See also:

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

USB audio interface/mobile phone audio interface
At a glance It is possible to connect external audio devices. They can be operated via iDrive. The sound is output on the vehicle loudspeakers Connectors for external devices ▷ Connection ...

Switching between upper and lower case letters
Depending on the menu, you can switch between entering upper and lower case letters: ...