Mercedes-Benz CL-Class 2006 Owner's Manual page 155

COMAND
COMAND navigation system* (introduction)
Positioning takes place automatically even
when COMAND is switched off. The dura-
tion will vary from one case to another.
Route guidance may be restricted as fol-
lows during vehicle positioning:
Navigation announcements, route
guidance displays and displayed street
names are not consistent with the ac-
tual location of the vehicle.
COMAND does not generate navigation
announcements.
Instead of route guidance displays, you
see the "Off road" display and an arrow.
The arrow shows the compass heading
to the destination.
When positioning is complete, route guid-
ance is resumed using navigation an-
nouncements and route guidance displays.
134
Interrupting the journey duration route
guidance
The following applies if you interrupt the
journey during route guidance and contin-
ue the journey later on:
COMAND resumes route guidance au-
tomatically if you continue the journey
within 2 hours.
Route guidance is cancelled if you con-
tinue the journey after more than
2 hours. It will be necessary to resume
the cancelled route guidance manually
( page 174).
i
Interrupting the journey means parking
the vehicle and switching off COMAND.
Continuing the journey means switching
COMAND on again and driving on.
Hard disk errors
COMAND has an integrated hard disk on
which the map software is stored.
If an area of the hard disk has an error,
COMAND can no longer access the map
data in this area, for example, when calcu-
lating a route.
The "Navigation unavailable. Please ob-
serve the operating instructions" message
then appears.
To delete the message: switch
COMAND off and back on.
i
If you switch the navigation system off/on,
it will be operational again until it has to access
the faulty area of the hard disk again.
The message will then appear again. Consult a
Mercedes-Benz Service Centre.
Units of measurement
The units of measurement in navigation
mode are identical to those set in the in-
strument cluster.