Changing the scale
1. 
Select the symbol.
2. To change the scale: turn the controller.
Automatically scaled map scale
In the map view facing north, turn the controller in any direction until the AUTO scale is displayed.
The map shows the entire route between the current location and the destination.
See also:
Software Update
The vehicle supports various external devices
depending on the current software version. With
a software update, the vehicle can support new
cell phones or new external device, for example.
...
Electronic displays
With the Professional navigation system
1 Selection list, such as for the radio
Navigation display
Speed limit detection
Computer
2 Transmission displays
3 Service requirements
Messages ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...