51 21 035 Removing And Installing/Replacing Function Carrier On Left Or Right Front Door

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2008 BMW 760Li, 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 760Li, and 2007 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT DOOR TRIM PANEL

IMPORTANT:

Risk of mixing up plugs for door lock and control unit!

Mark relevant plugs prior to removal.

Disconnect BOWDEN CABLE (1).

Disconnect plug connections (2).

Disconnect cable holder (3); if necessary, release cable tie.

Feed out door wiring harness through wiring harness opening (4).

Fig 1: Identifying Wiring Harness Opening, Cable Holder And Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Release quick-release couplings.

Remove function carrier.

Installation:

If necessary, replace defective quick-release couplings.

Make sure quick-release couplings are installed in correct position.

Quick-release coupling 1.8 mm grey
Quick-release coupling 0.8 mm white

Fig 2: Releasing Quick-Release Couplings
Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Seal on function carrier (sound insulation) must not be damaged.

Fig 3: Identifying Function Carrier (Sound Insulation)

Courtesy of BMW OF NORTH AMERICA, INC.