Switching between letters and numbers
Depending on the menu, you can switch between entering letters and numbers:

See also:
Ride & Handling
One of my main criticisms of the regular X5, which was redesigned for the
2007 model year, is its regular suspension doesn't offer the balance between
ride comfort and handling prowess that I've c ...
Terminating the voice activation system
Briefly press the button on the steering
wheel or ›Cancel‹. ...
General information
1. Turn the controller: select letters or numbers.
2. Select additional letters or numbers if
needed.
3. "OK": confirm the entry.
...
