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.
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Controls
Activating
Switch position
with the ignition switched
on.
The turning lamps are automatically switched
on depending on the steering angle or the use
of turn signals.
Standstill function: to ...
All around the steering wheel
1 Seating comfort functions*
Gentleman function*
Seat, mirror, steering wheel
memory*
Active seat*
2 Roller sunblind* for rear window
3 Safety switch for the windows and the roller
sun b ...
Opening the tone settings in
the Options menu*
1. "CD/Multimedia" or "Radio"
2. If necessary, select additional entries, for example,
"FM" or "CD/DVD".
3. Open "Options".
4. "Tone"
...