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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 Functions in the map view

General information Different information can be called up for any point on the map and settings can be adjusted. Here, the map can alternatively be used via the touchscreen. Interactive map Operating the interactive map 1. Press the button on the Controller. 2. Press the Controller. 3. "Interac

 Coolant pump

The layout and function of the coolant pump have been revised and adapted to match the cooling concept of the B46TU/B48TU engines. Coolant pump Pressure relief valve closed (pressure < 2.2 bar / 32 psi) Pressure relief valve opened (pressure > 2.2 bar /

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