Leakage downstream of turbocharger
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, and 2003 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Effect: Charge air pressure too low
Possible fault sources:
- Connection hoses and line between turbocharger and charge air cooler
- Hose between charge air cooler and intake manifold
- Charge air cooler
- Gasket of Charge air pressure sensor G31 (in charge air cooler)
- Gasket between throttle valve control module and intake manifold
- Gasket between intake manifold and cylinder head