Genuine OEM Audi Vacuum Hoses, part number 079131055DK. These hoses are part of the engine's air intake or emissions control system, managing vacuum pressure or airflow to various actuators. They are located within the engine bay, connecting to components such as the intake manifold or secondary air injection system. Constructed from durable materials resistant to heat and oil. Genuine OEM ensures precise fitment and material integrity for consistent system performance.