Genuine OEM Volkswagen Left Front Door Mirror Glass, part number 7J0857521F. This component provides the critical reflective surface for the exterior rearview mirror, essential for safe driving and rear visibility. It is designed for the left front door mirror assembly. Measuring approximately 250mm in length and 150mm in width, this mirror glass ensures a precise fit. Opting for genuine OEM mirror glass guarantees correct optical properties, heating element function (if applicable), and exact dimensions for seamless integration and optimal visibility.