Lock the gear backlash compensation - AR05.20-P-7201-05AMG

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ENGINE 156, 159

Fig 1: Identifying Compressing Tool (156 589 01 63 00)

Courtesy of MERCEDES-BENZ USA

The tooth flanks (2a, 2b) are pressed against one another under spring tension. Ensure that the tooth backlash compensation is arrested before installing the camshaft adjuster.

Insert retaining bolt (01b) for tensioning tool (01) in to camshaft adjuster (2).
The tensioning tool (01) should make even contact with the camshaft adjuster (2).
Screw in bolt (01s) as far as possible.
This causes the quadrant (01z) to arrest the tooth flanks (2a, 2b) on the camshaft adjuster (2) in relation to one another.

Fig 2: Inserting Retaining Bolt For Tensioning Tool Into Camshaft Adjuster
Courtesy of MERCEDES-BENZ USA