See also:

Replacing the battery
1. Take the integrated key out of the remote control. 2. Push in the catch with the key, arrow 1. 3. Remove the cover of the battery compartment; see arrow 2. 4. Insert a battery of the same ty ...

General information
The interior lamps, footwell lamps, entry lamps and courtesy lamps are controlled automatically. The brightness of some of these lamps is influenced by the thumbwheel for the instrument lightin ...

Under the Hood
The 640i is powered by a 315-horsepower, turbocharged 3.0-liter six-cylinder engine. Its peak torque rating is 332 pounds-feet. BMW cites a zero to 60 mph time of 5.5 seconds for both the coupe an ...