Genuine OEM Audi Rear Left Wheel Housing Liner, part number 4E0810171D. This protective component is designed to shield the wheel well from road debris, water, and other elements, preventing damage and corrosion to underlying vehicle components. It is specifically positioned for the rear left wheel arch. Made from durable, molded felt and plastic, it weighs 1.056 kg and measures 1.04m in length. Using a genuine OEM liner ensures an exact contour and bolt pattern for seamless installation and effective protection, maintaining the vehicle's structural integrity and appearance.