Exhaust system, checking for proper seal
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Start engine and let run at idle.
- Seal tailpipes with cloths or plug for duration of leak test.
- Check for leaks by listening at cylinder head/exhaust manifold, exhaust manifold/front exhaust pipe etc.
- Repair leaks.