Exhaust System, Checking For Leaks: Procedure
WARNING: This page is about a different car, the 2016 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
When working on the whole exhaust system:
- Follow the safety precautions when working on the exhaust system. Refer to EXHAUST SYSTEM SAFETY PRECAUTIONS .
-- Start the engine and let it run at idle.
-- Seal the tail pipes with cloths or plugs during the leakage test.
-- Check the connections exhaust manifold to cylinder head, intermediate pipe to exhaust manifold and turbocharger to intermediate flange for leaks.
-- Repair detected leaks.