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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 Warning function

Light in the exterior mirror Acute warning If there is a risk of collision, the light in the exterior mirror flashes and the steering wheel vibrates. A Check Control message is displayed at the same time. If necessary, an active steering intervention then takes place to prevent collisions and main

 Interior lights

General information Depending on the equipment version, interior lights, footwell lights, entry lights, ambient lighting, and speaker lighting are automatically controlled. Overview Buttons in the vehicle Interior lights Reading lights Switching the interior lights on/off Press the button. To swi

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