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Display messages
228
Display messages
Radar sensor
deactivated autom.
See Owner's Manual
Lane Keeping
Assist currently
unavailable. see
Owner's Manual
or
Active Lane Keep‐
ing Assist cur‐
rently unavailable
see Owner's Manual
Lane Keeping
Assist inoperative
or
Active Lane Keep‐
ing Assist inoper‐
ative
Possible causes/consequences and M Solutions
Vehicles with a navigation system: the vehicle is close to a radio
telescope facility and is therefore prohibited from transmitting any
radar signals. The radar sensor system has switched off automat-
ically.
DISTRONIC PLUS (
Y
is activated. A warning tone also sounds.
If Blind Spot Assist (
Y
(
page 186) are activated, they are switched off automatically.
Y
The yellow 9 indicator lamps also light up in the exterior mir-
rors.
BAS PLUS (Brake Assist PLUS) (
®
PRE-SAFE
Brake (
Y
Drive on.
X
These functions are available again as soon as the vehicle is far
enough away from the radio telescope facility (
Lane Keeping Assist or Active Lane Keeping Assist is deactivated
and temporarily inoperative if:
the windscreen is dirty in the camera's field of vision.
R
visibility is impaired due to heavy rain, snow or fog.
R
there are no lane markings for a longer period.
R
the lane markings are worn, dark or covered, for example by dirt
R
or snow.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again and the display message disappears if:
the dirt (e.g. slush) drops away while the vehicle is in motion.
R
the system detects that the camera is fully operational again.
R
If the display message continues to be displayed:
Clean the windscreen.
X
Lane Keeping Assist or Active Lane Keeping Assist is faulty.
Visit a qualified specialist workshop.
X
page 154) is switched off automatically if it
page 183) or Active Blind Spot Assist
page 57) and the
Y
page 61) are also not available.
page 327).
Y
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