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The sensor function may be impaired in the events of one of the following.
›
The sensor is soiled by mud, snow etc.
›
The area in front and around the sensor is obscured by labels, auxiliary lights
or similar items.
›
Visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is dirty or covered, the corresponding message appears on the
display of the instrument cluster
WARNING
If you suspect that the sensor is damaged, deactivate the system. Have
■
the sensor checked by a specialist garage.
The sensor can become misaligned by collisions or by damage to the front
■
of the vehicle, the wheel arch or the underside of the vehicle. This can lead
to impaired function of the sensor - risk of accidents! Have the sensor
checked by a specialist garage.
The area in front and around the sensor should not be obscured by labels,
■
auxiliary lights or similar items. This can lead to impaired function of the
sensor - risk of accidents!
CAUTION
Remove the snow with a brush and the ice with a solvent-free de-icer.
Operation
Read and observe
and
The system support is provided in the following manner.
›
Alerts you about a dangerous proximity to the vehicle ahead.
›
Warns you of an impending collision.
›
Prepares the brakes for emergency braking prior to a detected danger.
156
Driving
» page
157, Information messages.
Fig. 155
Instrument cluster display: Note
(dangerous distance)advance /
warning or emergency braking at
low speed
on page 155 first.
›
Assists with a brake action triggered by the driver.
›
If the driver fails to respond to a detected danger, automatic braking is per-
formed.
The system can work only if the following basic conditions are met.
The system is activated.
TCS is enabled
» page
138, Braking and stabilisation systems.
The vehicle is traveling forwards at a speed of more than approx. 5 km/h.
Note
The system can be impaired or may not be available, for example when driving
in "sharp "curves or with an ESC engagement
proximity warning (dangerous proximity)
Read and observe
and
If a safe distance to the vehicle ahead is not maintained, the display of the in-
strument cluster shows the symbol
Immediately increase the proximity if the current traffic situation allows you
to do so!
The proximity at which the warning is displayed depends on the current speed.
The warning may occur when driving between about 60 km/h and 210 km/h.
Warning and automatic braking
Read and observe
and
Emergency braking at low speed
In a driving speed range of approx. 5 km/h to approx. 30 km/h, the automatic
braking action is not preceded by a warning. In the event of an immediate risk
of impact, automatic braking is carried out with the breaking force increasing
in stages.
The symbol
» Fig. 155
on page 156 - appears in the display during auto-
matic braking
Advance warning
If the system detects a risk of collision, the symbol
appears in the display and you will hear an acoustic signal.
At the same time, the braking system is prepared for possible emergency brak-
ing.
» page
138.
on page 155 first.
» Fig. 155
on page 156 - .
on page 155 first.
» Fig. 155
on page 156 -
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