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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    Tool kit
    Tool kit The tool kit is stowed under the cargo floor panel in the cargo area. ...

    Removing: Electrical* head restraints
    Note Do not remove the rear head restraints. To avoid damage, they can only be installed by your service center. Removing Only remove the head restraint if no one will be sitting in the seat ...

    System limits
    Sudden tire damage Sudden serious tire damage caused by external influences cannot be indicated in advance. ◀ The system does not operate correctly if it has not been reset. For exampl ...