5.3.1. Adaptive Driver's airbag

The task of the driver's airbag is to decrease the risk of injury for the driver in the event of a head-on crash. The driver's airbag is located in the impact plate on the steering wheel. The driver's airbag is equipped with a gas generator.

Fig 1: Identifying Steering Wheel With Driver's Airbag

Courtesy of BMW OF NORTH AMERICA, INC.

An active vent valve and a two-stage generator are installed which, depending on the detected crash severity, the stages can be triggered with different timing.

Fig 2: Identifying Vent Valve And Gas Generator On Steering Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

COMPONENTS DESCRIPTION CHART

Index	Explanation
1	Gas generator with exhaust vents
2	Actuator for vent valve

Fig 3: Identifying Adaptive Driver's Airbag Connections (Rear View)

Courtesy of BMW OF NORTH AMERICA, INC.

COMPONENTS DESCRIPTION CHART

Index	Explanation
1	Connection of the squib for the active vent valve
2	Connection of the ignition squib for the first stage of the driver's airbag
3	Connection of the ignition squib for the second stage of the driver's airbag

NOTE: The Active driver's and passenger's airbags are equipped with an active vent valves.