67 31 510 Removing And Installing/Replacing Drive Unit For Seat Tilt Adjustment

Necessary preliminary tasks: 

• Remove front seat  . See 52 14 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (NORMAL/ELECTRIC) or 52 17 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (COMFORT) .

Release screws (1).

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

Fig 1: Folding Back Seat Rail From Seat Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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 Bushings And Seat Rail

Courtesy of BMW OF NORTH AMERICA, INC.

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

To do so, insert a suitable slotted screwdriver (3) into receptacle (4), press drive unit for seat tilt adjustment (2) downwards slightly using a lever action and release screw (5).

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

Fig 3: Moving Screwdriver Upwards For Relieving Load On Drive Unit For Seat Tilt Adjustment

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Fig 4: Twisting Out Drive Unit For Seat Tilt Adjustment

Courtesy of BMW OF NORTH AMERICA, INC.

Comfort seat only: 

Replacement: 

Initialize  drive unit for seat tilt adjustment. See 67 31 ... NOTES ON INITIALIZING ELECTRIC SEAT SERVODRIVES .