Switching between letters and numbers

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

Switching between upper and lower

    See also:

    Reference
    This chapter contains technical data, short commands for the voice activation system, and an index that will quickly take you to the information you need. ...

    Destination entry by voice
    General information ▷ Instructions for voice activation system<>. ▷ When making a destination entry by voice, you can change between voice operation and iDrive. ▷ To ha ...

    Safety
    Both the coupe and convertible have front airbags plus side-impact airbags built into the front seats. As required of all 2012 models sold in the U.S., the 640i has standard antilock brakes and an ...