Genuine OEM Audi Rear Inner Door Seal, part number 8W9833721C. This seal is crucial for maintaining the integrity of the vehicle's interior, preventing drafts, water, and road noise from entering the cabin through the rear door frame. It is located on the inner perimeter of the rear door opening. Weighing approximately 1.358 kg, this seal provides a robust barrier. Choosing a genuine OEM door seal ensures the correct profile, material flexibility, and durability for effective long-term sealing performance.