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:
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 br ...
Installing child restraint systems
Observe the child restraint system manufacturer's
instructions when selecting, installing and using child restraint systems. Otherwise,
the protective effect may be diminished.
Standard chil ...
Switching the high beams on and off
manually
Switching the high beams on and off
manually
▷ High beams on, arrow 1.
▷ High beams off/headlamp flasher, arrow 2.
To reactivate the High-beam Assistant, press
the button on the t ...