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

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Necessary preliminary tasks:

Remove DRIVER'S or FRONT PASSENGER seat.

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

Release screws (1).

Tightening torque: see 6AZ in 52 10 FRONT SEATS

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: Removing Seat Rail From Seat Frame

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: see 2AZ in 67 31 DRIVE, SEAT ADJUSTMENT

Fig 3: Removing Drive Unit Screw Using Screwdriver

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 For Seat Tilt Adjustment At Spindle

Courtesy of BMW OF NORTH AMERICA, INC.