Genuine OEM Audi Exterior Mirror Mounting, part number 8T8857409C3FZ. This essential component serves as the base that securely attaches the entire exterior mirror assembly to the vehicle's door frame. It ensures the mirror remains stable and correctly positioned for optimal rearward visibility. Weighing 1.176 kg and finished with color code 3FZ, this mounting bracket is engineered to precise factory specifications. Using a genuine OEM mirror mounting ensures structural integrity, proper alignment, and resistance to vibration, which are critical for safety and longevity.