Use coasting conditions

When approaching a red light, take your foot off the accelerator and let the vehicle coast to a halt.

On a downhill gradient, take your foot off the accelerator and let the vehicle roll.

The flow of fuel is interrupted while coasting.

    See also:

    Roadside Assistance
    Service availability Roadside Assistance can be reached around the clock in many countries. You can obtain assistance there in the event of a vehicle breakdown. Roadside Assistance The Roadside ...

    Tilt alarm sensor
    The tilt of the vehicle is monitored. The alarm system responds in situations such as attempts to steal a wheel or when the car is towed. ...

    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 ...