Removing and installing/replacing drive unit for seat cushion tilt adjustment (M4 Convertible)

Necessary preliminary tasks: 

• Remove driver's or front passenger seat. Refer to REMOVING AND INSTALLING FRONT PASSENGER SEAT (NORMAL/ELECTRIC) or REMOVING AND INSTALLING FRONT SEAT, DRIVER'S SIDE (NORMAL/ELECTRIC) .

Release screws (1).

Tightening torque 52 10 6AZ .

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

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Avoid subjecting electric wiring to tensile load.

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.

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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 .

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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.

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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 .

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