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:
Reporting safety defects
For US customers
The following only applies to vehicles owned
and operated in the US.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you ...
Opening/closing the glass sunroof and
sliding visor together
Press the switch twice in the
desired
direction past the resistance
point.
The glass sunroof and sliding visor
move together. Pressing the
switch again stops the motion.
Convenient operat ...
Functional readiness of the airbag
system
When the ignition is switch on, the warning
lamp in the instrument cluster lights
up briefly and thereby indicates the operational
readiness of the entire airbag system
and the belt tensione ...
