Replacing 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
Necessary preliminary tasks:
- Remove outer cover on front seat Removing and Installing/Replacing Outer Cover on Left or Right Front Seat
- Remove inner cover on front seat Removing and Installing/Replacing Inner Cover on Left or Right Front Seat
- Remove guide for head restraint Removing and Installing/Replacing Guide for Left or Right Front Seat Head Restraint
- Remove handwheel for lumbar support Removing and Installing Lumbar Support on Front Seat
- Remove actuating unit Removing and Installing/Replacing Actuating Unit for Left or Right Seat Back Release for seat back release
Warning!
Seat and backrest frames of front seats have very sharp edges. Risk of injury and damage!
Warning!
Read and comply with safety regulations [1][2][3]72 .. ... Safety Precautions and General Information for handling airbag modules and pyrotechnical belt pretensioners.
Improper handling can lead to triggering of the pyrotechnical seat belt pretensioner or side airbag, resulting in injuries.
Switch off ignition!
Version without rear panel only:
Lever out pin (1) and remove expander rivet.
Installation:
If necessary, replace faulty expansion rivet.
Lever out welt from backrest cover in marked area.
Open zip fasteners on left and right.
Version with rear panel only:
Lever out clips (1).
Detach backrest cover (2) from backrest frame.
Lever out clips (1).
Unlock backrest and tilt forward.
This partially relieves tension on torsion spring (1).
Warning!
Torsion spring (1) is still under tension. Risk of injury!
In addition, relieving the tension on the spring under uncontrolled conditions (e.g. if the gripping pliers slip) can cause the seat cover to tear.
Carefully disengage torsion spring (1) from pin with gripping pliers.
Release screw (2) and detach torsion spring from axle pin.
Tightening torque: 52 13 06AZ.
Important!
Risk of damage!
Feed out backrest cover over stud (1) on backrest frame.
To make this job easier, carefully raise seat frame leg (2) with a suitable tool.
Cut open cable tie (1).
Unlock plug (2) and pull out of plug housing.
Installation:
Replace defective cable tie.
Plugs are coded against incorrect installation.
Feed wiring harness out of holders (3).
Disengage seat cover welt from seat frame.
Unclip cable holder (1).
Feed wiring harness (2) out of seat and backrest frames.
Release screw (1).
Tightening torque 72 12 06AZ 72 12 Gas Generator, Unit For Front Passenger Side.
Disengage airbag module in cover pocket (2) from backrest frame.
Version without rear panel only:
Remove backrest cover with padding from backrest frame.
Version with rear panel only:
Remove backrest cover with padding from backrest frame.
Pull airbag module downwards out of cover pockets (1).
Installation:
Slide airbag module with suspension hooks up to opening in cover pocket.
Cover pocket (1) must not be damaged.
Release all retainers.
Remove seat cover from padding.
Important!
Remove all remnants of clips from seat cover and padding.
Installation:
Insert new retainer (2) with special tool 52 0 050 and bend closed.
1. Padding
2. Retainer
3. Trim wire in padding
4. Trim wire in seat cover
5. Backrest cover