Important safety notes
!
Make sure that there are no objects in the
footwell or behind the seats. There is a risk
that the seats and/or the objects could be
damaged when PRE-SAFE
®
is activated.
Although your vehicle is equipped with PRE-
SAFE
®
, the possibility of injury in the event of an
accident cannot be ruled out. Always adapt your
driving style to suit the prevailing road and
weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
Function
PRE-SAFE
®
intervenes:
R
in emergency braking situations, e.g. when
BAS is activated
R
in critical driving situations, e.g. when physi-
cal limits are exceeded and the vehicle under-
steers or oversteers severely
R
on vehicles with the Driving Assistance pack-
age: if BAS PLUS intervenes powerfully or the
radar sensor system detects an imminent
danger of collision 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 front side windows are
closed
R
vehicles with the memory function: the front-
passenger seat is adjusted if it is in an unfav-
ourable position
R
vehicles with a multicontour seat: the air pres-
sure in the side bolsters of the backrest is
increased
If the hazardous situation passes without result-
ing in an accident, PRE-SAFE
®
slackens the belt
pre-tensioning. On vehicles with multicontour
seats, the air pressure in the side bolsters is
reduced again. All settings made by PRE-SAFE
®
can then be reversed.
If the seat belt pre-tensioning is not reduced:
X
Move the seat backrest or seat back slightly
when the vehicle is stationary.
Seat belt pre-tensioning is reduced and the
locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE
®
convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" (
Y
page 41).
PRE-SAFE
®
PLUS (anticipatory occu-
pant protection PLUS)
Introduction
PRE-SAFE
®
PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE
®
PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE
®
PLUS cannot
prevent an imminent collision.
The driver is not warned before the intervention
of PRE-SAFE
®
PLUS.
PRE-SAFE
®
PLUS does not intervene:
R
if the vehicle is reversing
R
when the vehicle is towing a trailer and there
is a risk of a rear-end collision
When driving, or when parking or exiting a park-
ing space with assistance from Active Parking
Assist, PRE-SAFE
®
PLUS will not apply the
brakes.
Function
PRE-SAFE
®
PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE
®
PLUS takes the following measures
depending on the hazardous situation detected:
R
if the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned
R
if the radar sensor system detects that a rear-
end collision is imminent:
-
the rear hazard warning lamps are activa-
ted and flash at a higher frequency
-
the brake pressure is increased if the driver
applies the brakes when the vehicle is sta-
tionary
-
the seat belts are pre-tensioned
48
Occupant safety
Sa
fet
y
