 8.5 miles gal. dealer said working in spec. Car leaking expensive fuel on the ground if filled pas 3/4 tank of fuel was told they al do that from expansion.I worry about my wife driving with red hot exhaust and fuel spilling out with kids in car 
Jan 2010

64000 mi

US $350
leaking fuel tank was told this is normal if tank filled past 34 Xenon igniters both failed and blew fuses for tailamps and transmision locked up in park when I got home will not go into gear. Car is now unusuable. This happened after I closed the trunk putting groceries in car. Had to drive home with no lighting. 
Feb 2010

65300 mi
4 more coil pack failures. Replaced and now runs, but CEL now on all the time. 
Mar 2010

72000 mi

US $55
Rear Brake pads ratttling terribly, license plate frame rotted and fell off. New Audi plate holder cost me $55. 
Audi A6 / S6 / RS6 in Arizona, United States
May 2009 - Mar 2010
Jun 2009

70000 mi

US $250
Cylinders 1 & 4 ignition coils went bad. I tried replacing spark plugs first, but did not cure the problem. 
Audi A6 / S6 / RS6 in New York, United States
Oct 2009 - Aug 2018
Oct 2010

83000 mi

US $120
replaced the drivers front O2 sensor. had a CEL and couldn't get it inspected until fixed. 
Dec 2011

93000 mi

US $75
replaced snub mount and two front control arms, wear items 
Dec 2015

125000 mi

US $50
Had to replace the valley pan gasket. was leaking 
Nov 2016

132100 mi
Exhaust repaired 
Nov 2017

140000 mi
exhaust flex pipes 
Dec 2017

140000 mi

US $400
Crank seal and timing belt replacment 

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2002 Audi A6 / S6

Engine not specified

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

133000 mi

US $5000
Transmission slips. Transmission was replaced. 
Audi A6 / S6 in Massachusetts, United States
Apr 2015 - Apr 2015
Apr 2015

173000 mi

US $1300
Replacement of the PLASTIC pipe that carries coolant to the rear of the engine. 
Audi A6 / S6 in British Columbia, Canada
Jul 2009 - Mar 2010
Aug 2009

86800 mi
Car overheated took to the Garage - they checked computer found no problem, went on 2 hour high speed trip red, warning overheating came on had car towed 150KM, thermostat replaced. 
Audi A6 / S6 in California, United States
Dec 2011 - Jan 2012
Jan 2012

US $400
Front bearings are VERY noisy. Repair attempted last year (DIY) with aftermarket bearing brand:FAG. Seems no good. quieter, but still noisy. Purchased genuine Audi bearings, and will install soon (myself). Check Engine Light and OBD2 code P0421. I will replace all 4, O2 sensors. Supposedly, Bosch states the service life is 100k miles. Mine have 150k on them. Hoping for no engine light, and better mpg! 

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2002 Audi A6 / S6 4dr Wagon

340-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 / S6 in Florida, United States
Oct 2009 - Sep 2013
Aug 2010

65000 mi

US $300
Car was leaking water during heavy rain from cabin air intake into the passenger footwell of car. Previous dealer main had replaced battery incorrectly after doing main and pinched the intake seal allowing water through the air intake. 
Sep 2010

71000 mi

US $2200
Thermostat stuck in closed position and car overheated. Temperature sensor broke. As front end required removal for thermostat replacement, I replaced timing belt and 80K service at same time. 
May 2012

88800 mi

US $2700
Right axle broke. Noticed noise before catastrophic failure. I had to rent a car for days that repair took. Ordered new Axle from Raxles as Audi of America was out of Axles. 
Feb 2013

95800 mi

US $2600
Engine oil cooler pipe broke. Required engine to be lowered after talking mech out of pulling engine. Talked mech down from 35 hours of labor to 16. Piece is a 1 inch piece of plastic. Probably costs cents to make. 
Audi A6 / S6 in California, United States
Sep 2010 - Jul 2012
Jan 2011

95000 mi

US $155
Turn signals functioning intermittently. Diagnosed problem online (AudiWorld.com) as failed turn signal relay; shop confirmed relay failure; replaced relay and corrected problem. 
Nov 2011

104000 mi

US $1300
Battery light warned on Sunday; drove car to shop on Monday but didn't make it. Alternator gave out. Required new alternator and battery. Torn CV boot replaced. 
Audi A6 / S6 in Oregon, United States
Feb 2011 - Feb 2015
Sep 2011

124000 mi

US $575
Oil leak near rear main seal. Resealed upper oil pan. Looks okay for now. 
Jan 2012

140800 mi

US $875
replaced front oxygen sensors, $575 replaced leaking left side transzxle oil seal at drive axle, $300 flange. had noticed burning smell. 
May 2013

144300 mi

US $130
oil leak 
Sep 2013

145000 mi

US $600
Replacement 
Audi A6 / S6 in Minnesota, United States
Mar 2003 - Jun 2018
Jun 2011

130000 mi

US $680
Both front drive axle outer boots torn, discovered when I was changing oil. Brought to shop and replaced with new complete axel shafts. 
Aug 2011

131700 mi

US $33
replaced right front outer tie rod end, DIY, less than an hour, part bought on internet for $33 
Jun 2012

139000 mi

US $25
Water Temp Sensor failed, replaced myself. 
Nov 2012

145300 mi

US $700
Upper Control arms, tie rods,front brakes 
Jun 2013

148000 mi

US $300
Right Rear wheel bearing 
Jul 2013

148800 mi

US $1000
Bad AC Clutch, replaced with new compressor, drier etc and replace comfort control module. 
Dec 2013

155000 mi

US $160
Cooling system return line broke at fitting behind reservoir 
Mar 2014

157000 mi

US $520
Serpentine belt tensioner replaced. 
May 2014

158000 mi

US $59
Driver door latch cable broke. 
Aug 2014

160100 mi
Replaced electric condenser cooling fan 
Sep 2016

180000 mi
Normal brake job on all 4 with rotors and pads, Had a caliper with torn boot on right rear replaced, mechanic noted front rubber brake lines showing age crack, replaced both. 
Audi A6 / S6 in Colorado, United States
Nov 2008 - Jul 2018
Dec 2008

76500 mi

US $13
drivers side outer CV boot rupture. Replaced with mcquay-norris boot kit from local auto parts store for $13. owner replaced. 
May 2009

79000 mi
bank 1 catalytic converter element became loose inside cat. housing bank 1 catalytic converter element became loose inside cat. housing - rattling while driving. Taken to dealer 
Jun 2009

79000 mi
loose catalytic converter element on passengers side replaced under original factory warranty (10yr/100k miles for S6) 
Dec 2009

80000 mi

US $52
Micro switch inside drivers door latch broke - various systems in the car rely on knowing the door is open or closed. Replaced latch assy with used unit from '04 model A6 
Aug 2010

82000 mi

US $105
Electronic Stability Program (ESP) light on dash during/after anomalous anti-lock brake engagement at speeds 20-50MPH. System scan reports "Yaw Sensor - signal intermittent" or "Yaw Sensor - circuit failure. Yaw Sensor replaced, however, inside 25 miles the problem (ESP light in instrument cluster) was back. Vehicle owner investigated further and determined a faulty electrical connector/contact was to blame. The problem has not returned since. 
Dec 2011

85000 mi
Original Battery replaced 
Feb 2012

86000 mi

US $809
OE dampers worn out; OE upper control arm bushings worn/torn. Torn bushings cause extreme inner shoulder of front tire to wear to "cord". Replaced dampers/springs with ST 90026; Replaced rubber bushings in upper control arms. Replace tire. 
Aug 2012

88900 mi

US $500
Replaced upper control arms with adjustable arms to correct front wheel camber to within mfg. specs. 
Dec 2012

91000 mi

US $87
Replaced the heated/auto dimming mirror glass - original unit leaked/turned brown. 
Jan 2013

92000 mi
Removed, cleaned, lubricated the heater blower motor. These are known to make a bird chirp like noise over time. A little $0 TLC is all that's needed. 
Apr 2016

99000 mi

US $100
Secondary air injection pump bearing noisy/failed. Removed large fuse in ECU box. Manually set readiness 
Apr 2018

104000 mi

US $115
Duralast Gold battery, which was new 7 years ago, began showing signs of fading. Replaced with genuine Audi/VW battery 000-915-105-DJ 
Audi A6 / S6 in Washington, United States
Jun 2008 - Sep 2012
Mar 2009

85000 mi

US $750
Bad thermostat causing overheat. Due to design, work ultimately included replacing timing belt, waterpump, serpentine belt, and associated rollers and tensioners. Torn and cracked outer cv boot, replaced CV joint on torn side, replaced boot on cracked side. 
Apr 2009

86000 mi

US $200
Replace front control arms due to age/wear of suspension bushings 
May 2009

86000 mi

US $6
cracked vacuum lines for Secondary Air Injection system caused CEL to come on 
Sep 2010

102000 mi
Failing clutch pack in automatic transmission. On hold while we research solution options (shop repair, self repair, convert to manual transmission) 
Mar 2011

105000 mi

US $4000
Automatic transmission clutch basket failure 
Jul 2012

113200 mi

US $4100
Defective electric fans and controller, stuck thermostat 
Audi A6 / S6 in Florida, United States
Oct 2007 - Mar 2012
Nov 2007

48000 mi

US $200
Mass air sensor problem. Audi paid for the part, I paid for the installation 
Dec 2007

48000 mi
Brake light came on again during hard high speed left turn. Originally a problem in August the dealer looked at it and said fluid low. Topped up fluid again problem has not reoccured 
Mar 2008

51000 mi

US $130
CV boot split and was replaced. 
Jun 2008

52000 mi
Door pocket flaps were broken on both front doors. Repaired by dealership at no cost 
Nov 2008

53000 mi

US $1700
Thermostat went so also replaced water pump, timing belt, serpentine belt, tension rollers, expansion tank which had cracked. 
Jan 2010

58000 mi

US $100
left front rubber front drive shaft boot replaced 
Jun 2010

59000 mi

US $1600
Right front CV boot replaced and seal on quattro differential to the rear of transmission. Noticed leaking oil. 
May 2011

65300 mi
Right front passenger window would not go up all the way. Lubricated tracks 
Dec 2011

67000 mi

US $500
Replacesd valve cover gasket which was leaking 
Audi A6 / S6 in Minnesota, United States
Sep 2009 - Nov 2009
Nov 2009

110000 mi
Needed a new catalytic converter when sold. 
Audi A6 / S6 in New Jersey, United States
Jan 2007 - Jun 2018
Feb 2007

48000 mi

US $50
Heated seat element replacement. Audi does nto provide the total cost, but it was large. I paid only $50 deductible 
Mar 2007

49000 mi

US $265
Torn CV boot replaced. Driveable but would have resulted in permanent damage to joint. 
Jun 2007

50000 mi
Thermostat stuck - closed. Car was in danger of overheating. No price give, but this is a 5-7 hour job on a 4.2L audi. Covered under COP warranty. At the same time I paid to have the 60k timing belt service done (since the first 5-7 hours were covere 
Oct 2007

53000 mi

US $1100
Failing Tie Rod ends (both) and upper control arms (RF). Control arms possibly damaged by previous work - not sure. Also did alignment and preventative replacement of cracking CV joint boot. 
Sep 2010

67000 mi

US $150
clamps and tubing connecting cats to mufflers rusted away and was replaced with new. 
Dec 2010

68000 mi

US $300
Sun visor broke, Had to be replaced, as well as securing clip. 
Jan 2011

70000 mi

US $40
coolant temp sensor failed. I ordered parts, antifreeze, and did the job myself. 1+ hours work ( reported at zero cost) + $40 total parts. 
Jun 2011

72000 mi

US $511
right front wheel bearing making significant noise 
Aug 2012

81700 mi

US $800
Broken rear spring required replacement of set, alignment. At same time other components were replaced, bringing total to about $1700. Thee incremental costs were not included. 
Nov 2014

93900 mi

US $150
Power steering pump noise and aerated fluid. Found loose connection to fluid reservoir. replaced hose, tightened and check some other odd (unrelated) issues. 
Jun 2015

96000 mi

US $50
Not sure, not fully identified. Steering noise and mechanical "something" felt. Could be a ball joint but they all feel tight. Could be an obstruction, but none yet found. On the S6 the rack is buried. More to come 
Jul 2015

96200 mi

US $200
Diagnosed and replaced LF upper control arm. 
Mar 2016

99000 mi

US $15
Replaced worn out (torn) vacuum lines that caused a CEL. 
Sep 2016

100000 mi

US $100
corrected sticky piston, replaced piston seal, greased sliding rails. Also did rotors (IMO prematurely) but did not include time or cost per your instructions. 
Feb 2018

105000 mi

US $500
wheel bearings replaced, slight movement and noise detected 
May 2018

105000 mi

US $200
two upper control arms replaced. Slight movement and noise. Known to have short life. 
Audi A6 / S6 in District of Columbia, United States
Oct 2009 - Dec 2010
Aug 2010

76900 mi

US $350
Both mufflers replaced, one under Midas warranty. 

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2002 Audi A6 / S6 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

Audi A6 / S6 in Washington, United States
Mar 2011 - Feb 2012
Oct 2011

110000 mi

US $1500
ABS Pump/Module failure and one wheel sensor. Parts replaced and warning code cleared. 
Audi A6 / S6 in Tennessee, United States
Sep 2010 - Mar 2011
Oct 2010

112000 mi

US $180
two vacuum leaks: one hose and a 'nipple' broken off manifold changeover valve. 
Nov 2010

113000 mi

US $200
Electrical connectors on timing sensors were broken and had to be replaced. I 'believe' this damage occured at another repair shop. Dealer had to order parts - 3 days - and fix. Previous repair shop repaid me half of repair. 
Audi A6 / S6 in Massachusetts, United States
Apr 2008 - Oct 2009
Jul 2008

89000 mi

US $1500
Catalytic converter 
Apr 2009

103000 mi

US $75
Brake light switch 
Jun 2009

105000 mi

US $85
Flasher relay 
Oct 2009

106000 mi
Back window washer was getting no water. 
Audi A6 / S6 in Minnesota, United States
Jun 2013 - May 2014
Dec 2013

105000 mi

US $500
Oil leak from head gaskets. 
Feb 2014

106000 mi

US $520
Oil leak from filler cap. Replaced Breather valve(PCV) and hoses. 
May 2014

109000 mi
Bunch of misfires. O2 sensor light came on and stayed on. 

