On-demand control of ancillary units saves energy

Intelligent energy management in the new BMW 3-Series is further enhanced by the ancillary units, which consume significantly less energy compared with conventional systems. Examples include the on-demand coolant pump, the electronically controlled oil pump and the electromechanical steering system, which only consumes electric power when steering assistance is actually required. The special air conditioning compressor featured on many of the sports sedan models works on the same principle. As soon as the driver switches the air conditioning off, the belt drive to the compressor is disconnected by a magnetic clutch, to minimise power drain.

    See also:

    Notes
    At high temperatures, the charge function of the mobile phone can be limited where appropriate and the functions are no longer executed. When the mobile phone is used via the vehicle, heed the ...

    Malfunction
    Comfort Access may not function properly if it experiences interference from external sources such as mobile phones, metal objects, overhead power lines, transmission towers, etc. In this case, ...

    General information
    The following functions are available: ▷ Use of a mobile phone as a telephone. Functions supported by the mobile phone are shown as a symbol during pairing. White symbol: the function is ac ...