Mercedes-Benz SL 550 BlueEFFICIENCY, Operator'S Manual

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Display messages Possible causes/consequences and
M
Solutions
Act. Lane Keep.
Assist Currently
Unavailable See
Operator's Manual
Active Lane Keeping Assist is deactivated and temporarily
inoperative. Possible causes are:
R
the windshield in the camera's field of vision is dirty.
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, e.g. by dirt or snow.
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 154).
X
Clean the windshield.
If the system detects that the camera is fully operational, the
display message disappears.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again.
Act. Lane Keep.
Assist Inoperative
Active Lane Keeping Assist is defective.
X
Visit a qualified specialist workshop.
Active Blind Spot
Assist Currently
Unavailable See
Operator's Manual
Active Blind Spot Assist is temporarily inoperative. Possible
causes are:
R
the sensors are dirty.
R
function is impaired due to heavy rain or snow.
R
the radar sensor system is outside the operating temperature
range.
R
the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellow
9
indicator lamps also light up in the exterior
mirrors.
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 154).
X
Clean the sensors (
Y
page 504).
X
Restart the engine.
If the system detects that the sensors are fully operational, the
display message disappears.
Active Blind Spot Assist is operational again.
Display messages
243
On-board computer and displays
Z