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2002 Audi A6 / S6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A6 / S6 in Maryland, United States
Feb 2010 - Jun 2018
May 2010

91000 mi

US $400
Check Engine Light for rich air/fuel mixture. Was caused by a faulty part and associated sensors. 
Sep 2010

94000 mi

US $250
The belly pan, aka the "sound deadening shield" (as Audi calls it) underneath the engine fell off while driving at low speeds and had to be replaced. Changed out tires and oil while car was at shop.  
May 2011

102000 mi

US $850
Developed exhaust leak behind (after) cats. Entire cat-back (pipes, resonator, mufflers) had to be replaced. 
Nov 2011

107800 mi

US $1700
Leaking brake system, required replacing master cylinder and both rear calipers. Both front CV boots were torn/leaking and fixed by replacing both front axles (including new CV boots). 
Jul 2012

116000 mi

US $750
ABS light was on due to faulty sensors and bad control module. Diagnostic completed and sensors replaced by shop, but control module will be replaced by owner (self) in the near future. 
Dec 2012

117000 mi

US $1300
Failed water pump replaced along with full timing belt job (timing belt and all related seals). 
Audi A6 / S6 in Massachusetts, United States
Jan 2005 - Jun 2007
Nov 2005

55000 mi

US $650
I had the gas tank fixed as a leak between the fuel pump and the tank occured. The tank's flange for the fuel pump (a solid piece of the tank) cracked and the whole tank needed to be replaced. 
Oct 2006

69000 mi

US $820
I had the timing belt done wich included the water pump and all assosciated belts and kits. 
Mar 2007

73000 mi

US $250
Unfortunetly a wheel bearing went. Needed to repair the wheel bearing and potentially the brakes. Will update it when I complete the repair. 
Audi A6 / S6 in Massachusetts, United States
Feb 2008 - Mar 2010
Mar 2008

86000 mi

US $700
Torn CV boot. Had replaced opposite side 6 months ago, it was only a matter of time. Still waiting to see if clicking of CV's continue or if the boot was the only necessary repair. 
Sep 2008

91000 mi

US $300
CV joint needed to be replaced. Clicking in joint became excessive due to wear while boot was torn. Had to replace whole axle (half shaft) with joint and boot. Not cheap from the dealer. Also changed oil and filter while under the car and tightened susp. 

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2002 Audi A6 / S6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

Audi A6 / S6 in California, United States
- Mar 2006
Jan 2005

50000 mi

US $1600
water pump repair 
Mar 2005

51500 mi

US $500
maf replacement 
Jan 2006

58000 mi

US $1600
water pump repair 
Mar 2006

61000 mi

US $500
maf replacement 
Audi A6 / S6 in Florida, United States
Oct 2009 - Mar 2010
Dec 2009

81000 mi

US $488
Leaking cam seals. Brake booster hose replaced. 
Audi A6 / S6 in New York, United States
Mar 2009 - Feb 2011
Apr 2009

93000 mi

US $600
Auxillary water pump had to be replaced. Known problem on the 2.7t motors. Part costs 100 but the work to replace it was hefty. Quattroworld.com (EuroVWGTi) 
May 2009

94000 mi

US $300
One of the three 10mm bolts that hold the rear driver side timing belt cover, came loose. Little by little as it came out, it was shredding the timing belt. Half the belt was destroyed, while the cover rubbed on the rest of the belt. Belt almost broke. 
Audi A6 / S6 in New Hampshire, United States
Dec 2008 - Oct 2015
Aug 2008

88000 mi

US $650
repair AC leak 
Nov 2009

98000 mi

US $2000
outer CV joint boots, right valve cover gasket,rear transfer case seal, Front brakes inc. rotors, service transmission, service final drive system. 
Oct 2010

111000 mi
They had to get the directionals fixed, not sure if it was bulbs or a flasher but it was very inexpensive. 
Jun 2012

129000 mi

US $210
replace rear axle seals 
Dec 2012

132000 mi

US $25
windshield wiper stems/shafts were seized the lubricant had dried up and hardened. Wiper mechanism was removed cleaned and relubricated 
Jun 2013

134000 mi

US $400
center muffler in the exhaust had corroded so the hangers failed. I replaced the center muffler 
Oct 2015

149000 mi

US $600
Water pump starting to leak. So I went ahead and had the full timing belt service done, which includes new water pumps 
Audi A6 / S6 in Texas, United States
- Feb 2009
May 2007

55000 mi

US $86
(DIY) broken seat belt latch necessitated replacement. 
Dec 2008

75250 mi

US $20
(DIY fix, parts only). Got "system too lean" codes and a check engine light, replaced numerous cracked and worn vacuum tubes around the engine. 
Feb 2009

75500 mi

US $100
$100 cost is for rebuilt parts only, since this was a DIY repair. The front/passenger CV boot disintegrated so I replaced the whole assembly. Looking into the cars history, the same position's boot failed at 40,000 miles. 
Audi A6 / S6 in Missouri, United States
Feb 2008 - Sep 2012
Mar 2008

79000 mi
Broken headlight washer valve resulting in leaking washer fluid. Must refill once a week. 
Mar 2009

95000 mi

US $1200
Washer nozzle assembly. Water pump, tensioner. 
Jun 2009

97000 mi

US $250
1 bank of coils (3 coils) went out. 
Jul 2011

122000 mi

US $1280
Aux water pump failed due to crack. Replaced pump. 
Jul 2012

135000 mi

US $800
Aux fan broken and needed repair. Aux fan control module needed replacement. 
Audi A6 / S6 in Ontario, Canada
Oct 2014 - Jun 2017
Aug 2015

75000 mi
Shocks worn out replaced them and new sport springs 
Feb 2016

79980 mi

C $300
clock spring inside the steering wheel 
Mar 2016

80600 mi

C $90
Relay for the turn signals 
Apr 2016

81300 mi

C $600
Lower control arm bushings 
Jun 2016

83700 mi

C $400
Subframe bushings at the rear - caused the car to loose its control over the rear wheels ruined the tires as it took the alignment out dramatically. 
Nov 2016

88080 mi

C $200
Self level headlight control 
May 2017

94860 mi

C $2100
complete steering rack replaced - boots started filling and then leaking 
Audi A6 / S6 in California, United States
- Sep 2009
Jun 2006

55000 mi

US $800
Replaced leaking auxiliary (turbo) water pump 
Sep 2009

84000 mi

US $700
Replaced 2 oxygen sensors that caused "check engine" light. 
Audi A6 / S6 in Wyoming, United States
Sep 2010 - Mar 2011
Feb 2011

99000 mi
Have not fixed the light code. They are not moving like they should. We have not repaired yet because Audi dealership is 110 miles away. 
Audi A6 / S6 in Pennsylvania, United States
Aug 2009 - Aug 2011
Jun 2011

99000 mi
Replaced front right CV Joint and boot. 
Audi A6 / S6 in Illinois, United States
Nov 2010 - Oct 2012
Feb 2011

43600 mi

US $1250
Blown block plug drivers side. Oil gushed out. Plug blown on exteremly cold day, car not allowed to warm sufficiently prior to driving 
Jan 2012

50000 mi

US $300
axle grommet 
Oct 2012

55000 mi

US $400
mass airflow meter 
Audi A6 / S6 in Washington, United States
Jan 2007 - Dec 2018
Dec 2007

67000 mi

US $235
Diagnosed as thermostat stuck open and small coolant leak from after-run pump. Quoted to include replacement of timing belt, water pump and other items pulled off during maintenance, but too rich for my blood today. After my spring bonus maybe... 
May 2008

70000 mi

US $950
After run coolant pump replaced. Replaced broken Alarm Sensor disable switch. 
Jul 2008

71000 mi

US $590
Main vacuum line was improperly reinstalled during last repair, which then broke while driving, resulting in rough idle and engine misfire. 
Dec 2008

79000 mi

US $1200
Both cats replaced due to faulty repair problem reported in July. CV Boot replaced Rear differential fluid leak - replaced seal and fluid. 
Mar 2010

97000 mi

US $1575
Replaced alternator and battery - complete electrical failure. 
Dec 2010

105000 mi

US $3300
Oil leaking from turbo seals 
Sep 2011

115000 mi

US $1345
Fixed leaky front differential Fan motor failed, fan was replaced 
Dec 2011

120000 mi

US $2950
Check engine light (Po741) came on at about 119,000. It was a malfunction in the torque converter. Replaced the unit - hard decision to make but I love the car. If not replaced, gas mileage would have stayed poor. 
Apr 2012

126000 mi

US $560
Gasket leak caused engine to misfire. replaced gasket, cleaned the oil from the cylinder and replaced 3 spark plugs. 
Jun 2012

129000 mi

US $1089
Car developed a whine in the drivetrain. Replaced CV boot on front left and wheel bearings on front right. 
Aug 2015

138000 mi

US $580
ABS and brake warning lights came on. First diagnosed as brake fluid pressure issue. Unit replaced - problem stayed. Eventually replaced the brake sensor - problem fixed. 
Feb 2016

139300 mi

US $1050
Replaced torn CV boot on front axle. 
Feb 2017

141000 mi

US $50
CIL on for a long time, asked to check it out. After 2 days to diagnose, smoke test found small leak in fuel tank vent. Requires tank removal to fix. More than value of car. Hope to reset CIL and pass emissions at next registration or byebye 
Audi A6 / S6 in Utah, United States
Nov 2013 - Mar 2015
Sep 2014

175000 mi

US $35
Replaced speed sensor and changed transmission fluid. 
Audi A6 / S6 in Pennsylvania, United States
Feb 2011 - Sep 2013
Mar 2011

111000 mi

US $300
Egt sensor replaced, air leak fixed Exhaust gas temperature sensor replaced, small vacum leak fixed 
Jun 2011

115000 mi

US $200
Clip broke off from one of the coolant lines, coolant leaked out everywhere, also had to replace thermostat (sensor) 
Nov 2011

116800 mi

US $1400
One of rollover nipples broke on gastank, had to replace gas tank. MAP sensor failed, bought online and replaced myself 

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2002 Audi A6 / S6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 / S6 in Washington, United States
Apr 2008 - Apr 2015
Aug 2009

101000 mi

US $1000
Rear Caliper became defective. Torn Boot. Replaced both calipers as well as rotor and pads. 
Sep 2009

104000 mi

US $415
Intake Manifold - Free Up IMT Valve Shafts, replaced worn vacuum hoses Replaced leaking expansion tank 
Jun 2010

111000 mi

US $1000
replaced O2 sensors and purge valve. Changed oil also 
Nov 2010

116000 mi

US $600
Oil cooler seals and transfer pipe. Parts $105 Labor $495 
Feb 2011

119000 mi

US $225
Tie Rod with Rubber Dampening replaced right side. Excessive play in old tie rod, but not bad for 120K Miles 
May 2011

123000 mi

US $1600
Replaced Four Upper Control Arms with Ball Joint and Bushings. Aligned afterwards 
Aug 2011

127000 mi

US $1278
Coolant sensor defective. Caused minor starting problem associated with computer thinking the engine was overheated. 
Jun 2012

137000 mi

US $1320
Right and Left Outer Tie Rods were worn with significant play Replaced Serpentine Belt 
Dec 2013

154000 mi

US $1800
Replaced all upper arms (4 front - 2 rear) I took the Audi in to a local brake shop to have my brakes checked, knowing that I was getting close to needing replaced. The calipers on the rear had failed which was causing that annoying grinding sound. 
Jul 2014

158300 mi

US $330
Replaced bad Secondary Air Pump pipe 
Oct 2014

160200 mi

US $150
Transmission is toast. slipping gears. only solution is new transmission 
Apr 2015

161000 mi
Car sat all winter, then was sold with the transmission still slipping. 
Audi A6 / S6 in Texas, United States
Aug 2010 - Dec 2015
Jun 2011

126000 mi

US $2000
Oil leak and small hole in oil pan. AC blower motor failed. Noisy power steering pump. Headlight switch nob broke. 
Jun 2013

150000 mi

US $350
Vacuum hose replaced to address check engine light. 
Audi A6 / S6 in California, United States
Nov 2008 - Jan 2013
May 2010

104000 mi

US $624
replaced O2 sensor coolant container was cracked and replaced right front outer cv boot was cracked and replaced 
Jul 2010

107000 mi

US $1835
Thermostat failed - replaced tstat, water pump seeping - replaced timing belt, serpentine belt, water pump, 
Jan 2012

124000 mi

US $200
replaced seeping valve cover gaskets replaced turn signal relay 
Jan 2013

140000 mi

US $125
O2 sensor showed fault code. CEL went out and has not returned. 
Audi A6 / S6 in Washington, United States
Apr 2009 - Jun 2018
May 2009

66300 mi

US $653
Oxygen sensor replacement. Secondary Air Injection system failed 5 hours after a previous service. Shop "fixed" the problem, but it then came back.  I later troubleshot and fixed the problem myself. I gave the SAI system a good going over and found a vacuum line to the combi valves had become disconnected. Reconnected it and voila! No more error codes. Replace 2x front oxygen sensors. 
Oct 2012

93700 mi

US $550
Transmission fluid change. Driveshaft tail seal minor leak since March 2011, finally had it replaced. 
Oct 2015

105000 mi

US $985
Secondary air pump required replacement along with some associated vacuum lines. 
Apr 2018

115000 mi

US $1800
Coolant expansion tank cracked Replaced CV boots 

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2002 Audi A6 / S6 4dr Sedan

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

Audi A6 / S6 in Denmark
- Apr 2002
Apr 2002

105400 mi

$260000
a lot ! 

