See also:

Maximum cooling
Press the button. The system is set to the lowest temperature, maximum air volume and recirculated-air mode. Air flows out of the vents for the upper body region. Open them for this purpose. ...

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

Saving a function
1. Highlight the function via the iDrive. 2. Press the desired button for more than 2 seconds. ...