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:
Speed limit
Entry of a speed limit which, when reached,
should cause a Check Control message to be
issued.
Renewed warning if the vehicle speed drops below
the set speed limit once by at least 3 mph/
5 k ...
The concept
The central locking system becomes active
when the driver's door is closed.
The system simultaneously engages and releases
the locks on the following:
▷ Doors.
▷ Tailgate.
▷ ...
Strength of the driver's and frontpassenger airbag
The strength with which the driver's and front
passenger airbags are triggered depends on the
position of the driver's and front passenger
seats.
To maintain the accuracy of this function over
...
