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:
Starting the engine
Automatic transmission
Starting the engine
1. Depress the brake pedal.
2. Press the Start/Stop button.
The ignition is activated automatically for a certain
time and is stopped as soon as the e ...
Wiper blade replacement
General information
Do not fold down the wipers
without wiper
blades
Do not fold down the wipers if wiper blades have
not been installed; this may damage the windshield.
Replacing the wiper ...
Tilt alarm sensor
The tilt of the vehicle is monitored.
The alarm system responds in situations such
as attempts to steal a wheel or when the car is
towed. ...
