Genuine OEM BMW Oil Spray Nozzle, part number 11117531576. This component is responsible for spraying lubricating and cooling oil onto specific engine parts, such as pistons and connecting rods, to reduce friction and dissipate heat. The precise angle and volume of the oil spray are critical for engine health and longevity. Genuine OEM oil spray nozzles are manufactured to exact tolerances to ensure proper lubrication and cooling of vital engine components.