Replace valve stem seals - AR05.30-P-3500-02PI

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 Mercedes-Benz ML350, 2010 Mercedes-Benz ML350, 2009 Mercedes-Benz ML320, 2009 Mercedes-Benz GL320, and 2008 Mercedes-Benz ML320. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Pliers (606 589 00 37 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Identifying Drift (604 589 00 43 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Use pliers (1) to pull off valve stem seals (86)
Check surface of valve stems for roughness and formation of burrs (visual inspection or with a nail).
Replace valves if the stem surface is rough, or if there is ridging.
Fit protective sleeve (2) onto valve stem.
Oil valve stem seals (86).
Press on the valve stem seals (86) with a drift (3).

Shown on engine 112

Fig 3: Pressing On Valve Stem Seals

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.