See also:

USB audio interface/mobile phoneaudio interface
At a glance It is possible to connect external audio devices. Operation can be performed via iDrive. The sound is output on the vehicle loudspeakers. Connectors for external devices ► Con ...

Managing the favorites
Activating/deactivating the favoritesFavorites can be activated and deactivated globally and individually. 1.  "Satellite radio" 2.  "Manage favorites" 3.  Sel ...

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 ...