Mercedes-Benz E-Class Coupe 2021 Operator's Manual page 378

376 Display messages and warning/indicator lamps
Display messages Possible causes/consequences and
* Active Lane Keeping Assist is temporarily unavailable.
Active Lane Keeping Assist
Currently Unavailable See
Operator's Manual
* Active Lane Keeping Assist is malfunctioning.
Active Lane Keeping Assist
Inoperative
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* The radar sensor system is malfunctioning. Possible causes:
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Currently Unavailable
Radar Sensors Dirty
The ambient conditions are outside the system limits (
As soon as the ambient conditions are within the system limits, the system will become available again.
Drive on.
#
Consult a qualified specialist workshop.
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Dirt on the sensors
R
Heavy rain or snow
R
Extended country driving without other traffic, e.g. in the desert
R
Driving systems and driving safety systems may be malfunctioning or temporarily unavailable.
Once the cause of the problem is no longer present, the driving systems and driving safety systems will be available
again.
If the display message does not disappear:
Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
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Clean all sensors ( page 280).
/
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Restart the engine.
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M M Solutions
page 200).
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