BMW 3: Operating principle
BMW 3 Series G20 (2018-2026) 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 Teleservices
Concept
Teleservices are services that help to maintain
vehicle mobility.
General information
The offering depends on the equipment version
of the vehicle and the country-specific variant.
For further information on the available services,
the vehicle manufacturer recommends contacting
a service ce
Buttons on the vehicle key
Unlocking
Locking
Opening the trunk lid
Press and hold or press three times in quick
succession: panic mode
Press briefly: headlight courtesy delay feature
Unlocking the vehicle
Press the button on the vehicle
key.
Depending on the settings, either only the driver's
door or all vehicle ac
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