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:

    Children should always be in the rear
    Accident research shows that the safest place for children is in the back seat. Transporting children in the rear Only transport children younger than 13 years of age or shorter than 5 ft/150 c ...

    Car washes
    Notes Steam jets or high-pressure washers When using steam jets or high-pressure washers, hold them a sufficient distance away and use a maximum temperature of 140 F/ 60 C. Holding them too ...

    Checking the engine oil level
    Your car is equipped with an electronic engine oil level check. Requirements ▷ The engine must be running and warm after the vehicle has been driven for at least 6.2 miles/10 km. ▷ ...