Genuine OEM Audi Engine Breather Line, part number 06D103215A. This critical component manages crankcase gases, allowing them to escape or recirculate to maintain optimal engine pressure and reduce harmful emissions. It is typically located as part of the crankcase ventilation system, connecting the engine block to the intake system. Constructed from durable corrugated metal, it is designed to withstand high temperatures and engine vibrations. Measuring approximately 0.183 meters in length, this genuine OEM breather line ensures precise fitment, proper gas flow, and long-term reliability, preventing oil leaks and maintaining engine health.