See also:

Temperature
Turn the wheel to set the desired temperature. The automatic climate control achieves this temperature as quickly as possible, if necessary with the maximum cooling or heating capacity, and ...

Controls
1 Screen, left 2 Screen, right 3 Controller with buttons 4 CD/DVD player ...

Selecting a channel
You can only listen to enabled channels. The selected channel is stored for the remote control currently in use. Via iDrive1.  "Radio" 2.  "Satellite radio" 3.  ...