Car Problem Reports

Mercedes-Benz CLS500 Oil May Leak From PCV Vent Housings and Inspection Plates

Mercedes-Benz CLS500 Problem
6 Reports
Me Too

Model Year Affected: 2006

Average Mileage: 52,000 mi (48,000 mi - 60,000 mi)


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.

  • My engine oil started leaking from the driver it makes my car too slow to pick up so dissappointed with mercedes cars...:( ....most of mechanics cant find the problems with my car....

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  •  Rookie

    oil leak near PS res drivers side

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  •  Rookie

    Oil leaking from inspection plates on the front of engine. A technician indicated that it may be a rear main seal oil leak, which seems premature for a car with only 48,000 miles. My engine light is now on, hence I will call the dealership.

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