Mercedes-Benz M-Class Owner's Manual page 49

Occupant safety
46
®
PRE-SAFE intervenes:
in emergency braking situations, e.g. if BAS
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is activated or for vehicles with DISTRONIC
PLUS, BAS PLUS intervenes powerfully
if the radar sensor system detects an immi-
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nent danger of collision in certain situa-
tions (on vehicles with DISTRONIC PLUS)
in critical driving situations, e.g. when phys-
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ical limits are exceed and the vehicle under-
steers or oversteers severely
®
PRE-SAFE takes the following measures
depending on the hazardous situation detec-
ted:
the front seat belts are pre-tensioned.
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vehicles with the memory function: it
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adjusts the front-passenger seat if it is in
an unfavourable position.
if the vehicle skids, the sliding sunroof/
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panorama sliding sunroof and the side win-
dows are closed so that only a small gap
remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE
the belt pretensioning. All settings made by
®
PRE-SAFE can then be reversed.
If the seat belts are not released:
Move the backrest or seat back slightly, but
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only when the vehicle is stationary.
The belt pretensioning is reduced and the
locking mechanism is released.
G
WARNING
When adjusting the seat, make sure that
nobody can become trapped.
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is a risk that the seats
and/or the objects could be damaged.
More information about seat-belt adjust-
ment, a convenience function integrated into
®
PRE-SAFE , can be found in the "Seat-belt
adjustment" section (
®
slackens
page 48).
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Seat belts
Important safety notes
Seat belts are the most effective means of
restraining the movement of vehicle occu-
pants in the event of an accident. This
reduces the risk of vehicle occupants coming
into contact with parts of the vehicle interior.
G
WARNING
A seat belt which is not worn correctly, or
which has not been engaged in the seat belt
buckle correctly, cannot perform its intended
protective function. Under certain circum-
stances, this could cause severe or even fatal
injuries in the event of an accident.
Make sure that all occupants – in particular,
pregnant women – wear their seat belt cor-
rectly at all times.
The seat belt must fit snugly on your body
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and must not be twisted. Therefore, avoid
wearing bulky clothing, e.g. a winter coat.
The shoulder belt section must be routed
across the centre of your shoulder – on no
account across your neck or under your
arm – and pulled tight against your upper
body. The lap belt must always pass across
your lap as low down as possible, i.e. over
your hip joints – not across your abdomen.
If necessary, push down the belt strap
slightly and then retighten it in the roll-up
direction.
Do not route the belt strap across sharp
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edges or fragile objects, especially if these
are located on or in your clothing, e.g. spec-
tacles, pens, keys, etc. The seat belt strap
could be damaged and tear in an accident,
and you or other vehicle occupants could
be injured.
Only one person should use each seat belt
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at any one time. Children must never travel
sitting on the lap of other occupants. It
would not be possible to restrain the child
in the event of a sudden change in direc-
tion, braking or an accident. This could