Exhaust System, Checking For Leaks

WARNING: This page is about a different car, the 2018 Audi A6 Quattro, 2017 Audi A6 Quattro, and 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- Start the engine and let it run at idle.

-- Seal the tail pipes with cloths or plugs during the leakage test.

-- Check for leaks by listening at connection areas at cylinder head and exhaust manifold, exhaust manifold and front exhaust pipe, etc.

-- Repair the detected leaks.