2001 Audi A6 Audi A6 2001

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2001 Audi A6 repairs by problem area

Engine (49%)

Transmission and Drivetrain (13%)

Brakes and Traction Control (3%)

Suspension and Steering (12%)

Electrical and Air Conditioning (15%)

Paint, Rust, Leaks, Rattles, and Trim (3%)

Other (6%)

Chart based on 351 repairs.
See TSBs and recalls for the 2001 Audi A6.

2001 Audi A6 repair cost distribution

$2500+ (7%)

$1000 - $2499 (17%)

$500 - $999 (20%)

$100 - $499 (30%)

< $100 (27%)

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

Chart based on 266 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2001 Audi A6

Engine not specified

Audi A6 in Michigan, United States
Nov 2007 - Mar 2010
Dec 2007

93000 mi

US $800
Turbos went out. Also got timing belt replaced. Dealer also replaced rear window switches (also out). Dealer also replaced instrument cluster (faded). 
Audi A6 in Connecticut, United States
Nov 2010 - Jun 2011
Dec 2010

164000 mi
Car currently drivable but needs the following repairs: cat converter, torque converter, rear main seal, driver's heated seat. Car has 164,000 miles, repair costs would be north of $4,000 so I am driving into the ground. Engine runs great. 
Audi A6 in Pennsylvania, United States
Feb 2012 - Mar 2012
Mar 2012

170000 mi

US $800
Changed the Oxygen sensor, cost just under 800 dollars. 
Audi A6 in Illinois, United States
May 2007 - Mar 2010
Jun 2007

62000 mi

US $650
left control arm and left cv boot 
Audi A6 in Illinois, United States
Sep 2010 - Dec 2011
Oct 2010

199000 mi

US $600
replaced oe struts at all for wheels, also took it to a shop for an alignment. only problem i had with the shop was i had to supply a tool of my own to perform the job. 
Dec 2011

218000 mi
had the trans rebuilt in april now it did not hold up. it is back at the shop that did for warrenty repair. the coolant reservoir tank started to leak 
Audi A6 in Missouri, United States
Aug 2010 - Dec 2010
Sep 2010

145000 mi

US $3000
oil cooler radiator leak valve camshaft tensioner code...did not fix yet 
Dec 2010

150000 mi

US $500
low oil pressure light came on....engine not fixable, deceased at 160,000miles 

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2001 Audi A6 4dr Wagon

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

Audi A6 in Great Britain
Mar 2011 - Mar 2016
Jul 2011

153000 mi

£120
Replaced split CV joint boots 
Apr 2015

180000 mi

£40
Broken scuttle on bottom of windscreen. Caused when a windscreen was replaced under insurance cover. 
Jan 2016

£1400
Strut top mounts 
Mar 2016

187000 mi

£280
tie rods worn 

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2001 Audi A6 4dr Wagon

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

Audi A6 in Georgia, United States
Jan 2009 - Oct 2013
May 2009

41000 mi

US $500
Both front window regulators. 1 replaced, 1 repaired. 
Sep 2012

79000 mi

US $300
Thermostat 
Apr 2013

84300 mi

US $540
Window regulator 
Audi A6 in Maine, United States
Jan 2007 - Oct 2014
Mar 2007

85000 mi

US $2000
Steering rack developed fluid leak and needed to be replaced, as did steering sensor. Torn CV boot needed to be replaced. 
Nov 2007

95000 mi
Found and replaced broken coolant jug during routine timing belt/water pump replacement. 
Jan 2009

108000 mi

US $250
Valve gaskets were leaking, dripping oil onto manifold. 
Apr 2009

113000 mi

US $1536
Replace Air Bag control module  
Jun 2009

114000 mi

US $419
Transmission output seal was leaking. 
Feb 2011

128000 mi

US $200
Power window not working properly and door not closing properly 
Sep 2011

134000 mi

US $560
Replace strut assembly 
Oct 2011

134300 mi

US $359
cam tensioner gasket and valve cover gasket to fix oil leak 
Jul 2012

141700 mi

US $200
rusty muffler 
Feb 2014

157000 mi

US $900
Coils rusted out 
Audi A6 in California, United States
Jul 2008 - Nov 2012
Aug 2008

90000 mi

US $50
Reflash for ECU... Oxygen sensor reading too high. Replaced faulty coolant temperature sensor. 
Oct 2008

93000 mi

US $350
Coolant hose to the throttle body was broken. Both feed and return lines replaced. 
Dec 2009

107000 mi

US $1100
Two of the four oxygen sensors were bad, and the other two were performing substandard. Replaced all four oxygen sensors. 
Apr 2011

125000 mi

US $150
Coolant expansion tank cap replaced. It was leaking coolant under pressurized condition. 
Jun 2011

125000 mi

US $300
CV boot failed. Also replaced the transmission output seal on the passenger side. 
Oct 2011

135500 mi

US $50
O-ring for the coolant temperature sensor failed. 
Oct 2012

146000 mi

US $550
Alternator went out 
Audi A6 in New Hampshire, United States
Nov 2012 - Apr 2013
Dec 2012

116000 mi

US $1159
Thermostat, O2 sensor, replaced serpentine belt, and new plugs n wires, 
Feb 2013

