| 1 | 0 | 3 | 4 | 3 | 4 |
2006 Audi A6 / S6 / RS6 repairs by problem area
Engine (31%)
Transmission and Drivetrain (5%)
Brakes and Traction Control (6%)
Suspension and Steering (16%)
Electrical and Air Conditioning (31%)
Paint, Rust, Leaks, Rattles, and Trim (7%)
Other (4%)
Chart based on 265 repairs.
2006 Audi A6 / S6 / RS6 engine repair cost distribution
$2500+ (12%)
$1000 - $2499 (15%)
$500 - $999 (14%)
$100 - $499 (26%)
< $100 (34%)
Chart based on 74 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2006 Audi A6 / S6 / RS6
Engine not specified
| 85700 mi US $300 |
Metal fragments found in engine. Engine replaced under extended warranty |
2006 Audi A6 / S6 / RS6 4dr Wagon
255-horsepower 3.1L V6 6-speed shiftable automatic AWD
| 34000 mi | CEL came on during road trip. Called dlr. Drove 60 miles to dlr. Coil packs replaced under recall at no cost within 1.5 hours. Loaner given for trip to lunch stop. Car repaired, runs fine 10 days and 400 miles later. |
| 87000 mi US $300 |
timing chain cover gaskets, both valve cover gaskets, brake vacuum pump, air and cabin air filters replaced vacuum lines |
| 80600 mi | valve cover gasket |
| 119660 mi C $250 |
Spontaneous rupture of coolant hose from reservoir to radiator. |
| 150660 mi C $933 |
Check engine light indicated that the high pressure fuel pump was not achieving correct specifications. This had illuminated 4 months earlier and was reset. But light recurred after several weeks. |
| 151360 mi C $380 |
High pressure fuel pump was replaced. A week later, engine stalled several times without check engine light illuminating. Mechanic replaced both high pressure (again) and low pressure fuel pumps because uncertain of the true culprit. |
| 111700 mi US $700 |
O2 sensor replaced. |
| 89600 mi $9000 |
Timing chains had stretched, and engine had to be pulled out to replace them. Additional parts around the chains were also replaced. |
| 80400 mi US $200 |
Valve cover gasket replaced, was leaking oil. |
| 121000 mi US $7915 |
Impending failure of timing chains, tensioners and guides required full tear-down of engine, removal of trans, and $4500 in parts for complete replacement of timing system. |
| 66000 mi US $75 |
10-15 sec "whoo" sound at first cold start of day. First replaced water pump, did not fix. Then replaced serpentine belt and greased idlers which solved problem. |
| 123000 mi US $165 |
Check engine light came on, OBD-II code P000068. Shop checked intake system for leaks (none found) and cleaned throttle body. |
| 130000 mi US $600 |
Evap emmission control system leak test pump failed causing CEL but no drivability problems. Pump $500, labor $100 |
| 134500 mi US $1800 |
Apparently the evap test pump (see previous entry) took the ECU with it when it failed as the CEL came back after 2k miles. Replaced ECU, CEL good so far (about 1k miles). |
| 100700 mi US $1100 |
Air pump that is part of emission control system and pressurizes fuel tank was replaced. |
| 102600 mi US $1200 |
To clear fault code ECM had to be replaced |
| 104000 mi US $400 |
Solenoid used to adjust variable valve timing failed |
| 122000 mi US $4000 |
Restore timing cover gaskets, replace vacuum pump, new brakes and rotors |
2006 Audi A6 / S6 / RS6 4dr Sedan
335-horsepower 4.2L V8 6-speed shiftable automatic AWD
| 73000 mi | Serpentine belt tensioner had seized. Oil burning at higher than normal rate. Discovered leak in head gaskets which were replaced. |
| 95000 mi US $750 |
Was also advised to replace one motor mount which has not been done yet. |
| 132000 mi US $125 |
Check engine light came on. Diagnoses was failing thermostat. Estimated cost to repair $650, so I decided to let it go for now since the light went off. |
| 144000 mi US $1050 |
Engine temp gauge would not move from C. Replaced thermostat and temp sensor. |
| 89240 mi C $470 |
Valve cover gaskets failed. |
| 156000 mi US $100 |
Car was misfiring, one of my coils was replaced. |
| 50000 mi | Replaced defective coil packs. |
| 61300 mi US $1350 |
Engine mount stop replaced. |
| 119000 mi US $75 |
Accessory belt snapped, hit and broke front main seal, resulting in battery losing charge and profuse oil leak in front of engine. |
| 121000 mi US $750 |
Fuel not reaching engine effectively. Replaced fuel pump, fuel suction jet pump, suction jet line, gaskets. |
| 34600 mi | warranty replace right fuel sending unit -- reporting fault codes, gauge cluster shows 0 fuel |
| 35500 mi US $18 |
replace fuel sending unit under warranty rotate tires perform 35K service under care plan |
| 74000 mi US $2200 |
Engine ran extremely rough, multiple cylinder misfire. Issue cleared while in shop. Valve cover gasket leak, leak not bad enough to warrant repair |
