BMW 3 Owners & Service Manuals

BMW 3: Installation locations and connections

BMW 3 Series G20 (2018-2025) 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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    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 information that needs to be observed strictly in order to guarantee the smooth operation of the system. Orig

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