9-3 (9440) L4-2.0L Turbo (2.0 HOT) (2003)
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5.
Only petrol engines: Connect the pressure/vacuum pump to the by-pass valve and create an overpressure/vacuum in order to check that there is no
leakage in the membrane.
In the event of leakage: replace the by-pass valve or diaphragm.
