| 1 | 0 | 3 | 4 | 3 | 4 |
2005 Audi A8 repairs by problem area
Chart based on 145 repairs.
Chart based on 111 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2005 Audi A8 4dr Sedan, ext.
450-horsepower 6.0L W12 6-speed shiftable automatic AWD
| Audi A8 in Ohio, United States Jan 2013 - Sep 2013 | |||
| Sep 2013 89000 mi US $2500 |
My MMI went out. Had to install new MMI brain. | ||
| Audi A8 in Quebec, Canada Aug 2016 - Dec 2020 | |||
| Jan 2016 90520 mi C $400 |
Repaired parking brake motor. | ||
| Oct 2017 99820 mi C $1500 |
J518 acc/start auth module defective. (integrates the immobilizer system function and steering wheel lock mechanism). I was lucky it started, I was about to tow it. Problem was caused by a drain clog in the firewall. Water accumulated under the carpet and entered the access start module, creating corrosion. Module had to be replaced. | ||
2005 Audi A8 4dr Sedan, ext.
330-horsepower 4.2L V8 6-speed shiftable automatic AWD
| Audi A8 in Massachusetts, United States Apr 2012 - Dec 2019 | |||
| Nov 2012 81600 mi US $700 |
leaking cylinder head gaskets causing burning smell | ||
| Mar 2013 83000 mi US $6300 |
Plastic connector for coolant into oil cooler leaking, required dropping engine to replace component. It's likely this was damaged when a faulty thermostat caused the engine to apparently overheat a year ago, fixed under warrantee. | ||
| Jul 2014 95300 mi US $310 |
right front xenon headlamp replaced. | ||
| Dec 2014 99000 mi US $300 |
left front xenon low beam bulb | ||
| Jan 2015 91000 mi US $1800 |
heater core clogged - low heat output | ||
| Feb 2016 109000 mi US $350 |
Joint near catalytic converter corroded and leaking, with load noise | ||
| Sep 2016 112000 mi US $800 |
started motor solenoid - once engine was warm it would not start - ended up replacing motor - which is complex since access meant engine support submember needed removal | ||
| Dec 2017 121000 mi US $400 |
valve cover gasket, attempted to fix by tightening bolts | ||
| Jun 2018 123000 mi US $1800 |
valve cover gasket replacement slippage detected in AT, rough shifts when cold - suspect fluid change needed but dealer recommended against saying it's a "lifetime part" ... | ||
| Sep 2019 120000 mi US $500 |
calipers were sticking | ||
| Audi A8 in Colorado, United States Nov 2011 - Sep 2017 | |||
| Dec 2011 110000 mi US $400 |
Passenger side back-up light Bulb alone $40+ Trunk would not latch | ||
| Jan 2013 135000 mi US $500 |
Headlights work intermittent. Dealership can not find a problem. Headlamps turn off while driving will not come back on. Wires connecting rear air big sensor failed | ||
| Jan 2015 127700 mi US $1100 |
Headlights become too dim at night to be able to drive after dark. Dealer quoted $4,000 to fix! Found replacement Hella units for $900 at carid.com, labor to install at Body Ship $200. | ||
| Audi A8 in Florida, United States Mar 2013 - Dec 2014 | |||
| Apr 2013 153000 mi US $362 |
Driver headlight went out. Replaced element, still out. Replaced module, still out. Replaced ballast (exciter), worked. | ||
| Jun 2013 158000 mi US $700 |
Tranny was misbehaving. Paid $500 for transmission fluid and filter replacement, and was very pleasantly surprised to report that all issues were cured! I highly recommend this. Also $200 to replace evaporator drain tubes, which had clogged. | ||
