Mercedes-Benz E-Class Sedan 2012 Operator's Manual page 52

Occupant safety
50
®
PRE-SAFE (preventative occupant
protection)
G
WARNING
®
The PRE-SAFE
an accident on vehicle occupants, as long as
their seat belts have been fastened correctly.
Although your vehicle is equipped with a PRE-
®
SAFE system, the possibility of injury in the
event of an accident cannot be ruled out. You
should therefore always drive carefully and
adapt your driving style to the prevailing road,
weather and traffic conditions.
®
PRE-SAFE takes preemptive measures to
protect occupants in certain hazardous
situations.
®
PRE-SAFE intervenes:
in emergency braking situations, e.g. if BAS
R
is activated or, in vehicles with DISTRONIC
PLUS, BAS PLUS intervenes powerfully
if the radar sensor system detects an
R
imminent danger of collision in certain
situations (on vehicles with DISTRONIC
PLUS)
in critical driving situations, e.g. when
R
physical limits are exceed and the vehicle
understeers or oversteers severely
®
PRE-SAFE takes the following measures
depending on the hazardous situation
detected:
the front seat belts are pre-tensioned.
R
it adjusts the front-passenger seat if it is in
R
an unfavorable position.
the air pressure in the side bolsters of the
R
seat cushion and seat backrest of the front
active multicontour seats is increased.
if the vehicle skids, the sliding sunroof/
R
panorama roof with power tilt/sliding
panel and the side windows are closed so
that only a small gap remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE
the belt pretensioning. The air pressure in the
side bolsters on the active multicontour seat
system reduces the impact of
®
slackens
is reduced again. All settings made by PRE-
®
SAFE can then be reversed.
If the seat belts are not released:
X
Move the backrest or seat back slightly, but
only when the vehicle is stationary.
The belt pretensioning is reduced and the
locking mechanism is released.
G
WARNING
Make sure that nobody can become trapped
as you adjust the seat.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
More information about seat-belt
adjustment, a convenience function
integrated into PRE-SAFE
the "Seat-belt adjustment" section
( Y page 54).
NECK-PRO head restraints
The NECK-PRO head restraints increase
protection to the driver's and front
passenger's head and neck. To this end, the
NECK-PRO head restraints on the driver's and
front-passenger seats are moved forwards
and upwards in the event of a rear-end
collision of a certain severity. This provides
better head support.
G
WARNING
Do not secure any objects (e.g. coat hangers)
on the NECK-PRO head restraints. Otherwise,
the NECK-PRO head restraints may not
function properly, or in the event of a rear-end
collision may not be able offer the level of
protection they are designed to provide.
G
WARNING
Seat or head restraint covers can cause a
malfunction when the NECK-PRO head
restraints are activated or when the side
impact air bags or pelvis air bags are
®
, can be found in