Genuine OEM Volkswagen Rear Coil Spring, part number 1K0511115CS. This critical suspension component is engineered to support the vehicle's weight and absorb impacts from road irregularities, contributing to ride comfort and stable handling. It is specifically designed for the rear suspension assembly. Weighing approximately 2.5 kg, this spring is built to precise factory specifications. Opting for a genuine OEM coil spring guarantees the correct spring rate, material fatigue resistance, and overall dimensions, which are vital for maintaining the vehicle's intended ride height, handling characteristics, and safety.