Necessary preliminary tasks

IMPORTANT: The "INSTRUCTIONS ON FITTING WINDOW GUIDE SEALS" serve as the basis for this repair instruction and must be observed without fail.

Pull window cavity cover strip at front (1) and rear (2) from rear door.

Installation:

If necessary, replace faulty retainers (3).

Moisten window cavity cover strips (1 and 2) prior to fitting with APPROVED ANTI-FRICTION AGENT .

Fig 1: Removing Window Cavity Cover Strip

Courtesy of BMW OF NORTH AMERICA, INC.