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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 Tow-starting and towing

Safety information Warning Due to system limits, individual functions can malfunction during tow-starting/towing with the Intelligent Safety systems activated. There is a risk of accident. Switch all Intelligent Safety systems off prior to tow-starting/towing. Steptronic transmission: transporting

 Automatic climate control - adjusting the air flow manually

Concept The air flow for climate control can be adjusted manually. General information To adjust the air flow manually switch off AUTO program first. Operation Press the lower or upper side of the button: decrease or increase air flow. The selected air flow is shown on the climate control display.

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