Mercedes-Benz 2011 CL-Class Operator's Manual page 178

Navigation
176
Problems with the navigation system
Problem
COMAND is unable to
continue route
guidance after the
journey has been
interrupted.
Problem
COMAND is unable to
determine the vehicle's
position.
Possible causes/consequences and M Solutions
Route guidance is canceled if you interrupt the journey for more
than two hours.
"Interrupting the journey" refers to stopping the vehicle and
switching off COMAND. "Continuing route guidance" refers to
switching COMAND back on and driving on.
X
Continue route guidance (
COMAND determines the vehicle's position. Depending on the
driving situation, this may take some time.
Route guidance may be restricted during the determination of
the vehicle's position.
When positioning is complete, route guidance is resumed with
navigation announcements and route guidance displays.
Possible causes/consequences and M Solutions
COMAND has to redetermine the position of the vehicle if the
vehicle has been transported (e.g. by ferry, by motorail or after
towing).
X
Start the vehicle and pull away.
COMAND determines the vehicle's position. Depending on the
driving situation, this may take some time.
Route guidance may be restricted during the determination of
the vehicle's position.
When positioning is complete, route guidance is resumed with
navigation announcements and route guidance displays.
Y page 154).