Genuine OEM Audi Radiator Support Air Guide, part number 4E0121283G. This air guide directs airflow for effective engine cooling, maintaining optimal operating temperatures. It is positioned on the left side, integrated into the radiator support structure. Weighing approximately 0.123 kg, this plastic component is designed for precise aerodynamic channeling. Using a genuine OEM air guide ensures correct airflow patterns and efficient heat exchange, vital for preventing engine overheating.