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191Driver assistance systems
Warning and control lamps
Lights
up
Possible cause ⇒ Solution
A speed reduction by the ACC to
maintain distance with the ve-
hicle ahead is not enough.
Brake! Use the foot brake!
Driver intervention necessary:
The ACC is not currently availa-
ble
a)
.
With the vehicle stationary,
switch the engine off and back
on again. Check the radar sen-
sor visually (in case it is dirty,
has ice or has been knocked).
If it is still unavailable, refer to
a specialised workshop to
have the system inspected.
The ACC is active. No vehicle is
detected ahead. The set speed
remains constant.
–
If the symbol is white: the ACC
is active. A vehicle in front has
been detected. The ACC adjusts
the speed and the distance
from the vehicle ahead.
–
If the symbol is grey: the ACC is
not active. The system is
switched on, but it is not con-
trolling.
The ACC is active. –
a)
The symbol is in colour on the instrument panel with colour display.
Some warning and control lamps will light up briefly when the ignition is
switched on to check certain functions. They will switch off after a few sec-
onds.
WARNING
Failure to heed the warning lamps when they light up and the corre-
sponding messages may result in damage to the vehicle and serious in-
jury.
● Never ignore the warning lamps or messages.
CAUTION
Failure to heed the control lamps when they light up and the corresponding
messages may result in damage to the vehicle.
Note
When the ACC is connected, the instrument panel display messages may be
hidden by messages pertaining to other functions, such as an incoming
call.
Radar sensor
Fig. 131 On the front
bumper: radar sensor.
Safety First Operating instructions Practical Tips Technical specifications
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