Mercedes-Benz C-Clas 2016 Owner's Manual page 252

Display messages
PRE-SAFE Functions PRE-SAFE Functions
limited See limited See Owner's Owner's
Manual Manual
Radar sensors Radar sensors dirty dirty
See Owner's Manual See Owner's Manual
6
Restraint sys. mal‐ Restraint sys. mal‐
function Consult function Consult
workshop workshop
Possible causes/consequences and M M Solutions
®
PRE‑SAFE PLUS or PRE‑SAFE
function. BAS PLUS with Cross-Traffic Assist may also have failed.
Consult a qualified specialist workshop immediately.
X
The radar sensor system is malfunctioning.
Possible causes:
Dirt on sensors
R
Heavy rain or snow
R
Driving on inter-urban roads without traffic or infrastructure, e.g. in
R
desert-like areas
At least one driving system or driving safety system is malfunctioning
or is temporarily unavailable:
®
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 with Steering Assist and Stop&Go Pilot
R
If the front radar system sensor is dirty, Active Blind Spot Assist will
not perform a course-correcting brake application.
Once the cause of the problem is no longer present, the driving sys-
tems and driving safety systems will be available again. The display
message disappears.
If the display message does not disappear:
Stop the vehicle, paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (
X
Switch off the engine.
X
Clean all sensors (
X
Y
Restart the engine.
X
The display message disappears.
The restraint system is malfunctioning. The 6 warning lamp also
lights up on the instrument cluster.
G
WARNING
The airbags or belt tensioners may either be triggered unintentionally
or, in the event of an accident, may not be triggered.
This poses an increased risk of injury!
Consult a qualified specialist workshop immediately.
X
Further information about the restraint system (
Display messages
®
Brake is unavailable due to a mal-
page 159).
Y
page 319).
page 42).
Y
Z
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