Genuine OEM Audi Rear Coil Spring, part number 8W0511115DQ. This essential suspension component is designed to support the vehicle's weight and absorb impacts from road irregularities, contributing to ride comfort and handling. It is positioned in the rear suspension assembly, working in conjunction with the shock absorber. Weighing approximately 3.6 kilograms, it is built for durability. Choosing a genuine OEM coil spring ensures the correct spring rate and material fatigue resistance, maintaining factory ride height and suspension performance.