2007 Mercedes-Benz GL450 Q&A

2007 Mercedes-Benz GL450 Question: Oil Leak

There is an oil leak at the end of the valve cover facing the rear of the car. There appears to be a black plastic round cover about 1 1/2" in diameter where the oil leaks around. Anybody know what that is? Is it just a plug of some kind? Part of the valve cover gasket? -
Answer 1
I had a similar leak and it was the cam plugs. I had them replaced and no more leaks. -
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