Genuine OEM Citroen Front Door Groove Guide, part number 9817221880. This component is designed to guide the door window glass smoothly within its channel, preventing rattling and ensuring proper alignment during operation. It is located in the front left door assembly. This guide is crucial for maintaining the integrity and quiet operation of the window system. Genuine OEM guides are manufactured to precise dimensions and material specifications, ensuring optimal friction and durability for the window's travel.