See also:

Navigation data
Information on the navigation data 1. "Navigation" 2. Open "Options". 3. "Navigation system version": information on the data version is displayed. Updating the nav ...

Unbuckling the belt
1. Hold the belt firmly. 2. Press the red button in the belt buckle. 3. Guide the belt back into its reel. ...

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 ...