86 10... Disassembly Of Left And Right Wheel Boxes

Remove sealing compound (1).

Drill out rivets (2).

Raise side apron (3). Pull out wheel box (4) towards rear.

Fig 1: Identifying Side Apron, Wheel Box And Sealing Compound

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Use Sikaflex 221 as sealing compound.