| 1 | 0 | 3 | 4 | 3 | 4 |
2003 Audi A6 / S6 / RS6 repairs by problem area
Engine (39%)
Transmission and Drivetrain (22%)
Brakes and Traction Control (4%)
Suspension and Steering (16%)
Electrical and Air Conditioning (12%)
Paint, Rust, Leaks, Rattles, and Trim (3%)
Other (4%)
Chart based on 245 repairs.
2003 Audi A6 / S6 / RS6 engine repair cost distribution
$2500+ (8%)
$1000 - $2499 (17%)
$500 - $999 (13%)
$100 - $499 (36%)
< $100 (26%)
Chart based on 84 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2003 Audi A6 / S6 / RS6
Engine not specified
| 43000 mi | misfire in one cylinder. changes plugs and one coil pack, but didn't help |
2003 Audi A6 / S6 / RS6 4dr Wagon
340-horsepower 4.2L V8 5-speed shiftable automatic AWD
| 107000 mi US $100 |
Valve cover gaskets replaced All vacuum tubing replaced |
| 121000 mi US $500 |
1 New fuel injector Water Pump Gates Racing timing belt L&R camshaft adjuster pads Valve cover gaskets |
| 105000 mi US $900 |
Timing belt replaced. Water pump (in concert with timing belt) |
| 117000 mi | coolant reservoir was leaking. |
| 67000 mi US $7000 |
Vacuum check valve not covered by my Extended Warranty $430.00 |
| 99600 mi C $2200 |
Replaced primary cats |
| 102380 mi C $2600 |
Loss of power, smoke from exhaust. Intake Manifold Adjuster replaced. Timing Belts also replaced while in shop. |
2003 Audi A6 / S6 / RS6 4dr Wagon
220-horsepower 3.0L V6 5-speed shiftable automatic AWD
| 54000 mi US $120 |
Diagnose Check engine light; vaccum system problems Valve covers leaking oil, both sides Fuel consumption is averaging 11 mpg. |
2003 Audi A6 / S6 / RS6 4dr Wagon
| 121520 mi €250 |
Key would not turn starter - required ignition housing replacement in steering wheel |
2003 Audi A6 / S6 / RS6 4dr Sedan
turbocharged 450hp 4.2L V8 5-speed shiftable automatic AWD
| 145700 mi US $4300 |
Auxiliary radiator leak. |
| 154400 mi US $1850 |
O2 sensor code and check engine light. Replace O2 sensors. |
2003 Audi A6 / S6 / RS6 4dr Sedan
turbocharged 250hp 2.7L V6 6-speed manual AWD
| 67500 mi US $1400 |
Cracked breather tube |
| 185700 mi US $2400 |
CEL codes for bad catalytic converters. Replaced both cats with non-oem parts and replaced all four O2 sensors. |
| 207700 mi US $87 |
Power steering whining. Replaced fluid. CEL for secondary air injection unit. Disconnected SAIU. CEL still sometimes lit for O2 sensors. |
| 229300 mi US $820 |
Car was starting hard and finally stalled when driving. Replaced fuel pump. |
| 238000 mi | Leaking turbos. |
| 76000 mi US $380 |
replaced worn serpentine belt and tensioner. Tensioner was getting noisey |
| 125800 mi US $1500 |
timing belt and valve cover gasket and seal maintenance. there was some weeping in the valve cover gaskets/seal areas, but nothing serious...it was mostly preventative since i was already doing a comprehensive timing belt service on the front of the motor |
| 133000 mi US $100 |
Oil pressure sensor was bad...common problem for VW/Audi...so I replaced it and the oil level sensor as well. |
| 50000 mi US $1400 |
I received a check engine light for coolant temperature too low. The shop replaced the coolant temp sensor earlier which did not fix the problem. The next solution was to replace the thermostat which was likely stuck open. |
| 74300 mi US $145 |
Exhaust clamps broke and pipe became detached. Had to replace with new clamps. |
| 76000 mi US $900 |
Auxiliary water pump replaced which requires removal of intake manifold to access. |
| 81000 mi US $750 |
Engine misfiring due to faulty ignition coils. Replace 5 coils and 6 spark plugs. Valve cover seals leaking. Replaced all seals. |
| 81300 mi US $900 |
Coolant leak discovered while replacing valve cover gaskets. Required new water pump (2nd one in last 4 years.) |
| 90500 mi US $480 |
Crank Position Sensor failed leaving car unable to start. Required tow to repair shop. |
| 94300 mi US $1100 |
Exhaust rusted out at center resonator. Replaced resonater/x pipe. |
2003 Audi A6 / S6 / RS6 4dr Sedan
turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD
