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Driving safety systems
70
Important safety notes
In particular, the detection of obstacles can be
impaired in the following situations:
dirt on the sensors or obscured sensors
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snow or heavy rain
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interference by other radar sources
R
strong radar reflections, for example, in multi-
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storey car parks
a narrow vehicle travelling in front, e.g. a
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motorcycle
a vehicle travelling in front on a different line
R
new vehicles or after the COLLISION PRE-
R
VENTION ASSIST PLUS system has been serv-
iced
Observe the important safety notes in the
"Running-in notes" section (
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at low
speeds where there is no visible damage to the
front of the vehicle.
Activating/deactivating
The COLLISION PREVENTION ASSIST PLUS is
automatically active when the ignition is
switched on.
You can activate or deactivate COLLISION PRE-
VENTION ASSIST PLUS in the on-board com-
puter (
page 233). When the system is deac-
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tivated, the distance warning function and the
autonomous braking function are also deactiva-
ted.
If COLLISION PREVENTION ASSIST PLUS is
deactivated, the æ symbol appears on the
assistance display.
Distance warning function
General information
The distance warning function can help you to
minimise the risk of a rear-end collision with a
vehicle ahead or reduce the effects of such a
collision. If the distance warning function
detects a risk of collision with the vehicle in
front, you will be warned visually and audibly.
Important safety notes
i
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The distance warning function does not react:
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R
R
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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.
page 132).
Y
G
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
R
R
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
The distance warning function issues a warning
at speeds:
R
R
Observe the "Important safety notes" sec-
tion for driving safety systems (
WARNING
to people or animals
to oncoming vehicles
to crossing traffic
when cornering
WARNING
give an unnecessary warning
not give a warning
of approximately 30 km/h or more if, over
several seconds, the distance maintained to
the vehicle travelling in front is insufficient.
The · distance warning lamp will then
light up on the instrument cluster.
of approximately 7 km/h or more if you are
rapidly approaching a vehicle in front. An
intermittent warning tone will then sound and
the · distance warning lamp will light up
on the instrument cluster.
page 67).
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