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 and convertible. The standard eight-speed automatic transmission includes steering-wheel-mounted shift paddles.

Other standard features include computer-controlled adaptive shock absorbers and Driving Dynamics Control, which allows the driver to adjust the ride quality, accelerator response, power-steering assist level and automatic transmission behavior.

Optional mechanical upgrades include active stabilizer bars and active steering, the latter of which adds rear-wheel steering to the earlier generation's variable-ratio front steering system.

    See also:

    High beams, headlamp flasher
    High beams, headlamp flasher ▷ High beams, arrow 1. ▷ Headlamp flasher, arrow 2. ...

    Programming
    Programming 1. Memory buttons 2. LED Fixed-code hand-held transmitters 1. Switch on the ignition, refer to page 61. 2. Initial setup: Press both outer memory buttons 1 for approx. 20 seconds ...

    Fuel filler flap
    Opening 1.  Open the fuel filler flap. To do so, lightly press the rear edge. 2.  Turn the fuel cap counterclockwise. 3.  Place the fuel cap in the bracket attached to the fuel fille ...