2006 Audi A6 Audi A6 2006

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2006 Audi A6 repairs by problem area

Engine (31%)

Transmission and Drivetrain (5%)

Brakes and Traction Control (6%)

Suspension and Steering (16%)

Electrical and Air Conditioning (31%)

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

Other (4%)

Chart based on 265 repairs.
See TSBs and recalls for the 2006 Audi A6.

2006 Audi A6 repair cost distribution

$2500+ (8%)

$1000 - $2499 (14%)

$500 - $999 (11%)

$100 - $499 (30%)

< $100 (36%)

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

Chart based on 192 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2006 Audi A6

Engine not specified

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

67000 mi

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

85700 mi

US $300
Metal fragments found in engine. Engine replaced under extended warranty bushing replaced 

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2006 Audi A6 4dr Wagon

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

Audi A6 in Mississippi, United States
Jan 2013 - Jun 2015
Jul 2014

111700 mi

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

118000 mi

US $120
Low freon. Recharged 
Audi A6 in Alberta, Canada
Dec 2009 - Jun 2017
Mar 2011

93000 mi

C $1500
Replaced worn front sway bars. 
Jul 2011

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

119660 mi

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

119660 mi

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

127720 mi

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

133860 mi

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

139860 mi

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

150660 mi

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

151360 mi

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

153160 mi

C $400
Windshield washer container developed a crack resulting in a leak. This was replaced. Required over two hours labour because of difficulty with access. 
Audi A6 in Denmark
Dec 2012 - Feb 2014
Jan 2013

$2500
Timing chains had stretched, and engine had to be pulled out to replace them. Additional parts around the chains were also replaced. Faulty compressor in air suspension. 
Audi A6 in Alberta, Canada
Apr 2011 - Sep 2016
Nov 2013

80600 mi
valve cover gasket 
Apr 2016

99500 mi

C $500
Had to replace the AC compresor. 
Audi A6 in Washington, United States
Apr 2014 - Jun 2018
May 2015

80400 mi

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

84500 mi

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

87000 mi

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

88000 mi

US $160
replaced control arm and stabilizer bar end links 
Audi A6 in New Hampshire, United States
Sep 2008 - Aug 2009
Jan 2008

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

37500 mi
Replace HVAC module under warranty 
Audi A6 in Wisconsin, United States
Jun 2016 - Aug 2016
Aug 2016

87000 mi

US $300
All control arms timing chain cover gaskets, both valve cover gaskets, brake vacuum pump, air and cabin air filters replaced vacuum lines 
Audi A6 in Kentucky, United States
Sep 2015 - Jun 2018
Dec 2015

121000 mi

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

138000 mi

US $90
Replace brake pads all 4 corners 
Audi A6 in Virginia, United States
Aug 2015 - Jun 2018
Sep 2016

135000 mi

US $800
Front right airspring failed. Replaced both front with aftermarket units ABS module failed. Removed, rebuilt by CheapABS and re-installed Replaced upper control arms and sway bar end links 
Audi A6 in Pennsylvania, United States
Apr 2009 - Jun 2018
Feb 2011

66000 mi

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

123000 mi

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

130000 mi

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

134500 mi

US $1800
Apparently the evap test pump (see previous entry) took the ECU with it when it failed as the CEL came back after 2k miles. Replaced ECU, CEL good so far (about 1k miles). 
Audi A6 in Utah, United States
Apr 2011 - Aug 2017
May 2011

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

79000 mi

US $149
Replace sway bar end links 
Aug 2013

94000 mi

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

98000 mi

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

100000 mi

US $1900
MMI Amplifier 
Oct 2014

100700 mi

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

102600 mi

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

104000 mi

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

122000 mi

US $4000
Restore timing cover gaskets, replace vacuum pump, new brakes and rotors 
Audi A6 in Pennsylvania, United States
Sep 2008 - May 2010
May 2009

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

42000 mi
Rear wiper blade housing failed; blade would not stay in if lifted up. Fully replaced housing, OK now. 
Audi A6 in 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 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. 

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2006 Audi A6 4dr Sedan

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

Audi A6 in New Jersey, United States
Mar 2011 - Jun 2018
Jul 2011

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

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

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

95000 mi

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

101800 mi

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

113000 mi

US $1300
Front bushings 
Oct 2015

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

132000 mi

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

135000 mi

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

134700 mi

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

144000 mi

US $1050
Engine temp gauge would not move from C. Replaced thermostat and temp sensor. 
Audi A6 in Vermont, United States
Sep 2006 - Nov 2009
Aug 2006

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

8366 mi

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

23383 mi

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

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

35500 mi

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

45000 mi
driver side front wheel bearing replaced -- humming noise noticed which could not be attributed to tires or anything else. 
Audi A6 in Texas, United States
Apr 2009 - Jan 2015
May 2009

45000 mi
Headlight washer mechanism had to be replaced 
Mar 2010

50000 mi
Replaced defective coil packs. 
Aug 2014

74700 mi

US $4184
AC Compressor, dryer & orifice tube replacement, plus 75000 service. 
Audi A6 in Missouri, United States
Dec 2013 - Sep 2014
Mar 2014

