Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 552

550 Display messages and warning/indicator lamps
Display messages
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temporarily unavailable
Radar dirty
Possible causes/consequences and
* Front and corner radar sensors and/or lidar (hereafter "sensors") are malfunctioning. Possible causes:
The sensors are dirty or damaged
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. The brake system, steer-
ing and drive system will continue to function normally.
Drive on
#
Once the causes of the problem are no longer present, the driving systems and driving safety systems will be available
again and the corresponding symbols will be switched off.
If the display message does not disappear:
Stop the vehicle in accordance with the traffic conditions.
#
Clean all sensor covers from the outside and check for damage (
#
Restart the vehicle.
#
Solutions
M
P223 0288 02
page 221).
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