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2002 Audi A6 / S6 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

Audi A6 / S6 in Maine, United States
Jan 2007 - Jun 2018
Mar 2007

74000 mi

US $1000
Steering pump replacement Vacuum lines in engine and cooling system leak. 
Jun 2009

82000 mi

US $253
Check engine light was on. Left catalytic converter has a problem. 
Apr 2010

84000 mi

US $1400
Engine suddenly seemed to be missing a cylinder, replaced one ignition coil. Replaced O2 sensor after shop said computer analysis found that one was bad. 
Feb 2011

86000 mi

US $150
CV boot was split 
Feb 2013

98000 mi

US $1600
Also repaired left front CV boot (this one was broken - not preventive). 
Jan 2014

118500 mi

US $50
Air leak into suction hose of power assist unit, made wailing noises in cold weather. 
Sep 2015

117000 mi
Rear coils rusted out and to be replaced when part arrives next week. 
Oct 2015

117700 mi
replaced rear coils, don't remember how much it cost 
Mar 2016

124000 mi

US $800
Replace Valve cover gasket. Also replaced transmission fluid 
Dec 2016

130000 mi
Rear brake was rubbing, something was frozen. 
Jun 2017

131000 mi

US $2130
Broken cam gear. Replaced gear, timing and other belts, timing case housing and seals. 
Audi A6 / S6 in California, United States
Feb 2008 - Mar 2010
Aug 2008

56000 mi

US $500
Had to replace outer CV boots, as they had cracked and were leaking grease. Apparently this is a common problem for A6 owners. 
Mar 2009

63000 mi

US $100
Thermostat failed in the locked position, causing the vehicle to overheat. Head gasket may be damaged. 
Jun 2009

65000 mi

US $100
Ignition coil failure, car ran REALLLLY rough. New coil installed on cyl #5 and ran smoothly. STILL have a weird smell going on... 
Audi A6 / S6 in Oregon, United States
Dec 2010 - Apr 2013
Oct 2012

169000 mi

US $350
replaced CV joint boot. 
Apr 2013

175000 mi
Radiator leak. did not fix. 
Audi A6 / S6 in Minnesota, United States
Jan 2007 - Jun 2018
Oct 2008

72000 mi

US $540
CV Joints (both) were shot and had to be replaced. 
Sep 2012

99000 mi

US $212
Engine temp sensor leak (coolant leak) 
Mar 2013

102000 mi
Check engine light reset, pre-cat converter fault 
Aug 2013

104000 mi
Check engine, suspect catalytic converters, reset check engine 
Oct 2013

105000 mi

US $2010
Catalytic Converter replaced (both) 
Feb 2015

111000 mi

US $171
Coolant temp sensor orang leak. 
Apr 2015

112200 mi

US $1100
Water pump went out, pushed into timing belt, replaced pump, idlers and timing belt 
Nov 2015

114000 mi
replaced passenger side CV Joint/boot 
Feb 2016

114000 mi

US $420
Serpentine belt tensioner failed, had to replace tensioner and belt. 
Aug 2016

116300 mi

US $890
Replaced windshield washer fluid tank and hoses. replaced driver side headlight height adjustment control arm. was squeaking when going over bumps. 
Audi A6 / S6 in Colorado, United States
Aug 2008 - Apr 2011
Dec 2008

58000 mi

US $3400
I had a vacuum leak in the brake system, 5 of 6 failing coil packs, and my lifters were damaged and rubbing. I got all this fixed along with my scheduled TB maintenance. 
Apr 2010

88000 mi

US $175
Coolant leak from a damaged hose. Hose replaced. 
Jan 2011

102000 mi

US $400
Replaced front left boot. 
Audi A6 / S6 in Oregon, United States
Dec 2011 - Jun 2013
Feb 2012

58400 mi

US $397
warning light came on, replaced the thermostat. warning light came on again, replaced the sensor 
Oct 2012

63500 mi

US $3200
engine oil leak that required pulling the timing belt cover and housing. replaced timing belt, required at 10 years anyway. broken engine mount and core support mount. 
Audi A6 / S6 in Pennsylvania, United States
Aug 2008 - Mar 2010
Aug 2009

105000 mi

US $500
Passenger side axle replacement While on the rack for the axle repair, our (dependable, trusted) mechanic noticed our center differential seal leaking. We replaced seal, all 3 diffs fluids, transmission filter and new trans fluid. Mechanic damaged exhaust flex joint. Cut out and soldered new one in its place. I paid for the flex joint, and he comped me the labor. 
Audi A6 / S6 in New Jersey, United States
Jul 2014 - Sep 2014
Jul 2014

83000 mi

US $367
Economy button would stay on climate control module and blow hot air. A/C system diagnostics . A/C high pressure switch with seal replaced system recharged and filled with dye leak detection fluid. Engine light was on. Engine scan code came up as minor leak. car had a after market eval purge valve. It was no good and replace withe OEM one. 
Aug 2014

83700 mi

US $111
Engine light on, Code read camshaft position sensor left side. 
Sep 2014

87000 mi

US $650
CEL came back on . After smoke test it was determined that fuel tank was cracked. Tank replaced 
Audi A6 / S6 in Virginia, United States
Nov 2009 - Nov 2013
Jan 2010

US $1000
Replaced plugs and coils. mechanic said valve cover gaskets leaking and made sense to go ahead and repair even though may not have been that much of an issue at this point. Probably would have gotten worse if not corrected? 
Jun 2012

100000 mi

US $1500
Thrust and control arms in front 
Oct 2012

102500 mi

US $200
CV boot torn 
Apr 2013

117700 mi

US $220
Replace torn cv boot 
May 2013

119000 mi

US $520
Ignition housing broke where key is inserted. Car would not start and had to be towed to repair shop. 
Oct 2013

124000 mi

US $657
Misfiring badly. Needed new crankcase ventilation valve and plugs. Still runs a little rough at idle, but no codes! 
Nov 2013

124000 mi
Misfire returned a few weeks later. Mechanic suggested ditching it. 
Audi A6 / S6 in Tennessee, United States
Feb 2010 - Aug 2010
Aug 2010

86000 mi
driveshaft seal leaking bad left cat 
Audi A6 / S6 in Virginia, United States
Feb 2010 - Jul 2017
Apr 2010

90500 mi

US $150
Check engine light on for about a week-code p1296 then started overheating. Dealer advised to replace waterpump, timing belt, etc for $1800. Towed to independent garage--said it was the coolant temp sensor, they fixed for $150 including the tow. 
Aug 2010

93000 mi

US $1000
Replace defective oxygen sensors Replace front axle 
Sep 2011

103000 mi

US $783
Water pump failure. Replaced water pump and timing belt.  Also replaced front engine mount during repair. 
May 2012

109100 mi

US $128
Replace ignition coil 
Sep 2012

112000 mi

US $300
Replace rear wheel hub bearing 
Sep 2014

133000 mi

US $1900
Car jumped into neutral while driving, safe mode. Transaxle & Transfer Case replaced. 
Apr 2015

139500 mi

US $198
Replaced front drive axle 
Audi A6 / S6 in New York, United States
Jan 2016 - Jan 2016
Jan 2016

128000 mi

US $1600
MIL code came bad/malfunctioning TCM or torque converter. Total rebuild plus new torque converter 
Audi A6 / S6 in Oregon, United States
Sep 2016 - Oct 2016
Sep 2016

110000 mi

US $800
Emissions issues, air leaks. Attempted to repair by replacing air hoses but did not resolve. 
Audi A6 / S6 in Florida, United States
Mar 2009 - Apr 2013
Nov 2009

113000 mi

US $80
Ignition coil replaced less than a hundred miles after the timing belt repair.  
Feb 2010

120700 mi

US $250
replaced the 5 other ignition coils because of continued problems. Also put in a K&N air filter 
Jul 2010

134700 mi
Blinkers have stopped working. Relay is suspected although hazards still work. Update: fixed soon after. 
Audi A6 / S6 in Florida, United States
May 2009 - Jun 2011
Jun 2009

58648 mi
Purchased car. During test drive, the "oil" light came on. Turned out to be faulty sensor - obviously dealer covered - believe it was $29. I replaced oil, filter, gear oil & spark plugs for $115 (synthetic oils) to give myself solid baseline. 
Sep 2009

61000 mi

US $220
Replaced tranny snub mount (shot)  Broke a 4" rubber power steering line in process & replaced/flushed that too. Trans range sensor was faulty. "17090 - trans range sensor (f125): Implausible signal P0706 - 003 - mech failure - intermittent - MIL on" was my code. $220 part AND pain to replace!! I created writeup on Audiforums.com - check DIY section. 
Audi A6 / S6 in Massachusetts, United States
Jun 2009 - Sep 2012
Sep 2009

226000 mi

US $160
car not firing on all cylinders, turned out to be a faulty coil. Replaced coil and solved problem 
Nov 2009

228000 mi

US $1100
Radiator leaked, car overheated, towed to shop and radiator replaced. While at shop check engine light on, cat codes - replaced mass air sensor.  Then another coil needed replacing. Passed inspection, got sticker. Also got recall for faulty coils. 
Jan 2010

231000 mi

US $350
belt tensioner let go, belt no longer attached. Replaced belt and belt tensioner 
Jul 2010

235300 mi

US $110
oil level sensor failed - display came on noting sensor failure. Part replaced 
Jan 2011

232800 mi

US $420
check engine light; camshaft sensor faulty catalytic converters bad, cat cnvrtr still bad Coolant leaking. Coolant tank replaced, coolant leak shorted out camshaft sensor.  Exhaust pipes leaked, welded on new pipes. 
Mar 2011

247000 mi

US $2200
Replaced catalytic converters, check engine light now off, car runs great. 
Sep 2012

259000 mi
water pump let go; last replaced at 205,000 miles. Will not make the repair due to cost - traded car in on another vehicle. 
Audi A6 / S6 in North Carolina, United States
Aug 2006 - Sep 2016
May 2006

37000 mi
Passenger side valve cover Gasket replaced under CPO 
Jul 2006

41000 mi

US $75
Replaced all spark plugs (self) 
Aug 2006

42000 mi

US $59
Drained and flushed complete Brake system. 
Sep 2006

42000 mi

US $110
Drained and flushed complete brake system by dealer including flushing the ABS module, to improve brake pedal modulation. 
Feb 2007

52000 mi

US $135
Both front CV boots torn, replaced by Audi of America under good will, I paid $135, dealer and AOA covered the rest. 
Jun 2007

56000 mi

US $50
Pulley seized causing water pump to blow. Water pump, timing belt and all related items covered under CPO. 
Aug 2007

59000 mi

US $50
A/C blower fan replaced under CPO. 
Sep 2008

65000 mi
Cat Replaced by Dealer under warranty 
Oct 2008

65500 mi

US $46
Drained and flushed power steering fluid 
Nov 2008

67000 mi

US $75
Cat replaced 
Feb 2010

79000 mi

US $775
- Belt tensioner - Hazard switch - Window regulator 
Mar 2011

93000 mi

US $157
Camshaft damaged by a loose spring on driver side. Total damage $3290, warranty covered repair. 
Aug 2011

98000 mi

US $377
Brake booster repair Engine mounts Cam positioning sensor Purge valve clogged 
Audi A6 / S6 in Illinois, United States
Jan 2013 - Dec 2013
Feb 2013

128000 mi

US $120
Oil Temperature Sensor / Oil Level Sensor in oil pan replaced. I no longer get the amber alert for the sensor, but my oil temp sensor no longer provides a temp reading. 
Jul 2013

132500 mi

US $300
All Wheel alignment that could not be corrected at regular tire shop. Sub-frame had to be adjusted for tru alignment.Discovered many other needed repairs that will be done LATER. Control arms, valve cover seals, motor mounts and snub. 
Oct 2013

135000 mi

US $2300
replaced all control arms, all tie-rods, front shocks,  motor mounts (3).  Valve cover seals. 
Dec 2013

135000 mi
No oil temp reading. 

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2002 Audi A6 / S6 4-door

8-cylinder automatic AWD

Audi A6 / S6 in California, United States
Jan 2007 - Mar 2010
May 2007

48000 mi

US $160
DS outer CV boot leak... replace. 
Oct 2007

50000 mi

US $195
Expansion coolant tank cracked and coolant leaked. 

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2002 Audi A6 / S6 4-door

10-cylinder automatic AWD

Audi A6 / S6 in Nevada, United States
Feb 2007 - Mar 2010
Jun 2007

64000 mi

US $300
Knock sensor and Air pump for secondary air went out. I buy parts wholesale so the dollar value is low. 
Feb 2008

74000 mi

US $300
Replaced upper control arms due to vibration. 

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2001.5 Audi A6 / S6

Engine not specified

Audi A6 / S6 in Texas, United States
Apr 2012 - May 2012
May 2012

185000 mi

US $1000
Fuel Pump went out and needed to be replace or car will not start. 

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2001.5 Audi A6 / S6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A6 / S6 in Connecticut, United States
Aug 2008 - Mar 2010
Sep 2008

73000 mi

US $700
Upper and lower control arms. 
Mar 2009

78000 mi

US $600
Secondary water pump. LCD in cluster. Torn boot on turbo duct. 
Jun 2009

81000 mi

US $350
Failed Bank 1 EGT sensor 

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2001 Audi A6

Engine not specified

Audi A6 in Michigan, United States
Nov 2007 - Mar 2010
Dec 2007

93000 mi

US $800
Turbos went out. Also got timing belt replaced. Dealer also replaced rear window switches (also out). Dealer also replaced instrument cluster (faded). 
Audi A6 in Pennsylvania, United States
Feb 2012 - Mar 2012
Mar 2012

170000 mi

US $800
Changed the Oxygen sensor, cost just under 800 dollars. 
Audi A6 in Illinois, United States
Sep 2010 - Dec 2011
Oct 2010

199000 mi

US $600
replaced oe struts at all for wheels, also took it to a shop for an alignment. only problem i had with the shop was i had to supply a tool of my own to perform the job. 
Dec 2011

218000 mi
had the trans rebuilt in april now it did not hold up. it is back at the shop that did for warrenty repair. the coolant reservoir tank started to leak 
Audi A6 in Connecticut, United States
Nov 2010 - Jun 2011
Dec 2010

164000 mi
Car currently drivable but needs the following repairs: cat converter, torque converter, rear main seal, driver's heated seat. Car has 164,000 miles, repair costs would be north of $4,000 so I am driving into the ground. Engine runs great. 
Audi A6 in Missouri, United States
Aug 2010 - Dec 2010
Sep 2010

145000 mi

US $3000
oil cooler radiator leak valve camshaft tensioner code...did not fix yet 
Dec 2010

150000 mi

US $500
low oil pressure light came on....engine not fixable, deceased at 160,000miles 
Audi A6 in Illinois, United States
May 2007 - Mar 2010
Jun 2007

62000 mi

US $650
left control arm and left cv boot 

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2001 Audi A6 4dr Wagon

340-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 in Great Britain
Mar 2011 - Mar 2016
Jul 2011

153000 mi

£120
Replaced split CV joint boots 
Apr 2015

180000 mi

£40
Broken scuttle on bottom of windscreen. Caused when a windscreen was replaced under insurance cover. 
Jan 2016

£1400
Strut top mounts 
Mar 2016

187000 mi

£280
tie rods worn 

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2001 Audi A6 4dr Wagon

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

Audi A6 in California, United States
Jul 2008 - Nov 2012
Aug 2008

90000 mi

US $50
Reflash for ECU... Oxygen sensor reading too high. Replaced faulty coolant temperature sensor. 
Oct 2008

93000 mi

US $350
Coolant hose to the throttle body was broken. Both feed and return lines replaced. 
Dec 2009

107000 mi

US $1100
Two of the four oxygen sensors were bad, and the other two were performing substandard. Replaced all four oxygen sensors. 
Apr 2011

125000 mi

US $150
Coolant expansion tank cap replaced. It was leaking coolant under pressurized condition. 
Jun 2011

125000 mi

US $300
CV boot failed. Also replaced the transmission output seal on the passenger side. 
Oct 2011

135500 mi

US $50
O-ring for the coolant temperature sensor failed. 
Oct 2012

146000 mi

US $550
Alternator went out 
Audi A6 in Georgia, United States
Jan 2009 - Oct 2013
May 2009

41000 mi

US $500
Both front window regulators. 1 replaced, 1 repaired. 
Sep 2012

79000 mi

US $300
Thermostat 
Apr 2013

84300 mi

US $540
Window regulator 
Audi A6 in Massachusetts, United States
Aug 2011 - Jan 2013
Oct 2012

90700 mi

US $400
Windshield washer pump and controller replaced. Also a temperature sensor was replaced. 
Audi A6 in California, United States
Jun 2009 - Mar 2011
Jul 2009

83000 mi

US $50
Turn / hazard signal relay failed. 
Sep 2009

86000 mi

US $760
Water pump leak. 
Dec 2010

98000 mi

US $1300
Waterpump and thermostat leaking due to low quality parts of the previous timing belt job. 
Audi A6 in Maine, United States
Jan 2007 - Oct 2014
Mar 2007

85000 mi

US $2000
Steering rack developed fluid leak and needed to be replaced, as did steering sensor. Torn CV boot needed to be replaced. 
Nov 2007

95000 mi
Found and replaced broken coolant jug during routine timing belt/water pump replacement. 
Jan 2009

108000 mi

US $250
Valve gaskets were leaking, dripping oil onto manifold. 
Apr 2009

113000 mi

US $1536
Replace Air Bag control module  
Jun 2009

114000 mi

US $419
Transmission output seal was leaking. 
Feb 2011

128000 mi

US $200
Power window not working properly and door not closing properly 
Sep 2011

134000 mi

US $560
Replace strut assembly 
Oct 2011

134300 mi

US $359
cam tensioner gasket and valve cover gasket to fix oil leak 
Jul 2012

141700 mi

US $200
rusty muffler 
Feb 2014

157000 mi

US $900
Coils rusted out 
Audi A6 in New Hampshire, United States
Nov 2012 - Apr 2013
Dec 2012

116000 mi

US $1159
Thermostat, O2 sensor, replaced serpentine belt, and new plugs n wires, 
Feb 2013

118900 mi

US $680
Fuel Pump had to be replaced. Also Antifreeze fill tank had to be replaced as well as the moldy side mirrors. 
Audi A6 in Alabama, United States
May 2014 - Jul 2015
Jun 2014

125000 mi

US $300
replaced driver side lower control arm and passenger side outer CV boot. Replaced all Vac. lines and cleared p0441 code. 
Jul 2014

125800 mi

US $20
Replaced fuse in back of symphony radio. The removal tools (4) did not release the dual din radio. I broke the front button/display pannel off, then was able to pull the rest of the radio. Re-installed and now works fine. 

