46
Navigation
If navigation data are unavailable or incomplete, the navigation system may
be unable to determine the exact vehicle position. As a result, the naviga-
tion may not be as exact as usual.
Navigation area and age of navigation data
The accuracy of the data (small villages, streets and house numbers) de-
pends on the respective version for the country.
Roads and streets are subject to constant change (e.g. new roads, changes
to street names and house numbers). After some time, navigation data will
no longer be up to date. This may lead to inaccurate or incorrect route guid-
ance.
In the case of small villages, they may have to be searched for as Points of
Interest (POI) rather than by their name.
Map updates and different map versions (East/West Europe) are available
through SD cards. Please consult a Technical Service.
Updating the internal navigation data memory
Fig. 43 Navigation setup
menu.
The navigation data for the vehicle sales zone are stored in the internal
memory of the navigation system. This data can be used directly for naviga-
tion.
It is also possible to navigate using navigation data stored in one of the
available SD cards (please consult a Technical Service), without needing to
download the data from the SD card to the internal memory of the navigator
(this option is recommended if temporarily using a navigation database:
e.g. different geographical areas).
The navigation data in the internal memory of the system can be updated
using the SD cards available (please consult a Technical Service). Please
note that if you upload data from the SD card to the internal memory of the
navigator,
the data previously stored in this memory will be deleted and
cannot be recovered
(option recommended for updating cartography).
Updating navigation data
A memory card containing updated navigation data can be obtained from a
Technical Service.
●
Cancel the mechanical protection against overwriting in the memory
card.
●
Inserting the memory card
⇒
page 27.
If the inserted memory card contains valid navigation data, a window opens
asking whether you wish to permanently allocate the memory card to the ra-
dio navigation system.
Due to licensing legislation, when the copy has been completed, the memo-
ry card will be allocated to this radio and navigation system and can
not
be
used for other radio and navigation units.
●
Press the
Assign
function button to continue.
Information about the navigation data installed and available on the memo-
ry card is displayed.
●
Press the function button
Install
to start copying the information.
