2011 AUDI S4 CAT/CWGA (8K)
8K / Sedan / Avant (wagon) / Global (Europe, North America, Asia, selected markets)
CATCWGAFiche exacte année/versionGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Supercharger belt wear and failure
- Carbon buildup on intake valves (direct injection V6)
- Timing chain tensioner noise on early models
First checks
- Inspect supercharger belt condition and tension
- Check for oil leaks at valve cover gasket
- Examine timing chain tensioner noise and wear
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
- Supercharged 3.0 V6 replaced earlier V8 S4 model.
- Engine code CAT generally for European models, CWGA mainly North America.
- Manual transmission limited to few markets; majority global supplied with S Tronic automatic.
- Oil capacity includes oil filter change; use only recommended synthetic oil.
- Market variations exist in brake and transmission fluid specifications.