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Exhaust gas recirculation system > < Exhaust system: positioning

Leon Mk2

Exhaust system air tight seal: verification
Exhaust system air tight seal: verification
–  Start the engine and let it run at idle.
–  Cover the final pipes during the test for an air tight seal (using a cloth or a plug).
–  Test by listening for noise in the joints of the cylinder head/exhaust manifold, exhaust manifold/front exhaust pipe with the catalytic converter, etc.
–  Repair any leaks encountered.
   

Exhaust gas recirculation system > < Exhaust system: positioning