Genuine OEM Audi Vacuum Hose, part number 07L133240H. This hose is a critical component within the engine's intake system, responsible for conveying vacuum pressure to various actuators and sensors. As indicated by part 18 in the diagram, it is part of a complex network of lines. Weighing approximately 0.324 kg, this hose is designed to withstand engine bay temperatures and pressures. Choosing a genuine OEM vacuum hose ensures the correct routing geometry, precise connections, and material integrity, which are essential for maintaining proper engine operation and preventing vacuum leaks that can affect performance and emissions.