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

WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Remove front seat. Refer to 52 14 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (NORMAL/ELECTRIC) . and 52 17 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (COMFORT) .

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

Release screws (1).

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

NOTE: Avoid subjecting electric leads to tensile load.

Fig 1: Locating Front Seat Retaining Screws

Courtesy of BMW OF NORTH AMERICA, INC.

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

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 In Seat Rail

Courtesy of BMW OF NORTH AMERICA, INC.

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

NOTE: Relieve load 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: View Of Plug Connection On Drive Unit For Seat

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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: Identifying Tilt Drive Unit For Seat Tilt Adjustment

Courtesy of BMW OF NORTH AMERICA, INC.

Comfort Seat Only:

Replacement:

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