31 51 065 Replacing O-ring for bearing block

Necessary preliminary work: 

• Remove BEARING SUPPORT .

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

Installation note: 

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

Fig 1: Identifying O-Ring And Bearing Support

Courtesy of BMW OF NORTH AMERICA, INC.