Genuine OEM Volkswagen Window Slot Seal, part number 4N0839475CT94. This seal is crucial for preventing water, wind, and debris from entering the vehicle's interior through the window opening. It is positioned as item 4 in the diagram, along the window slot of the door. Made from durable materials, this genuine OEM seal ensures a precise fit and maintains optimal cabin insulation and weather protection, preventing costly water damage and reducing road noise.