Display messages
Possible causes/consequences and
M
M
Solutions
Active Brake
Active Brake
Assist Functions
Assist Functions
Limited See Opera‐
Limited See Opera‐
tor's Manual
tor's Manual
Active Brake Assist is unavailable due to a malfunction.
X
Visit a qualified specialist workshop.
Radar Sensors
Radar Sensors
Dirty See Opera‐
Dirty See Opera‐
tor's Manual
tor's Manual
The radar sensor system is malfunctioning.
Possible causes are:
R
dirt on sensors
R
heavy rain or snow
R
when driving on inter-urban roads without traffic or infrastructure,
e.g. in desert-like areas
At least one driving system or driving safety system is malfunction-
ing or is temporarily unavailable:
R
Active Brake Assist
R
Active Distance Assist DISTRONIC
Once the cause of the problem is no longer present, the driving and
drive safety systems will be available again. The display message
disappears.
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 134).
X
Switch off the engine.
X
Clean all sensors (
Y
page 250).
X
Restart the engine.
The display message disappears.
6
SRS Malfunction
SRS Malfunction
Service Required
Service Required
The restraint system is malfunctioning. The
6
warning lamp also
lights up in the instrument cluster.
G
WARNING
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.
X
Visit a qualified specialist workshop immediately.
Further information about the restraint system (
Y
page 39).
Display messages
189
On
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