| Sep 2013 163000 mi US $1000 |
Alternator went out. Water cooled alternator purchased from Audi dealer($605) 3 hours labor. Also had oil change at same time. | ||
| Nov 2013 167000 mi US $3600 |
Heard a noise in top of engine. Pulled over, shut down. opened hood, started car and heard bad noise up top. Called AAA for 570 mile tow (Platinum plan OK!) Was cam timing chain tensioner piston. Did Timing belt and rollers at same time. | ||
| Dec 2014 192000 mi US $2000 |
Air compressor for shocks. Bought aftermarket unit for one third of Dealer price. $1,500. ABS control unit failed. Tried to have unit repaired, but unsuccessful. purchased used unit from salvage yard. my mechanic installed. Salvage yard re-programmed unit. Works properly, except some warning lights were unable to be cleared- Audi. $500. | ||
| Audi A8 in Virginia, United States Dec 2013 - Mar 2017 | |||
| Aug 2014 87000 mi US $1600 |
Control arms and suspension bushings. | ||
| Aug 2015 96100 mi US $6000 |
Wheel bearings are known to corrode in the aluminum knuckles. Away bar end links were trashed. Soft close door modules failed in the back, on both sides. | ||
| Jul 2016 102500 mi US $2240 |
The front air suspension dropped and wouldn't raise. Both front air springs were actively leaking | ||
| Audi A8 in Washington, United States Dec 2010 - Jun 2011 | |||
| Sep 2010 66824 mi US $1541 |
Check Engine Lamp on. Fault code for Catalytic Converter failure. Replaced 1 of 2 Catalytic Converters. (Repair covered by Federal 8/80 Emissions Warranty - $0 deductible. Service Adviser estimates about $4000 if not warranted) Driver window does not go full-down automatically when switch is pushed to 2nd click. Replaced master window switch assembly. Steering wheel MMI controls not working. Replaced shorted steering wheel MMI control switch "Creaking" noise from front over speed bumps. Replaced front left and front right upper link bushings. | ||
| Jan 2011 72597 mi US $576 |
Misfire and Check Engine Lamp #6 fuel injector connector broken Replaced #6 fuel injector and connector Covered by extended warranty - Only paid $100 deductible | ||
| Audi A8 in Montana, United States Jul 2015 - Aug 2016 | |||
| Jul 2015 137000 mi US $650 |
Replaced upper control arms, alignment, ACC calibration | ||
| Sep 2015 139000 mi US $430 |
Had to take car back to dealer to have alignment done again as they didn't tighten suspension components last time they did it. | ||
| Audi A8 in Maryland, United States Aug 2011 - Sep 2015 | |||
| May 2013 99900 mi US $300 |
replace sun roof deflector motor | ||
| Aug 2013 101000 mi US $4250 |
coolant leak requiring engine removal to get to the leak | ||
| Jan 2014 104000 mi US $800 |
stuck heater control valve | ||
| Sep 2014 131000 mi US $225 |
cooling overflow tank leaking | ||
| Dec 2014 134000 mi US $250 |
heater fan sporadically failed. regulator replaced. | ||
| Jun 2015 141000 mi US $175 |
mmi screen hung up | ||
| Sep 2015 147000 mi US $450 |
heater fan malfunction | ||
| Audi A8 in Texas, United States Sep 2010 - Jun 2015 | |||
| Sep 2010 56526 mi |
REPLACE MASS FLOW SENSOR REPLACE UPPER LINKS BUSHING DEALER PAID (CAR JUST PURCHASED) | ||
| Oct 2010 56526 mi US $100 |
PLACE FUEL CAP TETHER (DEALER PAD) REPLACE MAF SENSOR ($652) (WARRANTY) $100 DEDUCTABLE | ||
| Nov 2010 57691 mi US $586 |
