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:
1982: the second generation - four-door, Convertible, Touring and BMW M3,
plus the first diesel engine for the sports sedan
The new BMW 3-Series oozed progress and variety out of every pore, as its
fresh new design, optimised aerodynamics, improved space and comfort, higher
output and additional body and engine variant ...
BMW Info
General information
Messages from BMW regarding service actions
and news from BMW.
Selecting additional functions
The following functions are available when a
message is selected:
...
Charging the battery
In the vehicle, only charge the battery via the
terminals in the engine compartment, with the engine switched off. ...