| 1 | 0 | 3 | 4 | 3 | 4 |
2001 Audi A6 / S6 / RS6 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.
2001 Audi A6 / S6 / RS6 engine repair cost distribution
$2500+ (7%)
$1000 - $2499 (19%)
$500 - $999 (20%)
$100 - $499 (28%)
< $100 (26%)
Chart based on 146 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2001 Audi A6 / S6 / RS6
Engine not specified
| 93000 mi US $800 |
Turbos went out. Also got timing belt replaced. |
| 218000 mi | the coolant reservoir tank started to leak |
| 99381 mi US $717 |
repl both mufflers Repl cat. converter, scanned for error codes repl intake manifold damaged by overheating due to clogged cat converter |
| 145000 mi US $3000 |
oil cooler radiator leak valve camshaft tensioner code...did not fix yet |
| 150000 mi US $500 |
low oil pressure light came on....engine not fixable, deceased at 160,000miles |
2001 Audi A6 / S6 / RS6 4dr Wagon
200-horsepower 2.8L V6 5-speed shiftable automatic AWD
| 90000 mi US $50 |
Reflash for ECU... Oxygen sensor reading too high. Replaced faulty coolant temperature sensor. |
| 93000 mi US $350 |
Coolant hose to the throttle body was broken. Both feed and return lines replaced. |
| 107000 mi US $1100 |
Two of the four oxygen sensors were bad, and the other two were performing substandard. Replaced all four oxygen sensors. |
| 125000 mi US $150 |
Coolant expansion tank cap replaced. It was leaking coolant under pressurized condition. |
| 135500 mi US $50 |
O-ring for the coolant temperature sensor failed. |
| 95000 mi | Found and replaced broken coolant jug during routine timing belt/water pump replacement. |
| 108000 mi US $250 |
Valve gaskets were leaking, dripping oil onto manifold. |
| 134300 mi US $359 |
cam tensioner gasket and valve cover gasket to fix oil leak |
| 141700 mi US $200 |
rusty muffler |
| 86000 mi US $760 |
Water pump leak. |
| 98000 mi US $1300 |
Waterpump and thermostat leaking due to low quality parts of the previous timing belt job. |
| 116000 mi US $1159 |
Thermostat, O2 sensor, replaced serpentine belt, and new plugs n wires, |
| 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. |
| 79000 mi US $300 |
Thermostat |
2001 Audi A6 / S6 / RS6 4dr Sedan
turbocharged 250hp 2.7L V6 6-speed manual AWD
| 84000 mi US $2133 |
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)!! |
| 89000 mi US $1200 |
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. 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. |
| 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. |
| 111500 mi US $300 |
vacuum hose |
| 141000 mi US $350 |
Fuel injector o-rings replaced. |
| 151000 mi US $1039 |
Clutch started slipping under mild accelaration. Original clutch, lasted 150,000 miles. Replaced clutch and resurfaced dual mass flywheel. |
| 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. |
| 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. |
| 189000 mi US $250 |
Replaced torn throttle body boot and commonly problematic "spider hose" PCV system with new silicon replacements. |
| 192000 mi US $120 |
Bank 1 ICM causing severe misfire in one cylinder. Verified by swapping ICM's, misfire followed. Replaced bad ICM. |
| 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. |
| 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. |
| 85000 mi US $40 |
Minor flat spots under acceleration. Replaced fuel filter and washers. Loss of coolant. Fixed by replacing expansion tank cap. |
| 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. |
| 142000 mi US $300 |
Passenger side pre-cat O2 sensor replaced |
| 146000 mi US $800 |
Replaced engine/motor mounts. |
| 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. |
| 154000 mi US $710 |
Fuel pump failed |
| 158000 mi US $197 |
replaced 2 spark coils and left bank ignition control module |
| 162000 mi US $5 |
Coolant. Fixed with a bottle of Bar's Leak. |
| 172000 mi US $1700 |
replaced bank 1 pre cat O2 sensor Coolant leak. fixed by adjusting hose clamp |
| 172700 mi US $2100 |
replaced water pump |
| 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. |
| 180000 mi US $300 |
Needed new MAF sensor and ignition module |
| 185000 mi US $5 |
plastic coolant hose tee broke and was replaced with a brass tee. |
