Mercedes-Benz C-Class 2014 Owner's Manual page 81

Driving safety systems
78
G WARNING
The distance warning function does not react:
to people or animals
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to oncoming vehicles
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to crossing traffic
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when cornering
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Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
G WARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
give an unnecessary warning
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not give a warning
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There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation; do not rely on the distance warning
function alone.
Function
To activate/deactivate: activate or deac-
X
tivate the distance warning function in the
on-board computer (
If the distance warning function is deactiva-
ted, the æ symbol appears in the assis-
tance graphics display.
The distance warning function can help you to
minimise the risk of a collision with the vehi-
cle in front or reduce the effects of such a
collision. If the distance warning function
detects that there is a risk of a collision, you
will be warned visually and acoustically.
The distance warning function issues a warn-
ing at speeds:
of approximately 30 km/h or more, if, over
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several seconds, the distance maintained
to the vehicle travelling in front is insuffi-
page 308).
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cient. The · distance warning lamp
then lights up in the instrument cluster.
of approximately 7 km/h or more, if you
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rapidly approach a vehicle in front. An inter-
mittent warning tone will then sound and
the · distance warning lamp will light
up in the instrument cluster.
Brake immediately in order to increase the
X
distance from the vehicle in front.
or
Take evasive action provided it is safe to do
X
so.
Due to the nature of the system, particularly
complicated but non-critical driving condi-
tions may also cause the system to display a
warning.
With the help of the radar sensor system, the
distance warning function can detect obsta-
cles that are in the path of your vehicle for an
extended period of time.
Up to a speed of approximately 70 km/h, the
distance warning function can also react to
stationary obstacles, such as stopped or
parked vehicles.
If you approach an obstacle and the distance
warning function detects a risk of a collision,
the system will alert you both visually and
acoustically.
Autonomous braking function
If the driver does not react to the distance
warning signal in a critical situation, COLLI-
SION PREVENTION ASSIST PLUS can assist
with the autonomous braking function.
The autonomous braking function:
gives the driver more time to react to criti-
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cal driving situations
can help the driver to avoid an accident or
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reduces the effects of an accident
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Vehicles without DISTRONIC PLUS: the
autonomous braking function is available in
the following speed ranges:
7 - 105 km/h for moving objects
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7 - 50 km/h for stationary objects
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