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:

    System limits
    Personal responsibility The High-beam Assistant cannot serve as a substitute for the driver's personal judgment of when to use the high beams. Therefore, manually switch off the high beams in ...

    Entertainment
    Operation of the radio, CD equipment and external audio devices as well as their tone settings are described in this chapter. ...

    Real-Time Traffic Information (RTTI) is a reliable congestion-fighter
    The newly developed RTTI system from BMW ConnectedDrive can now also be ordered as an option for the new BMW 3-Series Sedan in conjunction with a BMW navigation system. The system is mobile phone- ...