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

Necessary preliminary tasks: 

• Remove driver's or front passenger seat. See REMOVING DRIVER'S SEAT  or REMOVING FRONT PASSENGER SEAT .

Release screws (1).

Tightening torque 52 10 6AZ .

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

Fig 1: Folding Back Seat Rail

Courtesy of BMW OF NORTH AMERICA, INC.

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 Seat Cushion Tilt Adjustment Plastic Bushings

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) 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: Disconnecting Seat Cushion Tilt Adjustment Drive Unit Plug Connection

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: Removing Seat Cushion Tilt Adjustment Drive Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement 

Measure dimension (A) and adjust by turning holder (1) on new drive unit for seat cushion tilt adjustment (2).

INITIALIZE drive unit for seat cushion tilt adjustment.

Fig 5: Identifying Seat Cushion Tilt Adjustment Holder Dimension

Courtesy of BMW OF NORTH AMERICA, INC.