72000 mi

US $3400
New valve covers and spark plugs New control arms 
Audi A6 in Indiana, United States
Jul 2015 - Aug 2015
Aug 2015

156000 mi

US $100
Car was misfiring, one of my coils was replaced. 
Audi A6 in British Columbia, Canada
Feb 2013 - Dec 2016
Jun 2013

86800 mi

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

89240 mi

C $470
Valve cover gaskets failed. 
Jan 2014

91140 mi

C $400
ABS control module failed - common problem. 
Audi A6 in Georgia, United States
Nov 2013 - Sep 2015
Mar 2014

65000 mi

US $800
Transmission making hard clunk changing gears 
Dec 2014

80000 mi
Transmission leaking and clunking 
Audi A6 in California, United States
Feb 2015 - Dec 2015
Apr 2015

112000 mi

US $400
Battery needed replacement 
Audi A6 in Kansas, United States
Jan 2010 - Aug 2017
Jul 2011

50700 mi

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

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

74000 mi

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

89000 mi

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

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

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

99600 mi

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

101000 mi

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

56600 mi

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

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

119000 mi

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

121000 mi

US $750
Fuel not reaching engine effectively. Replaced fuel pump, fuel suction jet pump, suction jet line, gaskets. 

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2006 Audi A6 4dr Sedan

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

Audi A6 in South Carolina, United States
- Jun 2009
May 2009

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

34500 mi

US $1499
Replaced front bumper-600.00 Replaced rear chrome molding-110.00 Labor and Paint Supplies- 759.00 **110.00 out of pocket costs, all else was reimbursed by insurance 
Audi A6 in 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 in South Africa
Jun 2011 - Aug 2015
Jul 2011

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

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

93200 mi

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

93000 mi

R 17500
Not Starting, TCU failure. Repaired TCU by non dealer repairer, but CAN com failure on repaired TCU. Replace TCU at dealer. Cost in ZAR South African Rands; about $1,590. 
Audi A6 in Florida, United States
Dec 2011 - Dec 2013
Jan 2012

78300 mi

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

55500 mi

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

62300 mi

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

63000 mi

US $950
replaced passenger strut, both upper bushings on pass and driver side as suspension suddenly bounced a lot more 
Audi A6 in 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 

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2006 Audi A6 4dr Sedan

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

Audi A6 in Florida, United States
Nov 2008 - Oct 2016
Nov 2009

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

42000 mi
power window regulator 
Sep 2011

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

63000 mi

US $400
Horns replaced. Front left amber driving light out following repair. Went back to have it replaced. 
Audi A6 in Wisconsin, United States
Dec 2013 - Jun 2018
Aug 2014

176000 mi

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

240000 mi

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

246000 mi

US $900
Brake warning light came up on HUD. New rotors and brake pads required. Takata airbag sensor recall/replacement. 
Audi A6 in Washington, United States
Dec 2008 - Mar 2018
Dec 2011

68700 mi

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

82000 mi

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

89900 mi

US $800
Hot air from outer vents when AC on 
Audi A6 in New Jersey, United States
Jan 2014 - Sep 2016
Jan 2015

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

138300 mi
Low fluid 
Jun 2015

145000 mi

US $100
Replaced fluid 
Sep 2015

150000 mi

US $2100
New compressor motor 
Nov 2015

152900 mi
Leaking oil 
Feb 2016

157000 mi

US $1100
Seals. Leaking oil. 
Audi A6 in Kentucky, United States
Apr 2015 - Apr 2017
Dec 2016

169000 mi

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

169000 mi

US $200
Worn pads,e brake is acting weird now will update later 
Audi A6 in Pennsylvania, United States
Dec 2013 - Dec 2017
Oct 2014

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

111200 mi
P2404 re-appeared after several hundred miles. 
Audi A6 in Washington, United States
May 2015 - Mar 2018
Sep 2016

62000 mi

US $800
Tire sensor malfunction due to low batteries 
Audi A6 in Colorado, United States
Feb 2014 - May 2018
Aug 2014

94100 mi

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

97000 mi

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

106500 mi

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

114000 mi

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

118000 mi

US $160
We required a replacement of the entire LED right rear brake light unit in order to fix this issue. It was deemed to be due to corrosion on the circuits within the brake light unit. The market has responded with several aftermarket brake light housings. Cost was $160 for the unit. Replaced by owner (15 minute job, very easy). 
Audi A6 in California, United States
Dec 2008 - Mar 2010
Jan 2009

37000 mi
Electrical system shorted. First, no sound from any system. While waiting for appointment, car would not start (sound came back on) and had to be towed. 
Audi A6 in New Mexico, United States
Oct 2013 - Jul 2018
Oct 2013

101000 mi

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

120300 mi

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

128000 mi

US $62
Replaced a leaky spare tire Did a trip check, also got info on the check engine light which is some kind of sensor problem 
Audi A6 in New York, United States
Oct 2008 - Jun 2018
Dec 2008

