BMW 3 Owners & Service Manuals

BMW 3: 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.

There is a coolant temperature sensor at the electrical heating output for this purpose. This way the IHKA control unit can decide whether the heat from the combustion engine is sufficient to heat the passenger compartment or whether the electrical heating should be switched on. If the temperature of the coolant is too low, the electric heating can heat up to a total of 6 stages. The electrical heating is always condition-based thanks to this control operation.

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 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

 Antifreeze and corrosion inhibitor

The cooling system of the G20 PHEV is filled with the new antifreeze and corrosion inhibitor Frostox HT-12. The new antifreeze and corrosion inhibitor increases the long-term stability and corrosion

 B46TU-B48TU Engines

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 Jacking points for the vehicle jack

The jacking points for the vehicle jack are located at the indicated positions. Jacking up the vehicle Warning Hands and fingers can be jammed when using the vehicle jack. There is a risk of injury. Comply with the described hand position and do not change this position while using the vehicle jac

 Music hard disk

General information Tracks from CDs and USB storage devices can be stored on the music hard disk in the vehicle and played from there. CD: the tracks are converted into a compressed audio format and stored in a directory that contains the name of the album. If no information about the album is

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