Genuine OEM Audi Door Mirror Glass, part number 4KE857535A. This component serves as the reflective surface for the exterior side mirror, providing critical rearward visibility for the driver. It is specifically designed for the left side of the vehicle. Engineered for optical clarity and durability, it may also include features like heating elements for defrosting or blind spot monitoring indicators. Choosing genuine OEM mirror glass ensures correct dimensions, curvature, and any integrated electronic functions, providing optimal visibility and seamless integration with the mirror assembly.