Genuine OEM Audi Rear Coil Spring, part number 5Q0511121EP. This critical suspension component is designed to support the vehicle's weight and absorb impacts from road imperfections, contributing to ride comfort and handling stability. It is positioned in the rear suspension assembly. Weighing approximately 1.94 kg, this spring is engineered for durability. Choosing a genuine OEM coil spring ensures the correct spring rate, precise dimensions, and material quality for optimal suspension performance and longevity.