Genuine OEM Audi Rear Left Door Outer Sealing Rubber, part number 83F839911A. This component is designed to seal the door opening, effectively preventing water, wind, and noise intrusion into the vehicle's cabin. It is positioned on the outer perimeter of the rear left door frame. Made from high-quality, flexible rubber, it maintains its sealing properties over time and includes an adhesive strip for secure installation. Using a genuine OEM door seal ensures precise fitment and optimal sealing characteristics, crucial for interior comfort and protection from the elements.