Exhaust System, Checking For Leaks: Procedure
WARNING: This page is about a different car, the 2016 Volkswagen Beetle, 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. 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 where the exhaust manifold attaches to the cylinder head and where the turbocharger attaches to the front exhaust pipe.
-- Repair detected leaks.