Preparation Of New Part
WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Mark severance cuts on the new part according to vehicle and cut.
Prepare REINFORCEMENT PLATES (bonded) at all severance cuts.
Separate weld joints in area (1) from inside.
Remove sill section (2).
Adjust new part to fit and secure.
In areas (1) and (2) set 4.2 mm dia. bore holes for blind rivets:
Area (1): 5 bore holes
Area (2): 4 holes
F02 only:
In area (1) 6 holes
In areas (1) and (2) set 4.2 mm dia. bore holes for blind rivets:
Area (1): 3 holes
Area (2): 1 bore holes
Remove new part again and deburr bore holes.
IMPORTANT:
Do not grind/sand new part in area of bonding surfaces.