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

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove LEFT or RIGHT rear seat.

Detach backrest cover (1) from metal eyelets.

Unfasten plug connection (2) and disconnect.

Fig 1: Detaching Backrest Cover From Metal Eyelets

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 Drive Shaft And Retaining Rings (LH)

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 Drive Shaft And Retaining Rings (RH)

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

Carry out FUNCTION CHECK WITH ADAPTER CABLE

Replacement only:

INITIALIZE drive unit for backrest head adjustment.