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:
Information on the navigation data
1. "Navigation"
2. Open "Options".
3. "Navigation system version": information on
the data version is displayed. ...
Interior
Even though it's relatively unchanged for 2009, the X3's interior remains
very upscale for this segment. My test car's dark brown leather upholstery and
black dashboard made for an especially clas ...
Requests
Do not use the voice activation system to initiate an Emergency Request. In stressful
situations, the voice and vocal pitch can change. This can unnecessarily delay the
establishment of a telephon ...