Mercedes-Benz S-Sedan 2015 Owners Manual - Manual (Page 63)

The side impact air bag on the front-
passenger side deploys under the following
conditions:
- the OCS system detects that the front-
passenger seat is occupied or
- the belt tongue is engaged in the belt
buckle of the front-passenger seat
R
Window curtain air bag on the side on which
the impact occurs, independently of the
use of the seat belt and independently of
whether the front-passenger seat is occu-
pied
R Window curtain air bags on the driver's and
front-passenger sides in certain rollover sit-
uations if the system determines that they
can offer additional protection to that pro-
vided by the seat belt
i Not all air bags are deployed in an acci-
dent. Although the systems are independ-
ent,
How the air bag system works is deter-
mined by the severity of the accident
detected, especially the vehicle decelera-
tion or acceleration, and the apparent type
of accident:
R head-on collision
R side impact
R rollover
PRE-SAFE ® (anticipatory occupant
protection system)
Introduction
In certain hazardous situations, PRE-SAFE ®
takes pre-emptive measures to protect the
vehicle occupants.
Important safety notes
!
Make sure that there are no objects in the
footwell under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be dam-
aged.
Despite your vehicle being equipped with the
PRE-SAFE ® system, the possibility of per-
sonal injuries occurring as a result of an acci-
dent cannot be eliminated. Always adapt your
driving style to suit the prevailing road and
weather conditions and maintain a safe dis-
tance from the vehicle in front. Drive care-
fully.
Function
PRE-SAFE ® intervenes:
R
in emergency braking situations, e.g. when
BAS is activated
R in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely
R vehicles with the Driving Assistance pack-
age: when a driver assistance system inter-
venes powerfully or the radar sensor sys-
tem detects an imminent danger of colli-
sion in certain situations
PRE-SAFE ® takes the following measures
depending on the hazardous situation
detected:
R
the front seat belts are pre-tensioned.
R
if the vehicle skids, the panorama roof with
power tilt/sliding panel and the side win-
dows are closed so that only a small gap
remains.
R
the front-passenger seat is adjusted if it is
in an unfavorable position.
R for vehicles with electrically adjustable rear
seats: the outer rear seats are adjusted if
they are in an unfavorable position.
R vehicles with a multicontour seat: the air
pressure in the side bolsters of the seat
backrest is increased.
R
vehicles with seat belt extenders: the seat
belts of the outer rear seats are pre-ten-
sioned.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ® slackens
the belt pre-tensioning. On vehicles with mul-
ticontour seats, the air pressure in the side
Occupant safety
61
Safety
Z