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:
Controls on the interior rearview mirror
► LED, arrow 1.
► Buttons, arrow 2.
► The hand-held transmitter, arrow 3, is required
for programming. ...
Navigation bar overview
The functions of the navigation bar symbols can
also be stored on the programmable memory
buttons ...
Image on the Control Display
Switching on the rear view camera
using iDrive
With PDC activated:
"Rear view camera"
The image of the rear view camera is displayed.
The setting is stored for the remote control cur ...