Genuine OEM Volkswagen Vacuum Hose, part number 03L131055CQ. This vacuum hose is part of the emissions control system, likely used to actuate components such as the EGR valve or turbocharger wastegate. It is located in the engine bay, connected to the intake manifold or vacuum pump. Made from heat and oil-resistant rubber. Genuine OEM parts are manufactured to precise specifications for reliable vacuum control and emissions compliance.