Mercedes-Benz S-Class 2013 Owner's Manual page 84

Distance warning function
Important safety notes
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Observe the "Important safety notes" sec-
tion. ( page 78).
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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.
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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.
In particular, the detection of obstacles can
be impaired in the case of:
dirt on the sensors or obscured sensors
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snow or heavy rain
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interference by other radar sources
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strong radar reflections, for example, in
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multi-storey car parks
a narrow vehicle travelling in front, e.g. a
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motorcycle
Driving safety systems
a vehicle travelling in front on a different
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line
new vehicles or after the COLLISION PRE-
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VENTION ASSIST system has been serv-
iced
Observe the notes in the section on run-
ning-in ( page 190).
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Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensor checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle.
Function
To activate/deactivate: activate or deac-
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tivate the distance warning function in the
on-board computer (
If the distance warning function is not activa-
ted, the æ symbol appears in the assis-
tance graphics display.
The distance warning function can help you
to minimise the risk of a front-end collision
with a vehicle ahead or reduce the effects of
such a collision. If the distance warning func-
tion detects that there is a risk of a collision,
you will be warned visually and acoustically.
Without your intervention, the distance warn-
ing function cannot prevent a collision.
The distance warning function issues a warn-
ing at speeds:
of around 30 km/h or more, if, over several
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seconds, the distance maintained to the
vehicle travelling in front is insufficient. The
· distance warning lamp then lights up
in the instrument cluster.
of around 7 km/h or higher, if you very
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quickly approach a vehicle in front. An
intermittent warning tone will then sound
and the · distance warning lamp will
light up in the instrument cluster.
page 313).
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