Genuine OEM Audi Left Charge Air Cooler Guide, part number 4M0145333G. This molded plastic component is positioned on the left side of the charge air cooler assembly, specifically designed to direct and optimize airflow to the charge air cooler. It ensures maximum heat exchange efficiency for the compressed intake air. Weighing 0.506 kg, this guide is crucial for maintaining engine performance. Using a genuine OEM charge air cooler guide ensures precise fitment, durable construction, and maintains the engineered airflow characteristics for optimal turbocharger and engine efficiency.