| 145080 mi | I had a jerking when you accelerate sometimes then I replaced the front engine mount |
| 52288 mi US $82 |
Valve Cover Gaskets replaced by owner. Cost $82 for both gaskets and a tube of black RTV sealant. Repair time approximately 5 hours. |
| 84000 mi US $120 |
Electric after-run coolant pump replaced after a colant leak from it was discovered. |
| 74000 mi US $250 |
Replace B1S1 Oxygen Sensor |
| 88000 mi US $154 |
A knocking noise from the front of the engine was troubleshot and no trouble was found. Initially the t-belt tensioner and cam tensioner were suspected. |
| 103300 mi US $305 |
Bad Engine Cooling Temperature sensor and bad O2 sensor. |
| 147000 mi US $650 |
Oil leaks |
| 149000 mi US $110 |
Secondary Air Injection pump failed. Had pump rebuilt for 95.00. |
| 178000 mi US $90 |
Replaced Secondary Air Injection pump and pipe |
| 64000 mi US $50 |
Auxiliary water pump leak repaired under CPO. |
| 65500 mi US $50 |
All oil seals including valve cover, cam, and cam tensioners replaced due to leaks under CPO. |
| 83500 mi US $50 |
One motor mount replaced under CPO due to fluid leakage. |
| 105000 mi US $250 |
Oil leak at the two seals on the back side of the driver's side cylinder head fixed. They resulted from a frozen PCV system back in December and problem was allowed to progress to the point it could be diagnosed. |
| 105800 mi US $230 |
Oil leak at the two seals on the back side of the driver's side cylinder head fixed. They resulted from a frozen PCV system back in December and problem was allowed to progress to the point it could be diagnosed. |
| 120000 mi US $240 |
Car was using oil due to plugged PCV hose system so it the hose system was replaced. During removal, the N75 valve was damaged, so it was replaced also since it frequently fails. PCV hose $180 at dealer, N75 valve used $60. Car was using oil due to plugged PCV hose system so it the hose system was replaced. During removal, the N75 valve was damaged, so it was replaced also since it frequently fails. PCV hose $180 at dealer, N75 valve used $60. |
| 126000 mi | Secondary Air Pump is not working in the cold weather and throwing codes. I unplugged the pump for now and will remove and rebuild in the spring. Common problem when the combi valve lets exhaust gas into the pump and it condenses & rusts. |
| 97000 mi US $500 |
Thermostat and water pump from last timing belt job were leaking after 35k miles. Replaced them both and all other timing belt parts, along with all oil seals. Poor design that a thermostat job means removing the timing belt system. |
| 140000 mi US $75 |
Engine mounts were past their prime and creating vibrations in the cab. One was good because it was only 75k miles old but the other was factory. Huge job to DIY, would recomend paying someone to do it. |
| 36000 mi US $120 |
Valve cover gaskets |
2003 Audi A6 / S6 / RS6 4dr Sedan
300-horsepower 4.2L V8 5-speed shiftable automatic AWD
| 69940 mi A $550 |
leaking rocker cover, cracked fuel tank. All need to be replaced at next service. |
| 72000 mi A $5800 |
Replace cracked fuel tank (warranty) Replace rocker gaskets Replace rat-eaten vac pipe Replace windscreen wipers Replace electronic engine mount Repair 3 buckled wheels |
| 73980 mi A $400 |
Replaced PCV valve. Tied off broken manifold actuator link to allow. Tied manifold barrel arm to idle position. Parts ridiculously expensive in Australia. sourcing parts in Europe. Care remains drivable. |
| 75220 mi A $400 |
Plastic vacuum manifold flap actuator linkage broken because of seized inlet manifold flaps. Flaps and and spindle cleaned and lubricated. New linkage manufactured. $400. Dealer said had to replace parts for $7000. |
| 84940 mi A $4000 |
Replaced leaking rocker covers. |
| 89900 mi A $50000 |
Replace fuel pump. Car ran roughly and later would not start. |
| 148000 mi US $1580 |
Leaking Water pump |
2003 Audi A6 / S6 / RS6 4dr Sedan
220-horsepower 3.0L V6 6-speed shiftable CVT FWD
| 78000 mi US $1200 |
Engine and transmission mounts replaced. |
2003 Audi A6 / S6 / RS6 4dr Sedan
