67 31 540 Removing and Installing/Replacing Drive For Backrest Head Adjustment

67 31 540 Removing And Installing/Replacing Drive For Backrest Head Adjustment







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).
Initialise drive unit for backrest head adjustment.







NOTE: Carry out function check with adapter cable.