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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 Overview

General information The Teleservices, intelligent emergency call or ConnectedDrive Services features are required to use the services and applications described here. The content and scope of the services that are available may vary by country. Therefore, it is possible that some of the services an

 Switching on/off and interrupting cruise control

With steering and traffic jam assistant: Assisted Driving General information This button is used to switch the configured function on and off. The button can be used to set the primarily used function. Set function 1. When the system is active, press the button repeatedly until the desired funct

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