
NAV (navigation system)
86
Note
You do not receive any information about the meaning of road signs!
How does the navigation system work?
The navigation system works with the help of satellites (GPS).
Route information and satellite signals are used to pinpoint the current
vehicle position. GPS satellites send the necessary signals required by the
system (GPS stands for “Global Positioning System”).
The information is transmitted to the navigation system and compared with
the information stored in the navigation CD map database. This way, the
route guidance can be accurately calculated.
The navigation CD must be in the CD drive to calculate the route
Once the calculation is complete, you can remove the navigation CD and play
audio or MP3 CDs in the internal drive unit. The data required for navigation
is stored in the navigation system. Where the navigation system requires
more data (e.g. if the route is modified), the system will ask you to insert the
navigation CD.
Navigation operations are limited if the navigation CD is not inserted. Some
functions, such as route modification, are “greyed out” and cannot be
selected.
The navigation system improves the route during the trip. The route initially
calculated may differ to the route actually taken.
The navigation instructions can be given in 9 languages (English, German,
Spanish, French, Italian, Portuguese, Dutch, Swedish and Czech). The
language can be selected using the
menu language
function in the setup
menu
Note
•
Snow or other obstructions on the GPS aerial or interference caused by
trees or large buildings could affect the reception of the satellite signals and
make positioning difficult. GPS reception can also be adversely affected by
the deactivation or malfunction of several satellites.
•
Street and town names can change, therefore the names stored on the CD
can in some cases be different from the names that have since been changed.
•
You can obtain navigation CDs from your dealer. Your dealer will also be
able to provide information on updates which are available for the CDs.
Navigation route guidance
Route guidance assistance is given both visually and acoustically:
•
by voice guidance
•
by the display in the dash panel
Fig. 93 Navigation:
Example of a display in
the dash panel
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