Genuine OEM Audi Engine Radiator Air Guide, part number 4M0121284DH. This component is designed to precisely direct air flow to the engine radiator, ensuring optimal cooling performance. It is installed on the left side of the radiator assembly. Made from durable black plastic, it measures approximately 0.575 meters in length. Using a genuine OEM air guide guarantees correct fitment and aerodynamic performance, vital for maintaining proper operating temperatures.