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C6 Sedan · Avant
Audi A6 · Sedan · Avant · 2004–2011
C6 RS6 packed the V10 from the Lamborghini-derived family.
Production run
2004–2011
Engines covered
6
Avg. part price
—
19902026
Interactive systems map
Inspect the C6
Tap a hotspot to inspect that system
Systems map
Where it goes wrong
Each numbered hotspot counts the documented failure points in that area. Select one to see the specifics for this chassis and engine.
Failure points by system
Engine6
Cooling1
Intake3
Fuel2
Exhaust2
Documented issues per engine
5EA888
4ASN
44.2 V8
45.2 FSI
52.0 TDI
53.0 TDI
Known weak points
What breaks on the C6
Gen1/2 oil consumption (piston rings)Diagnose →Timing chain tensioner (Gen2)Diagnose →Timing chain tensioners at the rearDiagnose →Oil consumptionDiagnose →Timing chain tensioners (front-of-engine job)Diagnose →Carbon buildup on FSI versionsDiagnose →Carbon buildupDiagnose →Coil packsDiagnose →PD injector loom and cam wear (PD era)Diagnose →DPF cloggingDiagnose →Swirl flap motorDiagnose →EGR coolerDiagnose →
Guides & playbooks
C6 playbooks
Maintenance scheduleGive me a mileage-based maintenance schedule for a Audi A6 C6, including the items the factory schedule skips.Buyer's inspectionI'm inspecting a used Audi A6 C6. What exactly should I check, test drive and look for underneath?Build planPlan a staged performance build for a Audi A6 C6 that stays reliable as a daily driver.Fault code lookupI have a fault code on my Audi A6 C6. Walk me through what it means and how to confirm the cause.
Fits your C6
Parts & tools
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