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:
Radar sensor
Position
Radar sensor
Dirty or covered sensor
A dirty or covered sensor may hinder the detection
of vehicles.
▷ If necessary, clean the radar sensor. Remove
layers of snow and ice care ...
Look well ahead when driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehicle
driving ahead of you.
Driving smoothly and looking ahead reduces
fuel consumption. ...
Automatic-Transmission
Switching off the engine
1. Engage transmission position P with the vehicle
stopped.
2. Press the Start/Stop button.
The engine is switched off.
The radio ready state is switched on.
3. Set th ...
