Front Seat

Front Seat

• The following describes removing and installing on the left side of the vehicle. Removing and installing on the right side is identical.

Removing

The general safety precautions for working on airbag, belt tensioner and battery cut-out units (pyrotechnic components) must be observed.

- Position the seat as far forward as possible using the forward/back adjustment.

If the battery interrupt igniter (N253) has fired, it will not be possible to adjust a power driver seat using the driver seat adjustment control head (E470). In this situation, the lengthwise adjustment for the seat frame can be performed as follows: => [ Adjusting Driver Seat Lengthwise with Battery Interrupt Igniter N253 that has Fired ] Adjustments.

- Remove the belt anchor at the front seat => [ Front Seat Belt Anchor ] Front Seat Belt Anchor.

- Unscrew the rear bolts - 2 - and - 3 -.

- Position the seat as far back as possible using the forward/back adjustment.

- Disconnect the battery.

- Unscrew the front bolts - 4 - and - 1 -.






- Tilt the seat backward until the harness connectors are accessible.

Electrostatic discharges can lead to unintended deployment of the airbag. Therefore, the technician must discharge static electricity from the body before disconnecting the ignition wire and ground wire. This is done, for example, by briefly grasping the chassis or door striker.

- Depending on the vehicle equipment, disconnect the seat wiring harnesses from the connection point.

- Connect the airbag adapter (VAS 6281) to the wiring harness of the thorax airbag.

- If the airbag adapter (VAS 6281) does not fit, the airbag adapter (VAS 6282) must be used!

The airbag adapter (VAS 6281) or airbag adapter (VAS 6282) must stay connected to the seat until the seat is reinstalled.

If the seat is lifted out of the vehicle or transported, it must not be lifted by the attachments. This includes the seat belt, seat forward/back adjustment lever, seat height adjustment lever and seat trims. This is necessary to prevent damage.

- Use the right hand to grasp between the backrest and the seat cushion. Use the left hand to grasp the front end of the seat cushion and lift the seat out of the vehicle.

Installing

- Use the right hand to grasp between the backrest and the seat cushion. Use the left hand to grasp the front end of the seat cushion and lift the seat into the vehicle.

- Position the seat via the centering pin on the tunnel side in the corresponding opening in the floor.

- Tilt the seat backward against the seat cushion of the second row.

- Remove the airbag adapter (VAS 6281) or airbag adapter (VAS 6282).

- Secure the harness connectors of the wiring harnesses according to the vehicle equipment.

- Turn on the ignition.

Make sure no one is in the vehicle.

- Connect the battery.

- Position the seat via the centering pin on the tunnel side in the corresponding opening in the floor.

- Position the seat as far back as possible using the forward/back adjustment.

- Tighten the front bolt on the tunnel side - 1 - (50 Nm).

- Tighten the front bolt on the door sill side - 4 - (50 Nm).

- Position the seat as far forward as possible using the forward/back adjustment.

- Tighten the rear bolt on the tunnel side - 2 - (50 Nm).

- Tighten the rear bolt on the door sill side - 3 - (50 Nm).






When installing seat, if a thread in mounting plate of seat crossmember was damaged, a reworking of the damaged thread is forbidden. In this case, mounting plate of seat crossmember must be replaced.

If there is damage to threads in mounting plate of seat crossmember:

- Replace the affected seat crossmember mounting plate.