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:
Sport program DS and manual mode M/S
Activating sport program DS
Push the selector lever to the left out of transmission
position D.
DS is displayed in the instrument cluster.
The sport program of the transmission is activated. ...
Tire identification marks
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires. ...
Engine specifications
The rated power outputs are established on the
basis of fuel grade AKI 91.
...
