Install the rubber window seal for the door window glass (with side window glass removed)

• Treat the rubber window seal (1) with a suitable lubricant.
• Position the rubber window seal (3) roughly on the door.
• Connect the rubber window seal (3) to the door.
• Insert the rubber window seal mountings (2) in the door.
• Make sure that the rubber window seal mountings (3) are fully inserted.

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: TECHNICAL INFORMATION 
  Detents, guides and mounting elements must not be damaged or missing.
• Check cover (1) for damage and replace if necessary.
• Mount the cover (1).
• Insert rubber window seal (1) into the window guide rails.
• Secure rubber window seal (1) on the window frame (2).

Courtesy of BMW OF NORTH AMERICA, INC.