REPLACE INTAKE MANIFOLD GASKET ($896) REPLACE CRANK CASE VALVE ($242) CARBON CLEAN UP OF VALVES + AIR FILTER ($150) Insurance Paid Partial | ||
| Dec 2010 59693 mi US $84 |
REPLACE MMI SCREEN MOTOR ($1436) WARRANTLY DID NOT COVER REPLACE INSTRUMENT CLUSTER (84) (Burned out dash lights across middle of dash) WARRANTY DID NOT COVER | ||
| Jun 2011 65457 mi US $258 |
REPLACE SPARE TIRE SENSOR (WARRANTY DID NOT COVER) REPLACE TRUNK MOTOR REPLACE TRUNK HINGES (damaged by motor) $793 Warranty paid minus $100 deductable. UPDATE NAV DATABASE | ||
| Oct 2011 69200 mi |
REPLACED EVAPORATIVE PURGE VALVE REPLACED BASE GASKET ON COMBI VALVE REPLACE CAT CONVERTOR BANK2 REPLACED BOTH VALVE COVER GASKETS REPLACE BASE GASKET ON COMBI VALVE (exhaust leak in Bank1) $441 $100 Deductable REPLACE EVAPORATIVE EMISSIONS PURGE VALVE $275 $100 DEDUCTABLE REPLACE BOTH VALVE COVER GASKETS $505 Warranty paid minus $100 deductable. REPLACE CAT CONVERTOR BANK2 (government mandate; paid by government) | ||
| Jan 2012 71870 mi US $196 |
OIL LEAKS: DRIVER SIDE CAM CAPS, VALVE COVER GASKETS (BANK 2). REPAIRED/REPLACED OIL LEAKS * DRIVER SIDE CAM CAPS * VALVE COVER GASKETS BANK 2 REPLACED/REPAIRED | ||
| Mar 2012 75000 mi US $100 |
TRUNK MOTOR FOR "PULL & SEAL", $100 INSURANCE DEDUCTABLE | ||
| Feb 2013 84800 mi US $780 |
BOTH FRONT AIR BAGS (AIR SPRINGS) $4200. INSURANCE PAID LESS $100 DEDUCTABLE. REPLACE BOTH FRONT SWAY BAR LINKS. Not covered by warranty. $780 (INSURANCE DID NOT PAY) REPLACE FRONT MOTOR MOUNT, $740. INSURANCE PAID LESS $100.00 DEDUCTABLE. | ||
| Apr 2013 87000 mi US $100 |
BLOWER MOTOR REPLACED FOR A/C $641 (PARTS 299 LABOR 342) ONE WINDOW REGULATOR ASSEMBLY REPLACED $437 (PARTS 272 LABOR 165) OIL LEAK. REPLACED VALVE COVER GASKET. $314 (PARTS 80 LABOR 234) | ||
| May 2013 87800 mi US $479 |
OIL LEAK. SEAL ON BANK 1 FRONT SENSOR REPLACED. PARTS 11 LABOR 236 HEADLIGHT SWITCH REPLACED PARTS 250 LABOR 82 INSURANCE DEDUCTABLE 100 INSURANCE PAID 232 | ||
| Oct 2013 92600 mi US $1182 |
REPLACED HEADLAMP COOLANT TANK REPLACED | ||
| Feb 2014 95500 mi US $1826 |
upper link bushings replaced during 95,000 mile service. parts $136, labor $663. upper link bushings (front) replaced | ||
| Apr 2014 97900 mi US $773 |
REPLACED VALVE COVER AIR/FUEL RATION WAS OFF SINCE THE ABOVE WAS LEAKING REPLACED VALVE COVER AIR/FUEL RATION WAS OFF SINCE THE ABOVE WAS LEAKING | ||
| May 2014 98600 mi US $520 |
REPLACED ENGINE SPEED SENSOR REPLACED ENGINE SPEED SENSOR | ||
| Dec 2014 98700 mi US $7200 |
Car wouldn't start. Sensor on flywheel malfunctioned, sent bad signals to computer, overheating it, then car shut down. This took 7 months to diagnose and repair. Extended warranty paid $6170. Audi ate about $4,000 in unnecessary engine repairs. Sensor on flywheel malfunctioned. Transmission job done. This took 7 months to diagnose and repair. Sensor on flywheel malfunctioned. Transmission job done. This took 7 months to diagnose and repair. May through December 2014. | ||
| Audi A8 in Texas, United States Mar 2011 - Feb 2014 | |||
| Mar 2011 40000 mi US $500 |
replaced trunk lever mechanism and motor | ||
| Apr 2011 41000 mi US $200 |
drive belt replaced showed signs of wear | ||
| Oct 2011 48000 mi US $2200 |
Compressor of the air suspension system. Partly drivable, the bottom would scrape the pavement when I hit potholes or humps. Part is not available in the houston area, part is being shipped from dallas. Part alone is $1,400.00. dynamic suspension | ||