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2001 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A6 in Illinois, United States
Nov 2010 - Mar 2012
Dec 2010

102000 mi

US $350
Replaced worn outer tie rod ends causing unusual tire wear notices during annual change to snow tires. Replacement also required wheel alignment. 
Audi A6 in New Jersey, United States
Aug 2007 - Jul 2018
Oct 2007

73000 mi

US $90
R/R driver side CV Boot 
Jan 2008

79000 mi

US $5000
Timing belt, t-stat, tensioner, pulley, aux water pump, cam seals, cam tensioner gaskets, coolant temp sensor, clutch, pressure plate, flywheel, snub mount, Dahlbach chip. 
Sep 2008

85000 mi

US $40
Minor flat spots under acceleration. Replaced fuel filter and washers. Loss of coolant. Fixed by replacing expansion tank cap. 
Dec 2008

96000 mi
Fixed sunroof drain leak, which was causing headliner and trim water stains. Added hose clamps to hose connection on sunroof tray. 
Jun 2009

105000 mi

US $35
Replaced front tie rod ends. 
Jan 2010

122000 mi

US $230
Replaced driver's door locking mechanism, due to faulty microswitch that did not turn on door open signal. 
Feb 2010

123000 mi

US $160
Replaced center console armrest and cupholder Replaced passenger side front CV Joint Boot. 
Nov 2010

135000 mi

US $1000
leaky water pump. Replaced timing belt,water pump thermostat, various rollers and tensioners. about 55k on the timing belt, etc. A bit early, but leak justified the repair. Serpentine belt also. 
May 2011

142000 mi

US $300
Passenger side pre-cat O2 sensor replaced 
Jun 2011

146000 mi

US $800
Replaced engine/motor mounts. 
Oct 2011

147200 mi
rear driver side airbag short to ground. Airbag replaced. 
Feb 2012

153200 mi

US $80
Oil temp and level sensor failed. Replaced sensor. Replaced leaking coolant expansion tank. Noticed the coolant leak when I was replacing the oil temp sensor a week earlier. 
Jun 2012

154000 mi

US $710
Fuel pump failed 
Jul 2012

158000 mi

US $197
replaced 2 spark coils and left bank ignition control module 
Sep 2012

161000 mi
Airbag intermittent short to ground 
Dec 2012

162000 mi

US $5
Coolant. Fixed with a bottle of Bar's Leak. 
Jul 2013

172000 mi

US $1700
airbag light on. fixed by replacing rear seat driver side airbag replaced bank 1 pre cat O2 sensor replaced brake light switch and light bulb Coolant leak. fixed by adjusting hose clamp 
Aug 2013

172700 mi

US $2100
replaced water pump 
Sep 2013

173000 mi

US $20
Intermittent P0421 code for warm up cat inefficiency became a daily chore to clear. Inserted extender for Bank 1 post cat O2 sensor and solved the problem. 
Feb 2014

180000 mi

US $300
Needed new MAF sensor and ignition module 
Jun 2014

185000 mi

US $5
plastic coolant hose tee broke and was replaced with a brass tee. 
Mar 2015

202000 mi

US $50
Replaced passenger side front CVJ boot. 
Aug 2015

212000 mi

US $100
Lack of full turbo boost at WOT. Throttle body boot replaced due to leak under clamp. Replaced both diverter valves that had leaking diaphragms. Replaced vacuum hose to fuel pressure regulator. Replaced spark plugs. 
Mar 2016

225000 mi

US $120
replaced 2 spark coils 
May 2016

230000 mi

US $100
oil leaks fixed by replacing valve cover gaskets and cam chain tensioner gaskets/seals. 
Nov 2017

268000 mi

US $700
Replaced control arms and front shocks. Driver side front shock failed. Did both shocks and control arms and tie rod ends while the patient was open. 
Dec 2017

268000 mi

US $2
Replaced failed hose clamp on passenger side turbo hose. PITA to access clamp through wheel well. Hose hidden by frame cross member. Fixed boost leak that has been there for over a year. 
Jun 2018

277000 mi

US $3000
Clutch slave cylinder started leaking and clutch would not stay disengaged with pedal. Dealer tried new slave, but it couldn't disengage clutch, which was very stiff. Replaced clutch disk and pressure plate along with slave cylinder. Back on road. 
Jul 2018

277000 mi

US $45
MIL on. Cylinder 4 misfire. Replaced spark coil. 
Audi A6 in Nebraska, United States
Nov 2014 - Oct 2015
Jan 2015

141000 mi

US $350
Fuel injector o-rings replaced. 
Apr 2015

142300 mi

US $2490
Clutch failure. Dual-Mass flywheel failure. Clutch replaced. Dual-mass Flywheel upgraded. 
Audi A6 in New Jersey, United States
Jun 2014 - Apr 2016
Apr 2015

107000 mi

US $1000
Replaced all control arms, tie rods, rebuilt two drive shafts, replace one caliper, resurfaced all 4 rotors and replaced 4 sets of brake pads. 4 new bridgestone tires from Costco and an alignment from local shop. All done by myself. 
Apr 2016

111000 mi

US $180
The dash LED display pixels were bad since 2012, now I found out that the display can be replaced instead of replacing the entire cluster for $150 + shipping, it is no brainier. 
Audi A6 in
- Mar 2010
Sep 2006

61800 mi

$278
Bad ABS sensor in RR, had to replace bearing to correct 
Nov 2006

63694 mi

$584
Repl rack and pinion asy, steering 
Nov 2007

74960 mi

$335
Replace both front wheel bearings 
Jul 2009

91882 mi

$583
Repl a/c compressor 
Mar 2010

99381 mi

$717
repl both mufflers Repl cat. converter, scanned for error codes repl intake manifold damaged by overheating due to clogged cat converter 
Audi A6 in Tennessee, United States
Mar 2011 - Mar 2012
Oct 2011

111500 mi

US $300
vacuum hose 
Audi A6 in Washington, United States
Sep 2014 - Feb 2015
Sep 2014

143000 mi

US $1500
Water pump needed to be replaced. 
Audi A6 in Massachusetts, United States
Oct 2007 - Sep 2013
Nov 2007

90000 mi

US $2700
Clutch failure. Flywheel was also diagnosed as needing replacement. Not a catastrophic event...it was fine one day and failed the next morning upon startup. The pressure plate apparently was the culprit. 
Sep 2008

102000 mi

US $404
Auxiliary water pump leaking. Common failure with this engine. 
Oct 2008

105000 mi

US $1250
Defective rear view mirror replaced. 
Dec 2008

106000 mi

US $30
Coolant leak at temperature sender. Sender and O-ring replaced 
Mar 2009

111000 mi

US $35
Temperature sensor and O ring replaced due to coolant leak. 
Dec 2009

123000 mi
Vacuum hose split causing check engine light 
Jan 2010

124000 mi

US $480
Leaking oil from cam seals - replaced and problem solved 
Apr 2010

126000 mi

US $10
Vacuum line failed. Repaired with shrink tubing 
Oct 2010

132000 mi

US $15
Vacuum hose leak 
Nov 2010

133000 mi

US $75
Turn signal / emergency flasher switch relay replaced 
Mar 2011

136000 mi

US $215
Window regulator rattled. Rivet replaced to fix problem 
Dec 2011

142000 mi

US $190
Xenon headlamp out. Faulty ballast was replaced with used unit ($85). Dealer had diagnosed problem and quoted $675 to repair. 
Jun 2012

146000 mi

US $158
Passenger window mechanism failed. Window would not open or close. 
Jun 2013

154000 mi

US $1685
Timing belt tensioner replaced due to bearing failure. Power steering pump was initially replaced due to mis-diagnosis. Noise was actually tensioner. Fixed on 2nd trip after much 'negotiation' about the P/S repair. 
Audi A6 in Washington, United States
Sep 2011 - Jun 2018
Oct 2011

151000 mi

US $1039
Clutch started slipping under mild accelaration. Original clutch, lasted 150,000 miles. Replaced clutch and resurfaced dual mass flywheel. 
May 2012

156500 mi

US $380
Valve cover gaskets leaking severely due to excess pressure from plugged PCV/spider hose, a common issue. Replaced valve cover gaskets and installed vented oil cap to prevent immediate recurrence, will fix PCV/spider hose in near future. 
Sep 2013

168000 mi

US $2300
2 year old clutch slipping after 15000 miles due to poor driving habits. Replaced with stage 1 (RS4) clutch and lightweight single mass flywheel. 
Sep 2015

189000 mi

US $250
Replaced torn throttle body boot and commonly problematic "spider hose" PCV system with new silicon replacements. 
Dec 2015

192000 mi

US $120
Bank 1 ICM causing severe misfire in one cylinder. Verified by swapping ICM's, misfire followed. Replaced bad ICM. 
May 2016

196100 mi

US $330
Crankshaft position sensor plug damaged and sensor near edge of electrical tolerance. Verified by manipulating plug and electrical resistance test. Sensor replaced. Driver side tie rod end broken and loose in hub carrier but still attached and functional, made loud clunking while turning and driving over bumps. 
Apr 2018

224000 mi

US $500
Replaced worn control arms, shocks, brake pads and discs. 
Audi A6 in Pennsylvania, United States
Sep 2008 - Dec 2010
Oct 2008

84000 mi

US $2133
Battery indicator lit which turned out to be a bad alternator. Occurred 150 miles from home and dealer gouged me while remaining professional and pleasant. While on the lift for the alternator (and battery) replacement, mechanic noticed a torn CV boot (so they say). While on the lift getting problems 1 and 2 resolved, mechanic claims that cooling system was also leaking and needed $1,100 in non-descript repairs. I refused this having no prior symptoms. No coolant problem has emerged since (1,000 miles)!! 
Jan 2009

89000 mi

US $1200
Self-dimming LCD interior mirror failed and fluid drained out, rendering self-dimming feature inoperable. Shop replaced. Climate control blower motor had begun making noise but still operated. I suspected failing bearings ands eventual complete seizure so I had it replaced. Auxiliary electric coolant pump was found leaking during timing belt replacement and so was replaced. Also replaced all idler rollers , tensioner and main water pump during t-belt service, which is a regular maintenance item. Shop broke the windshield while trying to replace the mirror, so they replaced it at their cost (after I argued with them about 'sharing' the cost!). An oil smell (faint) could be detected inside car and while at the shop for the other service, they found both valve covers leaking. Both gaskets were replaced. While in the shop for other service, mechanic also noticed that plastic coolant tank was leaking and replaced. 
May 2010

103000 mi
Steering became less precise and rhythmic noise emanated from front wheel(s) which began to grow louder and was then accompanied by an out-of-balance sensation. Garage replaced lower control arms/bushings and re-aligned front end.. Shortly after replacement of lower control arms, car manifest a speed dependent vibration. Brought back to same shop who claimed they could not 'feel' or diagnose anything wrong with car. 
Jun 2010

103000 mi
Took car to a different shop for vibration problem. Had to accompany mechanic who then agreed he could feel vibration. Recommended new tires so I replaced all four despite two being ok. Vibration improved but was not eliminated. Decided to bring to actual Audi dealer instead of independent shop. Dealer agreed problem existed but pronounced the drivetrain sound and blamed aftermarket wheels (on car when bought 4 years prior!) Am at a loss now..... 
Sep 2010

108000 mi

US $360
Car is a twin turbo. The 'Y' horn which directs airflow to both sides of the engine had cracked at a sensor junction and had created an air leak. Also replaced spark plugs. 
Oct 2010

108000 mi

US $165
Persistent driveline vibration and hard throttle hickup. Fifth shop couldn't pinpoint solution and thinks as much as $8,000 would be required to fix, including turbo replacements (2), cat converter and driveshaft!! Am going to sell car!! 

