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Home >> BMW >> 2015 >> 640i 2D Coupe >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 97 (Functional Descriptions - 6-Series - Engine Performance Systems) >> Engine Performance - Functional Description >> Engine ventilation heating >> Notes

Engine ventilation heating: Notes

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When the engine is cold, the engine ventilation heating prevents ice formation from freezing condensation within the engine ventilation.

If freezing occurs in the engine ventilation system, the pressure in the crankcase may increase. This may cause engine oil to be burnt or pushed past gaskets out of the engine. The oil loss can lead to total destruction of the engine.

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