Genuine OEM Volkswagen Rear Coil Spring, part number 5Q0511115MS. This coil spring is a critical component of the vehicle's rear suspension system, designed to support the vehicle's weight, absorb road impacts, and maintain proper ride height. It is installed on the rear axle. Weighing approximately 2.285 kg, this spring is manufactured to precise specifications for spring rate and durability. Using a genuine OEM coil spring ensures the correct spring rate and material fatigue resistance, which are essential for maintaining vehicle handling, stability, and ride comfort.