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:

    Calling up settings
    Do not retrieve the memory setting while driving Do not retrieve the memory setting while driving, as an unexpected seat movement could result in an accident.◀ Comfort function 1. Ope ...

    High-beam Assistant
    The conceptThis system automatically switches the high beams on and off. The procedure is controlled by a sensor on the front of the interior rearview mirror. The assistant ensures that the high b ...

    Your individual vehicle
    You have decided in favor of a vehicle with individualized equipment and features. This Owner's Manual describes the entire array of options and equipment available for a specific model. As a ...