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:
Washer fluid reservoir
Adding washer fluid
Only add washer fluid when the engine is
cool, and then close the cover completely to
avoid contact between the washer fluid and hot
engine parts.
Otherwise, there is the ...
Ride & Handling
One of my lasting memories of the prior-generation X3 was its extremely firm
ride, which led to a choppy driving experience on rough roads. It was
disappointing, to say the least, because BMWs oft ...
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 ...