2021 Audi A6 CWGA/CWGB (4K)
4K / Sedan / global / varies by region with differences in engines and transmissions
CWGACWGBCWGCCWGDCWGECYTCCNJAFiche exacte année/versionGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- High-pressure fuel pump wear in TFSI engines
- DPF clogging in diesel variants
- Electrical system quirks related to MMI infotainment
First checks
- Timing chain tensioner condition
- Oil consumption and leaks
- Turbocharger performance especially in diesel models
Avant de remplacer des pièces
- 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 equipment vary significantly with market; US models generally omit diesel engines.
- Mild-hybrid system optional or standard depending on engine and market.