See also:

Locking and unlocking
Press the button in the vehicle. The doors and the tailgate are locked or unlocked when the front doors are closed, but they are not secured against theft. The fuel filler flap remains unlock ...

Audio playback
Selecting a track using the buttonPress the button for the appropriate direction as often as necessary until the desired track is reached. Selecting a track using iDriveAudio CDs 1.  " ...

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 ...