36 Occupant safety
Function of the restraint system in an acci‐
dent
tem warning lamp lights up. It goes out no later
than a few seconds after the vehicle is started.
The components of the restraint system are then
functional.
only parts which are relatively easily deformed
are affected and the rate of vehicle deceleration
is not high. Conversely, an airbag may be
deployed even though the vehicle suffers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, this may
result in sufficiently high levels of vehicle decel‐
eration.
Depending on the detected deployment situa‐
tion, the components of the restraint system can
be activated or deployed independently of each
other:
How the restraint system works is determined by
the severity of the impact detected and the type
of accident anticipated:
Malfunctioning restraint system
R
Frontal impact
A malfunction has occurred in the restraint sys‐
tem if:
R
Rear impact
R
Side impact
R
the 6 restraint system warning lamp does
not light up when the ignition is switched on
R
Only for certain countries: rollover
The activation thresholds for the components of
the restraint system are determined based on
the evaluation of the sensor values measured at
various points in the vehicle. This process is pre-
emptive in nature. The triggering/deployment of
the components of the restraint system must
take place in good time at the start of the colli‐
sion.
Factors which can only be seen and measured
after a collision has occurred do not play a deci‐
sive role in the deployment of an airbag. Nor do
they provide an indication of airbag deployment.
R
the 6 restraint system warning lamp
R
Front seat belt tensioner: frontal impact, rear
lights up continuously or repeatedly during a
journey
impact, side impact, rollover1
R
Rear seat belt tensioner: frontal impact, rear
&
WARNING Risk of injury due to malfunc‐
tions in the restraint system
impact, rollover1
R
Driver's airbag, front passenger airbag: fron‐
tal impact
Components in the restraint system may be
activated unintentionally or not deploy as
intended in an accident.
R
Knee airbag: frontal impact
R
Side airbag: side impact
#
Have the restraint system checked and
Window airbag: side impact, rollover1, frontal
impact
R
repaired immediately at a qualified spe‐
cialist workshop.
The vehicle may be deformed significantly with‐
out an airbag being deployed. This is the case if
1) Only for certain countries.
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