52 25 ... Additional Work (Comfort) With Defective Drive For Backrest Angle Adjustment

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

Detach seat cover and padding (1) on inside (center armrest) of seat.

Release screws (2).

Installation:

Tightening torque 8±1 Nm.

Pull gearing (3) outwards.

Backrest can now move freely.

Fig 1: Identifying Screws, Gearing & Padding

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Before gearing can be reinstalled, both levers (1) and (2) must be synchronized.

Adjust inner lever (1) (to center armrest) so that gear wheel engages 1st tooth of lever.

Adjust outer lever (2) so that gear wheel engages 2nd tooth of lever.

Install gearing.

Fig 2: Identifying Outer & Inner Lever

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Checking:

Measurements a and b must match up.

Fig 3: Measuring Point "a" & "b"

Courtesy of BMW OF NORTH AMERICA, INC.