Mercedes-Benz 2009 E-Class Operator's Manual page 307

Display messages
DISTRONIC Currently
Unavailable
See Operator's
Manual
Vehicle status messages in the multifunction display
Possible cause/consequence
Distronic is deactivated because:
The Distronic cover in the radiator grille
R
is dirty.
The functionality is impaired by heavy
R
precipitation or fog
The system is overheated.
R
Possible solution
X
If necessary, clean the Distronic cover in the
area of the radiator grille ( Y
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
R
driving (e.g. slush or snow)
the system recognizes full sensor availability
R
(due to lessening rain or the road surface
drying)
the message in the multifunction display
R
disappears
the speed last stored flashes in the display for
R
5 seconds.
You can then operate Distronic as usual again.
Practical hints
page 285).
Z
305