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
- Low-voltage connections
- High-voltage connections
- High-voltage cables
- Removing the flat high-voltage connector
- Removing the round high-voltage connector
- Connection for potential compensation lines
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Low-voltage connections
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
High-voltage connections
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
High-voltage cables
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 and operation
The function does not have any separate display or operating elements. The
function is only available
in the HYBRID ECO PRO driving mode. The function cannot be deactivated.
Recuperation is displayed as usual in the instrument cluster below the
drive-ready state indicator
(CHARGE area).
Direct rail
Injector mounting
Mounting bolts
Plastic sleeve (not required to be reinstalled after taken apart for
service)
Holding clamp with bayonet fitting
Rail
Solenoid valve injector
Casting lug
The solenoid valve injectors are fastened to the holding clamp with a bayonet
fitting. There is a pla
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