Genuine OEM Audi Mirror Glass with Plate, part number 420857535B. This essential component serves as the reflective surface for the vehicle's exterior side mirror, providing crucial rear and side visibility for the driver. It typically includes the backing plate for attachment to the mirror housing. Weighing 0.155 kg and measuring approximately 19 cm in length, it is designed for precise fitment. Choosing genuine OEM mirror glass ensures correct optical clarity, distortion-free reflection, and proper integration with heating elements or blind spot monitoring systems, maintaining safety and functionality.