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:
Folding down head restraints
Extending/retracting head
restraint
Only fold down head restraint if no passengers
are in the rear. Fold out retracted headrests
again if passengers are being carried in the
rear; otherwise, ...
Fuses
Notes
Replacing fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a substitute
of another color or amperage rating; this could
lead to a circuit overload, ul ...
Reassigning individual programs
1. Switch on the ignition.
2. Hold the hand-held transmitter at a distance
of approx. 1 to 3 in/2.5 to 8 cm from the
memory buttons.
The required distance depends on the particular
hand-held t ...