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2005 Audi A8 / S8 repairs by problem area

Engine (32%)

Transmission and Drivetrain (3%)

Brakes and Traction Control (3%)

Suspension and Steering (19%)

Electrical and Air Conditioning (32%)

Paint, Rust, Leaks, Rattles, and Trim (1%)

Other (10%)

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Chart based on 145 repairs.

See TSBs and recalls for the 2005 Audi A8 / S8.

2005 Audi A8 / S8 engine repair cost distribution

$2500+ (13%)

$1000 - $2499 (15%)

$500 - $999 (15%)

$100 - $499 (41%)

< $100 (15%)

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Chart based on 39 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

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.

66824 mi US $121	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)
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

41000 mi

US $200

drive belt replaced showed signs of wear

144500 mi

US $3000

Timing Belt, Plugs, Discs, Pads and tires

56526 mi US $329	REPLACE MASS FLOW SENSOR
56526 mi US $100	REPLACE MAF SENSOR ($652) (WARRANTY) $100 DEDUCTABLE
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
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)
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
84800 mi US $780	REPLACE FRONT MOTOR MOUNT, $740. INSURANCE PAID LESS $100.00 DEDUCTABLE.
87000 mi US $100	OIL LEAK. REPLACED VALVE COVER GASKET. $314 (PARTS 80 LABOR 234)
87800 mi US $479	OIL LEAK. SEAL ON BANK 1 FRONT SENSOR REPLACED. PARTS 11 LABOR 236
92300 mi US $1182	COOLANT TANK REPLACED
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
98600 mi US $520	REPLACED ENGINE SPEED SENSOR REPLACED ENGINE SPEED SENSOR
99000 mi US $1030	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.

81600 mi US $700	leaking cylinder head gaskets causing burning smell
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.
84300 mi US $1800	heater core clogged - low heat output
109000 mi US $350	Joint near catalytic converter corroded and leaking, with load noise
121000 mi US $400	valve cover gasket, attempted to fix by tightening bolts
123000 mi US $1800	valve cover gasket replacement

101000 mi US $4250	coolant leak requiring engine removal to get to the leak
131000 mi US $225	cooling overflow tank leaking

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80058 mi US $50	Check engine light on - replaced air mass sensor
91000 mi US $275	Crankshaft position sensor failed

91900 mi

US $900

Fuel Pump Failed and Oxygen Sensor Failed

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.
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.