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Driving safety systems
64
a narrow vehicle travelling in front, e.g. a
R
motorcycle
a vehicle travelling in front on a different line
R
vehicles quickly moving into the radar sensor
R
system detection range
Detection by the camera system is also impaired
in the event of:
dirt on the camera or if the camera is covered
R
glare on the camera system, e.g. from the sun
R
being low in the sky
darkness
R
if:
R
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
To avoid a collision, Brake Assist with cross-
traffic function calculates the brake force nec-
essary if:
you approach an obstacle and
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Brake Assist with cross-traffic function has
R
detected a risk of collision
When driving at a speed under 30 km/h: if
you depress the brake pedal, Brake Assist with
cross-traffic function is activated. Braking assis-
tance from Brake Assist with cross-traffic func-
tion is carried out at the last possible moment.
When driving at a speed above 30 km/h: if
you depress the brake pedal sharply, Brake
Assist with cross-traffic function automatically
increases the brake pressure to a degree suited
to the traffic situation.
Brake Assist with cross-traffic function provides
braking assistance in hazardous situations with
vehicles in front within a speed range between
7 km/h and 250 km/h.
Up to a speed of approximately 70 km/h, Brake
Assist with cross-traffic function may react to:
stationary objects in the path of your vehicle,
R
e.g. stopped or parked vehicles
pedestrians in the path of your vehicle
R
obstacles crossing your path, which move in
R
the detection range of the sensors and are
detected
i
If Brake Assist with cross-traffic function
requires a particularly high braking force, pre-
ventative passenger protection measures
®
(PRE-SAFE
) are activated at the same time
(
page 53).
Y
Keep the brake pedal depressed until the
X
emergency braking situation is over.
ABS prevents the wheels from locking.
Brake Assist with cross-traffic function is deac-
tivated and the brakes function as usual again if:
you release the brake pedal
R
there is no longer a risk of collision
R
no obstacle is detected in front of your vehicle
R
you depress the accelerator pedal
R
you activate kickdown
R
Active Brake Assist
General notes
i
Observe the "Important safety notes" sec-
tion (
page 62).
Y
Active Brake Assist consists of a distance warn-
ing function with an autonomous braking func-
tion and Adaptive Brake Assist.
Active Brake Assist can help you to minimise the
risk of a collision with the vehicle in front or
reduce the effects of such a collision.
If Active Brake Assist detects that there is a risk
of collision, you will be warned visually and
acoustically. If you do not react to the visual and
audible collision warning, autonomous braking
can be initiated in critical situations. If you apply
the brake yourself in a critical situation, Adap-
tive Brake Assist of the Active Brake Assist sys-
tem supports you.
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