BMW 3: Installation locations and connections
BMW 3 Series G20 (2018-2025) Training manual / Electrical Heating / Installation locations and connections
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G20 PHEV, heater circuit
- Electric coolant pump
- Connection to the coolant circuit
- Heat exchanger for heating system
- Electrical heating
- Electrical changeover valve
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Connections at the electric heating
- Coolant feed line (from the electric coolant pump)
- Coolant feed line (to the heat exchanger for heating system)
- Coolant temperature sensor
- Equipotential bonding line connection
- Signal connector (low-voltage connector)
- Coolant temperature sensor connection
- High-voltage connector connection
- 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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Display on the Control Display
System activated/deactivated
Gray: the system is not
available.
White: the system is available but not
activated.
System is activated.
Parking space search is active.
The parking procedure is
active.
Steering control has been taken over
by system.
Parking space search and system
status
Overview
Button in the vehicle
Intelligent Safety
Camera
The camera is installed near the interior mirror.
Keep the windshield in front of the interior mirror
clean and clear.
Switching on/off
Switching on automatically
The lane departure warning activates automatically
after departure if the function wa
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