BMW 3 Owners & Service Manuals

BMW 3: 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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 Stored stations

General information Up to 50 stations can be stored. Selecting a station 1. "MEDIA". 2. "Radio". 3. "Presets". 4. Select the desired station. Deleting a station 1. "MEDIA". 2. "Radio". 3. "Presets". 4. Highlight the station you want to delete. 5. Move the Controller to the right. 6. "Delete

 DC/DC converter

The DC/DC converter in the Electrical Machine Electronics of the G20 PHEV is able to adopt the following operating modes: Standby (also in the event of a component fault or short circuit, power electronics off) Buck mode (energy flow to the low-voltage side, converter adjusts voltage on

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