Genuine OEM Audi Shock Absorber Buffer, part number 5Q0412303F. This crucial component is installed on the front shock absorber shaft, designed to limit its upward travel and prevent harsh bottoming out. It acts as a progressive spring, absorbing energy during extreme suspension compression. Made from durable rubber, it weighs approximately 0.0804 kg and is 0.08 meters long. Using a genuine OEM buffer ensures the correct material properties and dimensions, maintaining ride comfort, protecting suspension components, and preserving vehicle handling characteristics.