2014 AUDI A8 CGWB/CTRA (4H)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Air suspension leaks
• Electrical system quirks (MMI, sensors)

First checks

• Inspect air suspension for leaks or wear
• Check MMI firmware updates
• Verify timing chain rattle in early D4 models

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

• Market variations exist primarily in engine lineup and emissions equipment
• 2014 model was a facelift of D4 generation introduced in 2010