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356 Display messages and warning and indicator lamps
Display messages
Radar sensors dirty See
Owner's Manual
Limiter - - - km/h
Possible causes/consequences and
The radar sensor system is temporarily inoperative, e.g. due to
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electromagnetic radiation emitted by nearby TV or radio stations
or other sources of electromagnetic radiation.
The system is outside the operating temperature range.
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The on-board electrical system voltage is too low.
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If the causes mentioned above no longer apply, the display message
will disappear and Active Brake Assist will be operational again.
If the display message does not go out:
Stop in accordance with the traffic conditions.
#
Secure the vehicle against rolling away.
#
Switch off the engine.
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Clean the sensors in the front bumper (
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Restart the engine.
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* A warning tone also sounds.
At least one of the following driving systems or driving safety sys‐
tems is temporarily non-operational or operational only on a restric‐
ted basis:
Active Brake Assist
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Blind Spot Assist
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Active Distance Assist DISTRONIC
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The following causes are possible:
The sensors in the radiator grille and/or in the bumpers are
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dirty.
The function of the driving system or driving safety system is
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impaired due to heavy rain or snow.
If the causes mentioned above no longer apply, the display message
will disappear and the driving systems or driving safety systems will
be operational again.
If the display message does not disappear:
Stop in accordance with the traffic conditions.
#
Secure the vehicle against rolling away.
#
Switch off the engine.
#
Clean the sensors in the following places:
#
In the radiator grille
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In the front bumper
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In the rear bumper
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Restart the engine.
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* The limiter cannot be activated while you have the accelerator pedal
depressed beyond the point of resistance (kickdown).
If conditions permit, drive at a speed greater than 30 km/h and
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store the speed.
M M
Solutions
page 294).
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