Audi Workshop Service and Repair Manuals > A3 Mk2 > Power unit | 4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics | Exhaust system | Silencer (vehicles with engine code CBEA)

Checking exhaust system for leaks

–	Start the engine and run at idling speed.

–	Plug tailpipes during leak test (e.g. with cloth or plug).

–	Listen for noise at the connection points of cylinder head/exhaust manifold, turbocharger/front exhaust pipe etc. to locate any leaks.

–	Rectify any leaks that are found.

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