Genuine OEM Audi Internal Fender Air Routing, part number 4J3809964. This component is designed to direct and manage airflow within the right-side fender area. It plays a role in optimizing ventilation and potentially cooling specific components or managing aerodynamic flow. The part weighs 0.094 kg and measures 0.325 meters in length. Using genuine OEM air routing components ensures precise fitment and proper air management, which is crucial for maintaining intended thermal and aerodynamic performance.