Units of measure

To set the respective units of measure, miles or km for the odometer and ℃ or ℉ for the external temperature.

The setting is stored for the remote control currently in use.

    See also:

    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 an ...

    General information
    The sound settings are stored for the remote control currently in use. ...

    Sound output
    Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...