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2001 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

Audi A6 in Massachusetts, United States
Feb 2009 - Jun 2018
Mar 2009

73000 mi

US $2500
Coolant low warning light; supplemental water pump replaced. Timing belt replacement 
Mar 2010

80000 mi

US $2500
camshaft adjuster seals leaking right control arm had too much play -- replaced 
Jul 2016

105000 mi

US $200
Replace auto dimming mirror 
Audi A6 in Minnesota, United States
Sep 2009 - Jun 2011
Dec 2010

95000 mi

US $1500
Replaced fuel line after discovering leak New front left tie rod end Hazard switch replaced after blinker lights quit working CEL caused by bad oxygen sensor in the catalytic converter 
Jun 2011

100000 mi
Bad oxygen sensor when sold. 
Audi A6 in California, United States
Feb 2010 - Sep 2015
Mar 2010

106000 mi

US $1000
replace valve cover gasket and cam plugs and cam adjuster seals. replace right front cv boot. 
Dec 2012

137000 mi

US $2700
replace torque converter 
Feb 2014

148000 mi

US $1400
Water pump failed, leaking coolant. Replaced water pump, thermostat, timing belt, etc. 
Audi A6 in Colorado, United States
Sep 2008 - Dec 2011
Oct 2008

65000 mi

US $3000
Supplemental water pump  tie rod replaced CV boot replaced Fluid filled engine mount. Warranty would only cover 20% of dealer estimated cost Auto dimming rear view mirror cloudy - warranty would not cover Auto stick shifter quit working. Warranty would not cover Oil return line on turbo - gasket replaced 
Aug 2009

74000 mi
Car stalled during high speed pass and engine acceleration resumed when backed off accelerator Oil leak from cam adjuster covers Upper control arm bushings replaced. Upper motor gasket set installed Tie rod end replaced. 
Mar 2010

86000 mi
Diagnostics and replacement of ignition control box 
Nov 2010

93000 mi

US $65
coolant tank replaced along with T connector for hoses connected to coolant tank 
Jun 2011

102000 mi

US $1100
control module and O2 sensor replaced. Brake fluid replaced 
Jul 2011

102500 mi

US $1700
Tensioner for timing belt failed. Replaced timing belt, tensioner and water pump. 
Oct 2011

105000 mi

US $100
Oil leak. Replaced seals on oil return lines to turbo. Also oil leaks from cam adjustor tensioner that were not repaired. Replaced CV joint boot 
Nov 2011

105000 mi
Additional oil leak. Cam plug replaced 
Dec 2011

105000 mi
Oil leak from turbo housing. Did not attempt repair. Traded car in. 
Audi A6 in New Mexico, United States
May 2009 - Nov 2016
Jun 2009

45000 mi

US $1100
Both front CV boots torn and leaking. Replace. 
Jan 2010

50000 mi

US $464
Oxygen sensor failed 
Jul 2010

53000 mi

US $230
Replaced right front window guide 
Jul 2011

56000 mi

US $700
Replaced viscous coupling in engine driven cooling fan, clean debris from between A/C condenser and radiator Engine oil and filter change. A/C service (added .5 lb refrigerant. Price included in fan clutch replacement reported separately. 
Jan 2012

59000 mi

US $1290
Air Bag control module failed fault 65535 
Aug 2012

60900 mi

US $950
Aux water pump leaking, Coolant expansion tank leaking. R and R both, flush, new G-12 coolant 
Dec 2012

63000 mi

US $2700
Elective service to repair numerous small oil leaks in engine top-end and transmission pan, transmission fluid service. 
Apr 2013

63625 mi

US $426
Replace rib belt and tensioner Replace rib belt and tensioner 
Feb 2015

73000 mi

US $736
R and R upper link bushings (4). Oil and Filter service. R and R driver's side rear brake light bulb (n/c) 
Jun 2015

75000 mi

US $1850
r and r all four oxygen sensors and coolant temp sensor to clear persistent "check engine" light. Only one sensor was bad, but dealer recommended replacing all four to preclude recurring visits. 
Jan 2016

61200 mi

US $1250
Replace left front half-shaft due to tear in boot and subsequent loss of lubricant and dirt ingestion. 
Jun 2016

80000 mi

US $317
Replace right front axle due to cracked boot and subsequent dirt/foreign object intrusion. 
Audi A6 in Illinois, United States
May 2009 - Sep 2011
Jun 2009

128000 mi

US $1800
Replaced auxiliary coolant pump. Replaced lower control arm. Differential seals. 
Audi A6 in California, United States
Oct 2007 - Mar 2010
Nov 2007

86000 mi

US $435
cam seals and cam tensioners coolant auxilary pump turbo by pass valves replaced power steering hose 
Jan 2008

86000 mi
Rollers. 
May 2009

103000 mi
leaking thermostat housing sensor in door handle for alarm replaced replaced child window lock switch in driver's door 
Dec 2009

108000 mi

US $100
replace blower motor in dash. replaced transmission mounts replaced coolant temperature sensor 
Mar 2010

113000 mi

US $2900
torque converter failed. Replaced, 
Audi A6 in California, United States
May 2008 - May 2010
Sep 2009

84000 mi

US $95
intermittent c.e.l. for oxygen sensors 
Feb 2010

87000 mi

US $900
Two bad oxygen sensors 
Audi A6 in California, United States
Aug 2011 - May 2013
Sep 2011

141000 mi

US $770
Valve cover gaskets and overhead cam seals replaced. Additionally coolant tank replaced. 
Sep 2012

164000 mi

US $190
Alternator failed and I replaced it with about 6 hours work. 
Audi A6 in South Carolina, United States
Aug 2010 - Feb 2012
Dec 2010

157000 mi

US $150
Oil pump failure Significant coolant loss--broken "t" fitting on hose to expansion tank. 
Mar 2011

162000 mi

US $250
Knocking sound that sounded like a failing CV joint turned out to be bad sway bar links. 
May 2011

180000 mi

US $950
Auxilliary fan working intermittantly. Replaced 
Audi A6 in Colorado, United States
Jan 2009 - Nov 2014
Aug 2009

116500 mi

US $180
Battery Failed Numerous fuses blew when battery was left dead for extended period of time. 
Apr 2010

118000 mi

US $120
Fan on front of AC radiator/coil failed - started whining loudly. 
Aug 2010

120000 mi

US $1500
Auxillary Water Pump Failed - started leaking 
Mar 2011

124000 mi

US $1800
Radiator fan failed Upper control arms cracked - replaced. 
May 2011

125000 mi

US $120
Liquid from inside auto-dim mirror began to leak out causing the mirror to be unusable/blurred. Lower exterior door strip/trim fell off. Receiving piece of drivers sun visor broke. 
Feb 2013

133500 mi

US $1800
major vibration from front of vehicle 
May 2013

135000 mi

US $691
Alternator died slowly. In the beginning it was just a battery drain. But after a few days of troubleshooting it was evident that the alternator was on it's last leg. 
Sep 2013

136000 mi

US $47
Coolant expansion tank cracked and began to leak coolant all over. Appeared to be an aged crack due to the plastic just deteriorating over time. Engine bay hood strut failed. Replaced. Car began to run hot in traffic on warm days. Called local repair shop and they recommended using high pressure air to blow out the area between the AC and Engine radiators to ensure proper airflow. Did that, running better now. 
Mar 2014

136000 mi

US $1300
CV joint 
Nov 2014

142000 mi

US $850
Some kind of timing sensor (cam sensor maybe) failed on both sides causing it to run very rough under throttle. Xenon Headlight quit. Horn stopped honking when you lock the doors. I'm told it was because the door sensor on one of the doors quit. 
Audi A6 in Virginia, United States
Aug 2011 - Jun 2016
Sep 2011

127000 mi

US $158
Made appointment with shop to address noise from wheel, check engine light came on before appt. Shop replaced brake pads (no cost from previous brake work), reset check engine and was unable to cause check engine indicator to come back on. Diagnose check engine light, was told needed torque converter and left & right side engine mounts. Local shop and changed transmission fluid, dealer tech said this was unnecessary.  Fog light bulbs replaced, shop said was an elec problem. 
Oct 2011

127800 mi

US $3695
Replaced torque converter for about 60% of dealer's estimate. Replaced left and right engine mounts for about 60% of dealer's estimate. 
Feb 2013

153000 mi

US $2018
1 of 2 catalytic converters replaced, 1 of 4 oxygen sensors replaced to pass emissions inspection. 
Mar 2013

155000 mi

US $1086
Power steering pump failed, replaced. 
May 2013

158700 mi
Replaced CV boot 
Apr 2014

181200 mi

US $499
Transmission output seal leaking fluid, output seal replaced. 
Aug 2014

187000 mi

US $1174
Coolant leaking, replaces secondary water pump and intake gaskets 
Mar 2015

200000 mi

US $812
Car wouldn't start, jump attempted. Towed to shop and bad fuel pump was replaced. 
Audi A6 in Minnesota, United States
Jun 2016 - Mar 2018
Nov 2016

220000 mi

US $2500
Water pump 
Audi A6 in Massachusetts, United States
Jul 2010 - Mar 2011
Aug 2010

122000 mi
Water collected bt. engine and firewall due to plugged drains under battery. In corners water sloshed into pass. side footwell thru cabin filter and saturated transmission module. Unplugged drains, dried out carpet, disconnected, cleaned and dried module. Valve cover gaskets. Unplugged drains under battery, dried out carpet, pulled up carpet, dried up flooring, disconnected, cleaned and dried transmission control module.  
Audi A6 in Pennsylvania, United States
Nov 2014 - May 2018
Jan 2015

109000 mi

US $120
replace timing belt water pump and all components  replace valve cover gaskets, tensioners and cam seals power steering pump failed replaced pump 
Jun 2015

116000 mi

US $270
Replaced failed secondary air injection pump 
Dec 2015

131000 mi

US $75
Replace front shocks 
Apr 2016

137500 mi

US $140
replace control and tie rod ends 
Jun 2016

140000 mi

US $25
replaced thermostat housing 
Audi A6 in Ontario, Canada
Feb 2012 - Apr 2012
Mar 2012

148800 mi

C $450
signal light relay switch. Required air bag removal to access. Replaced 4-way flasher relay while in there. labour = 2.5 hrs. 
Audi A6 in New York, United States
Apr 2012 - Apr 2012
Apr 2012

127000 mi
Brakes going into anti-lock puslation on every stop. Rebuilt anti-lock control module put in. Anti-lock senders cleaned. Repair was not successful. 

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2001 Audi A6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 in Minnesota, United States
Nov 2012 - Sep 2013
Aug 2013

115600 mi

US $200
Replaced expansion tank 
Audi A6 in Mississippi, United States
May 2014 - May 2014
May 2014

132000 mi

US $600
They never fixed it. Still doesn't start or keep running when started. Hopefully I've diagnosed the Neutral Safety Switch as the issue. Hopefully. 
Audi A6 in Pennsylvania, United States
Oct 2011 - Jun 2016
Nov 2012

124000 mi

US $4500
Trans was slipping. Having trans rebuilt. 
Mar 2013

129000 mi

US $550
Timing belt replacement as well as two noisy accessory rollers and belt. Tires and alignment as well with both inner and outer tie rods. Rods were about $550. 
Sep 2014

150000 mi

US $350
Replaced Front ABS speed sensor Replaced Front headlight level sensor 
Jan 2015

159000 mi

US $400
Drivers CV shaft replaced 
Dec 2015

181000 mi

US $1400
Wheel bearing went bad on passenger front. Replaced both bearings. Preventative maintenance replacement of all control arms and bushings since car was apart. Alignment. 
Audi A6 in California, United States
Sep 2011 - Dec 2014
Nov 2011

152800 mi

US $683
Replaced rear differential seal. Replaced right front lower control arm. 
Mar 2012

157000 mi

US $700
The fuel pump was replaced. 
Aug 2012

162000 mi

US $813
Replace upper control arms, both sides. 
Sep 2012

162000 mi

US $264
Bad valve cover gasket. Bad timing chain tensioners. 
Mar 2013

165000 mi

US $780
Torn CV joint boot. Replaced. 
Dec 2014

180000 mi
I didn't replace the bad valve cover gaskeet. Expensive problems were adding up, including airbag warning, front suspension, transmission hick-ups, oil leaks... it was estimated bringing the car up to par would cost $11,000. Airbag warning. Front suspension. 
Audi A6 in Connecticut, United States
Jan 2012 - Apr 2013
Feb 2013

110000 mi

US $200
brake switch to release from park 
Apr 2013

110000 mi

US $200
leak into floors 
Audi A6 in Manitoba, Canada
May 2010 - Jun 2012
Mar 2010

74400 mi

C $9000
removed and replaced transmission....and did timing belt at the same time 
Feb 2011

79360 mi

C $1000
Right rear caliper failed, needed new caliper, two new rotors, (left one replaced as well, to match wear). 
Nov 2011

90520 mi

C $360
door lock latches on front doors, courtesy lights do not operate, each latch is over $400 plus install for total of approx $1,200. 
Audi A6 in Massachusetts, United States
Dec 2004 - Mar 2013
Jun 2004

102390 mi

US $1188
Replaced engine oil cooler seal, change oil 
Oct 2005

91119 mi

US $6650
Oil chg, water pump, pwr strg pump, timing belt, frnt axle boots, tailshaft housing, new tires 
Apr 2006

94063 mi

US $1006
Oxygen sensor, oil change 
Jul 2009

119048 mi

US $950
EVAP canister & c-valve replaced 
Aug 2009

119611 mi

US $1181
AC fan failure, replaced & recharge system 
Dec 2010

132000 mi

US $500
Replaced right front axle $300 Replaced leaking/cracked antifreeze liquid tank $200 
Sep 2011

138000 mi

US $500
Rear hydraulic brake cylinder was leaking brake fluid and needed replacement. 
Dec 2011

141000 mi

US $700
Float for brake fluid malfunction, replaced float, drained & replaced brake fluid. Oil leak caused by non-dealer incompetence. Replaced oil & filter. Leak corrected. CV Boot replacement. CV boots seem to tear & need periodic replacement which cost $300 for each one replaced. They last approx 2 years, depending on environment. 
Mar 2012

144000 mi

US $175
Replaced coil 
Feb 2013

154200 mi

US $5100
3rd gear clutch pack failed. Car not drivable. Towed to dealer. Clutch pack cannot be individually repaired. Transmission replaced with rebuilt tranny, warranty 6 months, parts only. Dealer provided loaner at no charge. 
Audi A6 in Texas, United States
Oct 2009 - Oct 2010
Feb 2010

125000 mi

US $600
Accessory Belt idler pully seized and came off. 
Audi A6 in Colorado, United States
May 2009 - Apr 2014
Sep 2010

109000 mi

US $1
Unusual hesitation and ESP triggering. Pulled codes using VAG-COM and saw that the brake light switch was defective. Replaced it per Bentley instructions and everything is just perfect. 
Feb 2011

117000 mi

US $30
hazard flasher switch failed.  
Aug 2011

123000 mi

US $70
Coolant overflow reservoir was developing cracks and was starting to leak. Replaced the reservoir with a new one and everything is perfect. 
Apr 2012

133000 mi

US $40
Leak from passenger-side inner driver seal. 
Nov 2012

143700 mi

US $90
Replaced all soft brake lines and bled the system. 
Jun 2013

152000 mi

US $250
Replaced fuel pump. Failed pancake valve 
Feb 2014

156900 mi

US $45
Clips on the driver's side window broke preventing the window from going up. 
Mar 2014

159000 mi

US $10
Had the airbag module repaired. Replaced vacuum lines. CEL on. 
Apr 2014

159000 mi
CEL on for vacuum leaks or EGR issues. Gah.... 

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2001 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

Audi A6 in District of Columbia, United States
Apr 2010 - Jun 2014
May 2012

127800 mi

US $500
Replaced upper and lower front control arms 
Oct 2012

132500 mi

US $30
Flex joint in passenger side exhaust rotted out. Welded in new.  Replaced leaking cam plug in right bank rear of cylinder head. 
Sep 2013

142000 mi

US $80
Oil level/temp sensor died and I replaced it. Right rear power window regulator failed and I replaced it 
May 2014

148000 mi

US $350
Water pump was leaking-replaced 
Audi A6 in British Columbia, Canada
Dec 2011 - Mar 2013
Jan 2012

70680 mi

C $1450
New alternator 
Oct 2012

75220 mi

C $1000
Supposedly over-filled tank - led to a complete replacement of the overflow system and resetting of the sensor software. 
Audi A6 in Colorado, United States
Jun 2010 - Jan 2011
Dec 2010

120000 mi

US $65
The cam seals were leaking, I could smell burning oil within the cabin of my car and especially when I was outside of my car after drives. I put in new seals, but the didn't seat properly, now have to retry. 
Audi A6 in New Jersey, United States
Jan 2007 - Jan 2011
Jun 2008

67000 mi

US $390
both front axle outer CV joint boots broken 
Sep 2009

79000 mi

US $502
Rear transmission seal leak Engine breather clogged. 
Jun 2010

91000 mi

US $105
Four way flasher relay assembly failed. 
Audi A6 in Michigan, United States
Apr 2010 - Jul 2010
May 2010

124000 mi

US $525
AUDI ECU Update to newest version for Check Engine light, Audi Dealer said the new ECU had more relaxed parameters and it may keep the CEL off. No such luck. $375. Coolant system flush (no heat), $250. 
Jul 2010

125000 mi

US $2000
Rebuilt transmission. Catalytic converters bad when sold. 

