BMW 3: Connections
The connections at the Electrical Machine Electronics can be divided into
four categories:
- Low-voltage connections
- High-voltage connections
- Connection for potential compensation line
- Connections for coolant lines.

Connections of the Electrical Machine Electronics with lines
- Connection for potential compensation line
- Low-voltage connector
- High-voltage cable (DC) to the high-voltage battery unit
- High-voltage connection to convenience charging electronics
- Output, DC/DC converter -12 V
- High-voltage cable (AC) to the electrical machine
- Coolant feed line
- Coolant return line
- Output, DC/DC converter +12 V
- Ventilation
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In the low-voltage connector at the Electrical Machine Electronics the
following lines and signals are
combined:
Terminal 30 from the hybrid power distribution box
Terminal 30 from the f
At the Electrical Machine Electronics, there is a total of three high-voltage
connections to connect the
lines for other high-voltage components. The connections for the electric A/C
compressor and
The high-voltage cables connect the high-voltage components and are
identified by orange cable
sleeves. The manufacturers of hybrid cars have agreed on a uniform
identification of the high-voltage
c
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Displays of operating conditions
The hybrid-specific operating states and the state of charge of the
high-voltage battery unit are
displayed in the instrument cluster and, if desired, in the Central Information
Display (CID).
The displays shown below may appear, depending on the driving situation
Concept
iDrive includes a large number of functions.
These functions can be operated via the Controller
and, depending on the equipment version, via
touchscreen, voice activation system or gesture
control.
Safety information
Warning
Operating the integrated information systems
and communication de