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:

    Display
    1 Lane departure warning 2 Active Cruise Control 3 Desired speed 4 Navigation system 5 Speed The collision warning, Night Vision pedestrian warning, or Check Control messages are displayed ...

    Managing music
    Albums Renaming an album The name of the album, if available, is automatically entered when the album is stored. If the name is not available, it can be changed later if desired. 1. "CD/ ...

    Malfunction
    A Check Control message is displayed. Adaptive light control is malfunctioning or has failed. Have the system checked as soon as possible. ...