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:

    Tow-starting
    Note Do not tow-start your vehicle. Due to the automatic transmission, the engine cannot be started by tow-starting. Have the cause of the starting difficulties remedied. ...

    General information
    Whether or not text messages and e-mails from the mobile phone are displayed depends on whether transmission from the mobile phone to the vehicle is supported. Text messages and emails may not ...

    Reading out loud
    Text messages, e-mails, appointment entries, tasks, and notes can be read out loud. 1. Select the desired message, appointment, task, or note. 2. Select the symbol. The following options are a ...