Genuine OEM Audi Oil Strainer, part number 03C115175. This small but crucial component is designed to pre-filter larger debris and contaminants from the engine oil before it reaches the main oil pump. It is typically located at the oil pump pickup tube within the oil pan. The fine mesh screen prevents harmful particles from circulating through the engine's lubrication system. Choosing genuine OEM ensures the correct mesh size, material durability, and proper fitment, which are essential for effective oil filtration and protecting vital engine components from wear.