67 31 610 Removing and installing/replacing drive for seat tilt 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 complete padding for rear seat.

Installation:

Powerlok screws must be replaced and must not be reused.
Powerlok screws are mechanical screw locks with trilobular threads.

Installation:

Microencapsulated screws (Loctite) must be replaced and may not be reused.
Screw connection must be completed within 20 minutes (start of curing).
Microencapsulated screws must not be retightened.
Clean thread of nut beforehand in event of repeated use.

Unfasten plug connection (1) and disconnect.

Release screw (2).

Installation:

Replace screw (2).

Tightening torque 67 31 13AZ .

Fig 1: Identifying Seat Tilt Adjuster Plug Connection And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Installation:

Replace screws (1).

Tightening torque 67 31 12AZ .

Remove drive for seat tilt adjustment (2).

Fig 2: Identifying Seat Tilt Adjuster Drive And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Installation position for controlled pan installation.

Adjust position (A) of seat tilt adjustment from rear stop.

= 29.4 mm

Fig 3: Identifying Seat Tilt Adjustment Position

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

Carry out FUNCTION CHECK WITH ADAPTER CABLE .

Replacement only:

INITIALISE drive unit for seat tilt adjustment.

Necessary preliminary tasks

Remove complete padding for rear seat.

Installation:

Powerlok screws must be replaced and must not be reused
Powerlok screws are mechanical screw locks with trilobular threads

Installation:

Microencapsulated screws (Loctite) must be replaced and may not be reused
Screw connection must be completed within 20 minutes (start of curing)
Microencapsulated screws must not be retightened
Clean thread of nut beforehand in event of repeated use

Unfasten plug connection (1) and disconnect.

Release screw (2).

Installation:

Replace screw (2).

Tightening torque 67 31 13AZ .

Fig 1: Identifying Seat Tilt Adjuster Plug Connection And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Installation:

Replace screws (1).

Tightening torque 67 31 12AZ .

Remove drive for seat tilt adjustment (2).

Fig 2: Identifying Seat Tilt Adjuster Drive And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Installation position for controlled pan installation.

Adjust position (A) of seat tilt adjustment from rear stop.

= 29.4 mm

Fig 3: Identifying Seat Tilt Adjustment Position

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

Carry out FUNCTION CHECK WITH ADAPTER CABLE .

Replacement only:

INITIALISE drive unit for seat tilt adjustment.