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the BAS PLUS (
Y
page 60) or the PRE-
®
SAFE
Brake (
Y
page 63) is strongly
engaging
when the radar sensors recognize the
R
immediate risk of collision in certain
situations (vehicles with DISTRONIC PLUS)
critical dynamic driving situations, e.g.
R
when the vehicle has been caused to
understeer or oversteer because it has
exceeded its physical limitations or in case
of evasive steering maneuvers at speeds
above approximately 85 mph (140 km/h)
®
The PRE-SAFE
system takes the following
measures when it is activated:
The front seat belts are pre-tensioned
R
automatically.
If the front passenger seat is in an
R
unfavorable position, the seat will be
adjusted to a position that seeks to better
protect the occupant.
The system increases the air pressure in
R
the air pockets (on the sides of the seat
cushion and backrest) of the multicontour
front seats.
If the vehicle is in a critical dynamic driving
R
situation, the door windows and the
panorama roof with tilt/sliding panel also
closes, except for a minimal gap that
remains open.
If the closing procedure of any of these
elements is blocked, it will stop and open
slightly.
Once the hazardous situation no longer exists
and an accident has been avoided, the PRE-
®
SAFE
system loosens the seat belt pre-
tension and decreases the air pressure in the
air pockets of the multicontour front seats.
®
All of the PRE-SAFE
re-adjusted following the critical driving
event.
system settings can be
Occupant safety
If the seat belts do not release:
X
Adjust the seat backrest or seat slightly to
the rear until the seat belt tension is
reduced.
The locking mechanism releases.
!
When moving the seats, make sure there
are no items in the footwell or behind the
seats. Otherwise, you could damage the
seats and/or the items.
For information on the seat belt adjustment
function as an integrated comfort feature of
®
the PRE-SAFE
system, see (
NECK-PRO active front head
restraints
The NECK-PRO active front 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 NECK-PRO active front head
restraints are designed to move forward and
up in the direction of travel. They thus provide
the head with increased support earlier on in
the collision sequence. The NECK-PRO active
front head restraints will move forward and
up whether the seats are occupied or not.
G
Warning!
Do not attach any objects (e.g. hangers) to the
head restraint posts. Otherwise, the NECK-
PRO active front 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.
G
Warning!
Only use seat or head restraint covers which
have been tested and approved by Mercedes-
Benz for your vehicle model.
Using other seat or head restraint covers may
interfere with or prevent the activation of the
NECK-PRO active front head restraints and/
or the deployment of the front side impact air
bags or pelvis air bags.
51
Y
page 49).
Z
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