WIS Document: 34310

| | Steering wheel centre pad (airbag module): The steering wheel airbag contains a gas generator and airbag envelope. The gas generator is riveted and bolted to a sheet metal bracket. The airbag is protected by a plastic cover with a fracture line which is mounted on the metal bracket. The airbag has a volume of 70 litres. The steering wheel airbag is connected between pins 16 and 14 on the control module. A special contact roller distributes test and detonation current to the steering wheel airbag. | Steering wheel airbag gas generator The gas generator consists of an aluminum casing divided into a central chamber and two annular chambers. The center chamber contains an electric detonator and an explosive charge which is connected via passages to the inner annular chamber. The inner annular chamber contains a fuel that generates a gas when it is burned, and which via passages reaches a filter in the outer annular chamber. The filter removes particles from the gas before it passes out to the air bag.