2011 Audi A6 / S6 Audi A6 / S6 2011

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2011 Audi A6 / S6 repairs by problem area

Engine (20%)

Transmission and Drivetrain (0%)

Brakes and Traction Control (0%)

Suspension and Steering (20%)

Electrical and Air Conditioning (30%)

Paint, Rust, Leaks, Rattles, and Trim (30%)

Other (0%)

Select a problem area

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Chart based on 10 repairs.
See TSBs and recalls for the 2011 Audi A6 / S6.

2011 Audi A6 / S6 repair cost distribution

$2500+ (0%)

$1000 - $2499 (0%)

$500 - $999 (17%)

$100 - $499 (17%)

< $100 (67%)

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Chart based on 6 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

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 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 
Audi A6 / S6 in Georgia, United States
- Feb 2015
Feb 2015

38000 mi

US $389
Thermostat and coolant hose failed/broke. Replaced under warranty. 

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2010 Audi A6 / S6 4dr Wagon

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

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 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 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 New York, United States
Mar 2016 - Jun 2016
May 2016

67100 mi

US $4800
Cam tensioner broke 
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 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 Illinois, United States
May 2014 - Mar 2018
Apr 2015

50500 mi

US $500
Replaced battery 
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 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 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 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 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
- 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 

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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 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 
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 

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2008 Audi A6 / S6 4dr Sedan

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

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. 
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. 

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2008 Audi A6 / S6 4dr Sedan

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

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 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 New Jersey, United States
Jul 2010 - Jan 2011
Dec 2010

41000 mi
MMI computer replaced 
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 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 Maine, United States
Mar 2010 - Mar 2012
Apr 2010

17000 mi
Malfunctioning front brake caliper Caliper 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 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. 
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 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 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 Wisconsin, United States
Oct 2014 - Dec 2018
Jul 2017

102000 mi

US $30
Replaced a/c high pressure sensor. 
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 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 Maryland, United States
Sep 2012 - Mar 2013
Mar 2013

73000 mi

US $85
valves needed flushing 

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2007 Audi A6 / S6

Engine not specified

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

24000 mi
Headlight malfunction - fixed under warranty 

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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 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 Washington, United States
Apr 2013 - Dec 2015
Aug 2015

95000 mi

US $300
battery was overdue for replacement. 
Audi A6 / S6 in California, United States
Feb 2013 - Oct 2015
Jan 2014

100700 mi

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 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 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 
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 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 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 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 

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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 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 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 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 New York, United States
Sep 2011 - Apr 2012
Nov 2011

43700 mi
Fuel gauge worked sporadically 
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 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 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 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 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 
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 

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2007 Audi A6 / S6 4dr Sedan

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

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 
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 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. 

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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 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 Nevada, United States
Jan 2011 - Mar 2012
Jan 2012

86000 mi
Sunroof shade 
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 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 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 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 Pennsylvania, United States
Nov 2015 - Jun 2016
Jun 2016

58000 mi

US $1400
Adaptive headlight failure. 
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 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. 
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 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 British Columbia, Canada
Nov 2011 - Dec 2011
Dec 2011

62000 mi

C $211
Left hand light error, LHS marker light had a intermittent failure. 

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2006 Audi A6 / S6

Engine not specified

Audi A6 / S6 in Washington, United States
Nov 2014 - Sep 2015
Sep 2015

67000 mi

US $400
Replaced heater valve. 
Audi A6 / S6 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 / S6 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 / S6 4dr Wagon

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

Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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. 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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. 

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2006 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 in Indiana, United States
Jul 2015 - Aug 2015
Aug 2015

156000 mi

US $100
Car was misfiring, one of my coils was replaced. 
Audi A6 / S6 in California, United States
Feb 2015 - Dec 2015
Apr 2015

112000 mi

US $400
Battery needed replacement 

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2006 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 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 / S6 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 / S6 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 / S6 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. 
Audi A6 / S6 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. 

