2012 BMW N20 Engine – Oil Filter Housing Update Kit
The Problem 2012 BMW with the N20 engine presented with an apparent coolant and oil intermix fault, in other words, the normally green antifreeze was black with oil, and antifreeze had gotten into the engine oil. Testing confirmed that coolant was being contaminated with engine oil, and the engine oil was noted to have a white foamy mixture on the dipstick and fill cap. Tech diagnosed as a defective engine oil filter housing, the original housing was plastic, BMW has since released an update kit which is constructed of aluminum. Repair Tech replaced oil filter housing with update kit, engine oil and filter [...]