Replacing Seat Frame

720955 Replacing Seat Frame






Preliminary work
1. Remove padding for front seat.
2. Remove belt lock.

NOTE: Only for vehicles with adaptive sports seats.

3. Remove air cushion motor.

NOTE: Only for vehicles with adaptive sports seats.

4. Remove air cushion control valve.

NOTE: Only for vehicles with adaptive sports seats.

5. Remove switch for air cushion.
6. Remove wire harness for electrically adjustable seats.

NOTE:
- Only for USA/Canada version vehicles.
- Passenger's seat only.

7. Remove AWS control unit.

NOTE: Only for vehicles with adaptive sports seats.

8. Remove air cushion for seat.

Disassembling seat frame

Removing cover for AWS sensor on left and right

NOTE:
- Only for USA/Canada version vehicles.
- Passenger's seat only.

1. Unscrew fastening screws -1- and remove cover for AWS sensor -2- in direction of arrow.






Removing frame for seat surface
1. Press out retaining pins -1- at the left and right with a screwdriver.






2. Unscrew fastening screws -2-, pull frame for seat surface -3- downwards -arrow A- and remove outwards -arrow B- from the seat frame -4-.

Removing backrest frame

NOTE: Two persons are needed to remove and install the backrest frame.

1. Secure backrest frame -2- in upright position.






2. Unscrew fastening screws -1- on left and right and remove backrest frame -2- up out of the seat frame.

Assembling seat frame

Installing backrest frame

DANGER:
Loosen the safety screws.
- Danger of injury if front seat is not screwed down correctly.

- Always replace fastening screws for the front seat after customer service and reworking.
- It is not permissible to make alterations to the micro-encapsulated screws (e.g., use lubricant, loosen bolts, and screw them down again).

NOTE: Two persons are needed to remove and install the backrest frame.

1. Fit backrest frame -2- into the seat frame, position it correctly and secure with the fastening screws -1-.

Tightening torque: 34 Nm (25 ftlb.) ± 4 Nm (± 3 ftlb.)






Installing frame for seat surface
1. Position frame for seat surface -3- on the seat frame -4- (-arrow A-), press it upwards -arrow B- and screw down the fastening screws -2-.






2. Press in new retaining pins -1- at the left and right.

Installing cover for AWS sensor on left and right

NOTE:
- Only for USA/Canada version vehicles.
- Passenger's seat only.

1. Fit cover for AWS sensor -2- in direction of arrow and tighten hand-tight using the fastening screws -1-.






Subsequent work

NOTE: Only for vehicles with adaptive sports seats.

1. Install air cushion for seat.
2. Install wire harness for electrically adjustable seats.

NOTE:
- Only for USA/Canada version vehicles.
- Passenger's seat only.

3. Install AWS control unit.

NOTE: Only for vehicles with adaptive sports seats.

4. Install switch for air cushion.

NOTE: Only for vehicles with adaptive sports seats.

5. Install air cushion control valve.

NOTE: Only for vehicles with adaptive sports seats.

6. Install air cushion motor.
7. Install belt lock.
8. Install padding for front seat.