118900 mi

US $680
Fuel Pump had to be replaced. Also Antifreeze fill tank had to be replaced as well as the moldy side mirrors. 
Audi A6 in California, United States
Jun 2009 - Mar 2011
Jul 2009

83000 mi

US $50
Turn / hazard signal relay failed. 
Sep 2009

86000 mi

US $760
Water pump leak. 
Dec 2010

98000 mi

US $1300
Waterpump and thermostat leaking due to low quality parts of the previous timing belt job. 
Audi A6 in Massachusetts, United States
Aug 2011 - Jan 2013
Oct 2012

90700 mi

US $400
Windshield washer pump and controller replaced. Also a temperature sensor was replaced. 
Audi A6 in Alabama, United States
May 2014 - Jul 2015
Jun 2014

125000 mi

US $300
replaced driver side lower control arm and passenger side outer CV boot. Replaced all Vac. lines and cleared p0441 code. 
Jul 2014

125800 mi

US $20
Replaced fuse in back of symphony radio. The removal tools (4) did not release the dual din radio. I broke the front button/display pannel off, then was able to pull the rest of the radio. Re-installed and now works fine. 

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2001 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A6 in Pennsylvania, United States
Sep 2008 - Dec 2010
Oct 2008

84000 mi

US $2133
Battery indicator lit which turned out to be a bad alternator. Occurred 150 miles from home and dealer gouged me while remaining professional and pleasant. While on the lift for the alternator (and battery) replacement, mechanic noticed a torn CV boot (so they say). While on the lift getting problems 1 and 2 resolved, mechanic claims that cooling system was also leaking and needed $1,100 in non-descript repairs. I refused this having no prior symptoms. No coolant problem has emerged since (1,000 miles)!! 
Jan 2009

89000 mi

US $1200
Self-dimming LCD interior mirror failed and fluid drained out, rendering self-dimming feature inoperable. Shop replaced. Climate control blower motor had begun making noise but still operated. I suspected failing bearings ands eventual complete seizure so I had it replaced. Auxiliary electric coolant pump was found leaking during timing belt replacement and so was replaced. Also replaced all idler rollers , tensioner and main water pump during t-belt service, which is a regular maintenance item. Shop broke the windshield while trying to replace the mirror, so they replaced it at their cost (after I argued with them about 'sharing' the cost!). An oil smell (faint) could be detected inside car and while at the shop for the other service, they found both valve covers leaking. Both gaskets were replaced. While in the shop for other service, mechanic also noticed that plastic coolant tank was leaking and replaced. 
May 2010

103000 mi
Steering became less precise and rhythmic noise emanated from front wheel(s) which began to grow louder and was then accompanied by an out-of-balance sensation. Garage replaced lower control arms/bushings and re-aligned front end.. Shortly after replacement of lower control arms, car manifest a speed dependent vibration. Brought back to same shop who claimed they could not 'feel' or diagnose anything wrong with car. 
Jun 2010

103000 mi
Took car to a different shop for vibration problem. Had to accompany mechanic who then agreed he could feel vibration. Recommended new tires so I replaced all four despite two being ok. Vibration improved but was not eliminated. Decided to bring to actual Audi dealer instead of independent shop. Dealer agreed problem existed but pronounced the drivetrain sound and blamed aftermarket wheels (on car when bought 4 years prior!) Am at a loss now..... 
Sep 2010

108000 mi

US $360
Car is a twin turbo. The 'Y' horn which directs airflow to both sides of the engine had cracked at a sensor junction and had created an air leak. Also replaced spark plugs. 
Oct 2010

108000 mi

US $165
Persistent driveline vibration and hard throttle hickup. Fifth shop couldn't pinpoint solution and thinks as much as $8,000 would be required to fix, including turbo replacements (2), cat converter and driveshaft!! Am going to sell car!! 
Audi A6 in New Jersey, United States
Jun 2014 - Apr 2016
Apr 2015

107000 mi

US $1000
Replaced all control arms, tie rods, rebuilt two drive shafts, replace one caliper, resurfaced all 4 rotors and replaced 4 sets of brake pads. 4 new bridgestone tires from Costco and an alignment from local shop. All done by myself. 
Apr 2016

111000 mi

US $180
The dash LED display pixels were bad since 2012, now I found out that the display can be replaced instead of replacing the entire cluster for $150 + shipping, it is no brainier. 
Audi A6 in Tennessee, United States
Mar 2011 - Mar 2012
Oct 2011

111500 mi

US $300
vacuum hose 
Audi A6 in Illinois, United States
Nov 2010 - Mar 2012
Dec 2010

102000 mi

US $350
Replaced worn outer tie rod ends causing unusual tire wear notices during annual change to snow tires. Replacement also required wheel alignment. 
Audi A6 in Washington, United States
Sep 2011 - Jun 2018
Oct 2011

151000 mi

US $1039
Clutch started slipping under mild accelaration. Original clutch, lasted 150,000 miles. Replaced clutch and resurfaced dual mass flywheel. 
May 2012

156500 mi

US $380
Valve cover gaskets leaking severely due to excess pressure from plugged PCV/spider hose, a common issue. Replaced valve cover gaskets and installed vented oil cap to prevent immediate recurrence, will fix PCV/spider hose in near future. 
Sep 2013

