52 13 405 Backrest Cover For Left or Right Front Seat

52 13 405 - Replacing backrest cover for left or right front seat





Special tools required:
- 52 0 050 Tools and Equipment





Necessary preliminary tasks:
- Clamp off battery negative lead 61 20 900 Disconnecting and Connecting Battery Negative Lead
- Remove rear panel 52 13 198 Rear Panel on Left or Right Front Seat Backrest
- Remove head restraint 52 13 390 Front Left or Right Head Restraint





Version with seat heating only:
Unfasten plug connection (1) and disconnect.
Detach cable tie.
Release wiring harness (2) from cable holders on seat mechanism.

Important!
Feed the wiring harness carefully through the seat and backrest mechanism as the edges of the frame can be sharp.

Installation:
Lay wiring harness without kinks and tension.





Unclip cable tie (1) from seat mechanism.





Release cable tie (1).

Installation:
Replace defective cable tie.

Open zip fastener (2).





Detach backrest cover (1) from backrest frame.





Unscrew nuts (1).

Installation:
Replace nuts.

Tightening torque 72 12 03AZ 72 12 Airbag Modules.





Detach mounting strip (4) from flexmat.
Carefully pull airbag module (3) with threaded pins out of backrest frame and feed out between padding (1) and inner bag (2).
Set down airbag module (3) to one side.





Installation:
Pull inner bag (1) fully over airbag module and threaded pins.
Feed in mounting strip (2) of inner bag (1) through backrest frame.
Insert threaded pins into backrest frame and secure with new nuts.
No inner bag material is permitted to project through the hole in the inner frame.
Install nuts and tighten down.
Tightening torques 72 12 03AZ 72 12 Airbag Modules.





Installation:
Inner bag must be between airbag module and backrest frame!

Engage mounting strip (1) of inner bag in flexmat.

Position inner bag (2) smoothly over backrest frame.
Engage backrest cover (3) in backrest frame.





Reposition backrest cover (1) at side and bottom and pull off with padding towards top from backrest frame.





Release all retainers in marked area.
Remove backrest cover from padding.

Note:
Remove all remnants of retainers from backrest cover and padding.





Installation:
Bend new retainer (2) with special tool 52 0 050.

1. Padding
2. Retainer
3. Trim wire in padding
4. Trim wire in backrest cover
5. Backrest cover





Replacement of backrest cover:
Pull trim wires out of backrest cover.
Cut new backrest cover to size and insert trim wires.