220-horsepower 3.0L V6 5-speed shiftable automatic AWD
| 50000 mi US $50 |
have replaced 4 bad coils under warranty (Price is warranty deductible) date and mileage is sort of middle range- done over period of 2.5 yrs |
| 84000 mi US $1264 |
Valve cover gasket blew- serious oil leak- towed to shop- covered under cpo..There was NO indication on oil pressure or temp guage... Coolent temp sensor went at the same time, so there was no indication had overheated! (I know it was at that time because engine never indicated that it warmed up after 25 mile ride... Timing belt, water pump, tensioner pulley. Dealer reported maint. sched had been reduced to 70000 miles because of failures at previous 105000 suggested interval-He led me to believe that CPO would not cover the 105K interval. |
| 86000 mi US $53 |
Check engine light-dealer said code indicated bad cat-but that some vacuum hoses damaged MAY be problem-replaced hoses under CPO and reset light-also suggested injector and throttle body cleaning- (done in following month) light not back on yet. |
| 89000 mi | check engine light code P0441-002, evap emission control system incorrect flow lower limit exceeded |
| 30000 mi US $250 |
Engine bay is vibrating. Dealership said something got loose. (Will add more info when I get papework) |
| 44000 mi US $175 |
Bad coil pack cylinder #3 |
| 94240 mi C $1300 |
Changed timing belt, thermostat, water pump |
| 96100 mi C $300 |
changed temp sending units |
| 99200 mi | Check engine light on repeatedly. Throwing an EVAP code. doesn't affect driveability, so will be repaired at a later date. |
| 104160 mi C $250 |
EVAP code , traced to purge valve, bought part just not installed |
| 104780 mi C $168 |
replaced evap purge valve. |
| 119660 mi C $1500 |
Catalytic failure left side, replaced cat. Replaced O2 sensors as well. Right side sensors are intermittently responding. |
| 91000 mi US $1400 |
Huge oil leak, stuck/frozen crankcase vent valve (told because I didn't drive the car enough to heat up the valve area). Oil leaked out of front of pass side cam cover. With engine apart, had timing belt, water pump, rollers, serp belt replaced add $1200 Serp belt roller bearing failed one week later. Car inoperable. Had to tow 90 miles at my expense for warranty repair. |
| 100000 mi US $200 |
Serpentine belt tensioners replaced with new belt Feb 09. Failed 1 week later with immobility. Replaced under warranty. Serp belt "fell off" Mar 10, with tensioner missing or defective. Non dealer shop placed 10mm bolt, saw belt fragments on flywheel |
| 116000 mi US $768 |
Pre-cat oxygen sensor |
| 70000 mi US $250 |
Cylinders 1 & 4 ignition coils went bad. I tried replacing spark plugs first, but did not cure the problem. |
| 63000 mi | Replaced 5 bad coil packs on Audi A6 3.0 Now exhaust extremely hot glowing bright red at night melting rear bumper cover near exhaust tips Service engine lite flashing rapidly poor fuel economy less than 8.5 miles gal. dealer said working in spec. Car leaking expensive fuel on the ground if filled pas 3/4 tank of fuel was told they al do that from expansion.I worry about my wife driving with red hot exhaust and fuel spilling out with kids in car |
| 64000 mi US $350 |
leaking fuel tank was told this is normal if tank filled past 34 |
| 65300 mi | 4 more coil pack failures. Replaced and now runs, but CEL now on all the time. |
| 73780 mi C $60 |
exhaust, a joint was loose between the two extremities just replace the joint. |
| 83000 mi US $120 |
replaced the drivers front O2 sensor. had a CEL and couldn't get it inspected until fixed. |
| 125000 mi US $50 |
Had to replace the valley pan gasket. was leaking |
| 132100 mi | Exhaust repaired |
| 140000 mi | exhaust flex pipes |
| 140000 mi US $400 |
Crank seal and timing belt replacment |
| 148000 mi US $200 |
Misfire in cylinder number 2. Blown head gasket. |
| 153000 mi | Oil pressure warning light goes on intermittently. Oil level is OK. |
| 125000 mi US $2500 |
Replaced water temp, oil temp, oil level sensors. |
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