00 11... Checking/Topping Up Oil Level In Rear Differential

WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2006 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

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

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: Identifying Oil Filler Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Oil filler plug with sealing ring:
Replace sealing ring (1).
Oil filler plug with O-ring:
Replace oil filler plug (2).

Tighten to specified torque. See REAR AXLE -- TORQUE SPECIFICATIONS .

Fig 2: Identifying Oil Filler Plug With Sealing Ring And Oil Filler Plug With O-Ring

Courtesy of BMW OF NORTH AMERICA, INC.