168000 mi

US $2300
2 year old clutch slipping after 15000 miles due to poor driving habits. Replaced with stage 1 (RS4) clutch and lightweight single mass flywheel. 
Sep 2015

189000 mi

US $250
Replaced torn throttle body boot and commonly problematic "spider hose" PCV system with new silicon replacements. 
Dec 2015

192000 mi

US $120
Bank 1 ICM causing severe misfire in one cylinder. Verified by swapping ICM's, misfire followed. Replaced bad ICM. 
May 2016

196100 mi

US $330
Crankshaft position sensor plug damaged and sensor near edge of electrical tolerance. Verified by manipulating plug and electrical resistance test. Sensor replaced. Driver side tie rod end broken and loose in hub carrier but still attached and functional, made loud clunking while turning and driving over bumps. 
Apr 2018

224000 mi

US $500
Replaced worn control arms, shocks, brake pads and discs. 
Audi A6 in Nebraska, United States
Nov 2014 - Oct 2015
Jan 2015

141000 mi

US $350
Fuel injector o-rings replaced. 
Apr 2015

142300 mi

US $2490
Clutch failure. Dual-Mass flywheel failure. Clutch replaced. Dual-mass Flywheel upgraded. 
Audi A6 in
- Mar 2010
Sep 2006

61800 mi

$278
Bad ABS sensor in RR, had to replace bearing to correct 
Nov 2006

63694 mi

$584
Repl rack and pinion asy, steering 
Nov 2007

74960 mi

$335
Replace both front wheel bearings 
Jul 2009

91882 mi

$583
Repl a/c compressor 
Mar 2010

99381 mi

$717
repl both mufflers Repl cat. converter, scanned for error codes repl intake manifold damaged by overheating due to clogged cat converter 
Audi A6 in New Jersey, United States
Aug 2007 - Jul 2018
Oct 2007

73000 mi

US $90
R/R driver side CV Boot 
Jan 2008

79000 mi

US $5000
Timing belt, t-stat, tensioner, pulley, aux water pump, cam seals, cam tensioner gaskets, coolant temp sensor, clutch, pressure plate, flywheel, snub mount, Dahlbach chip. 
Sep 2008

85000 mi

US $40
Minor flat spots under acceleration. Replaced fuel filter and washers. Loss of coolant. Fixed by replacing expansion tank cap. 
Dec 2008

96000 mi
Fixed sunroof drain leak, which was causing headliner and trim water stains. Added hose clamps to hose connection on sunroof tray. 
Jun 2009

105000 mi

US $35
Replaced front tie rod ends. 
Jan 2010

122000 mi

US $230
Replaced driver's door locking mechanism, due to faulty microswitch that did not turn on door open signal. 
Feb 2010

123000 mi

US $160
Replaced center console armrest and cupholder Replaced passenger side front CV Joint Boot. 
Nov 2010

135000 mi

US $1000
leaky water pump. Replaced timing belt,water pump thermostat, various rollers and tensioners. about 55k on the timing belt, etc. A bit early, but leak justified the repair. Serpentine belt also. 
May 2011

142000 mi

US $300
Passenger side pre-cat O2 sensor replaced 
Jun 2011

146000 mi

US $800
Replaced engine/motor mounts. 
Oct 2011

147200 mi
rear driver side airbag short to ground. Airbag replaced. 
Feb 2012

153200 mi

US $80
Oil temp and level sensor failed. Replaced sensor. Replaced leaking coolant expansion tank. Noticed the coolant leak when I was replacing the oil temp sensor a week earlier. 
Jun 2012

154000 mi

US $710
Fuel pump failed 
Jul 2012

158000 mi

US $197
replaced 2 spark coils and left bank ignition control module 
Sep 2012

161000 mi
Airbag intermittent short to ground 
Dec 2012

162000 mi

US $5
Coolant. Fixed with a bottle of Bar's Leak. 
Jul 2013

172000 mi

US $1700
airbag light on. fixed by replacing rear seat driver side airbag replaced bank 1 pre cat O2 sensor replaced brake light switch and light bulb Coolant leak. fixed by adjusting hose clamp 
Aug 2013

172700 mi

US $2100
replaced water pump 
Sep 2013

173000 mi

US $20
Intermittent P0421 code for warm up cat inefficiency became a daily chore to clear. Inserted extender for Bank 1 post cat O2 sensor and solved the problem. 
Feb 2014

180000 mi

US $300
Needed new MAF sensor and ignition module 
Jun 2014

185000 mi

US $5
plastic coolant hose tee broke and was replaced with a brass tee. 
Mar 2015

202000 mi

US $50
Replaced passenger side front CVJ boot. 
Aug 2015

212000 mi

US $100
Lack of full turbo boost at WOT. Throttle body boot replaced due to leak under clamp. Replaced both diverter valves that had leaking diaphragms. Replaced vacuum hose to fuel pressure regulator. Replaced spark plugs. 
Mar 2016

225000 mi

US $120
replaced 2 spark coils 
May 2016

230000 mi

US $100
oil leaks fixed by replacing valve cover gaskets and cam chain tensioner gaskets/seals. 
Nov 2017

268000 mi

US $700
Replaced control arms and front shocks. Driver side front shock failed. Did both shocks and control arms and tie rod ends while the patient was open. 
Dec 2017

