See also:

Activating HDC
Press the button; the LED above the button lights up. ...

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 ...

Safety
Standard safety features include antilock brakes, side curtain airbags, active head restraints for the front seats and an electronic stability system. For a full list of safety features, visit th ...