RResestrtraint systaint system functionalityem functionality
When thevehicle is switched on, a self-test is per-
formed, during which the6restraint system
warning lamp lights up. It goes out no later than a
few seconds aer thevehicle is started. The com-
ponents of therestraint system are then func-
tional.
Malfunctioning rMalfunctioning resestrtraint systaint systemem
A malfunction has occurred in therestraint sys-
tem if:
RThe 6restraint system warning lamp does
not light up when thevehicle is switched on
RThe 6restraint system warning lamp lights
up continuously or repeatedly during a journey
&W
WARNINGARNING Risk of injury due to malfunc-
tions in therestraint system
Components in therestraint system may be
activated unintentionally or not deploy as plan-
ned in an accident.
#Have therestraint system checked and
repaired immediately at a qualied spe-
cialist workshop.
FFunction of tunction of the rhe resestrtraint systaint system in an accidentem in an accident
How therestraint system works depends on the
severity of the impact detected and the apparent
type of accident:
RFrontal impact
RRear impact
RSide impact
RRollover
The activation thresholds forthe components of
therestraint system are determined based on the
evaluation of the sensor values measured at vari-
ous points in thevehicle. This process is pre-emp-
tive in nature. The triggering/deployment of the
components of therestraint system must take
place in good time at the start of the collision.
Factors which can only be seen and measured
aer a collision has occurred cannot play a deci-
sive role in airbag deployment. Nor do they pro-
vide an indication of airbag deployment.
The vehicle may be deformed signicantly without
an airbag being deployed. This is the case if only
parts which are relatively easily deformed are
aected and therate of vehicle deceleration is
not high. Conversely, an airbag may be deployed
even though thevehicle suers only minor defor-
mation. If very rigid vehicle parts such as longitu-
dinal members are hit, this may result in su-
ciently high levels of vehicle deceleration.
Depending on the detected deployment situation,
the components of therestraint system can be
activated or deployed independently of each
other:
REmergency Tensioning Device: frontal impact,
rear impact, side impact, rollover
RDriver's airbag, front passenger airbag: frontal
impact
RKnee airbag: frontal impact
RSide airbag: side impact
RWindow curtain airbag: side impact, rollover,
frontal impact
3838 Occupant safety
