See also:

On-demand control of ancillary units saves energy
Intelligent energy management in the new BMW 3-Series is further enhanced by the ancillary units, which consume significantly less energy compared with conventional systems. Examples include the o ...

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 ...

Actions in the event of a flat tire
Normal tires 1. Identify the damaged tire. Do this by checking the air pressure in all four tires. If the tire inflation pressure in all four tires is correct, the Tire Pressure Monitor may not ...