67 31 640 Removing and installing/replacing drive for backrest head adjustment (comfort seats in rear compartment)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks

Remove left or right rear seat . See 52 25 135 REMOVING AND INSTALLING/REPLACING SEAT BACKREST FRAME FOR LEFT REAR SEAT or 52 25 137 REMOVING AND INSTALLING/REPLACING BACKREST FRAME .

Detach backrest cover (1) from metal eyelets.

Unfasten plug connection (2) and disconnect.

Fig 1: Identifying Back Rest Cover And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Pull shaft (2) in direction of arrow out of drive.

Installation:

Ensure shaft (2) is correctly seated in drive locator.

Release retaining rings (1).

Remove drive for backrest head adjustment from backrest frame.

Fig 2: Pulling Shaft Out Of Drive

Courtesy of BMW OF NORTH AMERICA, INC.

Release retaining rings (1).

Pull shaft (2) in direction of arrow out of drive.

Installation:

Ensure shaft (2) is correctly seated in drive locator.

Remove drive for backrest head adjustment from backrest frame.

Fig 3: Pulling Shaft Out Of Drive

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

Carry out FUNCTION CHECK WITH ADAPTER CABLE .

Replacement only:

INITIALISE drive unit for backrest head adjustment.