See also:

Opening/closing the glass sunroof and sliding visor together
Press the switch twice in the desired direction past the resistance point. The glass sunroof and sliding visor move together. Pressing the switch again stops the motion. Convenient operat ...

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 ...

Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...