Mercedes-Benz C-Class Operator's Manual page 63

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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 side windows and the
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sliding sunroof are closed.
vehicles with the memory function for the
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front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavorable posi-
tion.
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.
The 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. You will
find information on the convenience function
under "Belt adjustment" (
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PRE-SAFE PLUS (anticipatory occu-
pant protection system 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
prevent an imminent collision.
The driver is not warned about the intervention
®
of PRE-SAFE PLUS.
®
PRE-SAFE PLUS does not intervene if the vehi-
cle is backing up.
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.
®
slackens the belt
®
page 51).
Y
®
®
PLUS cannot
Occupant safety
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
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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 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 PLUS braking application is can-
celed:
if the accelerator pedal is depressed when a
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gear is engaged
if the risk of a collision passes or is no longer
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detected
if DISTRONIC PLUS indicates an intention to
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pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
the hazard warning lamps are activated
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the emergency lighting is activated
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the vehicle doors are unlocked
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the front side windows are lowered
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vehicles with a memory function: the electri-
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cally adjustable steering wheel is raised
the engine is switched off and the fuel supply
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is cut off
vehicles with mbrace: automatic emergency
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call
vehicles with the hybrid drive system: the
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hybrid system and the high-voltage electrical
system are deactivated
61
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