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2001 Audi A6 4-door

turbocharged 6-cylinder manual AWD

Audi A6 in Texas, United States
Apr 2008 - Mar 2012
Mar 2012

140000 mi

US $750
Needed a new alternator 
Audi A6 in Pennsylvania, United States
May 2009 - Jul 2011
Jul 2011

59000 mi

US $655
Vaccum leak. Loss of idle and power brakes. Simple repair 

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2001 Audi A6 4-door

turbocharged 6-cylinder automatic AWD

Audi A6 in Arizona, United States
Jan 2007 - Mar 2010
Jun 2007

70000 mi

US $180
Torn CV Boot 
Audi A6 in Oregon, United States
Jan 2007 - Mar 2010
Sep 2007

80000 mi
Coolant sensor 
Audi A6 in Minnesota, United States
Jan 2007 - Mar 2010
Jun 2008

95000 mi

US $675
ABS Brake sensor. 
Audi A6 in California, United States
Jan 2007 - Mar 2010
Feb 2007

47000 mi
Replaced am antenna amplifier wire. 
Apr 2007

47000 mi

US $3800
coolant tank replacement 
Dec 2007

53000 mi

US $6
Replace broken window guide; driver's side. 
May 2008

56000 mi

US $218
Bad EGT sensor driver's side. 
Audi A6 in Texas, United States
Jun 2009 - Aug 2009
Jul 2009

74000 mi

US $350
O2 sensor 
Audi A6 in California, United States
Apr 2009 - Mar 2010
Jun 2009

69000 mi

US $300
tie rods replaced. cv boots replaced. 3 window tracks replaced. 
Audi A6 in Colorado, United States
Mar 2008 - Jan 2014
Apr 2008

52000 mi

US $3392
Vehicle was taken in for major oil leak, requiring engine repairs, as well as timing belt service and misc. engine repairs. 
Audi A6 in California, United States
Aug 2007 - Mar 2010
Oct 2007

75000 mi

US $1500
Leak in compressor, required replacement . Leak in transmission seal to driveshaft. 

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2001 Audi A6 4-door

8-cylinder automatic AWD

Audi A6 in Maryland, United States
Jan 2007 - Dec 2008
Mar 2007

60000 mi

US $450
Replaced worn CV Boot  Replaced engine oil gasket that was leaking 
Jun 2008

70000 mi

US $500
Computer threw fault codes for Mass Air Flow Sensor and Catalytic converter. Mechanic recommended Mass Air Flow Sensor replacement only, as Catalytic Converter faults can sometimes be caused by Mass Air Flow Sensor. Appx 1wk has since passed w/o faults. 
Audi A6 in Arizona, United States
May 2009 - Mar 2010
Nov 2009

118000 mi

US $510
Transmission Rebuild. New Torque Converter. 
Feb 2010

120000 mi

US $378
New torque converter went out, replaced by shop warranty. Engine mounts replaced. 

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2001 Audi A6 4-door

6-cylinder automatic AWD

Audi A6 in New York, United States
Jan 2007 - Mar 2010
Apr 2007

78000 mi

US $50
Climate control not accurate in heat mode. Temp in the cabin would decrease while the temp setting had to be continuously increased. Thermostat replaced. 
Audi A6 in Georgia, United States
Jul 2008 - Feb 2009
Jan 2009

US $550
Replaced leaky seals. 
Audi A6 in Virginia, United States
Jan 2007 - Jul 2009
May 2007

81000 mi

US $600
Auxiliary (passenger side) fan stopped working: replaced fan and fan control module ABS warning light on: repaired ABS control module 
Jun 2007

82000 mi

US $2
Windshield washer tank leaked and drained dry... 2 grommets at pump mount had dried out and were replaced. 
Jul 2007

83000 mi

US $110
Check Engine Light: Indicated issue with Evap. Control System - no problem found. Indicated secondary issue with Oxygen sensor, checked & monitored in "real time" and no issue found. Reset light, it has not come back on in ~3 weeks since. 
Nov 2007

88000 mi
catastrophic engine failure, cam timing lost, valves broken, pistons damaged, extensive damage still under analysis for extent of repair 
Feb 2008

88000 mi

US $4100
Catastrophic engine failure: "dropped" a valve, resulting in multiple valves breaking, pistons holed, timing belt pulley bolt sheared, cam timing lost, etc. Repair consisted of replacing engine with a rebuilt engine (Long block). 
Mar 2008

88000 mi
"Low Coolant" light came on after engine replacement (100-200 miles). Checked engine, found no leaks at all, assume that all air was not bled from system. Re-bled system, no leaks found, coolant topped off. 
Apr 2008

89000 mi
"Low Coolant" light came on after engine replacement (800 miles). Checked engine, found no leaks at all, bled system. Re-bled system, no leaks found, coolant topped off. Continue to monitor coolant loss so source can be determined. 
Jul 2008

91000 mi

US $470
LF Upper Control Arm/ Ball Joint replaced Hood latch cable broke, hood could not be opened... replaced hood latch Check Engine Light on: fully test system, replace purge valve & retest. 
Jun 2009

102000 mi

US $799
Replaced 2 Oxygen Sensors which were giving Check Engine Light 
Jul 2009

102000 mi

US $1000
Catalytic converter replaced. Flex pipe gave out. Sold car, not willing to keep putting huge $$$ into a car I couldn't rely on and that might not pass emissions inspection next time. Intermittent CELs turned into constant ones and even my trusted expert indep. shop was scratching their head at it. 

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2000 Audi A6

Engine not specified

Audi A6 in New Jersey, United States
Nov 2010 - Dec 2010
Dec 2010

174000 mi

US $400
control arm bushings 
Audi A6 in Quebec, Canada
Feb 2010 - Jun 2011
Mar 2010

130200 mi

C $250
Oxygen sensor replacement 
Audi A6 in West Virginia, United States
May 2011 - Jun 2011
Jun 2011

276000 mi

US $500
compressor stopped working 
Audi A6 in New Jersey, United States
Aug 2008 - Mar 2010
Sep 2008

106000 mi

US $3745
Lost reverse gear with no warning. Required rebuilt ZF Transmission. Problem corrected after $3,745.00 rebuilt ZF Transmission. 
Oct 2008

106000 mi

US $524
Replaced both front axels 

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2000 Audi A6 4dr Wagon

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

Audi A6 in Idaho, United States
Jul 2011 - Aug 2011
Jan 2011

153000 mi

US $500
replaced failed passenger side intake camshaft and 3 lifters, also along with this job valve gasket, camshaft tensioner gasket, cam plugs, half moon plug, timing belt, fan clutch, vacuum line, oil level/temp sender, oil pan gasket replaced 
Aug 2011

163000 mi

US $22
replaced front passenger side inner cv boot due to small rip replaced front passenger side inner cv boot due to small rip 
Audi A6 in Maryland, United States
Feb 2010 - Oct 2011
Apr 2010

90000 mi

US $450
P1423 & P1411 CEL codes. Both dealing with secondary air injection system (SAI). Told dealer that independent shop identified clogged SAI port in head. They reattached a hose and replaced another. CEL one week later - same code. 
Jun 2010

91000 mi

US $600
Same as previous. Dealer has no clue. 
Audi A6 in New York, United States
Jun 2012 - Apr 2019
Aug 2012

84300 mi

US $240
Replace Timing Belt, Water Pump, Tensioners, etc. and replace Cam Chain Tensioner seals and Valve Cover Gaskets. Radiator leaking. Secondary Air Pump Noisy-replaced Replaced all engine vacuum lines as they were very brittle. 
Sep 2012

85000 mi

US $120
Replaced broken rear spring (drivers side). 
Dec 2012

86000 mi

US $15
Replaced torn CV Boot (Drivers side) 
Jul 2013

88200 mi

US $70
Fan clutch always engaged. Replaced with new unit. 
Jan 2014

86800 mi
Oil burning on exhaust again-passenger side. Upper engine seals already replaced, PCV working OK. 
Apr 2014

91200 mi

US $10
Replaced oil fill cap with updated design(has pressure relief valve) to reduce oil leaks. 
Jun 2014

92000 mi

US $240
flush power steering, new spark plugs, new front O2 sensors, new flex joints for exhaust, new center diff. rear seal, replace center and rear diff fluid, new coolant reservoir, repair various rust on exhaust and underbody. 
Aug 2014

92000 mi

US $10
Engine mounts worn and leaking fluid. Noise on transmission shifts. Attempted to change front differential fluid. Found unit almost empty. Fluid leaking from passenger side axle seal. Filled with fluid and ordered new seal. 
Sep 2014

92000 mi

US $130
Replaced failing front passenger side axle seal, refilled front differential, replaced cracking outer CV boot. Replaced lower suspension links on passenger side due to creaking noise. 
Aug 2015

93600 mi

US $40
Replaced axle seal in front differential-drivers side. 
Mar 2016

96000 mi

US $100
Engine running rough after start. CEL came on once. Replaced coil pack. 
Dec 2016

96000 mi

US $50
CEL on. Insufficient Secondary Air Flow both banks. Ongoing problem, will not pass inspection. Rear Drivers side window will not close without help. Replaced regulator and lubed tracks. 
Jan 2017

92800 mi

US $50
Cheap Chinese secondary air pump installed in 2012 failed, causing CEL. Found a rebuild kit for the original one(which I kept). Rebuilt and reinstalled. 
Jun 2017

97000 mi

US $121
Replace ignition switch-no crank condition due to low ‘run’ voltage. Replace rusted exhaust couplers Replace valve cover gaskets due to leaks. Repair hole in exhaust pipe (welded in new section). Replace Drivers side CV Boot. Last one only lasted a few years. Replace Drivers side upper control arms. 
Jul 2017

97000 mi

US $85
Cylinder 2 and 4 misfire. Replaced coil pack again. Last one only lasted 1 year. 
Mar 2018

97000 mi

US $240
New OEM Secondary Air Injection pump installed to clear check engine light. This has been an ongoing problem as I tried to use aftermarket parts-they are junk. 
Apr 2018

97000 mi

US $100
Front rotors had excessive vibration and noise when applied. These Raybestos units were damaged in 1 winter by salt. Replaced with Zimmerman Z-coat rotors and hoping for better. 
May 2018

97000 mi

US $40
Front right pad separating from backing plate due to rust. Replaced both front pad sets. 
Aug 2018

98000 mi
Replaced Passenger side rear Catalytic Converter, Flex Joint, and pipe. Seal weld on converter was gone, and pipe had several holes from winter road salt. Replaced with Walker Calcat unit and fabricated pipe. Passenger side carpet saturated with water. Lifted and dried with dehumidifier. Will repair once source located. 
Sep 2018

98000 mi
Located water leak as plugged AC drain valve. Cleaned same. Repaired Driver side rear Catalytic Converter and pipe by welding. Seal weld on converter was going, and pipe had a hole from winter road salt. Cleaned up rust and painted pipe. Should make it through winter, will replace next year. 
Apr 2019

100000 mi

US $9
Replaced rear brake pads. Friction material starting to separate from backing pad due to corrosion from road salt. Pads also fairly worn. 
Audi A6 in California, United States
Jan 2011 - Jul 2017
Feb 2011

180000 mi

US $372
Seal leaking on rebuilt transmission. Seal replaced. Seal on rebuilt transmission still leaking. Seal replaced again. 
Sep 2011

183000 mi

US $1732
Front suspension bushings and ball joints worn. All suspension control arms and linkages replaced. 
Oct 2011

184000 mi

US $306
Engine running very rough and check engine light came on. Checked the trouble codes with a diagnostic scanner, found misfiring on cylinders 3 and 5. Replaced all of the ignition coils and spark plug wires. 
Feb 2012

186000 mi

US $249
Oil was leaking from the cam chain tensioner gaskets on the engine and dripping onto the exhaust manifold, causing smoke and a burning oil smell to drift into the cabin. Took the car to my mechanic, who replaced the gaskets. 
Mar 2012

187000 mi

US $466
Car was making a growling noise, which I suspected was coming from a wheel bearing. Took car in to my mechanic, who confirmed that the rear left wheel bearing was bad, and then replaced it. 
Dec 2012

196000 mi

US $1500
Alternator went bad. Replaced. Major coolant leak resulting from burst heater hoses. Towed car to shop and had hoses replaced. Coolant still leaking, albeit more slowly. Drove back to shop, and had an o-ring seal replaced under the intake manifold. While at it, also replaced bulging oil hose, brittle breather hose, and had throttle body de-carbonized. 
Jun 2013

201000 mi

US $185
Windshield washer fluid leaking. 
Dec 2013

207000 mi

US $150
Ignition coil failing, causing check engine light and rough running. Interior front passenger door handle not working. A cable on the inside had to be replaced. 
Apr 2014

208300 mi

US $850
Fuel pump died. Replaced fuel pump and fuel filter. 

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2000 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A6 in Illinois, United States
Jan 2011 - Feb 2012
Feb 2011

170000 mi

US $600
Coolant temperature sensor o-ring replaced.  New Axle. 
Feb 2012

192000 mi
Rust spot forming under paint on roof by door frame, but not on it. One small part exposed to the elements. 
Audi A6 in British Columbia, Canada
Jul 2010 - Aug 2014
Apr 2010

74400 mi

C $2000
Steering Rack replaced after leaking and failing 
Aug 2011

83700 mi

C $600
Head gaskets leaking, apparently a common issue 
Apr 2012

89900 mi

C $400
Car was missing, diagnosed as ingition modules, bought used ones for $50 each out of an S4 
Audi A6 in Michigan, United States
Nov 2008 - Jan 2011
Jul 2009

147000 mi

US $300
Strong smell of antifreeze. Pulley squealing. Found leaking water pump. Did complete timing belt change while car was stripped down. 
Audi A6 in New York, United States
Nov 2014 - Mar 2015
Mar 2015

128000 mi

US $230
Drivers side Bilstein's shock blew, spent $100 on new front SenSen shocks and $130 on new springs from eBay. 
Audi A6 in California, United States
Dec 2007 - Jun 2018
Dec 2013

75000 mi

US $1700
Camshaft cover seals were leaking oil. Had the seals replaced plus timing belt, water pump, timing belt tensioners. 

