Genuine OEM Audi Coil Spring, part number 5Q0511115CT. This coil spring is a critical suspension component responsible for supporting the vehicle's weight and absorbing road imperfections. It is located in the front suspension assembly. Constructed from high-strength steel, it ensures durability and consistent performance over time. Genuine OEM coil springs are manufactured to precise specifications for optimal fit and function, maintaining the vehicle's intended ride quality and handling characteristics.