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31 50 ... Changing Front Differential Oil

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 335xi, 2008 BMW 328xi, 2007 BMW 335xi, 2007 BMW 328xi, and 2006 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:

Use only the approved front differential oil in this front differential.

Failure to comply with this requirement will result in serious damage to the differential!

NOTE: Only change oil when front differential is at normal operating temperature.

Necessary preliminary tasks:

Remove reinforcement plate. See 31 10 010 Removing and Installing/Replacing Reinforcement Plate (AWD)

Checking/correcting front differential oil level:

Undo oil filler plug (1).

Check front differential oil level.

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

Installation:

Replace sealing ring.

Tightening torque 31 50 2AZ. See 31 50 FRONT AXLE DIFFERENTIAL E90

Fig 1: Identifying Oil Filler Plug

G04745219

Courtesy of BMW OF NORTH AMERICA, INC.

Changing front differential oil:

Place oil collecting apparatus underneath.

Remove oil drain plug (1).

Drain front differential oil.

Replace sealing ring, screw in oil drain plug (1) and tighten down.

Tightening torque 31 50 2AZ. See 31 50 FRONT AXLE DIFFERENTIAL E90

Undo oil filler plug (2).

Pour in front differential oil up to lower edge of opening for oil filler plug (2).

Installation:

Fig 2: Identifying Oil Drain Plug

G04745220

Courtesy of BMW OF NORTH AMERICA, INC.

Replace sealing ring.

Tightening torque 31 50 2AZ. See 31 50 FRONT AXLE DIFFERENTIAL E90