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2000 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

Audi A6 in Washington, United States
Aug 2012 - Mar 2014
Jan 2013

US $300
Engine Temperature Sensor 
Audi A6 in Washington, United States
Oct 2010 - May 2012
Aug 2011

148000 mi

US $560
Auxiliary water pump failed. Had to get a new one. Now main water pump broke. New one put in. 
Dec 2011

154000 mi

US $500
replace alternator and battery 
Audi A6 in New York, United States
Mar 2010 - Sep 2010
Sep 2010

199000 mi

US $250
Just needed new spark plugs. Originally thought coils were bad because of mis-fire codes on 2 cylinders. 
Audi A6 in Wisconsin, United States
Jan 2012 - Feb 2012
Feb 2012

141000 mi

US $300
power windows, door locks, turn signals, sunroof, and interior lights are all inoperative. Also, the DLC is not communicating with computer when I scan it. 
Audi A6 in Massachusetts, United States
May 2008 - Mar 2014
Jun 2008

90000 mi

US $350
ABS Controller failed - installed rebuilt controller 
Nov 2008

103000 mi

US $200
Worn upper control arms -right front 
Jan 2009

106000 mi

US $1100
Replaced all front control arms and also replaced shocks (front and rear). 
Jun 2009

117000 mi

US $33
Replaced upper front shock mount -driver's side 
Sep 2009

124000 mi

US $300
Replaced cracked brake lines Replaced transmission fluid and filter Replaced leaking differential seals 
Sep 2010

150000 mi

US $60
Driver's door lock module replaced. 
Oct 2010

152000 mi

US $18
Driver's side Outer CV boot was torn - replaced with new boot, relubed CV joint in process. 
Sep 2011

178000 mi

US $600
Car taken for alignment but needed frozen tie rods replaced. 
Dec 2011

183000 mi

US $20
Replaced cam adjuster seals as they were leaking oil. 
Aug 2012

189000 mi

US $150
Alternator charge was low (less than 12 volts). Replaced alternator with remanufactured unit. 
Sep 2013

197000 mi
Repaired exhaust system hangers. 
Jan 2014

197000 mi

US $20
Replaced front CV boot (driver's side). Repacked CV joint. 
Audi A6 in District of Columbia, United States
Sep 2007 - Sep 2014
Oct 2007

75000 mi

US $750
There is a recurrence of a leak in the cooling system evidenced by dry expansion tank. Had to find leak--in seals of pump replaced 18 months ago--and replace aging hoses. 
May 2008

83000 mi

US $2750
Had leaking water pump and leaking oil cooler replaced - ended up going to the timing belt replacement while I was there - added to current cost, but was going to do it in 6 months anyway. 
Oct 2008

89000 mi

US $1400
Leak developed due to degradation of seals around turbo - that's what I was told. Leak was not severe, empty coolant tank resulted from 3 months of driving.  Had to replace right side tie rod ends and upper control arm.  
Nov 2008

89000 mi

US $900
Lower control bar and upper A-arm on right side had worn joints leading to slack in the system, vibration at speed, and noise in low speed turns 
Sep 2009

98000 mi

US $300
Had a noise in the front suspension that sounded like things rubbing together that should not be. Had all links checked and lubed key areas. Suspect that noise was from sway bar friction. 
Jan 2010

104000 mi

US $1280
Leaking valve cover gasket - replaced both sides. Leak around thermostat. Much labor required to access this part of engine. 
Oct 2010

113000 mi

US $1000
Car had an intermittent failure of the ABS control unit. Brake warnng light came on a brake pedal would sink to floor as ABS unit released pressure. Not a good thing. Tuning car off would recalibrate ABS and car could be driven.  
Mar 2011

117000 mi

US $650
Exhaust gas temp sensor went bad, tripped OBD and had to be replaced. 
Jun 2011

121000 mi

US $1500
Aux water pump replaced for 2nd time. Also 2 leaking hoses replaced. 
May 2013

145000 mi

US $1500
Had a complete replacement of all control arms, left and right. Been doing piecemeal for several years and got tired of that method, hence the movement to replace control arms and tie rod ends. 
Jul 2013

146200 mi

US $380
Replaced cracked air intake bellows and related pieces. 
Nov 2013

148100 mi

US $1400
Engine blew main crankshaft seal 
Audi A6 in Missouri, United States
Dec 2012 - Jun 2013
May 2013

114000 mi

US $300
Control arm and ball joint failure Turn signal relay failed and turn signal stalk developed short. Both had to be completely replaced 
Jun 2013

114000 mi
Major Automatic CVT Tranmission Failure. Gears slipping or completely not available, clutch starting to burn up when driving 

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2000 Audi A6 4dr Sedan

300-horsepower 4.2L V8 5-speed shiftable automatic AWD

Audi A6 in Massachusetts, United States
Apr 2010 - Jun 2018
May 2010

135000 mi
Evap-Purge Valve Failure Temp Sender & Sensor Failure Front Crankshaft Seal failed. Replaced Timing Belt & Waterpump 
Dec 2010

140000 mi
Oil Leak 
Apr 2011

143000 mi

US $100
Oil Cooler Leak Brake Line Ruptured CV BOOT KIT NEEDED 
May 2011

144200 mi

US $150
RF Axle replaced RF Control arm (upper / forward) needed.  
Aug 2011

150000 mi

US $150
Upper Control Arm 
Sep 2011

150000 mi

US $110
Exhaust Flex-pipes again! - last replaced a year ago! Door lock failure - next. Using fob for now. 
Oct 2012

155300 mi
New Starter (BOSCH REBUILT) Fan Clutch (Overheat warning) 
Dec 2012

157000 mi

US $300
Replaces Flex pipes in exhaust - again - they seem to last between one and two years. 
Apr 2013

160200 mi

US $500
Overheating condition - Required running heat at full stop. Coolant Pressure test detected 2 year old water pump was leaking. Replaced water pump again, along with thermostat, timing belt and tensioner. 
Jul 2013

161200 mi
System re-bled, coolant & radiator core retested. Result - head-gasket = OK. Another shop suggested it is a head gasket problem. Another shop suggested they should look for a slight leak... 
Oct 2013

162000 mi
Exhaust Flex pipes previously installed had failed welds needed to be redone. 
Mar 2014

163000 mi

US $150
LF Axle replaces - Boot had failed. 
Dec 2014

166000 mi

US $100
Wiper-arm re-calibration 
Audi A6 in Kansas, United States
Aug 2008 - Sep 2011
Nov 2010

147000 mi

US $300
AC Blower and resistor failed and replaced 
Audi A6 in California, United States
May 2013 - Jan 2014
Dec 2013

167000 mi

US $2200
Replaced catalytic converter 
Audi A6 in Illinois, United States
Feb 2010 - Jul 2013
Nov 2011

184000 mi

US $1000
Front driver and passenger side upper and lower control arms replaced. 
Apr 2012

194000 mi

US $3000
Coolant leak on the passenger side of engine. Replaced water pump, timing belt, etc. Coolant leak was result of failed (plastic) fitting. Check engine light. Diagnosis showed that the driver's side catalytic converter needed to be replaced. 
Apr 2013

210000 mi

US $800
Replaced driveshaft. 
Jul 2013

217000 mi

US $180
Received ABS / Brake warning light. ABS module faulty. Removed it and sent to Module Masters for rebuild. Re-installed rebuilt module and ABS / Brake light reset. 
Audi A6 in Arizona, United States
Oct 2010 - Jun 2011
Nov 2010

108000 mi
MECHANIC TOLD ME HE HADNT HAD TIME TO DIAGNOS PROBLEM. TRANS SLIPPING CLD BE SOLENOID OR TRANS ITSELF. MORE THAN 30 DAYS TOLD ME IT WAS GOING TO BE 4000 TO FIX, AND FILED ABANDONED VEHICLE.NOW OWNS MY AUDI. I NEVER AUTHORIZED ANY REPAIRS! 
Audi A6 in Illinois, United States
Sep 2007 - Mar 2015
Oct 2007

69000 mi

US $366
Surging issues on cold starts but no CEL. Problem was solved by cleaning out the throttle body. No new parts.*** leaking transmission pan gasket - replace 
Oct 2008

80000 mi
Leaking transmission shaft seal replaced 
Dec 2008

82000 mi

US $68
Replaced faulty flasher unit. 
Sep 2011

106000 mi

US $1265
Crack in oil cooler causing coolant to leak: problem repaired by replacing oil cooler 
Jul 2012

113500 mi

US $300
Faulty evap purge valve causing CEL. Replace valve. 
Nov 2012

116900 mi

US $120
Replaced faulty ride height sensor related to headlight auto-leveling function. 
Sep 2013

122000 mi

US $190
repair torn CV boot 
Feb 2015

135000 mi

US $700
Replaced valve cover gaskets 
Mar 2015

135000 mi
Lost 1st gear and transmission went into and stayed in limp mode. See ya later alligator. It was a great car but after 15 years it was time to let her go. Sob. 
Audi A6 in Missouri, United States
Jan 2011 - Dec 2012
Feb 2011

104000 mi

US $276
Crankcase vent valve bad-replaced, reset Check Engine Light. Replaced Mass Air Flow Sensor, Installed new Brake pads 
Apr 2012

126000 mi

US $86
two upper control arms, and a four wheel alignment 
Dec 2012

137000 mi

US $61
Coolant pipe from engine to Oil Cooler began to leak 
Audi A6 in Alberta, Canada
Aug 2011 - Sep 2012
Sep 2011

66960 mi

C $350
oil cooler seal leak 
Jun 2012

81840 mi

C $1160
ABS SENSOR FAIL AND REPLACE ROTORS AND PADS 
Sep 2012

84320 mi

C $525
Brake line burst 
Audi A6 in South Carolina, United States
May 2015 - Dec 2015
Dec 2015

132000 mi
Oil pump died, caused camshaft to seize, destroying valves and pistons 
Audi A6 in North Carolina, United States
Dec 2013 - Jan 2014
Dec 2013

89000 mi

US $2200
replaced all tie-rod ends oil leaks 
Audi A6 in New Jersey, United States
May 2011 - Mar 2016
Jun 2011

7800 mi

US $800
Changed front upper/lower control arm, tie rod end, with Meyle HD control arm kit. 
Aug 2015

120900 mi
Replacing front shocks and mounts 

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2000 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed shiftable automatic FWD

Audi A6 in Hawaii, United States
Sep 2010 - Jun 2011
Apr 2010

120000 mi

US $3600
Trasmission repair 
May 2010

14000 mi

US $1500
Front right side axle 
Jul 2010

150000 mi

US $700
Driver Window wont go up 
Oct 2010

150000 mi

US $2300
Alternator Steering Alternator plus steering  
Audi A6 in Arizona, United States
Jan 2011 - Feb 2014
Mar 2011

144000 mi

US $570
Clicking noise from front left wheel led to right cv joint breaking. Replaced both front axles. 
Jun 2011

157000 mi

US $150
Plastic T from coolant expansion line -reservoir split lost most of coolant, replaced T, coolant system flush , new coolant. 
Jul 2011

160000 mi

US $258
3 engine mounts failed, replaced them. one tie rod end broke, replaced both Low brake pad warning light; rear right caliper had to be replaced, new rear pads and 1qt DOT 4 brake fluid 
Aug 2011

165000 mi
check engine light. code is for emissions leak, car has occasional poor idle / stalls, hesitates on heavy acceleration 
Dec 2011

179000 mi

US $685
cracked radiator 
Jun 2013

207000 mi

US $86
oil pan cracked cv boots and serpentine belt 
Feb 2014

212000 mi
cv boots, ripped after 2 yrs, 
Audi A6 in Florida, United States
Jan 2010 - Jun 2011
Mar 2010

119000 mi

US $3000
Transmission began slipping and eventually failed completely, requiring a complete rebuild. I was considering trading in the car for a new vehicle, but because of all of the investments I have already made in the car, I've repaired it. 
Sep 2010

123000 mi
Electrical problems. 
Nov 2010

125000 mi

US $2500
The car is in the shop everyother month. It was multiple issues this time: water leaks into cabin,  suspension rattles/sloppy feel, control arms,  CV boot,  radiator hose replaced,  battery exploded, electrical problems... all in 2 months! :( 

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2000 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

Audi A6 in Michigan, United States
Aug 2011 - Jun 2013
Jun 2013

186000 mi

US $800
Camshaft bearing seal failing. Oil saturation of the timing belt required its replacement also. Felt that as long as that was being done might as well replace the water pump. 
Audi A6 in Alberta, Canada
Mar 2009 - May 2010
Oct 2009

75320 mi

C $300
Oxygen sensor. 
Jan 2010

77280 mi

C $300
Leaking windshield washer fluid tank. 
Feb 2010

77580 mi

C $300
Leaking coolant hose. 
May 2010

79360 mi
Sold with front passenger side rattle and sqeak that's not noticeable when car is cold but gets loud after car warms up, about 30 minutes. 
Audi A6 in Michigan, United States
Nov 2011 - Dec 2011
Dec 2011

138000 mi

US $100
Fuel pump supply nozzle made of plastic. It broke due to some stress, smelled fuel. Attempted to remove fuel tank, however due to rear axle having to be removed for tank to be removed, gave up and glued the plastic nozzle back on and it's OK 
Audi A6 in Ohio, United States
Jun 2011 - Jun 2012
Mar 2011

78000 mi

US $280
replaced all front control arms and steering tie rods. 
Sep 2011

75000 mi

US $23
took car into audi dealer - wanted to replace all engine seals - $1600. searched web and found PCV valve was defective causing pressure on top of engine causing leak. replaced PCV myself, problem fixed. 
Audi A6 in Washington, United States
Sep 2007 - Aug 2014
Sep 2008

96000 mi

US $35
Coolant temp sensor. 
Mar 2009

99000 mi

US $25
Torn CV boot. 
Jan 2011

110700 mi

US $200
Pixelated center LCD display. Replaced with a new display. 
Mar 2013

121000 mi
rear calipers replace 
Dec 2013

127000 mi

US $100
Coolant expansion tank cracked 
Feb 2014

127000 mi

US $20
Torn driver's side CV booth, first replaced around 60k miles, second one installed at 124k miles. 
Mar 2014

128000 mi

US $65
Sway bar links, replaced both, both were factory original. 
Jun 2014

130000 mi
Upper control arms, original ones replaced 
Audi A6 in California, United States
Sep 2007 - Nov 2010
Jul 2008

121000 mi

US $186
Coolant recovery tank leaks, requiring frequent top off of coolant; if low, will trigger warning light for temperature. Was replaced with new tank. 
Sep 2008

121000 mi
Seat belt locked up after back seat folded down. Ordered replacement belt but was the wrong one.  
Nov 2008

124000 mi

US $494
Completed replacement of center rear seat belt after parts arrived in shop.  
Jan 2010

136000 mi
Coolant recovery tank leaked fluid, frequently causing low coolant warning light to go on. Replaced new coolant recovery tank.  Tie rods and control arms faulty, causes car to pull to one side. Replaced.  
Feb 2010

136500 mi
Experienced constant coolant leakage, have to top off coolant every other day. Shop found faulty or missing O-ring by coolant level sensor and replaced at no charge (goodwill due to long and good relations).  
Mar 2010

136839 mi

US $461
Replaced air pump to fix CEL light status. However, CEL still pursists 
May 2010

137213 mi

US $90
Determined catalytic converter the cause of check engine light. Took a week to diagnose. Waiting for part to arrive. Rapid rise in engine temperature on gauge and warning light flashes on. Resolved by replacing faulty coolant temperature sensor. Catalytic converter ordered, found out it did not fit. Got car returned. changed water temperature sensor 
Jun 2010

139000 mi
Replaced catalytic converter but check engine light came on again less than hour leaving shop. Car overheated. Replaced water pump; at same time, also replaced timing belt. 
Aug 2010

139300 mi

US $1492
After extensive diagnosis, found that ECU had to be replaced. Then O2 sensors went bad; these were replaced under warranty since they were replaced in Dec. 2009.  
Oct 2010

141000 mi

US $95
replaced stereo head unit - ordered from parts supplier, mechanic installed free labor intermittant turn signal function - replaced new bulb holder on driver's side. 
Audi A6 in British Columbia, Canada
Jun 2011 - Jun 2012
Aug 2011

69800 mi

C $1500
Emissions: Replace left side catalytic converter Replace timing belt etc 

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2000 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed manual AWD

Audi A6 in Minnesota, United States
Jan 2010 - Jul 2018
Dec 2014

216000 mi

US $1500
replaced worn ball joints and upper/lower control arms on the front end 
Mar 2015

218000 mi

US $1860
head and valve gaskets 

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2000 Audi A6 4-door

turbocharged 6-cylinder automatic AWD

Audi A6 in District of Columbia, United States
Sep 2007 - Mar 2010
Jan 2008

88000 mi

US $620
Car smoking heavily from tailpipes on startup; engine misfiring, required tuneup and other engine tweaks. 
May 2008

88000 mi

US $3500
Engine had fuel injection problems. Front suspension boots needed to be replaced. 
Audi A6 in Illinois, United States
Jan 2009 - Mar 2010
Jul 2009

114000 mi

US $700
Air pump failed causing vehicle to overheat. 
Audi A6 in Colorado, United States
Dec 2008 - Mar 2010
Jan 2009

156000 mi

US $2100
Timing belt and all associated accesories replaced, new secondary air injection pump installed, egt sensor replaced (under warranty, it failed due to secondary air injection pump failure), spark plugs replaced. Car was towed due to engine flooding. 

