BMW 3 Owners & Service Manuals

BMW 3: Installation locations and connections

BMW 3 Series G20 (2018-2024) Training manual / Electrical Heating / Installation locations and connections

Installation locations and connections
G20 PHEV, heater circuit

  1. Electric coolant pump
  2. Connection to the coolant circuit
  3. Heat exchanger for heating system
  4. Electrical heating
  5. Electrical changeover valve

Installation locations and connections
Connections at the electric heating

  1. Coolant feed line (from the electric coolant pump)
  2. Coolant feed line (to the heat exchanger for heating system)
  3. Coolant temperature sensor
  4. Equipotential bonding line connection
  5. Signal connector (low-voltage connector)
  6. Coolant temperature sensor connection
  7. High-voltage connector connection
  8. Housing

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     Operating principle

    If the driver adjusts a desired temperature at the IHKA controls, the IHKA calculates a corresponding nominal temperature and compares it to the actual output temperature of the electrical heating.

     Low coolant temperature

    When the coolant temperature is low, for example after driving off, or in all-electric driving, the electric changeover valve is activated by the Body Domain Controller (BDC). The electrical changeo

     Antifreeze and corrosion inhibitor

    The cooling system of the G20 PHEV is filled with the new antifreeze and corrosion inhibitor Frostox HT-12. The new antifreeze and corrosion inhibitor increases the long-term stability and corrosion

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     Using the phone

    Accepting a call Depending on the equipment, incoming calls can be answered in several ways. Via iDrive: "Accept" Press the button on the steering wheel. Via the selection list in the instrument cluster: Use the thumbwheel on the steering wheel to select: "Accept" Via touch screen: tap o

     Closed tray in the center console

    General information The mobile phone must not exceed the maximum size of approximately 6.0 x 3.1 x 0.7 in/154.5 x 80 x 18 mm. Overview Example for a transversely installed tray. LED Storage area Example for a tray on the right side. LED Storage area Example for a tray on the left side.

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