Genuine OEM Audi Engine Vacuum Hose, part number 03L131552AP. This hose is a vital component in the engine's vacuum system, responsible for carrying vacuum pressure to various actuators and sensors that control engine functions. It ensures precise operation of components like the EGR valve, turbocharger wastegate, or brake booster. This flexible hose is designed for specific routing within the engine bay. Weighing approximately 0.047 kg, a genuine OEM vacuum hose guarantees the correct material composition and resistance to engine bay conditions, which is essential for maintaining consistent vacuum pressure and reliable engine performance.