Genuine OEM Audi Vacuum Hose Assembly, part number 06E133773CB. This assembly is responsible for routing vacuum pressure to various engine components, enabling their proper operation. It is located within the engine bay, connecting to intake and actuator systems. Constructed from durable rubber and plastic materials for longevity. Genuine OEM vacuum hoses ensure the correct internal diameter and material resistance to heat and vacuum fluctuations, critical for engine control.