| Dec 2011 51000 mi |
entire striker assembly was replaced | ||
| Oct 2013 67500 mi US $500 |
bushing on control arm | ||
| Audi A8 in New York, United States Dec 2010 - Mar 2014 | |||
| Apr 2011 47000 mi US $108 |
Tire pressure monitor failed. Sensor replaced. The entire unit must be replaced (about $200 each) after ~5 years. Stupid!! The lithium battery is identical to the cheap units in my watch. | ||
| Apr 2012 61200 mi US $40 |
Brake light switch faulty, replaced. | ||
| Dec 2013 80000 mi US $5000 |
Entire suspension, front & rear | ||
| Audi A8 in Texas, United States Jan 2011 - Oct 2011 | |||
| Feb 2011 69000 mi US $600 |
Both MMI and GPS units replaced. | ||
| Oct 2011 74000 mi US $75 |
MMI motor gears | ||
| Audi A8 in Maryland, United States Dec 2010 - Oct 2018 | |||
| Jul 2013 105700 mi US $400 |
105,000 Service-Audio and MMI are not working properly. Dealer has not been able to diagnose or find problem. | ||
| Sep 2013 109000 mi |
Two year old battery was replaced; battery control module was updated along with an MMI Zug update. Some MMI problems were solved but other problems in multifunction steering wheel cropped up. None of the controls on the multifunction work. I am waiting for steering wheel parts to come in. | ||
| Jan 2017 144500 mi US $3000 |
Timing Belt, Plugs, Discs, Pads and tires | ||
| Audi A8 in Alaska, United States Dec 2010 - Oct 2012 | |||
| Apr 2011 96000 mi US $703 |
left rear door handle getting increasingly looser | ||
2005 Audi A8 4dr Sedan
330-horsepower 4.2L V8 6-speed shiftable automatic AWD
| Audi A8 in Michigan, United States Jun 2009 - Jul 2012 | |||
| Dec 2009 64000 mi US $500 |
New Battery installed, $205. Diagnostic and labor to fix ESP fault totalled to be $500 including battery. Reason for fault was a faulty brake light switch $22 + labor. Final Result $500 | ||
| Feb 2010 67000 mi US $675 |
Fully replace MMI screen mount due to failure to open and close correctly. Gears broken and switch that controls the start and stop of MMI motor faulty. Total cost including labor. | ||
| Audi A8 in Washington, United States Jan 2016 - May 2017 | |||
| Mar 2016 109000 mi US $200 |
Retaining clips for electrical connectors to fuel injectors needed to be replaced. | ||
| Apr 2016 110000 mi US $250 |
ABS module failed. Battery was weak. | ||
| Audi A8 in Utah, United States Feb 2016 - Sep 2018 | |||
| Sep 2016 68000 mi US $140 |
Evaporate valve on the fuel system keeps failing in the closed position. | ||
| Dec 2016 69000 mi US $200 |
Scavenger system on the fuel sustem | ||
| Audi A8 in Washington, United States Oct 2012 - Jun 2014 | |||
| Nov 2012 80500 mi |
replaced torn upper control arm bushings | ||
| Audi A8 in Michigan, United States Dec 2010 - Oct 2015 | |||
| Jan 2011 91000 mi |
TPMS sensors failed twice. Currently functioning. Dealer said TPMS batteries failed. Will replace for $50 under CPO warranty. | ||
| May 2011 96700 mi US $50 |
Replaced all five sensors. | ||
| Oct 2011 102700 mi US $3000 |
Leaking water pump and damaged timing belt. Also replaced worn tie rods. Amir at Suburban Audi took OUTSTANDING care of me with loaner car and more. | ||
| Mar 2012 113000 mi US $500 |
Replace LF suspension bushing | ||
| Jul 2012 119200 mi US $1000 |
