BMW 3: Electrical Heating
BMW 3 Series G20 (2018-2026) Training manual / Electrical Heating
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Installation locations and connections
G20 PHEV, heater circuit
Electric coolant pump
Connection to the coolant circuit
Heat exchanger for heating system
Electrical heating
Electrical changeover valve
Connections at the elect
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
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Integrated key
General information
The driver's door can be locked and unlocked
without the vehicle key using the integrated key.
The integrated key also fits the glove compartment.
Safety information
Warning
For some country versions, unlocking from the
inside is only possible with special knowledge.
Persons w
Jump-starting
General information
If the battery is discharged, the engine can be
started using the battery of another vehicle and
two jumper cables. Only use jumper cables with
fully insulated clamp handles.
Safety information
DANGER
Contact with live components can lead to an
electric shock. There is a risk of
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