G-Class Owner's Manual - Mercedes G-Class, G-Wagon, G500, G55 ...

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The belt tensioners and airbags are only
triggered if the seat belt is fastened. On
the front-passenger side, the airbag is
only triggered if the front-passenger
seat occupation recognition system detects
that the front-passenger seat is
occupied or the seat belt tongue is engaged
in the buckle.
The activation thresholds for the belt tensioners
and airbags are variable and are
adapted to the rate of vehicle deceleration.
This process is pre-emptive in nature as
airbag deployment must take place during
the collision and not after it has happened.
Airbag deployment depends on various
factors, such as:
the initial rate of deceleration or acceleration
the duration and direction of the deceleration
or acceleration
the distribution of the force during a
collision
the collision angle
the deformation characteristics of the
vehicle
the characteristics of the object with
which the vehicle collides, e.g. the other
vehicle
Factors which can only be seen and measured
after the collision has taken place
cannot be taken into account when triggering
the airbag and are not decisive for this.
Nur fuer internen Gebrauch
Safety
Restraint systems
If necessary, they can be used to help reconstruct
the sequence of events in an accident.
These factors include:
the speed of the vehicle at the time of
the collision
injuries to the vehicle occupants
vehicle deformation
The vehicle may be considerably deformed
without an airbag being triggered, e.g. if
only relatively easily-deformable vehicle
parts are affected by the collision and the
required deceleration threshold is not
reached. On the other hand, airbags may
be triggered even though the vehicle only
displays minor deformation, if, for example,
rigid vehicle parts such as a longitudinal
member are affected by the collision
thus causing vehicle deceleration to
exceed the pre-determined threshold.
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