Mercedes-Benz C-Clas 2016 Owner's Manual page 61

Occupant safety
58
Function
®
PRE-SAFE intervenes:
in emergency braking situations, e.g. when
R
BAS is activated
in critical driving situations, e.g. when physi-
R
cal limits are exceeded and the vehicle under-
steers or oversteers severely
vehicles with the Driving Assistance package:
R
when a driver assistance system intervenes
powerfully or the radar sensor system detects
an imminent danger of collision in certain sit-
uations
®
PRE-SAFE takes the following measures
depending on the hazardous situation detected:
the front seat belts are pre-tensioned
R
if the vehicle skids, the front side windows are
R
closed
vehicles with the memory function for the
R
front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavourable
position
If the hazardous situation passes without result-
ing in an accident, PRE-SAFE
pre-tensioning. All settings made by PRE-SAFE
can then be reversed.
If the seat belt pre-tensioning is not reduced:
Move the seat backrest or seat back slightly
X
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" (
®
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
measures to protect the vehicle occupants.
®
slackens the belt
page 47).
Y
®
PLUS takes pre-emptive
Important safety notes
The intervention of PRE-SAFE
prevent an imminent collision.
The driver is not warned before the intervention
®
of PRE-SAFE
®
PRE-SAFE PLUS does not intervene:
if the vehicle is reversing
R
when the vehicle is towing a trailer and there
R
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
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:
if the radar sensor system detects that a
R
head-on collision is imminent, the seat belts
®
are pre-tensioned
if the radar sensor system detects that a rear-
R
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
-
The PRE-SAFE
celled:
if the accelerator pedal is depressed when a
R
gear is engaged
if the risk of a collision passes or is no longer
R
detected
if DISTRONIC PLUS indicates an intention to
R
pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
®
®
PLUS cannot
PLUS.
®
PLUS will not apply the
®
PLUS braking application is can-