268000 mi

US $2
Replaced failed hose clamp on passenger side turbo hose. PITA to access clamp through wheel well. Hose hidden by frame cross member. Fixed boost leak that has been there for over a year. 
Jun 2018

277000 mi

US $3000
Clutch slave cylinder started leaking and clutch would not stay disengaged with pedal. Dealer tried new slave, but it couldn't disengage clutch, which was very stiff. Replaced clutch disk and pressure plate along with slave cylinder. Back on road. 
Jul 2018

277000 mi

US $45
MIL on. Cylinder 4 misfire. Replaced spark coil. 
Audi A6 in Washington, United States
Sep 2014 - Feb 2015
Sep 2014

143000 mi

US $1500
Water pump needed to be replaced. 
Audi A6 in Massachusetts, United States
Oct 2007 - Sep 2013
Nov 2007

90000 mi

US $2700
Clutch failure. Flywheel was also diagnosed as needing replacement. Not a catastrophic event...it was fine one day and failed the next morning upon startup. The pressure plate apparently was the culprit. 
Sep 2008

102000 mi

US $404
Auxiliary water pump leaking. Common failure with this engine. 
Oct 2008

105000 mi

US $1250
Defective rear view mirror replaced. 
Dec 2008

106000 mi

US $30
Coolant leak at temperature sender. Sender and O-ring replaced 
Mar 2009

111000 mi

US $35
Temperature sensor and O ring replaced due to coolant leak. 
Dec 2009

123000 mi
Vacuum hose split causing check engine light 
Jan 2010

124000 mi

US $480
Leaking oil from cam seals - replaced and problem solved 
Apr 2010

126000 mi

US $10
Vacuum line failed. Repaired with shrink tubing 
Oct 2010

132000 mi

US $15
Vacuum hose leak 
Nov 2010

133000 mi

US $75
Turn signal / emergency flasher switch relay replaced 
Mar 2011

136000 mi

US $215
Window regulator rattled. Rivet replaced to fix problem 
Dec 2011

142000 mi

US $190
Xenon headlamp out. Faulty ballast was replaced with used unit ($85). Dealer had diagnosed problem and quoted $675 to repair. 
Jun 2012

146000 mi

US $158
Passenger window mechanism failed. Window would not open or close. 
Jun 2013

154000 mi

US $1685
Timing belt tensioner replaced due to bearing failure. Power steering pump was initially replaced due to mis-diagnosis. Noise was actually tensioner. Fixed on 2nd trip after much 'negotiation' about the P/S repair. 

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2001 Audi A6 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

Audi A6 in Massachusetts, United States
Jul 2010 - Mar 2011
Aug 2010

122000 mi
Water collected bt. engine and firewall due to plugged drains under battery. In corners water sloshed into pass. side footwell thru cabin filter and saturated transmission module. Unplugged drains, dried out carpet, disconnected, cleaned and dried module. Valve cover gaskets. Unplugged drains under battery, dried out carpet, pulled up carpet, dried up flooring, disconnected, cleaned and dried transmission control module.  
Audi A6 in California, United States
Aug 2011 - May 2013
Sep 2011

141000 mi

US $770
Valve cover gaskets and overhead cam seals replaced. Additionally coolant tank replaced. 
Sep 2012

164000 mi

US $190
Alternator failed and I replaced it with about 6 hours work. 
Audi A6 in Minnesota, United States
Jun 2016 - Mar 2018
Nov 2016

220000 mi

US $2500
Water pump 
Audi A6 in California, United States
Feb 2010 - Sep 2015
Mar 2010

106000 mi

US $1000
replace valve cover gasket and cam plugs and cam adjuster seals. replace right front cv boot. 
Dec 2012

137000 mi

US $2700
replace torque converter 
Feb 2014

148000 mi

US $1400
Water pump failed, leaking coolant. Replaced water pump, thermostat, timing belt, etc. 
Audi A6 in South Carolina, United States
Aug 2010 - Feb 2012
Dec 2010

157000 mi

US $150
Oil pump failure Significant coolant loss--broken "t" fitting on hose to expansion tank. 
Mar 2011

162000 mi

US $250
Knocking sound that sounded like a failing CV joint turned out to be bad sway bar links. 
May 2011

180000 mi

US $950
Auxilliary fan working intermittantly. Replaced 
Audi A6 in New York, United States
Apr 2012 - Apr 2012
Apr 2012

127000 mi
Brakes going into anti-lock puslation on every stop. Rebuilt anti-lock control module put in. Anti-lock senders cleaned. Repair was not successful. 
Audi A6 in Colorado, United States
Jan 2009 - Nov 2014
Aug 2009

116500 mi

US $180
Battery Failed Numerous fuses blew when battery was left dead for extended period of time. 
Apr 2010

118000 mi

US $120
Fan on front of AC radiator/coil failed - started whining loudly. 
Aug 2010

120000 mi

US $1500
Auxillary Water Pump Failed - started leaking 
Mar 2011

124000 mi

US $1800
Radiator fan failed Upper control arms cracked - replaced. 
May 2011

125000 mi

US $120
Liquid from inside auto-dim mirror began to leak out causing the mirror to be unusable/blurred. Lower exterior door strip/trim fell off. Receiving piece of drivers sun visor broke. 
Feb 2013

