67 31 510 Removing and installing/replacing drive unit for seat cushion tilt adjustment: Notes

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove DRIVER'S SEAT or PASSENGER SEAT .

NOTE: Front left cover shown removed for purposes of clarity.

Release screws (1).

Tightening torque 52 10 6AZ .

Fold back seat rail (2) slightly from seat frame (3) in direction of arrow.

IMPORTANT: Risk of damage!
Avoid subjecting electric wiring to tensile load.

Fig 1: Folding Back Seat Rail

Courtesy of BMW OF NORTH AMERICA, INC.

WARNING: Danger of injury!
Do not move torsion bar spring.

Installation note:

Make sure plastic bushings (1) are correctly seated in seat rail (2).

Faulty plastic bushings (1) cause noises and must be replaced.

Fig 2: Identifying Plastic Bushing And Seat Rail

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) on drive unit for seat cushion tilt adjustment (2).

NOTE: Relieve load on drive unit for seat cushion tilt adjustment (2).

To do so, insert a suitable slotted screwdriver (3) in receptacle (4).

Press drive unit for seat cushion tilt adjustment (2) with a levering action downwards slightly and release screw (5).

Tightening torque 67 31 2AZ .

Fig 3: Inserting Screwdriver In Receptacle

Courtesy of BMW OF NORTH AMERICA, INC.

Then slowly move slotted screwdriver (3) upwards and relieve load on drive unit for seat cushion tilt adjustment (2) completely.

Tilt drive unit for seat cushion tilt adjustment (1) upwards and feed out from receptacle (2).

If necessary, twist out drive unit for seat cushion tilt adjustment (1) at spindle (3) to such an extent that it can be removed.

Fig 4: Twisting Drive Unit

Courtesy of BMW OF NORTH AMERICA, INC.