Genuine OEM Citroen Sliding Door Soundproofing Strip, part number 9810393280. This component is designed to be installed in the upper frame of the left-side sliding door, where it functions to reduce noise and vibrations. It acts as an insulating or sound-deadening strip, improving cabin acoustics and sealing. Choosing a genuine OEM soundproofing strip ensures the correct material composition, precise dimensions, and proper fitment, which are essential for effective noise reduction and long-term durability within the door assembly.