BMW 3 Series G20 (2018-2025) Training manual
BMW 3 Series G20 (2018-2025) Training manual
The BMW 3 Series G20 training manual is designed to provide detailed information and instructions to BMW technicians and dealership staff regarding the features, systems, and maintenance of the BMW 3 Series G20.
- Introduction
- Drive Components
- Electrical Machine
- Electrical Machine Electronics
- Introduction
- Connections
- Tasks
- DC/DC converter
- Power electronics for activation of the electrical machine
- High-voltage power management
- Voltage supply for other high-voltage consumers
- Cooling
- Antifreeze and corrosion inhibitor
- High-voltage Battery Unit
- Charging the High-voltage Battery Unit
- Hybrid Brake System
- Low-voltage Vehicle Electrical System
- Bus Systems
- Display and Operating Concept
- Driving modes
- Displays in the instrument cluster
- Displays in Central Information Display
- Load point increase
- Operating Strategy
- Climate Control
- Electrical Heating
- B46TU-B48TU Engines
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General information
Symbols used
The following symbol is used in this document to facilitate better
comprehension or to draw attention to very important information:
Contains important safety information and informatio
Training
Qualification to work on the high-voltage system of the G20 PHEV (Hybrid
Generation 4.0) can
be acquired via the respective web-based training if the service employee meets
the following
prereq
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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
option is used:
Auxiliary battery
G20 PHEV, auxiliary battery
Safety battery terminal 2 (SB
Removing the flat high-voltage connector
Bridge for high-voltage interlock loop
Before the high-voltage connector can be
disconnected, the bridge for the high-voltage
interlock loop must first be removed. The bridge
closes the circuit of the high-voltage interlock
loop in a connected state. The SME and EME
control units continuous
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