replace right rear wheel bearing | ||
| Oct 2012 125800 mi US $1000 |
Bushings torn on upper control arms. Replaced bushings. | ||
| Dec 2013 160000 mi US $3000 |
All bushings in suspension needed replacement, plus sway bar. | ||
| Oct 2014 170000 mi US $1000 |
replace control arm | ||
| Audi A8 in Texas, United States Feb 2011 - Dec 2011 | |||
| Dec 2011 116000 mi US $2000 |
Car gave yellow suspension light. All suspension options in MII are greyed out. Air compressor for suspension not outputting sufficient pressure to air suspension. Replaced compressor and relay. Yellow suspension light is gone. | ||
| Audi A8 in California, United States Dec 2010 - Sep 2014 | |||
| Jul 2011 81500 mi |
Warning light for seat belt. Left rear seat belt tensioner igniter fault. Replaced left rear seat belt assembly. | ||
| Dec 2012 106000 mi |
Car was overheating. Diagnosed as a bad thermostat Was loosing coolant slowly. Diagnosed as a verysmall leak in the oil radiator. Estimated cost to repair was $4000, so repair not done at this time. | ||
| Jun 2013 111000 mi US $2395 |
Engine oil cooler leaking coolant. Had to drop engine and transmission to get to the cooler. Dealer quoted $4000 for this repair. MMI display gear stripped. Qouted $960 to fix. I declined. Found replacement gear on internet, will do myself. TPMS system malfunction. TPMS sensors in wheels need to be replaced. Estimated cost $850. Found TPMS units on web for $46 each. Will have tire store replace. | ||
| Jul 2013 111300 mi US $200 |
TPMS sensors replaced. | ||
| Aug 2014 119000 mi US $1386 |
Check eng. light on. Was alternator problem. Need new WATER COOLED alternator Suspension light came on. Right front corner low. Had to replace front passenger side suspension air bag Center arm rest broken. Repair cost about $400 Nav display making clunking noise on way up and way down. I bought a new gear on the internet for about $15. Repair took about 3 hours. Followed directions from the internet. Everything works great now. | ||
| Audi A8 in New Jersey, United States Dec 2010 - Apr 2013 | |||
| Feb 2010 68033 mi US $50 |
replace trunk hinges | ||
| Aug 2010 US $525 |
Replace MMI screen mechanism Replace trunk lift motor | ||
| Sep 2010 80058 mi US $50 |
Check engine light on - replaced air mass sensor | ||
| Mar 2011 88000 mi US $340 |
Tire Pressure monitor fault. System antenna replaced; however problem still exists | ||
| Apr 2011 91000 mi US $275 |
Crankshaft position sensor failed | ||
| Jun 2011 93000 mi US $300 |
Outer driver door handle replaced -lock button failed and could not lock the car using the keyless system Had tire pressure monitoring system disabled. Complete repair would cost up to $1,500 so had mechanic disable the system | ||
| Sep 2011 96000 mi US $40 |
MMI system would not work and system could not be re-booted. Technician found a stuck button on the MMI controller | ||
| Mar 2012 106000 mi US $750 |
Replace control arms - noisy when cold | ||
| Oct 2012 114000 mi US $450 |
Replaced left front wheel bearing | ||
| Audi A8 in California, United States Sep 2011 - Dec 2015 | |||
| Dec 2011 89000 mi US $50 |
Trunk Lock Mechanism Dealer Left Clean Air Sensor detached | ||
| May 2012 91900 mi US $900 |
Fuel Pump Failed and Oxygen Sensor Failed | ||
See TrueDelta's information for all Sedans
See TrueDelta's information for all Audi models.
