See also:

Activation/deactivation
Press the button. ...

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 ...

Radar sensor
Position Radar sensor Dirty or covered sensor A dirty or covered sensor may hinder the detection of vehicles. ▷ If necessary, clean the radar sensor. Remove layers of snow and ice care ...