BMW 3 Owners & Service Manuals

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
Connections of the Electrical Machine Electronics with lines

  1. Connection for potential compensation line
  2. Low-voltage connector
  3. High-voltage cable (DC) to the high-voltage battery unit
  4. High-voltage connection to convenience charging electronics
  5. Output, DC/DC converter -12 V
  6. High-voltage cable (AC) to the electrical machine
  7. Coolant feed line
  8. Coolant return line
  9. Output, DC/DC converter +12 V
  10. Ventilation

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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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 Time

Setting the time zone Via iDrive: 1. "CAR". 2. "Settings". 3. "General settings". 4. "Date and time". 5. "Time zone:". 6. Select the desired setting. The setting is stored for the driver profile currently used. Setting the time Via iDrive: 1. "CAR". 2. "Settings". 3. "General settings". 4.

 Functions

The cooling system has 2 operating conditions, which result from its function: Cooling OFF Cooling ON Cooling OFF operating condition The "Cooling OFF" operating condition is active when the cell temperature is in or below an optimal range. This is generally the case if the vehicle is moved at

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