BMW 3 Owners & Service Manuals

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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 In the vicinity of the center console

Control Display Hazard warning system Intelligent Safety Ventilation Glove compartment Automatic climate control Radio/multimedia, see Owner's Manual for Navigation, Entertainment, and Communication Controller with buttons Parking brake Automatic Hold Driving Dynamics Control SPO

 Anticipatory hybrid drive

The anticipatory hybrid drive has been revised and enhanced with the G20 PHEV. The driver can find this function under "Anticipatory hybrid drive" in the vehicle literature and the vehicle's integrated owner's manual. Here, with active route guidance by the navigation system the route is ana

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