133500 mi

US $1800
major vibration from front of vehicle 
May 2013

135000 mi

US $691
Alternator died slowly. In the beginning it was just a battery drain. But after a few days of troubleshooting it was evident that the alternator was on it's last leg. 
Sep 2013

136000 mi

US $47
Coolant expansion tank cracked and began to leak coolant all over. Appeared to be an aged crack due to the plastic just deteriorating over time. Engine bay hood strut failed. Replaced. Car began to run hot in traffic on warm days. Called local repair shop and they recommended using high pressure air to blow out the area between the AC and Engine radiators to ensure proper airflow. Did that, running better now. 
Mar 2014

136000 mi

US $1300
CV joint 
Nov 2014

142000 mi

US $850
Some kind of timing sensor (cam sensor maybe) failed on both sides causing it to run very rough under throttle. Xenon Headlight quit. Horn stopped honking when you lock the doors. I'm told it was because the door sensor on one of the doors quit. 
Audi A6 in Virginia, United States
Aug 2011 - Jun 2016
Sep 2011

127000 mi

US $158
Made appointment with shop to address noise from wheel, check engine light came on before appt. Shop replaced brake pads (no cost from previous brake work), reset check engine and was unable to cause check engine indicator to come back on. Diagnose check engine light, was told needed torque converter and left & right side engine mounts. Local shop and changed transmission fluid, dealer tech said this was unnecessary.  Fog light bulbs replaced, shop said was an elec problem. 
Oct 2011

127800 mi

US $3695
Replaced torque converter for about 60% of dealer's estimate. Replaced left and right engine mounts for about 60% of dealer's estimate. 
Feb 2013

153000 mi

US $2018
1 of 2 catalytic converters replaced, 1 of 4 oxygen sensors replaced to pass emissions inspection. 
Mar 2013

155000 mi

US $1086
Power steering pump failed, replaced. 
May 2013

158700 mi
Replaced CV boot 
Apr 2014

181200 mi

US $499
Transmission output seal leaking fluid, output seal replaced. 
Aug 2014

187000 mi

US $1174
Coolant leaking, replaces secondary water pump and intake gaskets 
Mar 2015

200000 mi

US $812
Car wouldn't start, jump attempted. Towed to shop and bad fuel pump was replaced. 
Audi A6 in Pennsylvania, United States
Nov 2014 - May 2018
Jan 2015

109000 mi

US $120
replace timing belt water pump and all components  replace valve cover gaskets, tensioners and cam seals power steering pump failed replaced pump 
Jun 2015

116000 mi

US $270
Replaced failed secondary air injection pump 
Dec 2015

131000 mi

US $75
Replace front shocks 
Apr 2016

137500 mi

US $140
replace control and tie rod ends 
Jun 2016

140000 mi

US $25
replaced thermostat housing 
Audi A6 in Ontario, Canada
Feb 2012 - Apr 2012
Mar 2012

148800 mi

C $450
signal light relay switch. Required air bag removal to access. Replaced 4-way flasher relay while in there. labour = 2.5 hrs. 
Audi A6 in Minnesota, United States
Sep 2009 - Jun 2011
Dec 2010

95000 mi

US $1500
Replaced fuel line after discovering leak New front left tie rod end Hazard switch replaced after blinker lights quit working CEL caused by bad oxygen sensor in the catalytic converter 
Jun 2011

100000 mi
Bad oxygen sensor when sold. 
Audi A6 in New Mexico, United States
May 2009 - Nov 2016
Jun 2009

45000 mi

US $1100
Both front CV boots torn and leaking. Replace. 
Jan 2010

50000 mi

US $464
Oxygen sensor failed 
Jul 2010

53000 mi

US $230
Replaced right front window guide 
Jul 2011

56000 mi

US $700
Replaced viscous coupling in engine driven cooling fan, clean debris from between A/C condenser and radiator Engine oil and filter change. A/C service (added .5 lb refrigerant. Price included in fan clutch replacement reported separately. 
Jan 2012

59000 mi

US $1290
Air Bag control module failed fault 65535 
Aug 2012

60900 mi

US $950
Aux water pump leaking, Coolant expansion tank leaking. R and R both, flush, new G-12 coolant 
Dec 2012

63000 mi

US $2700
Elective service to repair numerous small oil leaks in engine top-end and transmission pan, transmission fluid service. 
Apr 2013

63625 mi

US $426
Replace rib belt and tensioner Replace rib belt and tensioner 
Feb 2015

73000 mi

US $736
R and R upper link bushings (4). Oil and Filter service. R and R driver's side rear brake light bulb (n/c) 
Jun 2015

75000 mi

US $1850
r and r all four oxygen sensors and coolant temp sensor to clear persistent "check engine" light. Only one sensor was bad, but dealer recommended replacing all four to preclude recurring visits. 
Jan 2016

61200 mi

US $1250
Replace left front half-shaft due to tear in boot and subsequent loss of lubricant and dirt ingestion. 
Jun 2016

80000 mi

US $317
Replace right front axle due to cracked boot and subsequent dirt/foreign object intrusion. 
Audi A6 in Massachusetts, United States
Feb 2009 - Jun 2018
Mar 2009

