Genuine OEM Audi Air Guide, part number 5NN121283B. This component is designed to precisely direct airflow through the radiator and other cooling system components. It is positioned on the left side of the cooling assembly, ensuring efficient thermal management. Constructed from durable plastic, it weighs approximately 0.151 kg and measures 0.5 meters in length. Choosing a genuine OEM air guide ensures correct aerodynamic properties and mounting points, critical for maintaining optimal engine operating temperatures and preventing overheating.