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.
The PRE-SAFE
®
PLUS braking application is can-
celled:
R
if the accelerator pedal is depressed when a
gear is engaged
R
if the risk of a collision passes or is no longer
detected
R
if DISTRONIC PLUS indicates an intention to
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 may be implemented, depending on
the type and severity of the impact:
R
the hazard warning lamps are activated
R
the emergency lighting is activated
R
the vehicle doors are unlocked
R
the front side windows are lowered
R
vehicles with a memory function: the electri-
cally adjustable steering wheel is raised
R
the engine is switched off and the fuel supply
is cut off
R
vehicles with the Mercedes-Benz emergency
call system: automatic emergency call
R
vehicles with the hybrid drive system: the
hybrid system and the high-voltage electrical
system are deactivated
Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
a child restraint system on a rear seat. Children
are generally better protected there.
If a child younger than twelve years old and
under 1.50 m in height is travelling in the vehi-
cle:
R
always secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child.
R
be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions.
R
always pay attention to the instructions and
safety notes on the automatic front-
passenger front airbag deactivation system
(
Y
page 51).
58
Children in the vehicle
Safety
