Mercedes-Benz Actros 2017, Operating Instructions Manual

Page: 56 / 436

and the driver's airbag in the event of a frontal
collision.
The belt tensioner can only be triggered if:
R
the ignition is switched on
R
the components of the restraint system are
operational. You can find further information
under "Restraint system warning lamp"
(
Y
page 49)
The activation threshold for the belt tensioner
and driver's airbag is determined by evaluating
the cab deceleration. This process is pre-emp-
tive in nature. The triggering process must take
place in good time at the start of the collision.
The cab's rate of deceleration and the direction
of the force are essentially determined by:
R
the distribution of the force during the impact
R
the collision angle
R
the deformation characteristics of the cab
R
the characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after the collision has occurred do not play a
decisive role in the deployment of an airbag. Nor
do they provide an indication of airbag deploy-
ment.
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 deceleration is not
high. Conversely, an airbag may be deployed
even though the vehicle suffers only minor
deformation. This is the case if, for example,
very rigid vehicle parts such as longitudinal body
members are hit, and sufficient deceleration
occurs as a result.
Children in the vehicle
Important safety notes
If a child younger than twelve years old and
under 1.50 m in height is travelling in the vehi-
cle:
R
always secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child.
R
be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions.
G
WARNING
If you leave children unattended in the vehi-
cle, they could set the vehicle in motion by, for
example:
R
releasing the parking brake
R
shifting the transmission into neutral
R
starting the engine
They could also operate the vehicle's equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
G
WARNING
If persons (particularly children) are exposed
to heat or cold for a prolonged period, there is
a risk of serious or even fatal injuries. Never
leave persons (particularly children) unatten-
ded in the vehicle.
G
WARNING
If the child restraint system is placed in direct
sunlight, the parts could become very hot.
Children could be suffer burns by touching
these parts, in particular on the metallic parts
of the child restraint system. There is a risk of
injury.
If you and your child leave the vehicle, always
make sure that the child restraint system is
not in direct sunlight. Cover it with a blanket,
for example. If the child restraint system has
been exposed to direct sunlight, leave it to
cool down before securing the child in it.
Never leave children unattended in the vehi-
cle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting
properly. Particular attention must be paid to
children.
Observe the safety notes on the seat belt
(
Y
page 50) and the information on the correct
use of the seat belt (
Y
page 51).
54
Children in the vehicle
Safety