Changing differential oil
WARNING: This page is about a different car, the 2003 BMW X5 and 2002 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Change oil with rear axle differential at normal operating temperature. Final drive oil, refer to Service Information Operating Fluids. For filling quantity, refer to OPERATING FLUIDS - REAR AXLE .
Unscrew drain plug (2), clean and reinstall.
Unscrew the filler screw plug (1).
Pour in differential oil until overflowing. Install filler screw plug (1).
Installation:
Tightening Torque, refer to Technical DataMAINTENANCE AND GENERAL INFORMATION - TIGHTENING TORQUES .