How to Replace the PCV Valve and Cam Plugs (Expansion Plugs) on a 2009 Mercedes GL450

Brian Eslick from How to Automotive takes you step-by-step through the process of replacing the PCV valve and cam plugs (expansion plugs) on a 2009 Mercedes GL450. All done with hand tools. You will need a 3/8 drive ratchet, 17 mm socket E16 torx socket, flat blade screwdriver, hammer, 27 torx bit, 2/4inch ratchet, 1/4 Inch 1 inch extension, and a 10 mm socket.

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