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

Necessary preliminary tasks

Remove FRONT SEAT .

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

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 From Seat Frame

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IMPORTANT: Risk of damage!
Avoid subjecting electric leads to tensile load.

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

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 Bushing And Seat Rail

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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).

Tightening torque 67 31 2AZ .

Fig 3: Disconnecting Drive Unit Plug Connection

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

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 Drive Unit For Seat Tilt Adjustment At Spindle

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Replacement

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

INITIALIZE drive unit for seat tilt adjustment.

Fig 5: Identifying Seat Unit Adjuster And Holder

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