00 11 ... Checking/topping up oil level in rear differential

IMPORTANT: Risk of damage! To avoid serious damage to the rear differential, it is essential to use only approved gear oils in the differential.

Undo oil filler plug (1).

Check oil level.

If necessary, pour in rear differential oil up to lower edge of opening for oil filler plug (1).

Fig 1: Locating Oil Filler Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

A) Oil filler plug with sealing ring:

Replace sealing ring (1).

Tightening torque, (65 N.m.).

B) Oil filler plug with O-ring:

Replace oil filler plug (2).

Tightening torque, (60 N.m.).

Fig 2: Identifying Types Of Oil Filler Plugs

Courtesy of BMW OF NORTH AMERICA, INC.