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Press the
switch.
If the distance warning function is deac-
tivated, the LED on the
up.
On-board computer with colour display:
the display shows a message.
Using Active Brake Assist
Useful information
With the help of the radar sensor system,
Active Brake Assist can calculate the dis-
tance of your vehicle to the vehicle in front.
If for several seconds, the distance to the
vehicle in front is insufficient for the speed
you are driving at, Active Brake Assist
alerts the driver visually.
If a risk of collision is detected, Active
Brake Assist alerts the driver both visually
and acoustically. In addition, Active Brake
Assist prepares the vehicle for a possible
emergency braking manoeuvre.
In particularly critical situations Active
Brake Assist may brake autonomously. In
this case, Active Brake Assist continues to
alert the driver both visually and acousti-
cally.
Please note
G
WARNING
Active Brake Assist cannot always clearly
identify objects and complex traffic sit-
uations.
In these cases, Active Brake Assist may:
warn or brake for no reason
R
not issue a warning
R
not brake
R
There is a risk of an accident.
Always pay careful attention to the traf-
fic situation and do not rely on Active
Brake Assist alone. Be prepared to brake
or manoeuvre if necessary.
G
Active Brake Assist does not react:
switch lights
to persons, bicycles, motorcycles or
R
animals
to approaching vehicles
R
to cross traffic
R
on bends
R
As a result, Active Brake Assist cannot
intervene in all critical situations. There
is a risk of an accident.
Always pay careful attention to the traf-
fic situation and be prepared to brake.
G
Severe jolting, for example in the case of
a collision, may cause the radar sensors
to be misaligned. The function of Active
Brake Assist is then impaired.
There is a risk of an accident.
Deactivate Active Brake Assist. Have
Active Brake Assist checked at a qualified
specialist workshop.
The following requirements must also be
fulfilled:
forward gear is engaged.
R
the parking brake is released.
R
the driving speed is within the suitable
R
speed range.
Detection can be restricted under the fol-
lowing conditions:
the vehicle is new or service work has
R
been carried out on the system. In this
case, observe the information on run-
ning-in the vehicle.
the radio sensors are dirty or covered
R
Y
(
in heavy rain or snow.
R
there is interference from other radar
R
sources, e.g. in multi-storey car parks.
the vehicle travelling in front is narrow,
R
e.g. a motorcycle.
the vehicle travelling in front is travel-
R
ling on a different line.
Autonomous braking can be cancelled by
briefly depressing the accelerator pedal.
Driving safely
WARNING
WARNING
page 165).
59
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