Display messages
Possible causes/consequences and
M
M
Solutions
PRE-SAFE Functions
PRE-SAFE Functions
limited
limited See
See Owner's
Owner's
Manual
Manual
PRE
‑
SAFE
®
PLUS or PRE
‑
SAFE
®
Brake is unavailable due to a mal-
function. BAS PLUS with Cross-Traffic Assist may also have failed.
X
Consult a qualified specialist workshop immediately.
Radar
Radar sensors
sensors dirty
dirty
See Owner's Manual
See Owner's Manual
At least one of the following driving systems or driving safety systems
is temporarily restricted or inoperative:
R
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
If the radar sensor system in front is dirty, Active Blind Spot Assist will
not perform a course-correcting brake application.
Possible causes:
R
the sensors in the radiator trim and/or in the bumpers are dirty
R
the function of the driving system or driving safety system is
impaired due to heavy rain or snow
A warning tone also sounds.
Once the causes listed above no longer apply, the display message
goes out. All driving systems or driving safety systems are operative
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
Safeguard the vehicle against rolling away (
Y
page 172).
X
Switch off the engine.
X
Clean the sensors (
Y
page 330) in the following locations:
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.
6
Restraint sys. mal‐
Restraint sys. mal‐
function Consult
function Consult
workshop
workshop
The restraint system is faulty. The
6
warning lamp also lights up in
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.
X
Consult a qualified specialist workshop immediately.
For further information about the restraint system, see (
Y
page 39).
Display messages
261
On
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oar
dc
omp
ut
er
an
dd
ispla
ys
Z