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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Vehicle tool kit
The onboard vehicle tool kit is located in the left
storage compartment of the cargo area under a
cover.
Wiper blades
Safety information
NOTICE The window may sustain damage if the wiper
falls onto it without the wiper blade installed.
There is a risk of damage to property. Hold the
wiper firmly w
With an emergency wheel:
enlarging the cargo area
Concept
The emergency wheel and any related components
can be temporarily removed to enlarge the
cargo area.
Removing the emergency wheel
and the storage compartments
1. To remove the cargo area floor, pull it upward
directly behind the rear backrests.
2. Remove tool holder and emergency wheel.
3.
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