Genuine OEM Audi Engine Vacuum Line, part number 057131493E. This essential hose is responsible for transporting vacuum pressure to various engine components, playing a critical role in systems like emissions control, brake boosting, and engine management. It is typically routed within the engine bay, connecting different valves and actuators. This lightweight line weighs 0.055 kg and is designed for flexibility and durability. Choosing a genuine OEM vacuum line ensures correct routing geometry, proper sealing, and resistance to engine bay temperatures and fluids, which are vital for maintaining optimal engine performance and emissions compliance.