73000 mi

US $2500
Coolant low warning light; supplemental water pump replaced. Timing belt replacement 
Mar 2010

80000 mi

US $2500
camshaft adjuster seals leaking right control arm had too much play -- replaced 
Jul 2016

105000 mi

US $200
Replace auto dimming mirror 
Audi A6 in Colorado, United States
Sep 2008 - Dec 2011
Oct 2008

65000 mi

US $3000
Supplemental water pump  tie rod replaced CV boot replaced Fluid filled engine mount. Warranty would only cover 20% of dealer estimated cost Auto dimming rear view mirror cloudy - warranty would not cover Auto stick shifter quit working. Warranty would not cover Oil return line on turbo - gasket replaced 
Aug 2009

74000 mi
Car stalled during high speed pass and engine acceleration resumed when backed off accelerator Oil leak from cam adjuster covers Upper control arm bushings replaced. Upper motor gasket set installed Tie rod end replaced. 
Mar 2010

86000 mi
Diagnostics and replacement of ignition control box 
Nov 2010

93000 mi

US $65
coolant tank replaced along with T connector for hoses connected to coolant tank 
Jun 2011

102000 mi

US $1100
control module and O2 sensor replaced. Brake fluid replaced 
Jul 2011

102500 mi

US $1700
Tensioner for timing belt failed. Replaced timing belt, tensioner and water pump. 
Oct 2011

105000 mi

US $100
Oil leak. Replaced seals on oil return lines to turbo. Also oil leaks from cam adjustor tensioner that were not repaired. Replaced CV joint boot 
Nov 2011

105000 mi
Additional oil leak. Cam plug replaced 
Dec 2011

105000 mi
Oil leak from turbo housing. Did not attempt repair. Traded car in. 
Audi A6 in California, United States
Oct 2007 - Mar 2010
Nov 2007

86000 mi

US $435
cam seals and cam tensioners coolant auxilary pump turbo by pass valves replaced power steering hose 
Jan 2008

86000 mi
Rollers. 
May 2009

103000 mi
leaking thermostat housing sensor in door handle for alarm replaced replaced child window lock switch in driver's door 
Dec 2009

108000 mi

US $100
replace blower motor in dash. replaced transmission mounts replaced coolant temperature sensor 
Mar 2010

113000 mi

US $2900
torque converter failed. Replaced, 
Audi A6 in Illinois, United States
May 2009 - Sep 2011
Jun 2009

128000 mi

US $1800
Replaced auxiliary coolant pump. Replaced lower control arm. Differential seals. 
Audi A6 in California, United States
May 2008 - May 2010
Sep 2009

84000 mi

US $95
intermittent c.e.l. for oxygen sensors 
Feb 2010

87000 mi

US $900
Two bad oxygen sensors 

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2001 Audi A6 4dr Sedan

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

Audi A6 in Connecticut, United States
Jan 2012 - Apr 2013
Feb 2013

110000 mi

US $200
brake switch to release from park 
Apr 2013

110000 mi

US $200
leak into floors 
Audi A6 in Texas, United States
Oct 2009 - Oct 2010
Feb 2010

125000 mi

US $600
Accessory Belt idler pully seized and came off. 
Audi A6 in Massachusetts, United States
Dec 2004 - Mar 2013
Jun 2004

102390 mi

US $1188
Replaced engine oil cooler seal, change oil 
Oct 2005

91119 mi

US $6650
Oil chg, water pump, pwr strg pump, timing belt, frnt axle boots, tailshaft housing, new tires 
Apr 2006

94063 mi

US $1006
Oxygen sensor, oil change 
Jul 2009

119048 mi

US $950
EVAP canister & c-valve replaced 
Aug 2009

119611 mi

US $1181
AC fan failure, replaced & recharge system 
Dec 2010

132000 mi

US $500
Replaced right front axle $300 Replaced leaking/cracked antifreeze liquid tank $200 
Sep 2011

138000 mi

US $500
Rear hydraulic brake cylinder was leaking brake fluid and needed replacement. 
Dec 2011

141000 mi

US $700
Float for brake fluid malfunction, replaced float, drained & replaced brake fluid. Oil leak caused by non-dealer incompetence. Replaced oil & filter. Leak corrected. CV Boot replacement. CV boots seem to tear & need periodic replacement which cost $300 for each one replaced. They last approx 2 years, depending on environment. 
Mar 2012

144000 mi

US $175
Replaced coil 
Feb 2013

154200 mi

US $5100
3rd gear clutch pack failed. Car not drivable. Towed to dealer. Clutch pack cannot be individually repaired. Transmission replaced with rebuilt tranny, warranty 6 months, parts only. Dealer provided loaner at no charge. 
Audi A6 in Manitoba, Canada
May 2010 - Jun 2012
Mar 2010

74400 mi

C $9000
removed and replaced transmission....and did timing belt at the same time 
Feb 2011

79360 mi

C $1000
Right rear caliper failed, needed new caliper, two new rotors, (left one replaced as well, to match wear). 
Nov 2011

90520 mi

C $360
door lock latches on front doors, courtesy lights do not operate, each latch is over $400 plus install for total of approx $1,200. 
Audi A6 in Pennsylvania, United States
Oct 2011 - Jun 2016
Nov 2012

