Genuine OEM Volkswagen air line, part number 4E0616707A. This line is a critical component of the air suspension system, responsible for the controlled transfer of pressurized air between system components. It is located within the air suspension assembly as indicated in the technical diagram. Genuine OEM parts are manufactured to precise specifications to ensure airtight seals and resistance to pressure fluctuations, which is vital for maintaining consistent suspension performance and preventing system leaks.