Quote:
Originally Posted by 335dsleeper
If you’re pushing oil through the oil cap, your valvecover gasket might be on its way out.
6 of the 11 intake runners pass through the center of the valvecover. As the gasket ages it gets hard, brittle and won’t sufficiently keep boost pressure out. It will force oil out of the oil cap and out of the outer portion of the valve-cover gasket.
A member in the 335d section has similar issues as you and it ended up being the valvecover gasket.
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I do not see any oil apart from the picture attached.
In N54 I had in the past the valvecover gasket leaked because I overfilled the oil. Hard to believe these gaskets should be changed ones in a while if temperature and pressure are normal.