The most common failure of BMW N20 engine oil sump is oil leakage.

Possible causes of oil leakage of BMW N20 engine oil sump:

Material issues: An original oil sump is made of plastic. After it works at a high temperature for long, rubber aging and deformation may occur, leading to oil leakage.

‌Design defects of oil sump: According to user feedback, the design of N20 oil sump can cause poor oil flow in some situations and consequently prevent smooth lubrication of the engine under high load conditions.

Solutions to oil leakage of BMW N20 engine oil sump:

Replace the sealing gasket: If oil leakage is caused by aging or damage of a sealing gasket, the gasket should be preferably replaced. Make sure that a gasket made of high-quality sealing material in line with original factory standards is selected, and install it according to the manufacturer's specifications.

Replace the oil sump: If the oil sump has developed a crack or has been severely worn, it should be preferably replaced with a new one. Make sure that the new oil sump is installed in compliance with specifications to avoid further oil leakage.

Check oil pressure: If oil leakage is caused by high oil pressure, check the oil pump, oil circuit, and other relevant components, and ensure smooth oil flow in the circuit and normal oil pressure.

Use suitable oil: Make sure to use engine oil recommended for BMW vehicles. Change engine oil and oil filter regularly, and avoid using inferior oil, so as to reduce damage to the engine and the oil sump.

Improvement of vika BMW N20 engine oil sump:

Material: The original oil sump products are prone to oil leakage due to their plastic material. The vika BMW N20 engine oil sumps adopt an upgraded aluminum structure that is highly resistant to aging and oil leakage.