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2000 Audi A6 4-door

8-cylinder automatic AWD

Audi A6 in Alberta, Canada
Aug 2009 - Oct 2010
Oct 2010 The vehicle started leaking oil from the head gasket, check engine light (misfire) indicated a problem with the valves not seating properly, loss of compression in two cylinders. Total estimated cost for this and other problems $12,000. Traded car. the transmission fluid was changed earlier in an attempt to resolve the jerky downshift-- as the vehicle slowed to a stop. This did not resolve the problem, suggesting that it was something more major. Needed new airbag module. Needed new ABS module. 

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2000 Audi A6 4-door

6-cylinder automatic AWD

Audi A6 in Washington, United States
Feb 2009 - Mar 2010
May 2009

125000 mi

US $190
Both tie rod ends were bad. Replaced them myself and took to a shop for an alignment. 
Audi A6 in Illinois, United States
Aug 2009 - May 2011
Dec 2009

87000 mi

US $1800
Timing belt, water pump 
Oct 2010

93500 mi
CV boot let go and both CV joints were replaced. 
May 2011

98000 mi
When traded...O2 sensor malfunctioning despite all 4 sensors changed in 80K miles leading to appalling gas milage (10 in town, 18 highway) 2.8L engine slowly burning oil dashboard LCD completely fading, driver’s side window actuator malfunctioned, rear passenger window childlock malfunctioned (rear passenger controls doesn’t work, driver controls work), Auto dimming mirror leaking fluid.  

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2000 Audi A6 4-door

4-cylinder automatic AWD

Audi A6 in Massachusetts, United States
Jan 2009 - Mar 2009
Feb 2009

72000 mi

US $600
ABS warning light was on - needed to replace ABS sensor. Check engine light on - sensor that controls spark plugs replaced. 

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1999.5 Audi A6 / S6

Engine not specified

Audi in Colorado, United States
Dec 2011 - Aug 2013
Feb 2012

155000 mi

US $350
Fuel pump cracked and needed to be replaced. Front right axle was replaced due to excessive wear. 

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1999 Audi A6 / S6

Engine not specified

Audi in California, United States
Dec 2009 - Jan 2011
May 2010

122700 mi

US $400
Driver side drive axle. 
Audi in Texas, United States
Dec 2010 - Aug 2011
Jan 2011

149000 mi

US $200
Headlight washer pump failed. Grommets leaking.  Interior door grab handle broke. 
Feb 2011

150000 mi

US $100
Rear wiper nozzle corroded. Had to order an expensive repair kit from the dealer. Design flaw, causes failure to clean rear window and decreases visibility dramatically. 
Apr 2011

150000 mi

US $25
Rear differential seal was leaking. Had to remove rear axle to access differential. Replaced seal. Still possibly need an alignment $$ due to loosening of suspension components. 
Jun 2011

151000 mi

US $5
Hose to rear window wiper failed at the hinge and was letting fluid into the car. Found a suitable replacement part at a home improvement store. So far so good. 
Jul 2011

151000 mi

US $100
Replaced coolant overflow tank because the old one had a crack that a previous owner tried to glue back together. 
Aug 2011

151000 mi

US $15
This car's rubber braided hoses have all failed. I replaced all that I could get access to.  A check engine light indicated knock sensor issues and Secondary Air Intake insufficient flow. Could not find the cause of the problem in time before someone purchased the car from me. 
Audi in Massachusetts, United States
Sep 2012 - Nov 2013
Apr 2013

222500 mi
Low Oil Pressure lamp came on. Engine began to clatter. Shut off and towed to shop. Maybe bad oil pump. Have not decide to whether to make repair or not. May just try removing oil pan and cleaning oil pick-up. Engine may be sludged up. 
Jun 2013

225000 mi

US $200
Engine misfires badly. Replaced plugs and wires. Runs much more smoothly. Discovered leaking valve cover gasket. Did not fix. Car too old.  
Nov 2013

227000 mi
The motor slowly ran rougher again then it sprung a leak in the brake line. Scrapped vehicle with 235,000 miles. Engine running roughly. Valve cover gasket leaking. Leaky and loud exhaust noise. Front end noise that sounded bad. Rattles. 
Audi in Colorado, United States
Nov 2012 - Dec 2012
Dec 2012

187000 mi

US $3100
Ball joints and tie rod end were worn out and need replacing 
Audi in Pennsylvania, United States
Sep 2014 - Dec 2014
Nov 2014

165000 mi

US $1250
Replaced 2 coil packs on cylinders 3 and 4 for consistent misfiring issues. 
Audi in New Hampshire, United States
Feb 2013 - Mar 2014
Jun 2013

133000 mi

US $185
New plugs installed. After a timing belt service, they never checked the plugs so it was misfiring soon after, so now its fixed.  There is a abs light, which I think is a loose wire, but im not fixing that. 
Nov 2013

142400 mi

US $400
A pulley seized and snapped the main belt and I lost power steering. 
Jan 2014

146800 mi

US $330
The driver side front axle needed to be replaced. The back latch will not shut on the wagon. 

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1999 Audi A6 / S6 4-door

6-cylinder automatic AWD

Audi in Ohio, United States
Sep 2009 - Mar 2010
Oct 2009

81000 mi

US $150
Replace front lower rear CA Replaced both rear Brake Calipers, passenger rear was leaking fluid around piston seal Replaced tie rod end on Passenger side 
Jan 2010

91000 mi

US $36
The car would not start. Diagnosed (audi forum) the problem to be the Engine coolant temp sensor. Replaced the sensor. added fluid to replace fluid lost during work. 
Audi in New York, United States
May 2009 - Nov 2010
Mar 2010

161000 mi

US $1400
Repair ball joint and CC joint boots.  Repair front right blinker socket. 
Audi in Texas, United States
May 2009 - Jun 2011
Jun 2009

111000 mi

US $190
A/C needed recharge and a A/C related filter replaced 
Sep 2010

116000 mi

US $475
repaired rear main seal on transmission 
Audi in Colorado, United States
Oct 2009 - May 2012
Nov 2009

125000 mi

US $110
Wiring harness under driver's seat wore and caused windows, sunroof, power seats to fail. Dealer figured it out quickly and repair was cheap... 
May 2012

142000 mi

US $400
Cylinder 6 was not always firing... Had a new wiring harness put in... runs well now. Passenger side control arms were replaced... 
Audi in Pennsylvania, United States
Jun 2009 - Jun 2011
Mar 2010

180000 mi

US $800
Front suspension joints worn on passenger side, some wear on driver side. Repair: Front suspension arms replaced. 
Jun 2010

184000 mi

US $1500
Oil leak. Replaced seals and flange at front of engine 
Audi in Ontario, Canada
May 2009 - Sep 2010
Oct 2009

63240 mi
Bulb replaced. Took about ten minutes. 
Audi in Colorado, United States
May 2009 - Oct 2010
Jun 2009

78000 mi

US $381
Replaced a leaking passengers side engine mount. The mount replaced was new in April of 2009. Parts supplier warranty'd, I paid shipping. While replacing the engine mount again, I noticed the waterpump was leaking - coolant down the front & onto oil pan. Replacing the waterpump forced the full timing belt job, which the car was due for anyway. 
Jul 2009

78000 mi

US $300
drivers side seal on power steering rack began leaking considerably right after waterpump/timing belt job last month. Replaced steering rack with rebuilt unit. 
Dec 2009

81000 mi

US $52
Pass. front door would not latch closed in temp's below freezing. The microswitch was also broken. Attempted to remove & clean/lube but the offending mechanism is inaccessible-unsuccessful. Replaced latch with used unit from '04 model A6. replaced rear hatch lift struts 
Jan 2010

81000 mi

US $46
Front/Rear window squirter pump began leaking. Replaced pump & grommet. 
Aug 2010

85300 mi
trans.fluid/filter change - preventative. also changed engine oil, discovered & repaired a leaking power steering hose Sunroof switch disassembled & cleaned. Roof would sometimes not close and most recently opened on it's own. Also, repaired cruise control module - re-soldered connections C7, C9, C11 on module circuit board. 
Audi in Connecticut, United States
May 2009 - Sep 2011
Sep 2011

107000 mi
Car bit the dust in recent rainstorm after rainwater somehow got into the floor behind the driver's seat. Car starts right up, but the already lousy electrical system is even more messed up. No remote locks. Power windows inoperable. Car is being junked. 
Audi in Connecticut, United States
Jun 2017 - Jun 2018
Feb 2017

165000 mi

US $303
Engine started running rough while driving at speed. Loss of compression no. 5 cylinder = Replaced broken intake valve spring. 
Aug 2017

167000 mi

US $160
Abnormal tire wear,left side. Replaced entire front suspension and outer tie rod ends, lt. frt. wheel bearing,excluding struts. 
Mar 2018

171000 mi

US $450
Replaced transmission 
Audi in Michigan, United States
Oct 2009 - Jun 2011
Nov 2009

146000 mi

US $300
Cam chain tensioner oil seals leaking. Smoke entering passenger cabin.  Valve cover gasket leaking oil. Smoke entering passenger cabin. Central Locking System shorting and blowing fuse. Ashtray LED was melted and causing short. 
Nov 2010

164000 mi

US $100
Flex pipe before CAT broken at bellows. Engine coolant temp sensor bad and replaced. 
Audi in California, United States
Sep 2010 - Oct 2011
Oct 2010

107000 mi

US $120
ABS Module Failed. Had it repaired. 
Nov 2010

108000 mi

US $80
Noise from stationary steering. Both outer Tie Rod End replaced. 
Audi in Ohio, United States
Jul 2017 - Jul 2018
May 2018

119502 mi

US $504
Replace Front Rotors and Calipers 
Audi in North Carolina, United States
Dec 2009 - Apr 2011
Jan 2010

154000 mi

US $100
150k service items: Air filter, fuel filter, selected vacuum lines, spark plugs. Noticed valve cover gaskets need to be replaced (not urgent) 
Nov 2010

162000 mi

US $800
Engine mounts, all three. 
Audi in Minnesota, United States
Nov 2009 - Mar 2010
Dec 2009

157000 mi

US $3500
Timing belt tensioner broke and caused bent valves, etc. Replaced engine. Cause was previous owner not replacing tensioner during first/previous timing belt change. 

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1999 Audi A6 / S6 4-door

4-cylinder automatic AWD

Audi in Wisconsin, United States
May 2011 - Apr 2012
Oct 2011

129000 mi

US $2000
Replaced tie rods. Replaced cv boots. 

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1999 Audi A6 / S6 4-door

4-cylinder automatic 2WD

Audi in Nevada, United States
Dec 2010 - May 2013
Nov 2011

131000 mi

US $450
driver side window wouldnt go back up 
Dec 2011

131000 mi

US $400
window would no longer go up or down 
Nov 2012

139400 mi

US $1100
gaskets, some wiring, cant even remember it all number of things 
May 2013

149000 mi
Needed everything shocks to struts 

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1998 Audi A6 / S6

Engine not specified

Audi in Georgia, United States
Dec 2011 - Oct 2012
Mar 2012

194000 mi

US $900
A series of spots on roof and trunk where paint failed. 
Audi in Massachusetts, United States
Dec 2012 - Apr 2013
Jan 2013

125800 mi

US $300
Broken front lower control arm replaced front axle broke as a result of broken front control arm 
Apr 2013

130000 mi

US $100
Replaced clogged crankase breather hoses - PCV valve - and suction valve. 
Audi in Alaska, United States
Feb 2013 - Mar 2013
Mar 2013

89000 mi

US $500
upper control arms replaced. the arms were not engineered correctly as oem. 

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1998 Audi A6 / S6 4-door

6-cylinder automatic AWD

Audi in Hong Kong, China
Aug 2011 - May 2013
Oct 2012

82760 mi

$950
Cam belt, water pump, steering pump replaced. Wheel bearings replaced. CV joints replaced. 
Audi in Washington, United States
Jun 2009 - Aug 2010
Jul 2009

202000 mi
Ignition switch was broken. Plastic portion of switch was broken. ABS brake module light came on. Sent to shop for rebuild. Airbag light was on. Discovered connector was unplugged when removing steering wheel to fix broken ignition. 
Oct 2009

204000 mi

US $20
Pixels in Dashboard display not working properly. 
Mar 2010

208000 mi

US $55
Instrument panel sent to repair shop for pixel display repair. Re-installed after instrument panel repaired. Passenger side window would not go up. Dismantled door amd replaced window guides. I noticed that window cables had come off pulleys. Re-aligned cable and installed new cable guides. 
Audi in New Jersey, United States
Dec 2010 - Jan 2011
Jan 2011 Would not start more than 75 percent of attempts. Among parts replaced in attempt to fix: ECU, many sensors and relays, ignition switch, coil pack, upper wiring harness. 
Audi in California, United States
Dec 2010 - May 2013
Jan 2011

143000 mi

US $1000
thermostat frozen shut, car overheated. r/r timing belt, water pump, thermostat, tensioner, etc 
May 2011

147300 mi

US $3400
Torque converter lost seal and all transmission fluid. Replaced with used transmission. 
Aug 2012

152200 mi

US $1000
New drive shaft. Replace radiator hoses. Replace PCV tubing. Tighten loose front calipers. 

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Audi A6 / S6 Repair Histories

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