Sedan

Brief Description

Overview, 4D







- ACM on the exhaust tunnel between the front seats (331)
- Side impact sensor (328D, 328P, 328RD, 328RP)
- Front impact sensor on the bumper rail under the radiator fairing (332FL/332FR)
- Seat position sensor in the seat rail (669D, 669P)
- Dual-stage driver airbag in the steering wheel (333D)
- Dual-stage passenger airbag in the dashboard (333P)
- Side airbag in the front seat (333Db, 333Pb)
- Belt pretensioner (236D, 236P)
- Inflatable curtain, under the headlining, (732D, 732P)
- Steering wheel contact roller (336) (Column integration unit (703))
- Seat-belt buckle (70D, 70P)
- MIU (540)
- SID (541)
- ICM (736)
- BCM (707)

Description, 4D
The airbag system, together with the seat-belts, anti-submarining protection, steering column assembly and SAHR (Saab Active Head Restraint), is a complete system which minimises driver and passenger injury in the event of a collision.

Equipment
The car is equipped with dual-stage driver and passenger airbags and side airbags in the front seats. There are also belt tensioners for the driver and passenger positions as well as an inflatable curtain on either side.

Location
The driver airbag is located in the steering wheel and the passenger airbag is located in the dashboard above the glovebox. The side airbags are placed inside the backrest upholstery fabric on the outer edges of the front seats. The belt tensioners are located in the door sills by the B-pillars. The inflatable curtain is located between the A and C-pillar under the headlining on the LH and RH sides.

Checking and activation
The entire system is controlled by an airbag control module (ACM) located on the exhaust tunnel between the front seats. Using external sensors and integrated acceleration sensors, the control module senses when a collision occurs. The control module applies voltage to the electric detonators in those airbags and belt tensioners which can minimise driver and passenger injury. The electric detonators activate gas generators that inflate the airbags.

Driver and front passenger seat-belts are equipped with explosive belt tensioners which pull the seat-belts taut should a collision occur.

In order to prevent the driver from sliding under the dashboard during a collision, a knee shield is located under the dashboard on the driver's side.

The glove box acts as a knee shield for the front seat passenger.

If a side impact occurs, an inflatable curtain is deployed in order to protect the heads of the front and rear seat passengers. A side airbag is also activated for the driver or front seat passenger on the side of the impact.