Necessary preliminary tasks

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Close front side window completely
Remove FRONT DOOR TRIM PANEL
Remove FRONT ACOUSTIC INSULATION

Unlock plug connection (1) on door lock and disconnect.

Unlock plug connection (4) on power window and disconnect.

Disconnect plug connection (2) on outside door handle light.

Disconnect plug connection (5) on door mirror.

Unclip door wiring harness at points (3).

Fig 1: Identifying Power Window Plug Connection And Door Mirror Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure door wiring harness is correctly laid.

Release screw (1), fold door wiring harness plug on A-pillar (2) downwards slightly and remove.

Unlock plug connection behind and disconnect.

Pull rubber grommet (3) out of front door.

Feed out door wiring harness towards front to A-pillar and remove.

Fig 2: Pulling Rubber Grommet Of Front Door

Courtesy of BMW OF NORTH AMERICA, INC.