Genuine OEM Audi Air Hose, part number 5QA129654H. This hose is designed to channel pressurized air within the engine's intake system, facilitating proper airflow to the turbocharger or engine. It is located within the intake and turbocharger assembly, as shown in the diagram. Made from durable, heat-resistant material, it weighs 0.3783 kg and has a specific curved geometry. Using a genuine OEM air hose ensures correct routing, pressure resistance, and material integrity for optimal engine performance and longevity.