See also:

Automatic mode
The Auto Start/Stop function is operational after each engine start. The function is activated above a certain speed. ► Automatic transmission: from 5 mph, approx. 9 km/h. ...

Front seats: adjusting the height
Adjust the head restraint so that its center is approx. at ear level. Electrical Electrical Adjusting electrically. ...

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 ...