GF91.60-P-4040GZ Rear Sidebag Component Description

GF91.60-P-4040GZ Rear sidebag component description
- 164 up to Model Year 8

Component Identification:

The left or right 2nd row sidebag with the left 2nd row sidebag squib (R12/11) or right 2nd row sidebag squib (R12/12) is located in the respective lateral support cushion of the left or right 2nd row and protects the rear occupants against injury in the event of a side impact in the area of the door and C-pillar.

The sidebag unit is located in a housing which contains t he folded up airbag, the gas generator and the squib.

Located on the front side of the housing is a predetermined fracture point to allow the airbag to expand. The electrical connection for the squib is located at the rear of the housing.

Function
In the event of a side impact, the restraint systems control unit (N2/7) together with the driver sidebag sensor (A53) or front passenger sidebag sensor (A54) measures the acceleration in the area of the B-pillar.

If the triggering threshold is exceeded, then the sidebag in question is triggered by an electrical ignition pulse.

The squib ignites the solid fuel in a fuel chamber.

The solid fuel is burned off. A bursting disk bursts open and the compressed gas escapes from the pressure container and is routed over discharge holes into the airbag.

As the gas flows into the bag under pressure, the airbag rapidly inflates, tearing open the sidebag housing and thrusting through the seam in the lateral support cushion and into the passenger compartment. The airbag reaches its full volume within approximately 20 msec.

The bag begins to deflate immediately after reaching its maximum volume. The gas escapes through a filter. The sidebag collapses.