67 31 530 Removing and installing/replacing drive unit for backrest angle adjustment

Necessary preliminary tasks 

• Remove FRONT SEAT .
• Remove rear panel on front seat backrest  . See 52 17 205 REMOVING AND INSTALLING/REPLACING BOTH REAR PANELS ON LEFT OR RIGHT FRONT SEAT BACKREST or 52 14 198 REMOVING AND INSTALLING OR REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST .
• Remove covers on front seat  . See 52 14 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON LEFT OR RIGHT FRONT SEAT , 52 14 041 REMOVING AND INSTALLING INNER COVER ON LEFT OR RIGHT FRONT SEAT or 52 13 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON LEFT OR RIGHT FRONT SEAT (NORMAL/SEMI-ELECTRIC) .

If necessary, disengage backrest cover (1) on left and right in lower area and lay outwards slightly.

Release screw (4).

Detach metal retaining ring (2) on left and right from drive rod (3).

Installation: 

Always replace metal retaining ring (2).

Make sure metal retaining ring (2) is correctly seated.

Pull out drive rod (1) until drive unit for backrest angle adjustment (2) is free.

Installation: 

Make sure drive rod (1) is correctly seated in drive unit for backrest angle adjustment (2).

Disconnect plug connection on drive unit for backrest angle adjustment (2).

Feed drive unit for backrest angle adjustment (2) out of backrest frame (3) and remove.

Replacement 

INITIALIZE  backrest adjustment motor.