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190 Driving and parking
Cancelling a brake application of Active Brake
Assist
You can cancel a brake application of Active
Brake Assist at any time by:
Fully depressing the accelerator pedal or with
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kickdown.
Releasing the brake pedal.
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Active Brake Assist may cancel the brake applica-
tion when one of the following conditions is fulfil-
led:
you manoeuvre to avoid the obstacle
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there is no longer a risk of collision
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an obstacle is no longer detected in front of
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your vehicle
System limits
Full system performance is not available for a few
seconds after driving off.
The system may be impaired or may not function
in the following situations:
In snow, rain, fog, heavy spray, if there is glare,
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in direct sunlight or in greatly varying light
conditions.
If the sensors are dirty, misted up, damaged or
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covered.
If the sensors are impaired due to interference
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from other radar sources, e.g. strong radar
reflections in multi-storey car parks.
If a loss of tyre pressure or a defective tyre
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has been detected and displayed.
In complex traffic situations where objects
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cannot always be clearly identified.
For pedestrians or vehicles if they move
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quickly into the sensor detection range.
For pedestrians who are hidden by other
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objects.
If the typical outline of a pedestrian cannot be
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distinguished from the background.
If a pedestrian is not detected as such, e.g.
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due to special clothing or other objects.
If the driver's seat belt is not fastened.
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On bends with a tight radius.
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%
The Active Brake Assist sensors adjust auto-
matically while a certain distance is being
driven after the vehicle has been delivered.
Active Brake Assist is unavailable or only par-
tially available during the teach-in process.
▌Setting Active Brake Assist
Multimedia system:
Vehicle
k Assistance
4
5
Active Brake Assist
5
The settings can be adjusted when the ignition is
switched on.
Select Early,
Medium
or Late.
#
%
Your selection is retained when the vehicle is
next started.
Deactivating Active Brake Assist
%
It is recommended that you always leave
Active Brake Assist activated.
Select Off.
#
The distance warning function and the autono-
mous braking function are deactivated.
When the vehicle is next started, the
setting is automatically selected.
%
If Active Brake Assist is deactivated, the æ
symbol appears in the status bar of the multi-
function display.
Medium
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