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2006 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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. 
Audi A6 / S6 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

59000 mi
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 / S6 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 / S6 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 / S6 in Washington, United States
May 2015 - Mar 2018
Sep 2016

62000 mi

US $800
Tire sensor malfunction due to low batteries 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 in California, United States
Sep 2008 - Apr 2012
Jun 2009

28000 mi
 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 in Michigan, United States
Nov 2011 - Sep 2017
Jun 2013

46000 mi

US $200
Tire pressure monitoring system - battery failure 
Audi A6 / S6 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 / S6 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 

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2006 Audi A6 / S6 4-door

turbocharged 4-cylinder diesel CVT 2WD

Audi A6 / S6 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 / S6

Engine not specified

Audi A6 / S6 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. 
Audi A6 / S6 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 / S6 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. 

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2005 Audi A6 / S6 4dr Wagon

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

Audi A6 / S6 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 / S6 4dr Sedan

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

Audi A6 / S6 in Ohio, United States
Apr 2015 - Dec 2015
Jul 2015

60200 mi

US $500
Replaced headlight due to faulty motor 
Audi A6 / S6 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 / S6 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 / S6 in Sweden
Apr 2013 - May 2013
May 2013

111600 mi

$150
Ignition box failure cylinder 3 
Audi A6 / S6 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 / S6 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. 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 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 / S6 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 / S6 in New Jersey, United States
Dec 2011 - Sep 2013
Sep 2013

68000 mi

US $350
Power steering failure 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 in Connecticut, United States
Jun 2011 - Apr 2016
Dec 2011

68000 mi

US $200
trunk latch not engaging 
Apr 2016

149000 mi
timing chain 

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2005 Audi A6 / S6 4dr Sedan

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

Audi A6 / S6 in California, United States
Feb 2010 - Jun 2011
May 2010

40000 mi
Moonroof leak. Fixed for free under recall notice. 
Audi A6 / S6 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 / S6 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 / S6 in Illinois, United States
Sep 2009 - Mar 2011
Jan 2010

56600 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 / S6 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

97000 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 / S6 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

83200 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 / S6 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 / S6 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 / S6 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 / S6 in Massachusetts, United States
Dec 2007 - Jan 2011
Oct 2009

64200 mi

US $50
Fuel gauge fluctuates 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 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

86700 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 / S6 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 / S6 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 / S6 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 / S6 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 / S6 in Florida, United States
- Jan 2008
Jan 2008

49500 mi
Replaced Catalytic converter 
Audi A6 / S6 in Illinois, United States
Feb 2007 - Dec 2012
Jan 2007

31000 mi
Fix power input closest to front dash 
Audi A6 / S6 in Florida, United States
- Jun 2008
Jun 2008

17400 mi
Repair locking mechanism in driver side door 
Audi A6 / S6 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 / S6 in Quebec, Canada
Mar 2017 - Jun 2018
Dec 2017

76260 mi

C $160
Leaky cooling hose. 
Audi A6 / S6 in New Jersey, United States
Jan 2009 - Jan 2013
Jul 2009

72000 mi
cleared code for "gross evap leak" 
Audi A6 / S6 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 / S6 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 / S6 in California, United States
Feb 2016 - Jun 2016
Feb 2016

93000 mi
Failed Fuel injector, cyl 3 
Audi A6 / S6 in Iowa, United States
Nov 2011 - Jul 2018
Jan 2012

109500 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. 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 in Indiana, United States
Dec 2011 - Mar 2012
Jan 2012

US $800
Replaced heating unit and control unit for heat/ac 
Audi A6 / S6 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 / S6 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 / S6 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 / S6 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. 

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2005 Audi A6 / S6 4-door

turbocharged 6-cylinder manual 2WD

Audi A6 / S6 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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See TrueDelta's information for all Audi models.

2011 Audi A6 / S6 Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2011 Audi A6 / S6 problems occur, check out our car reliability stats.

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