Mercedes-Benz 2011 SL550 Roadster Operator's Manual page 235

Vehicle status messages in the multifunction display
Display messages
DISTRONIC Currently
Unavailabl
e. See
Oper.
Manual
DISTRONIC Currently
Unavailabl
e. See
Oper.
Manual
Possible causes/consequences and M Solutions
Distronic is deactivated because:
The Distronic cover in the radiator grille is dirty.
R
The functionality is impaired by heavy precipitation or fog.
R
The system is overheated.
R
X
If necessary, clean the Distronic cover in the area of the
radiator grille ( Y page 218).
X
If necessary, wait until the system has cooled down.
X
Restart the vehicle.
Distronic becomes operational again without the engine being
restarted when
dirt on the radiator grille has fallen off while driving (e.g.
R
slush or snow)
the system recognizes full sensor availability (due to
R
lessening rain or the road surface drying)
the message in the multifunction display disappears
R
You can then operate Distronic as usual again.
Distronic is deactivated because the functionality is impaired
by external interferences, e.g. high-frequency sources such
as toll stations, speed measuring systems etc.
X
Leave the area of the external interference.
X
Activate Distronic again (
the multifunction display disappears.
Distronic is deactivated because the Distronic sensor has not
sensed any other vehicles or objects, e.g. road sign or such,
for a long time.
X
Activate Distronic again (
the multifunction display disappears.
Y page 136) when the message in
Y
page 136) when the message in
233
Z