2009 Audi A5 B8C/CDNC (8T)
8T / Coupe / Cabriolet / Sportback (market dependent) / Global (Europe, North America, select Asia-Pacific)
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Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- PCV valve failures causing rough idle
- Timing chain tensioner wear in 4-cylinder engines
- Oil leaks from camshaft seals
First checks
- Check timing chain and tensioner condition
- Inspect turbocharger boost leaks on 2.0 TFSI
- Ensure proper coolant system pressure
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 specification vary notably between markets with 2.0 TFSI and 3.2 FSI most common globally.
- Cabriolet (convertible) and Sportback (5-door) variants introduced in 2009 selectively by market.