Mercedes-Benz S-Class 2013 Owner's Manual page 331

Display messages
328
Display messages
Radar sensors Radar sensors
dirty See Owner's dirty See Owner's
Manual Manual
ü ü
Possible causes/consequences and M M Solutions
At least one of the following driving systems or driving safety sys-
tems is temporarily inoperative:
®
PRE-SAFE PLUS
R
®
PRE-SAFE Brake
R
COLLISION PREVENTION ASSIST
R
Active Lane Keeping Assist
R
Active Blind Spot Assist
R
DISTRONIC PLUS
R
Possible causes:
the sensors in the radiator trim and/or in the bumpers are dirty.
R
the function of the driving system and/or driving safety system
R
is impaired due to heavy rain or snow.
Once the causes listed above no longer apply, the display message
goes out. All driving systems/driving safety systems are operative
again.
If the display message does not disappear:
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle to prevent it from rolling away
X
( page 215).
Y
Switch off the engine.
X
Clean the sensors (
X
in the radiator trim
R
in the front bumper
R
in the rear bumper, particularly in the middle of the rear
R
bumper
Restart the engine.
X
The display message disappears.
If this symbol appears in the multifunction display, a seat belt
tongue has been inserted into a rear seat belt buckle.
Further information on the status indicator for the rear seat belts
( page 53).
Y
page 410) in the following locations:
Y