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 high-voltage battery unit of the G20 PHEV is manufactured by BMW itself
in Dingolfing /Germany.
The cells of the high-voltage battery unit are supplied by the Korean company
Samsung SDI. The
high-voltage battery unit was also developed by BMW AG itself.
The battery cells used in the hig
Wiper system
Switching the wipers on/off and
brief wipe
Switching on
Press the lever up until the desired position is
reached.
Resting position of the wipers: position 0.
Rain sensor: position 1.
Normal wiper speed: position 2.
Fast wiper speed: position 3.
Brief wipe and switching off
Press the lever do
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