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:

    Fresh Design. Well-Balanced Proportions.
    The body design of the 2011 BMW X5 is characterized by well-balanced proportions that accentuate the vehicle's powerful presence and agility. A long wheelbase, short front and rear body overhangs, ...

    Office information
    The number of unread messages and active tasks as well as the upcoming appointments are displayed. 1. "Office" 2. "Current office" 3. Select the desired entry to display det ...

    Entertainment
    The chapter helps assure your enjoyment when receiving radio and television stations and playing CDs, DVDs and tracks from the music collection. ...