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
SEE MORE:
Steptronic transmission: BMW
Digital Key
Concept
BMW Digital Key allows the vehicle to be unlocked
and locked, as well as started, with a
compatible smartphone.
General information
BMW Digital Key varies by country and may be
unavailable.
To unlock and start a vehicle with a compatible
smartphone, a digital key must be installed on
this s
General information
Depending on the vehicle equipment and country
version, various settings for opening and closing
are possible.
These settings are stored for the driver profile
currently used.
Unlocking and locking
Doors
Via iDrive:
1. "CAR".
2. "Settings".
3. "Key button settings".
4. Select the symbol.
5. Sel
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