Purpose And Function Of The Restraint System - Mercedes-Benz GLE 2022 Operator's Manual

118 Occupant safety – Purpose and function of the restraint system

Purpose and function of the restraint system

Overview of deployment situations (restraint sys-
tem)
Make sure that the following prerequisites in par-
ticular have been met so that the components of
the restraint system are able to provide the inten-
ded level of protection:
Sit correctly ( page 108).
/
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Fasten the seat belt correctly (
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Function of the seat belt warning lamp
-
( page 111).
/
Function of the rear seat belt status dis-
-
play ( page 111).
/
The 6 restraint system warning lamp is not
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lit up after the self-test ( page 110).
/
The PASSENGER AIR BAG indicator lamps dis-
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play the correct status of the front passenger
airbag ( page 112).
/
Depending on the detected deployment situation,
the components of the restraint system can be
activated or deployed independently of each
other:
Seat belt tensioner: frontal impact, rear
R
impact, side impact, rollover
Driver's airbag, front passenger airbag: frontal
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impact
Knee airbag: frontal impact
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page 109).
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Side airbag: side impact
R
Window airbag: side impact, rollover, frontal
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impact
PRE-SAFE
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The installation location of an airbag is identified
by the AIRBAG symbol (
Observe the information on the function of the
restraint system (
Information on how the restraint system works
How the restraint system functions depends on
the severity of the impact detected and the appa-
rent type of accident.
®
Impulse Side: side impact
page 123).
/
page 118).
/
F167 0009 02
For more information about types of accidents,
see "Overview of deployment situations"
( page 118).
/
The activation thresholds for the components of
the restraint system are determined based on the
evaluation of the sensor values measured at vari-
ous points in the vehicle. This process is pre-emp-
tive in nature. The triggering/deployment of the
components of the restraint system must take
place in good time at the start of the collision.
Factors which can only be seen and measured
after 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 significantly without
an airbag being deployed. This is the case if 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 defor-
mation. If very rigid vehicle parts such as longitu-
dinal members are hit, this may result in suffi-
ciently high levels of vehicle deceleration.