Genuine OEM Audi Engine Air Intake Hose, part number 4N0129615P. This crucial component is responsible for channeling clean, filtered air from the air filter box into the engine's intake system, ensuring proper combustion. It is positioned on the left side of the engine bay. Constructed from durable, heat-resistant materials, this hose maintains its shape and integrity under varying engine conditions. Choosing a genuine OEM intake hose guarantees correct routing geometry, airtight connections, and resistance to collapse, which are vital for maintaining engine performance and efficiency.