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Wastegate

Wastegate


Checking

If it is not possible to adjust the basic boost pressure, check as follows:


1. Release the curved exhaust pipe from the turbo unit and visually check that the flap valve is in good contact with the turbine housing.

2. Break the seal, remove the locking ring and unhook the pressure rod from the valve's control lever.

3. Check that the lever can be moved freely.

Change the faulty control valve.

4. Refit the locking ring and re-seal the pressure rod.