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:
Malfunction
Comfort Access may not function properly if it
experiences interference from external sources
such as mobile phones, metal objects, overhead
power lines, transmission towers, etc.
In this case, ...
Tire inflation pressures up to 100 mph/160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum driving comfort, note the pressure values
in the tire inflation pressure table, and adjust as necessary.
These pressure values can also be f ...
Checking the coolant level
1. Do not open the hood until the engine has
cooled down.
2. Turn the expansion tank cap counterclockwise
slightly to allow any accumulated pressure
to escape; then continue turning to
open.
...