Genuine OEM Audi Door Window Aperture Outer Seal, part number 8P4839477A. This seal is crucial for preventing water, wind, and debris from entering the vehicle's interior through the window aperture. It is positioned on the outer aperture of the rear left door window. Measuring 0.84 meters in length, this seal provides a precise fit and durable barrier. Using a genuine OEM seal ensures factory-correct dimensions and material composition for optimal sealing performance and longevity.