Genuine OEM Volkswagen Gas-Filled Hydraulic Shock Absorber, part number 5QM513029M. This shock absorber is a critical component of the vehicle's suspension system, responsible for damping spring oscillations and controlling wheel movement. It is typically located on the rear axle. Its function is to provide a comfortable and stable ride by absorbing road imperfections. Genuine OEM shock absorbers are engineered to meet exact performance standards, ensuring proper damping characteristics and long-term reliability.