Removing and Installing/Replacing Backrest Frame on Left or Right Front Seat

52 14 030 - Removing and installing/replacing backrest frame on left or right front seat





Necessary preliminary tasks:
- Remove backrest cover Replacing Backrest Cover for Left or Right Front Seat
- Remove seatback release Replacing Seatback Release (LVK Module) for Left or Right Front Seat
- Remove microswitch Replacing Microswitch on Left or Right Front Seat.
- Remove coupling gear 72 11 033 Removing and Installing/Replacing Front Left or Right Seat Belt





Note:
Before removing the backrest, it is essential to move the backrest forwards:

Tunnel side:

Release screw (1).

Installation:
Screw (1) must be replaced.

Tightening torque 52 10 07AZ 52 10 Front Seats.





Door side:
Release nut on opposite side from stud (1).
Drive out stud (1) with plastic mallet.

Installation:
Stud (1) and nut must be replaced.

Tightening torque 52 10 08AZ 52 10 Front Seats.





Remove backrest frame from seat mechanism as follows:
Lever tunnel-side backrest frame with screwdriver over bushing.
Then remove backrest frame in upward direction by pulling with alternate movements.
Tunnel-side plastic bushing (1) must not be damaged.





Backrest mounting on door side:
1. Install door-side backrest link (1).
2. Backrest link (1) must be joined centrally on blocking cam (2).
3. Connect stud and tighten nut hand-tight.





Backrest mounting on tunnel side:
1. Install tunnel-side backrest strut.

Important!
Plastic bushing must not be damaged

2. - Tighten screw hand-tight.

Note:
Tighten down stud and screw only after mounting backrest on both sides.
Tightening torque:
- Stud on door side: 52 10 08AZ 52 10 Front Seats.
- Screw on tunnel side: 52 10 07AZ 52 10 Front Seats.





Replacement only:
Remove inertia reel unit 72 11 033 Removing and Installing/Replacing Front Left or Right Seat Belt.
Remove lumbar cushion and valve housing/drive unit on front seat.