Genuine OEM Audi Engine Vacuum Line, part number 4M0131055A. This essential hose is designed to transmit precise vacuum pressure to various engine components, playing a critical role in the vehicle's emissions control system and overall engine performance. It ensures that vacuum-actuated systems operate correctly and efficiently. Measuring approximately 0.47 meters in length and weighing 0.0648 kg, this line is engineered for durability and resistance to engine bay conditions. Choosing a genuine OEM vacuum line guarantees the correct material composition, internal diameter, and routing geometry, which are vital for maintaining airtight connections and accurate vacuum signal delivery.