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:
Oil types for refilling
Notes
No oil additives
Oil additives may lead to engine damage.◀
Viscosity grades for engine oils
When selecting an engine oil, ensure that
the engine oil belongs to one of the viscosity ...
Gear shift indicator
The concept
The system recommends the most fuel efficient
gear in the current driving situation.
Displays
Indicators to shift up or down are displayed in
the instrument cluster.
...
Deleting all stored programs
Press the two outer memory buttons for approx.
20 seconds until the LED flashes rapidly.
All stored programs are deleted.
The programs cannot be deleted individually ...
