BMW 3: Low-voltage Vehicle Electrical System
BMW 3 Series G20 (2018-2026) Training manual / Low-voltage Vehicle Electrical System
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Voltage supply
The 12 V vehicle electrical system of the G20 PHEV is essentially the same as
the electrical system of
the G20. The main difference lies in the fact that the power supply is no longer
by the al
Start-up system
Starter motor
The combustion engine B46 can be started via the conventional starter motor
and the electrical
machine.
The following table shows when and under which conditions the respective start
Terminal control for driving readiness
Terminal control from driver's view
Vehicle condition - DRIVING
Vehicle condition - RESIDING
Vehicle condition - PARKING
Transitional condition for establishing driving readiness,
ending driv
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Technical data
The following table provides an overview of the technical data of the G20
PHEV 330e compared with
the G20 330i and the F30 PHEV 330e.
* Values may increased, depending on the equipment.
Equipment
The G20 PHEV and G20 differ not only in the technical data but also in the
range of optional
eq
Electric A/C compressor
Electric A/C compressor (EKK)
Signal connector
Low pressure line (gaseous refrigerant at low temperature and low
pressure)
High-voltage connector
High pressure line (gaseous refrigerant at high temperature and high
pressure)
Electric A/C compressor (EKK)
The electric A/C compressor is a
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