67 31 540 Removing and Installing/Replacing Drive Unit For Head Restraint Adjustment (Comfort Seat)

67 31 540 Removing And Installing/replacing Drive Unit For Head Restraint Adjustment (Comfort Seat)







Necessary preliminary tasks:
- Remove both rear panels on front seat backrest







Disconnect plug connection (1).
Release screw (2).
Tightening torque 67 31 4AZ.







Pull shaft (1) in direction of arrow out of shaft receptacle (2).

Installation:
Make sure shaft (1) is correctly seated in receptacle (2).

Release retaining ring (3).
Feed out drive unit for backrest head adjustment (4) and remove.







Removal and installation only:
Do not turn spindle (1) in order not to change measurement A.

Replacement:
Adopt measurement A of removed drive unit for backrest head adjustment (2). If necessary, adjust measurement A by turning spindle (1).
Initialize drive unit for backrest head adjustment.