Self-leveling headlights

The self-leveling headlights feature adapts the light distribution to the contours of the road.

The light distribution is lowered on hilltops to avoid blinding oncoming traffic and tilted in depressions to increase visibility.

    See also:

    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 sensors
    The radar sensors are located under the rear bumper. The system may not be fully functional in the following situations: ▷ Dirty or icy bumper. ▷ Stickers on the bumper. A Check ...

    Switching the microphone to mute
    When a call is active, the microphone can be muted. 1. "Telephone". 2. "Active calls". 3. "Microphone mute" A microphone that has been switched to mute is automa ...