R
darkness
R
if:
-
pedestrians move quickly, e.g. into the path
of the vehicle
-
the camera system no longer detects a
pedestrian as a person due to special cloth-
ing or other objects
-
a pedestrian is concealed by other objects
-
the typical outline of a person is not distin-
guishable from the background
Following damage to the front end of the vehicle,
have the radar sensor settings and operation
checked at a qualified specialist workshop. This
also applies to collisions at slow speeds where
there is no visible damage to the front of the
vehicle.
Following damage to the windscreen, have the
configuration and operation of the camera sys-
tem checked at a qualified specialist workshop.
Function
X
To activate/deactivate: activate or deacti-
vate PRE-SAFE
®
Brake in the on-board com-
puter (
Y
page 290).
If the PRE-SAFE
®
Brake is not activated, the
æ
symbol appears in the multifunction dis-
play.
If you have activated DSR (
Y
page 252), PRE-
SAFE
®
Brake is also deactivated.
This function will issue a warning if:
R
at a speed of approximately 30 km/h or
higher, the distance maintained to the vehicle
travelling in front is insufficient for several
seconds.
The
·
distance warning lamp then lights
up in the instrument cluster.
R
at a speed of around 7 km/h or more, you
rapidly approach a vehicle in front or a pedes-
trian
An intermittent warning tone will then sound
and the
·
distance warning lamp lights up
in the instrument cluster.
X
Brake immediately to defuse the situation.
or
X
Take evasive action provided it is safe to do
so.
The PRE-SAFE
®
Brake function can also brake
the vehicle automatically under the following
conditions:
R
the driver and front passenger have their seat
belts fastened
and
R
the vehicle speed is between approximately
7 km/h and 200 km/h
At a speed of up to approximately 70 km/h,
PRE-SAFE
®
Brake can also detect:
R
stationary objects in the path of your vehicle,
e.g. stopped or parked vehicles
R
pedestrians in the path of your vehicle
i
If there is an increased risk of a collision,
preventive passenger protection measures
(PRE-SAFE
®
) are triggered (
Y
page 57).
If the risk of a collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking, up
to the point of full brake application. Automatic
emergency braking is not performed until imme-
diately prior to an imminent accident.
You can prevent the intervention of PRE-SAFE
®
Brake at any time by:
R
depressing the accelerator pedal further
R
activating kickdown
R
releasing the brake pedal
The braking action of PRE-SAFE
®
Brake is ended
automatically if:
R
you manoeuvre to avoid the obstacle
R
there is no longer any danger of a collision
R
there is no longer an obstacle detected in
front of your vehicle
STEER CONTROL
General notes
STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilisation.
This steering support is provided in particular if:
R
both right wheels or both left wheels are on a
wet or slippery road surface when you brake
R
the vehicle starts to skid
80
Driving safety systems
Safety
