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.

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    Notes
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    Data transfer
    During the updating of BMW services, display the status of the data transfer. 1. "BMW Assist" or "ConnectedDrive". 2. "Options" Open. 3. "Data transfer" ...

    Programming
    General information 1. Switch on the ignition. 2. Initial setup: Press and hold the left and right button on the interior rearview mirror simultaneously for approximately 20 seconds until the L ...