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

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

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

91000 mi

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

131000 mi

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

138900 mi

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

154000 mi

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

159800 mi

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

172000 mi

US $980
right front wheel bearing worn, part replaced. 
Audi A6 in 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 in Pennsylvania, United States
Aug 2011 - Oct 2011
Sep 2011

72000 mi

US $250
Check Engine Light - EVAP purge valve replaced. Rear parking assist buzzer failed, replaced 
Audi A6 in Illinois, United States
Oct 2009 - Nov 2015
Jan 2010

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

80000 mi
TPMS warning keeps coming on, no issues with tire pressure. TPMS replaced. 
Audi A6 in California, United States
Jun 2010 - May 2014
May 2011

87000 mi

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

92000 mi

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

140000 mi

US $145
I needed to have the sunroof repaired. The rubber on some springs had failed and they ordered a replacement kit and installed it in about 45 minutes (after the kit arrived). 
Audi A6 in Alberta, Canada
Dec 2009 - Jun 2017
Aug 2010

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

46500 mi

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

75300 mi

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

93280 mi

C $150
Replaced pulley of serpentine belt tensioner 
Sep 2016

97960 mi

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

102300 mi

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

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

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

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

71000 mi

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

77000 mi
Clogged drains caused water to get behind firewall and flood underneath the carpet. Electronics and carpet were damaged. 
Audi A6 in Massachusetts, United States
Nov 2011 - Jun 2013
Dec 2011

116000 mi

US $365
Replace driver front wheel bearing 
Mar 2012

121000 mi

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

139000 mi

US $400
Doors won't lock, car won't start.....replace ignition switch 
Audi A6 in Washington, United States
Nov 2010 - Jul 2012
May 2011

92000 mi

US $50
Fuel sensor quit working, indicators on dash said 0 miles left and needed fuel, gauge for fuel was below empty, but tank was full. Fixed in 4 hours. Cost was $50 warranty deductible. 
Audi A6 in Missouri, United States
Nov 2010 - Mar 2014
Dec 2011

96000 mi

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

101400 mi

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

121300 mi
Tire pressure sensor malfunction. Shop could not pin point which one failed but I was told it is likely the battery going out on them. All 5 would need to be replaced at about $140 each or about $700 Small leaks in the oil pan, oil drain plug, valve covers. Estimated about $1000 to repair. Instead I'll add a little oil occasionally. I believe I was told tie rod end that was becoming loose and should be replaced soon. Estimated $1000 
Audi A6 in Arizona, United States
Jun 2012 - Nov 2013
Dec 2012

85000 mi
timing chain seal, valve cover gasket 
Jul 2013

92700 mi

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

94000 mi

US $300
power steering fluid leaking. clamps and hose replaced. 
Audi A6 in California, United States
Sep 2008 - Apr 2012
Jun 2009

28000 mi
 
Audi A6 in Texas, United States
Mar 2013 - Jan 2017
Dec 2013

78000 mi

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

78900 mi

US $1100
Air suspension strut failed 
Sep 2014

86000 mi

US $1500
Air suspension failed Purge valve sticking 
Dec 2015

95000 mi

US $650
repaired oil leak 
Mar 2016

98000 mi
Engine oil leak 
Apr 2016

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

95000 mi

US $2400
Broken motor mount Replaced power steering pump 
Audi A6 in Michigan, United States
Nov 2011 - Sep 2017
Jun 2013

46000 mi

US $200
Tire pressure monitoring system - battery failure 
Audi A6 in Ontario, Canada
Feb 2011 - Jun 2013
Mar 2011

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

76340 mi

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

84940 mi

C $900
Shifting hard,2nd&3rd,3rd-4th.The computer needed reprogramming.3 hrs labour cost and 5L(@$67/litre?? WOW)tranny oil. Well,it didn't fix it, made it worse, and now they want to replace the mecatronic at a cost of $6600 !!! Don't think so! 
Audi A6 in Virginia, United States
Mar 2010 - Sep 2012
Mar 2010

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

98000 mi

US $9100
Started shifting roughly. Dealer said replace transmission. Between this, upcoming need to replace control arms, and $1,500 annual maintenance, decided to sell car as-is. Afterwards learned might have been able to fix with a $200 module. Replace Transmission 
Audi A6 in New Jersey, United States
Mar 2013 - Jan 2017
Aug 2016

105300 mi

US $300
Check Engine Light comes on intermittently 
Jan 2017

103000 mi
Check Engine light was NOT repaired and it remained a problem, which was the reason I sold the car. 
Audi A6 in New York, United States
May 2009 - Jun 2014
Apr 2011

66000 mi

US $450
seat belt tensioner caused a check air bag light to illuminate 
Audi A6 in 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 

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2006 Audi A6 4-door

turbocharged 4-cylinder diesel CVT 2WD

Audi A6 in Netherlands
Aug 2009 - Dec 2014
Sep 2009

55800 mi

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

76260 mi

€1200
dual mass flywheel broken 

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See TrueDelta's information for all Audi models.

2006 Audi A6 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 2006 Audi A6 problems occur, check out our car reliability stats.

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