Car Problem Reports

Mercedes-Benz E320 4MATIC Oil May Leak From PCV Vent Housings and Inspection Plates

Mercedes-Benz E320 4MATIC Problem
13 Reports
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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005


An engine Oil leak may develop from the PCV vent housing on the valve cover and/or the inspection plate on the front of the engine.

  • Visitor, , 44,000 mi

    MB Mechanic said the same thing to me. But I don't know the impact this will have if not treated.

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  • I have an wagon! I thought the head gasket was going but realized that couldn't be the case. It has to be the PCV housing. It's not much. I lose about a quart every 15,000 miles. But it's annoying. Sometimes it the oil drips on the hot engine and smells like it's burning oil.

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  • noticed oil leak all over valve cover and coils. in process of taking apart looking for leak or leaks

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