Genuine OEM Audi Coil Spring, part number 8P0511115T. This coil spring is a fundamental part of the vehicle's suspension system, responsible for supporting the vehicle's weight and absorbing impacts from the road surface. It works in conjunction with the shock absorber to provide a smooth and controlled ride. The spring is made from high-strength steel, engineered for durability and consistent performance. Genuine OEM ensures the correct spring rate and material composition for safe and effective operation.