Removing and Installing Head Airbag Unit

Removing And Installing Head Airbag Unit

Preliminary work
1. Disconnect battery.
2. Remove A-pillar trim.
3. Remove the B-pillar trim.
4. Remove C-pillar trim.
5. Remove D-pillar trim.
6. Remove rear roof trim panel.

Removing head airbag unit

WARNING:
Danger of injury and material damage if airbag units are not handled correctly.
- Always observe the safety regulations for handling airbag units
- If removed for an extended period, the airbag unit must be kept in a locked place.
- Remove ignition key. Disconnect battery. Route or isolate ground strap so that all contact with a ground carrier (e.g. body, seat frame) is avoided.
- After the battery is disconnected, always wait for 1 minute before disconnecting the airbag plugs.







1. Unclip the plug socket from the body (-arrow A-).







2. Press down the lock on the plug socket -arrow B- and maintain in this position.







3. Release -arrow a- and pull off -arrow C- connector.







4. Unscrew the three fastening screws -1- and remove the deformation element.







NOTE: The fastening clips must not be damaged when removing the head airbag units.


5. Unscrew the four rear fastening screws -2- from the body in the following order: -a to d-. Hold the airbag unit and carefully pull out the fastening clips out of the body using a screwdriver.







6. Unscrew the four front fastening screws -2- from the body in the following order: -e to h-. Hold the head airbag unit and carefully pull out the fastening clips from the body with a screwdriver.







7. Unscrew the three middle fastening screws -2- from the body in the following order: -i to k-. Hold the head airbag unit and carefully pull out the fastening clips from the body with a screwdriver.







8. Remove the head airbag unit below the deformation element -3- and take it out.

Installing head airbag unit

WARNING:
Danger of injury caused by loose, safety-related bolts.
- Always replace fastening screws of the after customer service and reworking.
- Never make alterations to the micro-encapsulated screws, which have a negative effect on the bond (e.g. using lubricant, loosening bolts and screwing them down again).

1. Clip in the head airbag unit in the area of the middle fastening screws -2- in the order -a to c- and then tighten the fastening screws -2- in the order -a to c-. - Tightening torque: 2.5 ft lb.







NOTE: The head airbag unit must be pushed -3- completely enter the deformation element -3- in the area of the deformation element.







2. Clip in the head airbag unit in the area of the front fastening screws -2- in the order -d to g- and then tighten the fastening screws -2- in the order -d to g-. - Tightening torque: 3.5 (2.5 ft lb.) Nm







3. Clip in the head airbag unit in the area of the rear fastening screws -2- in the order -h to k- and then tighten the fastening screws -2- in the order -h to k-. - Tightening torque: 3.5 (2.5 ft lb.) Nm







NOTE: Make sure that the head airbag unit is not pinched.


4. Position the deformation element and tighten with the fastening nuts -1-. - Tightening torque: 2.5 ft lb.







5. Insert plug to plug socket -arrow A- until the lock is felt to engage -arrow B-.







6. Clip plug socket into the body -arrow C-.







Subsequent work
1. Install rear roof trim panel.
2. Install D-pillar trim.
3. Install C-pillar trim.
4. Install B-pillar trim.
5. Install A-pillar trim.
6. Carry out work instruction after disconnecting the battery.