| 1 | 0 | 3 | 4 | 3 | 4 |
2005 Audi A6 / S6 / RS6 repairs by problem area
Engine (38%)
Transmission and Drivetrain (4%)
Brakes and Traction Control (6%)
Suspension and Steering (12%)
Electrical and Air Conditioning (29%)
Paint, Rust, Leaks, Rattles, and Trim (6%)
Other (5%)
Chart based on 247 repairs.
2005 Audi A6 / S6 / RS6 engine repair cost distribution
$2500+ (6%)
$1000 - $2499 (18%)
$500 - $999 (16%)
$100 - $499 (28%)
< $100 (33%)
Chart based on 80 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2005 Audi A6 / S6 / RS6
Engine not specified
| 111600 mi $150 |
Ignition box failure cylinder 3 |
2005 Audi A6 / S6 / RS6 4dr Wagon
255-horsepower 3.1L V6 6-speed shiftable automatic AWD
| 107500 mi $165 |
Car didn't recognize key. Towed it to dealer who told me that it needs a new transponder, the entire steering column needs to be replaced! Costs at least $2000. Clearing of faultcodes made all work OK since, hope it doesn't come back! |
| 129580 mi | Also the steering column actuator is faulty, symptoms are that you can't turn on the ignition or start the car. Happens from time to time, you don't know when. My solution is to leave the key in the ignition and lock the car with the spare key, or reset the fault code with VCDS. Needs to replace the whole steering column (including the anti-theft box), costs around 2500 USD in an Audi workshop (and around 1500 in an non-Audi workshop). |
2005 Audi A6 / S6 / RS6 4dr Sedan
335-horsepower 4.2L V8 6-speed shiftable automatic AWD
| 141000 mi | Manifold was replaced but it did not correct the problem, so I was not charged anything. |
| 141000 mi | Problem with engine related to manifold never fixed. |
| 149000 mi | timing chain |
| 82000 mi US $1300 |
car sputters when accelerating,slight cliking outside car when turning the wheel,car vibrates when turning very sharp or doing a uturn |
| 50061 mi US $708 |
Valve Cover Gasket Valve Cover Gasket |
| 64740 mi | Takes a long time for engine to reach operating temperature. Shop didn't find any problems as the engine was already warm by the time it was driven to the shop. |
| 57940 mi | Engine would take a long time to reach the normal operating temperature. Thermostat has been replaced. |
| 114500 mi US $500 |
Very slow leak in tube caused coolant to drip onto main belt, both needed to be replaced. |
| 174000 mi US $3000 |
Timing chain tensioner failure, caused bent cam chain to skip tooth, bent valves. |
| 175000 mi US $75 |
Engine Fan harness retainer broke, allowing wire to rub against alternator belt. Wires wore through, alternator belt damaged. |
| 183000 mi US $205 |
Bank 1 Oxygen sensor |
| 202000 mi US $163 |
Oil check valves under intake manifold were replaced, along with all gaskets for intake. |
| C $250 | esm failure |
| 141200 mi US $780 |
Coolant leak in the radiator |
| 148200 mi US $2390 |
High oil consumption. They replaced the valve cover gaskets, it helped some but I'm still going through oil faster than I should. Engine mounts broken, caused warning lights and rough running engine |
| 162000 mi US $866 |
Oil leak in oil cooler, possibly fixed. Replaced coolant reservoir. Issues with timing / check engine light. Light is off for now, but timing issue persists. |
| 89000 mi US $1300 |
Car stalled and would not start. Required new fuel pump and emissions sensor |
| 72000 mi | Oil leak detected on valve cover. Was told during 65K maintenace that was catetory 3 and had to be developed to category 1 in order to be covered under CPO. Oil loss increased and so took it in and was repaired by replacing gasket. |
| 86000 mi | Check engine light came on. Reset ECU with VAG-COM at the dealer and problem dissappeared. Computer was showing lean fuel to air mixture but could not fine cause of problem |
| 96000 mi US $300 |
Check engine light on. Intake vacuum leak found. Intake hose torn found through visual inspection. Part replaced and error codes reset. |
2005 Audi A6 / S6 / RS6 4dr Sedan
255-horsepower 3.1L V6 6-speed shiftable automatic AWD
| 60000 mi US $750 |
Replace fuel pump |
| 118000 mi US $145 |
I don't know what subsystem was involved because the issue is an intermittent stalling problem which the shop could not reproduce and therefore could not diagnose or repair. The $145 I paid was for utterly unsuccessful diagnostics. |
| 131634 mi US $312 |
Check Engine light went on. My OBD II code scanner showed code P2404, which indicates that the sensor in the EVAP leak detection pump system is returning a value that is out of the acceptable range. Technician at the shop investigated and determined that the EVAP system's purge valve had failed. The valve was replaced with a new one, but I was warned that once this problem was cured, one or more other EVAP system faults might become apparent. No additional issues have surfaced yet. |
