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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    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.

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    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

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    Switching the wipers on/off and brief wipe Switching on Press the lever up until the desired position is reached. Resting position of the wipers: position 0. Rain sensor: position 1. Normal wiper speed: position 2. Fast wiper speed: position 3. Brief wipe and switching off Press the lever do

     Connecting mobile devices to the vehicle

    Concept Various connection types are available for using mobile devices in the vehicle. The connection type to select depends on the mobile device and the desired function. General information The following overview shows possible functions and the suitable connection types for them. The scope of fu

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