Mercedes-Benz C-Class Operator's Manual page 262

Display messages
260
Display messages
Radar Sensors Radar Sensors
Dirty See Opera‐ Dirty See Opera‐
tor's Manual tor's Manual
6
SRS Malfunction SRS Malfunction
Service Required Service Required
Possible causes/consequences and M M Solutions
At least one of the following driving systems or driving safety sys-
tems is temporarily restricted or inoperative:
®
PRE-SAFE PLUS
R
®
PRE-SAFE Brake
R
COLLISION PREVENTION ASSIST PLUS
R
Active Lane Keeping Assist
R
Active Blind Spot Assist
R
DISTRONIC PLUS
R
Possible causes are:
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.
A warning tone also sounds.
When the causes stated above no longer apply, the display mes-
sage disappears. 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 against rolling away (
X
Switch off the engine.
X
Clean the sensors in the following locations (
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.
The restraint system is faulty. The 6 warning lamp also lights
up in the instrument cluster.
WARNING
G
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
Visit a qualified specialist workshop.
X
For further information about the restraint system, see
( page 42).
Y
page 174).
Y
page 334):
Y