| 131842 mi US $609 |
Check Engine light came on. I checked with OBD-II scanner and found code P0455-- EVAP emissions control system leak detected (no purge flow or large leak). The shop determined that the EVAP system's leak detection pump had failed, so they replaced it. |
| 132064 mi | Check Engine light wen on again. My OBD scanner showed me that codes for the Evap Control Purge Valve and the Evap Control Leak Detection Pump, previously present separately on recent occasions, were now BOTH present, even though both components had been replaced. The technician could detect no other issues and cleared the codes. He told me that he HOPED these codes had popped up as a result of incomplete clearing of codes after the most recent repair. There was no charge, since the recent Evap Control System repairs were under the shop's repair warranty. In the sixty or so miles I have driven since I got the car back, no warnings have appeared. |
| 106000 mi US $4341 |
Diagnosed with a stretched timing chain. Replace all chains, sensors, pulleys and gaskets. |
| 35000 mi US $1030 |
Temperature sensor failed causing engine to run lean and overheated catalytic converter Coolant leak at one of the phalanges. Belt tensioner failing causing serpentine belt to rattle. |
| 59000 mi US $125 |
found scrub pad in throttle body from previous service |
| 106000 mi US $1000 |
Leaking upper radiator hose. valve cover gaskets leaking |
| 45000 mi | Smoke from the front of the car. Oil cover not put properly from the last oil change and oil was leaking out and spilling on engine. |
| 93000 mi | Failed Fuel injector, cyl 3 |
| 49500 mi | Replaced Catalytic converter |
| 76260 mi C $160 |
Leaky cooling hose. |
| 83000 mi US $807 |
Also had coolant leaks fixed and power steering clamp replaced. Ended up selling the car soon after as it was costing too much. Would never buy an Audi again. |
| 123000 mi US $15 |
Vacuum hose broken due to age and heat (hard plastic). Replaced with aftermarket vacuum hose from Auto-zone. |
| 127000 mi US $5000 |
rebuilt engine. |
| 141000 mi US $6000 |
timing chains failed. Destroyed engine. rebult engine. Chains failed again. Scrapped car. Will not ever buy another Audi |
| 100000 mi US $225 |
CEL since 2010. Tested both the LDP and the vacuum lines, narrowed it down to an ECU. Exchange ECU with a used ECU and code the ECU to the car. |
| 115600 mi US $170 |
valve cover gaskets and valve cover bolts |
| 67000 mi US $140 |
Replaced fuel pressure sensor and fuel filter, problem still exists. |
| 68000 mi | Low pressure fuel pump replaced. Cold start missfire CEL and rough idle during cold weather start up sometimes the car would die. Dealer said the car had carbon build-up on the intake valves, dealer suggested using seafoam instead of taking apart intake and manually clean I elected to try the seafoam first and it helped so for now I will not have the intake valves cleaned by the dealership. |
| 77000 mi US $45 |
Fuel pump had to be replaced again. Fuel filter was also replaced. Tech said the fuel filter was clogged causing the fuel pump to fail. |
| 85600 mi US $1400 |
The car had the intake removed and excessive carbon deposits removed from the intake valves. Vacuum evac pump replaced Spark plugs replaced |
| 90000 mi US $1100 |
The car was in for to both a high pressure fuel pump replacement and a low pressure fuel pump replacement |
| 62000 mi US $150 |
Ignition coil #5 replaced. |
| 78600 mi US $765 |
A valve seal (driver's side cylinder head) suddenly started leaking and the engine began to smoke - while my car was in the shop! Replaced three seals. |
| 109000 mi US $2500 |
Head gasket Replace fuel pump and filter Replace water pump and timing belt Replace surpentine belt and roller |
| 125000 mi US $235 |
Vibration mount had deteriorated. Replaced. |
| 90100 mi US $1950 |
95000 mile service. Upon pickup heard tapping under hood at right side head. Reported to dealer and was told to drive it and it would go away. Towed to dealer with no start. Timing chain tensioner failed right side cam skipped timing. Towed to dealer with no start. Timing chain tensioner failed right side cam skipped timing. |
| 72000 mi US $50 |
1. leak detect sensor replaced 2. vacuum hose replaced 3. engine control module replaced (root cause) |
| 114000 mi US $1900 |
