Genuine OEM Audi Door Mirror Cap, part number 5LB857537AGRU. This component covers and protects the exterior mirror assembly from impacts and environmental elements. It is designed for the left side of the vehicle. The cap is supplied in a primed (GRU) finish, ready for painting to match the vehicle's body color. Choosing a genuine OEM mirror cap ensures a precise fit, correct mounting points, and a surface optimized for factory-quality paint adhesion.