Genuine OEM Audi Left Front Door Mirror Glass, part number 2G0857521B. This mirror glass serves as the reflective surface for the vehicle's left-hand side mirror, providing crucial visibility for the driver. Positioned on the front left side of the vehicle, it is designed for direct replacement. Weighing 0.2 kg, it is manufactured to precise optical standards. Choosing a genuine OEM mirror glass ensures correct curvature, heating element function (if equipped), and optimal clarity, which are vital for safety and proper integration with the mirror assembly.