Genuine OEM Audi Engine Air Intake Hose, part number 4L0129628E. This hose is designed to channel filtered air from the air filter box into the engine's intake manifold, ensuring a clean and steady supply of air for combustion. It is a critical component in the engine's air management system. Constructed from durable, flexible, and heat-resistant materials, it measures approximately 0.327 meters in length. Choosing a genuine OEM hose ensures correct routing geometry, proper sealing, and resistance to engine bay temperatures and pressures, preventing air leaks and maintaining engine efficiency.