Mercedes-Benz CL-Class 2006 Owner's Manual page 156

COMAND
COMAND navigation system* (introduction)
Input restrictions
On vehicles for certain countries, there is a
restriction on entering data.
The restriction is active above a vehicle
speed of about 5 km/h. The restriction is
deactivated as soon as the vehicle speed
drops below about 3 km/h.
When the restriction is active it is not pos-
sible to enter specific items, e.g. town or
road name.
You will be aware of this because certain
menu items cannot be selected.
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