| 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. |
| 225000 mi US $120 |
replaced 2 spark coils |
| 230000 mi US $100 |
oil leaks fixed by replacing valve cover gaskets and cam chain tensioner gaskets/seals. |
| 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. |
| 277000 mi US $45 |
MIL on. Cylinder 4 misfire. Replaced spark coil. |
| 143000 mi US $1500 |
Water pump needed to be replaced. |
| 102000 mi US $404 |
Auxiliary water pump leaking. Common failure with this engine. |
| 106000 mi US $30 |
Coolant leak at temperature sender. Sender and O-ring replaced |
| 111000 mi US $35 |
Temperature sensor and O ring replaced due to coolant leak. |
| 123000 mi | Vacuum hose split causing check engine light |
| 124000 mi US $480 |
Leaking oil from cam seals - replaced and problem solved |
| 126000 mi US $10 |
Vacuum line failed. Repaired with shrink tubing |
| 132000 mi US $15 |
Vacuum hose leak |
| 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. |
2001 Audi A6 / S6 / RS6 4dr Sedan
turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD
| 109000 mi US $700 |
replace timing belt water pump and all components replace valve cover gaskets, tensioners and cam seals |
| 116000 mi US $270 |
Replaced failed secondary air injection pump |
| 140000 mi US $25 |
replaced thermostat housing |
| 118000 mi US $120 |
Fan on front of AC radiator/coil failed - started whining loudly. |
| 120000 mi US $1500 |
Auxillary Water Pump Failed - started leaking |
| 124000 mi US $1800 |
Radiator fan failed |
| 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. 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. |
| 142000 mi US $850 |
Some kind of timing sensor (cam sensor maybe) failed on both sides causing it to run very rough under throttle. |
| 157000 mi US $150 |
Oil pump failure Significant coolant loss--broken "t" fitting on hose to expansion tank. |
| 180000 mi US $950 |
Auxilliary fan working intermittantly. Replaced |
| 95000 mi US $1500 |
Replaced fuel line after discovering leak CEL caused by bad oxygen sensor in the catalytic converter |
| 100000 mi | Bad oxygen sensor when sold. |
| 106000 mi US $1000 |
replace valve cover gasket and cam plugs and cam adjuster seals. |
| 148000 mi US $1400 |
Water pump failed, leaking coolant. Replaced water pump, thermostat, timing belt, etc. |
| 122500 mi | Valve cover gaskets. |
| 141000 mi US $770 |
Valve cover gaskets and overhead cam seals replaced. Additionally coolant tank replaced. |
| 86000 mi US $435 |
cam seals and cam tensioners coolant auxilary pump turbo by pass valves |
| 86000 mi | Rollers. |
| 103000 mi | leaking thermostat housing |
| 108000 mi US $100 |
replaced transmission mounts replaced coolant temperature sensor |
| 220000 mi US $2500 |
Water pump |
| 84000 mi US $95 |
intermittent c.e.l. for oxygen sensors |
| 87000 mi US $900 |
Two bad oxygen sensors |
| 73000 mi US $2500 |
Coolant low warning light; supplemental water pump replaced. Timing belt replacement |
| 80000 mi US $2500 |
camshaft adjuster seals leaking |
| 127000 mi | 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. |
| 127800 mi US $3695 |
Replaced left and right engine mounts for about 60% of dealer's estimate. |
| 153000 mi US $2018 |
1 of 2 catalytic converters replaced, 1 of 4 oxygen sensors replaced to pass emissions inspection. |
| 187000 mi US $1174 |
Coolant leaking, replaces secondary water pump and intake gaskets |
| 200000 mi US $812 |
Car wouldn't start, jump attempted. Towed to shop and bad fuel pump was replaced. |
| 128000 mi US $1800 |
Replaced auxiliary coolant pump. |
| 50000 mi US $464 |
Oxygen sensor failed |
| 56000 mi US $700 |
Replaced viscous coupling in engine driven cooling fan, clean debris from between A/C condenser and radiator |
| 60900 mi US $950 |
Aux water pump leaking, Coolant expansion tank leaking. R and R both, flush, new G-12 coolant |
| 63000 mi US $2700 |
Elective service to repair numerous small oil leaks in engine top-end and transmission pan, transmission fluid service. |
| 63625 mi US $426 |
Replace rib belt and tensioner Replace rib belt and tensioner |
| 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. |