Multiple check engine codes for cylinder misfires and cam advance. Dealer replaced throttle body and 2 Cam Adjusters. Check engine light remains on after services, need to replace timing chain (a 25+ hr labor) job. will not replace. |
| 68200 mi C $750 |
Fuel injector #2 failed, needed to be replaced. Apparently it's an AUDI "blocked" part. This means that the replacement must be done at a dealership (can't be taken to a 3rd party garage) |
| 68820 mi C $1700 |
Access/Start Control unit was fried. The car would not start. Part had to be ordered from Germany. Audi of Canada refuses to acknowledge that the TSB should have been covered under warranty as it was a known issue for at least 2 years. |
| 36895 mi | Engine light is on, traced to a faulty key tumbler.Replaced, also found sporadic misfires in cylinder 1 and 5. Switch may have been the cause for misfire. Start switch inop at times. Replaced |
| 38147 mi | Engine light is on. Vehicle misfiring due to faulty intake system, used fuel injection service to clean intake system. |
| 40576 mi | Engine light ON. TSB 2011719/6 replaced all lifters and rocker arms. The symptoms were excessive cold start misfires fault codes. Engine light goes on and off. Fault codes for ramdom multiple misfires. Factory service bulletin ordered all rocker arms,lifters and corresponding gaskets replaced. 3 spark plugs replaced. Hope the misfire problem has gone away! |
| 42486 mi | Timing Chain Cover flared in right side causing to leak oil which dripped into the exhaust creating smoke and bad odor.Cover was replaced by dealer. There was an update to the software, but dealer did not install because was not part of warranty ($250) |
| 46000 mi | More problems with engine light coming on. Coils are supposed to be replaced by manufacturer, but owner needs to wait for call from dealer. Car is out of warranty if yellow light is due to another reason owner will be charged. Had enough of Audi!!!!! |
| 57000 mi US $220 |
Intake manifold removed, many parts replaced due to continuos engine misfiring, this problem is occurring since car had 27000 miles, coils were never replaced even when Audi ordered to do so by dealer. |
| 60000 mi US $632 |
They found several problems inside engine like broken valve springs. They replaced quite a few parts and rebuilt half of the engine. I only paid about 15 percent of the total. Finally after two years the car is performing well. |
| 95000 mi US $200 |
Right DRL out, and check engine light due to evap leak. |
| 56000 mi US $825 |
car was diagnosed with a #3 fuel injector that was stuck wide opened, and one side of air intake manifold was not opening/closing correctly.fuel injector had to be replaced. also had all spark plugs replaced. primary cost of repair went labor. ouch! |
| 106000 mi US $2000 |
In-take manifold and housings malfunction and to be replaced. |
| 142000 mi US $100 |
Engine head valves were leaking oil for about a year. Replaced valve gaskets and spark plugs on both sides. |
| 151000 mi US $10 |
There was a vacuum leak causing check engine light to come on. Check and saw a section of vacuum hose that needed replacing. That did the job. |
| 160000 mi US $700 |
Coolant leaking at air cooler-engine connection due to wore gasket. Oil leaking from driver side at the back of engine. Cause was due wore sealant in time chain caps. Caps removed and added new sealant. |
| 58900 mi €110 |
Throttle valve control problem . P1545 |
| 63100 mi | Throttle valve control unit replaced part no Ae4015950j |
| 53000 mi US $400 |
Oil leak, check engine light. Had to return it again because they did not completely fix oil leak. |
| 105500 mi US $2100 |
Engine light on. Dealer said they fixed it, but several days later the light came back on. Hope it's not the transmission. Probably the gas tank, which costs around $2,100. (This possibility was suggested back in 2014.) Update: light later went off again and stayed off for a while. |
| 116000 mi | Engine light is back on, the car is shaking. Went to the dealer/repair and they told me it would cost 15,000 for a new engine or get a new car. Furious, I took the car to a repair shop near my home that specializes in foreign cars. They will be looking at the problem next week. The car has been shaking and engine light comes on. The second shop also says a new engine is necessary, but would not make financial sense. So time for a new car. Will be parting the Audi out or donating it. |
2005 Audi A6 / S6 / RS6 4-door
turbocharged 6-cylinder manual 2WD
| 114000 mi £1000 |
Needed a new Clutch and Multi Flywheel |
| 118000 mi £345 |
Something to do with emission control. |
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