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Occupant safety
60
BAS Plus (Y page 70) or the PRE-SAFE
Brake (Y page 76) is strongly intervening
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critical dynamic driving situations, e.g.
when the vehicle is understeering or
oversteering because it has exceeded its
physical limitations or in case of evasive
steering maneuvers at speeds above
approximately 85 mph (140 km/h)
When you are driving faster than 20 mph
(30 km/h), PRE-SAFE
®
takes the following
measures in such situations:
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The front seat belts are pre-tensioned
automatically.
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If the passenger seat is in an unfavorable
position, it will be adjusted to a better
position.
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If the vehicle is equipped with power
adjustable rear seats and the passenger
outer seats are in an unfavorable position,
they will be adjusted to a better position.
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The system increases the air pressure in
the air pockets (on the sides of the seat
cushion and backrest) of the multicontour
and/or drive-dynamic front seats.
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If the vehicle is equipped with multicontour
rear seats, the system increases the air
pressure in the air pockets (on the sides of
the seat backrest) of the multicontour rear
outer seats.
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If the vehicle is in a critical dynamic driving
situation, the door windows and the tilt/
sliding sunroof or panorama roof also
closes until only a small gap remains.
If the closing procedure of the door windows,
tilt/sliding sunroof, or panorama roof, is
blocked, the door windows, tilt/sliding
sunroof, or panorama roof, will stop and open
slightly.
Once the hazardous situation is over without
an accident occurring, PRE-SAFE
®
loosens
the seat belt pre-tension and decreases the
air pressure in the air pockets of the
multicontour and/or drive-dynamic seats.
You can readjust all of the settings made by
PRE-SAFE
®
.
If the seat belts do not release:
X
Adjust the seat backrest to the rear until
the seat belt tension is diminished.
The locking mechanism releases.
!
When adjusting the seat backrests, make
sure there are no items behind the seats.
Otherwise, you could damage the seats.
Active head restraints
The active head restraints are intended to
offer the driver and front passenger increased
protection from whiplash-type injuries. In the
event of a rear-end collision, the active head
restraints on the driver’s and front
passenger’s seat are designed to move
forward in the direction of travel, providing
the head with increased support earlier on in
the collision sequence. The active head
restraints move forward whether the seat is
occupied or not.
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Warning!
Do not attach any objects (e.g. hangers) to
the head restraint posts. Otherwise, the
active head restraints may not be able to
function properly or offer the intended
degree of protection they were designed for
in the event of a rear-end collision.
If the active head restraints have been
triggered in an accident, the active head
restraints must be reset. Otherwise, the
active head restraints cannot offer any
additional protection in the event of another
rear-end collision.
For information on resetting the activated
active head restraints, see “Resetting
activated head restraints” (Y page 562).
Safety and security