Genuine OEM Audi Outer Air Guide, part number 4M0121333D. This component is designed to precisely channel ambient airflow to critical engine components for effective cooling. It is positioned as an outer guide on the left side of the engine bay. Made from durable black plastic, it weighs 0.506 kg and measures approximately 0.5m in length. A genuine OEM air guide ensures the correct aerodynamic profile and mounting points, which are essential for maintaining optimal cooling efficiency and preventing overheating.