audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

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Secondary air system - vehicles with engine code AHA, ALF, ALG, AML, AMM, AQD, ARJ, ATQ > < Stress-free alignment of exhaust system

A4 Mk1

Checking exhaust system for leaks
Checking exhaust system for leaks
–  Start engine and run at idling speed.
–  Plug tailpipes during leak test (e.g. with cloth or plug).
–  Listen for noise at connection points (cylinder head/exhaust manifold, exhaust manifold/front exhaust pipe, etc.) to locate any leaks.
–  Repair any leaks that are found.
   

Secondary air system - vehicles with engine code AHA, ALF, ALG, AML, AMM, AQD, ARJ, ATQ > < Stress-free alignment of exhaust system