Genuine OEM Audi Left Radiator Air Guide, part number 4G8121283Q. This molded plastic panel is designed to precisely channel incoming airflow directly through the radiator core, maximizing cooling efficiency for the engine. It is installed on the left side of the radiator assembly. Constructed from durable, heat-resistant plastic, it weighs approximately 0.216 kg. Using a genuine OEM air guide ensures correct aerodynamic properties and exact fitment, critical for maintaining optimal engine operating temperatures.