In this video I show you how to replace the oil filter gasket specifically on a BMW 3 Series E90 with an N51 or N52 6 cylinder engine. The oil filter housing gasket is very common to start leaking which can lead to secondary failures due to oil contamination. I have seen serpentine belts come apart due to this oil leak and not only damage other components like coolant hoses, but also get sucked into the front main seal causing damage. I have also seen the belt material get into the engine through the front main seal causing the oil pan to need to be removed to clean out the debris that is clogging the oil pickup. The oil can also cause the water pump hoses to fail which can fail if they get oil onto the hoses.