124000 mi

US $4500
Trans was slipping. Having trans rebuilt. 
Mar 2013

129000 mi

US $550
Timing belt replacement as well as two noisy accessory rollers and belt. Tires and alignment as well with both inner and outer tie rods. Rods were about $550. 
Sep 2014

150000 mi

US $350
Replaced Front ABS speed sensor Replaced Front headlight level sensor 
Jan 2015

159000 mi

US $400
Drivers CV shaft replaced 
Dec 2015

181000 mi

US $1400
Wheel bearing went bad on passenger front. Replaced both bearings. Preventative maintenance replacement of all control arms and bushings since car was apart. Alignment. 
Audi A6 in California, United States
Sep 2011 - Dec 2014
Nov 2011

152800 mi

US $683
Replaced rear differential seal. Replaced right front lower control arm. 
Mar 2012

157000 mi

US $700
The fuel pump was replaced. 
Aug 2012

162000 mi

US $813
Replace upper control arms, both sides. 
Sep 2012

162000 mi

US $264
Bad valve cover gasket. Bad timing chain tensioners. 
Mar 2013

165000 mi

US $780
Torn CV joint boot. Replaced. 
Dec 2014

180000 mi
I didn't replace the bad valve cover gaskeet. Expensive problems were adding up, including airbag warning, front suspension, transmission hick-ups, oil leaks... it was estimated bringing the car up to par would cost $11,000. Airbag warning. Front suspension. 
Audi A6 in Minnesota, United States
Nov 2012 - Sep 2013
Aug 2013

115600 mi

US $200
Replaced expansion tank 
Audi A6 in Colorado, United States
May 2009 - Apr 2014
Sep 2010

109000 mi

US $1
Unusual hesitation and ESP triggering. Pulled codes using VAG-COM and saw that the brake light switch was defective. Replaced it per Bentley instructions and everything is just perfect. 
Feb 2011

117000 mi

US $30
hazard flasher switch failed.  
Aug 2011

123000 mi

US $70
Coolant overflow reservoir was developing cracks and was starting to leak. Replaced the reservoir with a new one and everything is perfect. 
Apr 2012

133000 mi

US $40
Leak from passenger-side inner driver seal. 
Nov 2012

143700 mi

US $90
Replaced all soft brake lines and bled the system. 
Jun 2013

152000 mi

US $250
Replaced fuel pump. Failed pancake valve 
Feb 2014

156900 mi

US $45
Clips on the driver's side window broke preventing the window from going up. 
Mar 2014

159000 mi

US $10
Had the airbag module repaired. Replaced vacuum lines. CEL on. 
Apr 2014

159000 mi
CEL on for vacuum leaks or EGR issues. Gah.... 
Audi A6 in Mississippi, United States
May 2014 - May 2014
May 2014

132000 mi

US $600
They never fixed it. Still doesn't start or keep running when started. Hopefully I've diagnosed the Neutral Safety Switch as the issue. Hopefully. 

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2001 Audi A6 4dr Sedan

200-horsepower 2.8L V6 5-speed shiftable automatic AWD

Audi A6 in Colorado, United States
Jun 2010 - Jan 2011
Dec 2010

120000 mi

US $65
The cam seals were leaking, I could smell burning oil within the cabin of my car and especially when I was outside of my car after drives. I put in new seals, but the didn't seat properly, now have to retry. 
Audi A6 in New Jersey, United States
Jan 2007 - Jan 2011
Jun 2008

67000 mi

US $390
both front axle outer CV joint boots broken 
Sep 2009

79000 mi

US $502
Rear transmission seal leak Engine breather clogged. 
Jun 2010

91000 mi

US $105
Four way flasher relay assembly failed. 
Audi A6 in British Columbia, Canada
Dec 2011 - Mar 2013
Jan 2012

70680 mi

C $1450
New alternator 
Oct 2012

75220 mi

C $1000
Supposedly over-filled tank - led to a complete replacement of the overflow system and resetting of the sensor software. 
Audi A6 in District of Columbia, United States
Apr 2010 - Jun 2014
May 2012

127800 mi

US $500
Replaced upper and lower front control arms 
Oct 2012

132500 mi

US $30
Flex joint in passenger side exhaust rotted out. Welded in new.  Replaced leaking cam plug in right bank rear of cylinder head. 
Sep 2013

142000 mi

US $80
Oil level/temp sensor died and I replaced it. Right rear power window regulator failed and I replaced it 
May 2014

148000 mi

US $350
Water pump was leaking-replaced 
Audi A6 in Michigan, United States
Apr 2010 - Jul 2010
May 2010

124000 mi

US $525
AUDI ECU Update to newest version for Check Engine light, Audi Dealer said the new ECU had more relaxed parameters and it may keep the CEL off. No such luck. $375. Coolant system flush (no heat), $250. 
Jul 2010

125000 mi

US $2000
Rebuilt transmission. Catalytic converters bad when sold. 

