BMW Z4 E85 E86 3.0Si N52 PCV valve check with engine running.

11月 22, 2019 11月 22, 2019

fujijikou

Video shows what should happen on a healthy N52 when you open the oil filler cap with the engine running. Note no change in idle speed and light suction that can be heard and felt as the oil cap is opened an closed.

If the idle changes speed, the engine stalls or there is no light vacuum then the PCV system should be inspected / replaced.

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