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:
Warning stages
Prewarning
This warning is issued, for example, when there
is the impending danger of a collision or the distance
to the vehicle ahead is too small.
Acute warning with braking function
Warning ...
Front lamps, bulb replacement
At a glance
1 Adaptive light control
2 Parking lamp, daytime running lights*
3 Low beams/high beams
4 Turn signal
Xenon lamps
Because of the long life of these bulbs, the likelihood
of failu ...
Switching on/off directly
1. "Settings"
2. "Climate"
3. "Activate parked-car vent."
The symbol on the automatic
climate control
flashes if the system is switched on. ...