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System Overview: Notes

The early SRS consists of the following components:

Driver's air bag unit with gas generator - mounted in the center of the steering wheel.
Passenger's front air bag was added beginning with 1993 model year E32/E31.
Contact ring - under the steering wheel
Front Impact Sensors - mounted on the left and right wheel housings.
Control module.
SRS warning lamp.

Fig 1: Identifying Driver Air Bag Components
Courtesy of BMW OF NORTH AMERICA, INC.