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Mercedes-Benz GL450 Problems

Engine Oil Leak From PCV Vent Housing and/or Engine Inspection Plate on Mercedes-Benz GL450

Problem Description and Possible Solution

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.

(20 people reported this problem)

Mercedes-Benz GL450 Vehicles With This Problem

RepairPal Verified
Average mileage: 74,195 (12,500–163,000)
5 model years affected: 2007, 2008, 2009, 2010, more2012
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Brake problem? Or maybe a faulty head gasket cylinder?
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