Display messages
Possible causes/consequences and
M
M
Solutions
PRE-SAFE inopera‐
PRE-SAFE inopera‐
tive See Owner's
tive See Owner's
Manual
Manual
Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. airbags, remain available.
X
Consult a qualified specialist workshop immediately.
Radar sensors
Radar sensors
dirty See Owner's
dirty See Owner's
Manual
Manual
At least one of the following driving systems or driving safety sys-
tems is temporarily restricted or inoperative:
R
COLLISION PREVENTION ASSIST PLUS
R
DISTRONIC PLUS
Possible causes:
R
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
is impaired due to heavy rain or snow
A warning tone also sounds.
Once the causes listed above no longer apply, the display message
goes out. All driving systems and driving safety systems are opera-
tional again.
If the display message does not disappear:
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Safeguard the vehicle against rolling away (
Y
page 184).
X
Switch off the engine.
X
Clean the sensors (
Y
page 332) in the following locations:
R
in the radiator trim
R
in the front bumper
R
in the rear bumper, particularly in the middle of the rear
bumper
X
Restart the engine.
The display message disappears.
ü
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
(
Y
page 46).
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Display messages
On
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