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246 Driving and parking
246
If Active Brake Assist is deactivated or the func-
tions are restricted, e.g. due to activation of
another driving system, the ê display message
appears in the driver display.
If the system is unavailable due to dirty or dam-
aged sensors or due to a malfunction, or if the
functions are restricted, the Ó warning lamp
appears in the driver display.
The system may be impaired or may not function,
particularly 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 ambient
light.
If the sensors are dirty, fogged up, damaged or
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covered. (
page 217)
/
If the sensors are impaired due to interference
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from other radar sources, e.g. strong radar
re ections in a parking garage.
If a loss of tire pressure or a malfunctioning
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tire has been detected and displayed.
In complex tra c situations where objects
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cannot always be clearly identi ed.
If pedestrians, cyclists or vehicles move
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quickly into the sensor detection range.
If road users are hidden by other objects or
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are located close to other objects.
If the typical outline of a pedestrian or cyclist
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cannot be distinguished from the background.
If a pedestrian or cyclist is not detected as
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such, e.g. due to special clothing or other
objects.
If the driver's seat belt is not fastened.
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On curves with a tight radius.
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Se Setting A
tting Activ
ctive Br
e Brak ake Assist
e Assist
R R eq equir uirements:
ements:
The vehicle is switched on.
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Multimedia system:
©
Settings
Assistance
4
5
5
Collision Avoidance
Active Brake Assist
5
5
Select the desired setting.
#
Deactivating A
Deactiv
ating Activ
ctive Br
e Brak ake Assist
e Assist
%
It is recommended that you always leave
Active Brake Assist activated.
Select Off.
#
The distance warning function, the autono-
mous braking function and Evasive Steering
Assist are deactivated.
The system is switched on again the next time
the vehicle is started.
%
If Active Brake Assist is deactivated, the æ
symbol appears in the status bar of the multi-
function display.
T T r r a c
a c Sign Assist
Sign Assist
F F unction of
unction of Tr Tra c
a c Sign Assist
Sign Assist
%
This function is available on demand
(
page 29).
/
Tra c Sign Assist detects tra c signs with the
multifunction camera and compares this with
information in the digital navigation map. It assists
you by displaying detected speed limits and over-
taking restrictions in the driver's display and in
the head-up display. The system can issue a warn-
ing when you exceed the maximum permissible
speed.
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