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:
1 Series M
Rather than the single-turbo setup from the 135i, the 1 Series M gets a
twin-turbo six-cylinder that's good for 335 hp and 332 pounds-feet of torque. In
extreme situations, the 1 Series M can ente ...
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, ultim ...
System limits
Check the traffic situation as
well
PDC cannot serve as a substitute for the
driver's personal judgment of the traffic situation.
Check the traffic situation around the vehicle
with your own ...