Mercedes-Benz S-Sedan 2015 Owners Manual - Manual (Page 282)

Display messages Possible causes/consequences and M M Solutions
Radar Sensors Radar Sensors
Dirty See Opera‐ Dirty See Opera‐
tor's Manual tor's Manual
COLLISION PREVENTION ASSIST PLUS is temporarily inoperative
or limited.
Possible causes are:
R
the sensors in the radiator trim and/or in the bumpers are dirty.
R the COLLISION PREVENTION ASSIST PLUS function is impaired
due to heavy rain or snow.
A warning tone also sounds.
When the causes stated above no longer apply, the display mes-
sage disappears. COLLISION PREVENTION ASSIST PLUS is 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
Secure the vehicle against rolling away (
Y
page 192).
X
Switch off the engine.
X Clean the sensors in the following locations (
Y
page 363):
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.
Check Left Rear Check Left Rear
Belt See Opera‐ Belt See Opera‐
tor's Manual tor's Manual or
Check Right Rear Check Right Rear
Belt See Opera‐ Belt See Opera‐
tor's Manual tor's Manual
The seat belt buckle extender on the right or left of the rear com-
partment is not in the predefined position. The belt strap may be
jammed in the belt tongue.
G WARNING
If the seat belt buckle extender is not in the predefined position,
the seat belt cannot provide the intended level of protection.
There is an increased risk of injury.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Release the jamming.
X
Repeat the seat belt fastening procedure.
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