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:
Check the tire inflation pressure
regularly
Check and, if necessary, correct the tire inflation
pressure, at least twice a
month and before starting on a long trip.
Low tire inflation pressure increases rolling resistance
and thus raises ...
Dynamic Damping Control
The concept
This system reduces undesirable vehicle motion
when using a dynamic driving style or traveling
on uneven road surfaces.
The system enhances driving dynamics and
comfort as required ...
Setting the clock
1. Press the button. The main
menu is
displayed.
2. Turn the controller until "Settings" is highlighted,
and then press the controller.
3. If necessary, move the controller to the ...