Genuine OEM Audi Charge Air Cooler Guide, part number 4H0145333A. This component is engineered to precisely guide airflow to the charge air cooler (intercooler), ensuring efficient heat exchange and optimal engine performance. It is installed on the left side of the charge air cooling assembly. Made from durable black plastic, it weighs 0.152 kg. Using a genuine OEM air guide ensures correct fitment and proper air routing, which is critical for maintaining the efficiency of the forced induction system.