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:
Controls
At a glance
Switching on
Press the button on the steering
wheel.
The marking in the speedometer is set to the
current speed.
Cruise control can be used.
Switching off
Deactivated or interr ...
Starting destination
guidance
1. "Navigation"
2. Make a destination entry.
3. "Accept destination"
4. "Start guidance"
The route is shown on the Control Display.
The distance to the destination/i ...
Coolant temperature
Should the coolant, and with it the engine, become
too hot, a Check Control message is displayed.
Check the coolant level. ...
