See also:

Caring for special components
Light-alloy wheels Use wheel cleaner, particularly during the winter months. Do not use aggressive, acidic, strongly alkaline or abrasive cleaners, or steam jets above 140 ℉/60 ℃; f ...

Brightness
Setting the brightness To set the brightness of the Control Display: 1. "Settings" 2. "Control display" 3. "Brightness" 4. Turn the controller until the desired ...

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 ...