Oil drain plug present
WARNING: This page is about a different car, the 2010 BMW M6, 2009 BMW M6, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.
Place oil collecting apparatus underneath.
Open plug (1).
Drain and dispose of differential oil.
Replace sealing ring or screw plug.
Tightening torque: see "3AZ" in table under 33 11 REAR DIFFERENTIAL CASE WITH COVER (with sealing ring).
Tightening torque: see "9AZ" in table under 33 11 REAR DIFFERENTIAL CASE WITH COVER (with O-ring).
Open plug (2).
Add rear differential oil up to lower edge of opening for screw plug (2); if necessary, refer to REAR AXLE - TECHNICAL DATA for necessary fill quantity.
Replace sealing ring or screw plug.
Tightening torque: see "3AZ" in table under 33 11 REAR DIFFERENTIAL CASE WITH COVER (with sealing ring).
Tightening torque: see "9AZ" in table under 33 11 REAR DIFFERENTIAL CASE WITH COVER (with O-ring).