| 89000 mi US $700 |
Replaced valve cover gaskets, serpentine belt |
| 90000 mi | still leaking oil after valve cover gasket replacement, probably crank shaft gasket. Thermostat is stuck open and Camshaft position sensor threw an error too. Will repair in a few weeks. |
| 90900 mi | Gasket leak. Crankshaft position sensor. Thermostat stuck open. |
| 101000 mi US $600 |
Vacuum leaks from brittle rubber hoses |
| 72000 mi US $3400 |
New valve covers and spark plugs |
2006 Audi A6 / S6 / RS6 4dr Sedan
255-horsepower 3.1L V6 7-speed shiftable CVT FWD
| 132000 mi US $850 |
Replaced Valve cover gaskets at 66K miles and now at 132K replace again and left and right timing covers. All spark plugs replaced |
| 56000 mi US $100 |
Check engine light would go on intermittently. Repair shop pulled the codes and it showed a bad MAP sensor. MAP sensor was replaced. |
| 57800 mi US $90 |
Rattling noise from center dash when foot off gas - was exhaust hanger bracket became loose and exhaust tubing was rattling against car. |
| 55500 mi US $80 |
Engine light on (vaccuum hose separated and valve stuck open sporatically was result). |
2006 Audi A6 / S6 / RS6 4dr Sedan
255-horsepower 3.1L V6 6-speed shiftable automatic AWD
| 109200 mi | Trouble code P2404, ongoing issue. Reset the fault and it comes back at irregular intervals. No performance or fuel economy effects. |
| 111200 mi | P2404 re-appeared after several hundred miles. |
| 128000 mi US $62 |
Did a trip check, also got info on the check engine light which is some kind of sensor problem |
| 152900 mi | Leaking oil |
| 157000 mi US $1100 |
Seals. Leaking oil. |
| 169000 mi US $3337 |
I drove to work with no issues, at lunch it began with a loud ticking. Took it to the shop & they said that they found the timing chain & related parts had come apart & I needed a new engine. |
| 114000 mi US $330 |
Brittle coolant expansion tank hose connection split and sprayed coolant all over engine bay. Repair required entire hose assembly and brackets be replaced (they were old and beyond repair). Parts were limited in my major metro area so it took an extra day to wait for the required parts. |
| 62620 mi | During the first month, the fuel injectors needed to be replaced (covered under warranty, thankfully - $2000). Slow to start when cold. |
| 93280 mi C $150 |
Replaced pulley of serpentine belt tensioner |
| 97960 mi C $166 |
Replaced purge valve solenoid of evap. system in the fuel tank and replaced fuel cap. |
| 102300 mi C $800 |
Replaced valve cover gaskets and front cam cover gasket as they were leaking oil. Reinforced the connection of plug-in connector for rear seat airbag sensor under the seat as the warning light was illuminated. |
| 30000 mi | CEL came on. Purge valve was faulty and causing CEL light. Valve was replaced; car running normally now. |
| 35300 mi | Replacement of coil packs. Replacement of coil packs |
| 46000 mi | CEL came on due to gas cover being opened |
| 91000 mi US $6 |
Cracked vacuum line, replaced line. |
| 131000 mi US $37 |
Oil leak from valve covers, both sides. Valve cover gaskets were replaced. |
| 68700 mi US $50 |
Fuel pump failed |
| 82000 mi US $400 |
Check engine light caused by faulty hose. |
| 92000 mi US $1019 |
Replace vacuum pump, timing cover gasket Replace vacuum pump, timing cover gasket |
| 90700 mi US $300 |
Left bank failure due to broken harness cause check engine light to appear. |
| 141000 mi US $4500 |
Leaking head gasket |
| 169000 mi US $2500 |
The throttle body broke. |
| 86000 mi US $1500 |
Purge valve sticking |
| 95000 mi US $650 |
repaired oil leak |
| 98000 mi | Engine oil leak |
| 98700 mi | We finally got the oil leak fixed, but it took 2 more trips to the dealer. We kept going through the engine replacing additional seals until we finally fixed the problem. |
| 95000 mi US $2400 |
Broken motor mount |
| 85000 mi | timing chain seal, valve cover gasket |
| 121300 mi | Small leaks in the oil pan, oil drain plug, valve covers. Estimated about $1000 to repair. Instead I'll add a little oil occasionally. |
| 72000 mi US $250 |
Check Engine Light - EVAP purge valve replaced. |
| 105300 mi US $300 |
Check Engine Light comes on intermittently |
| 103000 mi | Check Engine light was NOT repaired and it remained a problem, which was the reason I sold the car. |
2006 Audi A6 / S6 / RS6 4-door
turbocharged 4-cylinder diesel CVT 2WD
| 55800 mi €400 |
No power available while driving thru mountains in Italy. Replacement of turbo sensor ($7) was required. Claimed 7 hours for diagnosis and repair. |
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