2005 Audi A6 BPP/ASB (C6)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain tensioner wear in some V6 engines
• Oil leaks around camshaft seals and valve cover gaskets
• Diesel injector issues on 2.7 TDI models

First checks

• Verify timing chain condition and service history
• Check for oil leaks around engine seals
• Inspect diesel particulate filter and injector performance on TDI variants

Vor dem Teiletausch

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• Engine and transmission options vary significantly by market and model year split in 2005.
• Oil capacity figure includes filter change; always verify with service manual for specific engine.