86 10 ... Disassembly of Left And Right Wheel Boxes
WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Remove sealing compound (1).
Drill out rivets (2).
Raise side apron (3). Pull out wheel box (4) towards rear.
Installation:
Use Sikaflex 221 as sealing compound.
Fig 1: Identifying Sealing Compound, Rivets, Side Apron And Wheel Box