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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 USB connection

General information Mobile devices with a USB port are connected to the USB interface. Mobile phones. Audio devices such as MP3 players. USB storage devices. Common file systems are supported. FAT32 and exFAT are the recommended formats. A connected USB storage device will be supplied with ch

 Glass sunroof

General information The glass sunroof and the sun protection are operated using the same switch. Safety information Warning Body parts can be jammed when operating the glass sunroof. There is a risk of injury. Make sure that the area of movement of the glass sunroof is clear during opening and clos

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