| 65000 mi US $3000 |
Supplemental water pump Fluid filled engine mount. Warranty would only cover 20% of dealer estimated cost Oil return line on turbo - gasket replaced |
| 74000 mi | Car stalled during high speed pass and engine acceleration resumed when backed off accelerator Oil leak from cam adjuster covers Upper motor gasket set installed |
| 86000 mi | Diagnostics and replacement of ignition control box |
| 93000 mi US $65 |
coolant tank replaced along with T connector for hoses connected to coolant tank |
| 102000 mi US $1100 |
control module and O2 sensor replaced. Brake fluid replaced |
| 102500 mi US $1700 |
Tensioner for timing belt failed. Replaced timing belt, tensioner and water pump. |
| 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. |
| 105000 mi | Additional oil leak. Cam plug replaced |
| 105000 mi | Oil leak from turbo housing. Did not attempt repair. Traded car in. |
2001 Audi A6 / S6 / RS6 4dr Sedan
300-horsepower 4.2L V8 5-speed shiftable automatic AWD
| 170000 mi US $800 |
Changed the Oxygen sensor, cost just under 800 dollars. |
| 115600 mi US $200 |
Replaced expansion tank |
| 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. |
| 129000 mi US $800 |
Timing belt replacement as well as two noisy accessory rollers and belt. |
| 157000 mi US $700 |
The fuel pump was replaced. |
| 162000 mi US $264 |
Bad valve cover gasket. Bad timing chain tensioners. |
| 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. |
| 125000 mi US $600 |
Accessory Belt idler pully seized and came off. |
| 102390 mi US $1188 |
Replaced engine oil cooler seal, change oil |
| 94063 mi US $1006 |
Oxygen sensor, oil change |
| 119048 mi US $950 |
EVAP canister & c-valve replaced |
| 132000 mi US $500 |
Replaced leaking/cracked antifreeze liquid tank $200 |
| 141000 mi US $700 |
Oil leak caused by non-dealer incompetence. Replaced oil & filter. Leak corrected. |
| 144000 mi US $175 |
Replaced coil |
| 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. |
| 152000 mi US $250 |
Replaced fuel pump. Failed pancake valve |
| 159000 mi US $10 |
Replaced vacuum lines. CEL on. |
| 159000 mi | CEL on for vacuum leaks or EGR issues. Gah.... |
2001 Audi A6 / S6 / RS6 4dr Sedan
200-horsepower 2.8L V6 5-speed shiftable automatic AWD
| 75220 mi C $1000 |
Supposedly over-filled tank - led to a complete replacement of the overflow system and resetting of the sensor software. |
| 79000 mi US $502 |
Engine breather clogged. |
| 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. |
| 125000 mi US $2000 |
Catalytic converters bad when sold. |
| 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. |
| 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. |
| 148000 mi US $350 |
Water pump was leaking-replaced |
2001 Audi A6 / S6 / RS6 4-door
turbocharged 6-cylinder manual AWD
| 59000 mi US $655 |
Vaccum leak. Loss of idle and power brakes. Simple repair |
2001 Audi A6 / S6 / RS6 4-door
turbocharged 6-cylinder automatic AWD
| 80000 mi | Coolant sensor |
| 56000 mi US $218 |
Bad EGT sensor driver's side. |
| 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. |
| 74000 mi US $350 |
O2 sensor |
2001 Audi A6 / S6 / RS6 4-door
8-cylinder automatic AWD
| 60000 mi US $450 |
Replaced engine oil gasket that was leaking |
| 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. |
| 120000 mi US $378 |
Engine mounts replaced. |
2001 Audi A6 / S6 / RS6 4-door
6-cylinder automatic AWD
| 114000 mi US $550 |
Replaced leaky seals. |
| 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. |
| 88000 mi | catastrophic engine failure, cam timing lost, valves broken, pistons damaged, extensive damage still under analysis for extent of repair |
| 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). |
| 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. |
| 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. |
| 91000 mi US $470 |
Check Engine Light on: fully test system, replace purge valve & retest. |
| 102000 mi US $799 |
Replaced 2 Oxygen Sensors which were giving Check Engine Light |
| 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. |
See TrueDelta's information for all Audi models.
