Restraints; Neck-Pro Active Front Head Restraints - Mercedes-Benz 2010 M-Class Operator's Manual

®
The PRE-SAFE system takes preventive
measures to better protect the occupants
from the possibility of personal injuries in the
following hazardous situations:
emergency braking maneuvers with the
R
Brake Assist System (BAS) (
activated
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)
®
PRE-SAFE takes the following measures
when it is activated:
The front seat belts are pre-tensioned
R
automatically.
Vehicles with front passenger seat memory
R
function: If the passenger seat is in an
unfavorable position, the seat will be
adjusted to a position that seeks to better
protect the occupant.
If the vehicle is in a critical dynamic driving
R
situation, the door windows close, except
for a minimal gap that remains open.
Vehicles with power tilt/sliding sunroof: If
R
the vehicle is in a critical dynamic driving
situation, the tilt/sliding sunroof 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 seat
belt pre-tensioning is deactivated. All of the
®
PRE-SAFE settings can be re-adjusted
following the critical driving event.
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.
!
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
Y page 63) function as an integrated comfort feature of
PRE-SAFE
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 on the front seats are designed to
move forward 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 whether the seats are occupied
or not.
G
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
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.
Contact an authorized Mercedes-Benz Center
for availability.
When the NECK-PRO active front head
restraints have been triggered in an accident,
the NECK-PRO active front head restraints
Occupant safety
When moving the seats, make sure there
®
, see ( Y page 51).
Warning!
Warning!
53
Z