Genuine OEM Audi Exterior Mirror Mounting Frame, part number 83B857409K9B9. This critical component serves as the structural foundation for the left-side exterior mirror assembly, securely housing the mirror motor and providing attachment points for the mirror glass and outer cover. Positioned on the left side of the vehicle, it is finished in Satin Black (9B9). Weighing approximately 0.21 kg, this frame ensures the correct alignment and stable operation of the mirror. Using a genuine OEM mounting frame guarantees exact dimensions and material quality for proper mirror function and long-term reliability.