BMW 3: Operating principle
BMW 3 Series G20 (2018-2024) Training manual / Electrical Heating / 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.
There is a coolant temperature sensor at the electrical heating output for this purpose. This way the IHKA control unit can decide whether the heat from the combustion engine is sufficient to heat the passenger compartment or whether the electrical heating should be switched on. If the temperature of the coolant is too low, the electric heating can heat up to a total of 6 stages. The electrical heating is always condition-based thanks to this control operation.
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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
B46TU-B48TU Engines
h1 {color: red;}
h2 {color: green;}
h3 {color: blue;}
h4 {color: #FF00FF;}
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BMW Touch Command
General information
As an alternative to the touch screen, rear entertainment
can also be operated with BMW Touch
Command.
For further information, see BMW Touch Command
in the Owner's Manual for the vehicle.
Operation via BMW Touch
Command
BMW Touch Command can be connected to the
left or right sc
Music hard disk
General information
Tracks from CDs and USB storage devices can
be stored on the music hard disk in the vehicle
and played from there.
CD: the tracks are converted into a compressed
audio format and stored in a directory
that contains the name of the album. If
no information about the album is
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