31 51 065 Replacing O-ring for bearing block

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Necessary preliminary tasks:

Remove bearing block, see 31 53 040 Removing and installing/replacing right output shaft bearing block .

Remove O-ring (1) with a suitable tool from bearing block (2).

Installation:

Insert O-ring (1) in groove and coat with front differential oil.

Fig 1: O-Ring And Bearing Block

Courtesy of BMW OF NORTH AMERICA, INC.