Deployment factors
It is not possible to generally determine which deployment conditions apply to
the airbag system in every situation. An important role is played by factors such
as the type of object that the vehicle hits (hard, soft), the impact angle, vehicle
speed, etc.
A decisive factor for the deployment of the airbags is the deceleration which oc-
curs. The control unit analyses the nature of the collision and activates the rele-
vant restraint system. If the vehicle deceleration which occurs and is measured
during the collision remains below the prescribed reference values specified in
the control unit, the airbags are not deployed although the vehicle may well suf-
fer severe damage to the bodywork as a consequence of the accident.
The following will be deployed in the event of a severe frontal collision:
› driver’s front airbag;
› passenger’s front airbag;
› driver’s knee airbag.
The following will be deployed in the event of a severe side collision: › front side airbag on the side of the accident;
› rear side airbag on the side of the accident;
› head airbags on the side of the accident.
In the event of an accident in which the airbags are deployed:
› the interior lighting comes on (if the switch for the interior light is in the door
contact position),
› the hazard warning light is switched on;
› all the doors are unlocked;
› the battery in the boot is disconnected,
› the fuel supply to the engine is interrupted. Note
A grey white or red, non-harmful gas is released when the airbag is inflated. This
is perfectly normal and is not an indication of a fire in the vehicle. Ð Front airbags
Fig. 141
Driver airbag in the steering wheel/front passenger airbag in the
dashboard Fig. 142
Safe distance to steering wheel/inflated airbags.
In the event of a severe frontal collision, the front airbag system offers additional
protection for the head and chest area of the driver and front passenger.
The front airbag for the driver is housed in the steering wheel » Fig. 141 - .
The front airbag for the front seat passenger is located in the dash panel above
the stowage compartment
- » Fig. 141.
If the airbags are deployed, the airbags are filled with a propellant gas and infla-
ted in front of the driver and front passenger » Fig. 142 - . The forward move-
ment of the driver and of the front passenger is cushioned when they make con-
tact with the fully inflated airbag and the risk of injury to head and chest is thus
reduced. £
149
Airbag system
