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The sensor can distinguish objects by radiating and receiving electromagnetic
waves.
The sensor function may be impaired in the events of one of the following.
›
The sensor cover is soiled by mud, snow and the like.
›
The area in front and around the sensor cover is obscured by labels, auxiliary
lights and similar.
›
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
›
In exceptional cases, the sensor may be hidden in the area under the cover,
such as due to snow.
If the sensor cover of the sensor is dirty or covered, the corresponding mes-
sage 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 cover should not be obscured by
■
labels, auxiliary lights and similar. 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 from
the sensor cover.
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.
›
Assists with a brake action triggered by the driver.
›
If the driver fails to respond to a detected danger, an automatic braking ac-
tion is performed.
170
Driving
» page
172.
on page 169 first.
The system can work only if the following basic conditions are met.
The system is activated.
The TCS is activated
» page
143, Braking and stabilisation systems.
The vehicle is moving 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
Distance warning (dangerous distance)
Fig. 206
Symbols in the instrument cluster: Note (dangerous
proximity)
Read and observe
and
The display of the distance warning is for vehicles with MAXI DOT display.
If a safe interval to the vehicle ahead falls below a minimum the display of the
instrument 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.
» page
144.
on page 169 first.
» Fig.
206.
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