The Genuine BMW Clutch Lever Return Spring (D=18mm) - 35311165749 is a small, but essential component of the clutch system in BMW vehicles. This spring is designed to provide tension and assist in the smooth return of the clutch lever after it has been pulled. It has a diameter of 18mm and is made from high-quality materials to ensure durability and reliability. This specific spring is a genuine BMW product, meaning it has been manufactured to meet the strict standards and specifications set by the brand. It is an important part of the overall clutch system and is crucial for proper functioning of the vehicle.