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Function of the restraint system in the event
of an accident
How the restraint system works depends on the
severity of the impact detected and the apparent
frontal impact.
The activation threshold for the components of
the restraint system is determined by evaluating
the cab deceleration. This evaluation is pre-emp‐
tive in nature. The triggering/deployment process
should take place in good time at the start of the
collision.
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.
The vehicle may be deformed significantly with‐
out the airbag being deployed. This is the case if
only parts which are relatively easily deformed
are affected and the rate of cab deceleration is
not high. Conversely, the airbag may be deployed
even though the vehicle suffers only minor defor‐
mation. If very rigid vehicle parts such as longitu‐
dinal members are affected, for example, the cab
deceleration may be high enough for this to hap‐
pen.
When a deployment situation is detected, the
seat belt tensioner for the seat belt of the driver's
seat and the driver's airbag are deployed
together.
& WARNING Rick of burns from hot airbag
components
The airbag parts are hot after an airbag has
been deployed.
Do not touch the airbag parts.
#
Have a deployed airbag replaced at a
#
qualified specialist workshop as soon as
possible.
Mercedes-Benz recommends that you have the
vehicle towed to a qualified specialist workshop
after an accident. Take this into account particu‐
larly if a seat belt tensioner or airbag was
deployed.
If the seat belt tensioners or the driver's airbag
are deployed, you will hear a bang, and a small
amount of powder may be released:
the bang will not usually affect your hearing.
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in general, the powder released is not hazard‐
R
ous to health but may cause short-term
Occupant safety
breathing difficulties to persons suffering
from asthma or other pulmonary conditions.
Provided it is safe to do so, leave the vehicle
immediately or open the window in order to
prevent breathing difficulties.
Seat belts
Protection provided by the seat belt
Always fasten your seat belt correctly before
starting a journey. A seat belt can only provide
the best level of protection if it is worn correctly.
& WARNING Risk of injury or death due to
incorrectly fastened seat belt
If the seat belt is not worn correctly, it cannot
perform its intended protective function.
In addition, an incorrectly fastened seat belt
can also cause injuries, for example, in the
event of an accident or when braking or
changing direction suddenly.
Always ensure that all vehicle occupants
#
have their seat belts fastened correctly
and are sitting properly.
Always observe the notes on adjusting the seats
(
page 55) and adjusting the steering wheel
/
(
page 67).
/
In order for the correctly worn seat belt to pro‐
vide the intended level of protection, each vehicle
occupant must observe the following information:
The seat belt must not be twisted and must fit
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tightly and snugly across the body.
The seat belt must be routed across the
R
centre of the shoulder and as low down
across the hips as possible.
The shoulder section of the seat belt should
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not touch your neck nor be routed under your
arm or behind your back.
Avoid wearing bulky clothing, e.g. a winter
R
coat.
Push the lap belt down as far as possible
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across your hips and pull tight with the shoul‐
der section of the belt. Never route the lap
belt across your abdomen.
Pregnant women must also take particular
care with this.
Never route the seat belt across sharp, poin‐
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ted, abrasive or fragile objects.
35
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