Passenger Airbag Unit

Passenger Airbag Unit

Removing


Follow all Safety Precautions when working on an airbag. Refer to => [ Airbags Safety Precautions ] Airbags Safety Precautions

- Disconnect the battery.

- Remove right side instrument panel cover. Refer to => [ Instrument Panel Side Covers ] Instrument Panel Side Covers

- Remove the glove compartment lamp (W6).

- Remove the glove compartment. Refer to => [ Glove Compartment ] Glove Compartment


Electrostatic discharges can lead to an unintended deployment of the airbag. Therefore the technician must discharge static electricity from the body before separating the ignition and ground wiring. This is done, for example, by briefly touching the body or the door striker or pin.

- Disconnect wiring harness from front passenger side airbag.

- Remove the two bolts - 1 - (9 Nm).

- Remove the two bolts - 2 - and - 3 - (9 Nm).

- Remove the passenger airbag - 4 - from the mounts.






Installation

- Install in reverse order of removal.

• Insert the screws - 2 - and - 3 - (9 Nm) with locking compound D 197 300 A1.






Check whether an additional ground cable must be routed in the vehicle:


If a passenger airbag is replaced, an additional ground cable must be routed in the vehicle in some cases.

- Check whether a ground cable is routed on the passenger airbag housing:

• With a passenger airbag with ground line - 1 -, the wiring harness - 2 - is a three-conductor harness, and in addition, another cable - 3 - is secured on the threaded pins - 4 -.

• With a passenger airbag without ground line - 5 -, the wiring harness - 6 - is a two-connector harness and no additional cable is secured on the threaded pins - 7 -.






On a passenger airbag without ground cable, route an additional ground cable in vehicle:

• For the following work, use a cable (cross section 1 mm, length 600 mm) from the Wiring Harness Repair Kit (VAS 1978) or Wiring Harness Repair Kit (VAS 1978A).

- Remove the right B-pillar upper trim. Refer to => [ B-Pillar Upper Trim, Loosening from Mounts and Securing ] B-Pillar Upper Trim, Loosening from Mounts and Securing

- Remove the lower trim on the right B-pillar. Refer to => [ Lower B-Pillar Trim ] Lower B-Pillar Trim

- Remove passenger side A-pillar trim. Refer to => [ Passenger Side Lower A-Pillar Trim ] Passenger Side Lower A-Pillar Trim

- Secure end of ground line with bolt - 1 - on right side of passenger airbag.

- Route ground line correctly to right side of passenger footwell.

• Lengthen the ground cable as needed with suitable instruments from the Wiring Harness Repair Kit (VAS 1978) or the Wiring Harness Repair Kit (VAS 1978A).

- Secure other end of ground cable to ground pin - 2 -.






- Turn on the ignition.


Make sure that no persons are in the vehicle.

- Connect the battery.