Genuine OEM Audi Lower Coil Spring Underlay, part number 5Q0512297G. This underlay provides a crucial cushion between the coil spring and its mounting surface, absorbing vibrations and reducing noise. It is positioned at the lower end of the coil spring. Measuring 0.107m in length and width, and 0.04m in height, it weighs 0.087 kg. Choosing a genuine OEM underlay ensures the correct material composition and durometer for optimal vibration dampening and long-term durability within the suspension system.