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Vehicle status messages in the multifunction display
476
Text messages
Safety systems
Display messages Possible cause/consequence Possible solution
PRE-SAFE Inoperative
See Oper. Manual
The PRE-SAFE
®
system itself has failed.
All other occupant safety systems, such
as the air bags, are still available.
X
Contact an authorized Mercedes-Benz Center
as soon as possible.
PRE-SAFE Function Currently
Limited See Oper.
Manual
The PRE-SAFE
®
Brake is switched off and
is temporarily unavailable.
The PRE-SAFE
®
Brake is deactivated if:
R
the DISTRONIC Plus cover in the
radiator grille is dirty
R
the area around the sensors in the front
or the rear bumper is dirty
R
its function is impaired as a result of
heavy precipitation
R
the radar sensor system is temporarily
inoperative due to electromagnetic
interference near television and radio
transmitter stations, toll stations,
speed measuring systems, etc.
R
the system is out of the operating
temperature range
R
the battery voltage is insufficient
The PRE-SAFE
®
Brake becomes operational
again and the message in the multifunction
display disappears when:
R
dirt on the radiator grille has fallen off while
driving (e.g. slush or snow)
R
the system recognizes full sensor availability
(due to lessening rain or the road surface
drying)
R
the system is within the operating temperature
range
If the message in the multifunction display does
not disappear:
X
Clean the DISTRONIC Plus cover in the radiator
grille (Y page 465).
X
Clean the front and the rear bumper
(Y page 465).
X
Restart the vehicle.
X
Wait until the battery recovers.
Practical hints
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