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2001 Audi A6 4-door

turbocharged 6-cylinder manual AWD

Audi A6 in Texas, United States
Apr 2008 - Mar 2012
Mar 2012

140000 mi

US $750
Needed a new alternator 
Audi A6 in Pennsylvania, United States
May 2009 - Jul 2011
Jul 2011

59000 mi

US $655
Vaccum leak. Loss of idle and power brakes. Simple repair 

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2001 Audi A6 4-door

turbocharged 6-cylinder automatic AWD

Audi A6 in California, United States
Apr 2009 - Mar 2010
Jun 2009

69000 mi

US $300
tie rods replaced. cv boots replaced. 3 window tracks replaced. 
Audi A6 in Oregon, United States
Jan 2007 - Mar 2010
Sep 2007

80000 mi
Coolant sensor 
Audi A6 in Minnesota, United States
Jan 2007 - Mar 2010
Jun 2008

95000 mi

US $675
ABS Brake sensor. 
Audi A6 in Texas, United States
Jun 2009 - Aug 2009
Jul 2009

74000 mi

US $350
O2 sensor 
Audi A6 in Arizona, United States
Jan 2007 - Mar 2010
Jun 2007

70000 mi

US $180
Torn CV Boot 
Audi A6 in Colorado, United States
Mar 2008 - Jan 2014
Apr 2008

52000 mi

US $3392
Vehicle was taken in for major oil leak, requiring engine repairs, as well as timing belt service and misc. engine repairs. 
Audi A6 in California, United States
Jan 2007 - Mar 2010
Feb 2007

47000 mi
Replaced am antenna amplifier wire. 
Apr 2007

47000 mi

US $3800
coolant tank replacement 
Dec 2007

53000 mi

US $6
Replace broken window guide; driver's side. 
May 2008

56000 mi

US $218
Bad EGT sensor driver's side. 
Audi A6 in California, United States
Aug 2007 - Mar 2010
Oct 2007

75000 mi

US $1500
Leak in compressor, required replacement . Leak in transmission seal to driveshaft. 

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2001 Audi A6 4-door

8-cylinder automatic AWD

Audi A6 in Arizona, United States
May 2009 - Mar 2010
Nov 2009

118000 mi

US $510
Transmission Rebuild. New Torque Converter. 
Feb 2010

120000 mi

US $378
New torque converter went out, replaced by shop warranty. Engine mounts replaced. 
Audi A6 in Maryland, United States
Jan 2007 - Dec 2008
Mar 2007

60000 mi

US $450
Replaced worn CV Boot  Replaced engine oil gasket that was leaking 
Jun 2008

70000 mi

US $500
Computer threw fault codes for Mass Air Flow Sensor and Catalytic converter. Mechanic recommended Mass Air Flow Sensor replacement only, as Catalytic Converter faults can sometimes be caused by Mass Air Flow Sensor. Appx 1wk has since passed w/o faults. 

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2001 Audi A6 4-door

6-cylinder automatic AWD

Audi A6 in Virginia, United States
Jan 2007 - Jul 2009
May 2007

81000 mi

US $600
Auxiliary (passenger side) fan stopped working: replaced fan and fan control module ABS warning light on: repaired ABS control module 
Jun 2007

82000 mi

US $2
Windshield washer tank leaked and drained dry... 2 grommets at pump mount had dried out and were replaced. 
Jul 2007

83000 mi

US $110
Check Engine Light: Indicated issue with Evap. Control System - no problem found. Indicated secondary issue with Oxygen sensor, checked & monitored in "real time" and no issue found. Reset light, it has not come back on in ~3 weeks since. 
Nov 2007

88000 mi
catastrophic engine failure, cam timing lost, valves broken, pistons damaged, extensive damage still under analysis for extent of repair 
Feb 2008

88000 mi

US $4100
Catastrophic engine failure: "dropped" a valve, resulting in multiple valves breaking, pistons holed, timing belt pulley bolt sheared, cam timing lost, etc. Repair consisted of replacing engine with a rebuilt engine (Long block). 
Mar 2008

88000 mi
"Low Coolant" light came on after engine replacement (100-200 miles). Checked engine, found no leaks at all, assume that all air was not bled from system. Re-bled system, no leaks found, coolant topped off. 
Apr 2008

89000 mi
"Low Coolant" light came on after engine replacement (800 miles). Checked engine, found no leaks at all, bled system. Re-bled system, no leaks found, coolant topped off. Continue to monitor coolant loss so source can be determined. 
Jul 2008

91000 mi

US $470
LF Upper Control Arm/ Ball Joint replaced Hood latch cable broke, hood could not be opened... replaced hood latch Check Engine Light on: fully test system, replace purge valve & retest. 
Jun 2009

102000 mi

US $799
Replaced 2 Oxygen Sensors which were giving Check Engine Light 
Jul 2009

102000 mi

US $1000
Catalytic converter replaced. Flex pipe gave out. Sold car, not willing to keep putting huge $$$ into a car I couldn't rely on and that might not pass emissions inspection next time. Intermittent CELs turned into constant ones and even my trusted expert indep. shop was scratching their head at it. 
Audi A6 in Georgia, United States
Jul 2008 - Feb 2009
Jan 2009

120000 mi

US $550
Replaced leaky seals. 
Audi A6 in New York, United States
Jan 2007 - Mar 2010
Apr 2007

78000 mi

US $50
Climate control not accurate in heat mode. Temp in the cabin would decrease while the temp setting had to be continuously increased. Thermostat replaced. 

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2001 Audi A6 Repair Histories

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