Genuine OEM Volkswagen Air Filter, part number 2N0129965A. This air filter filters impurities from the air entering the engine to prevent damage and ensure efficient combustion. It is essential for maintaining engine health and performance. The part measures 0.055m in length, 0.026m in width, and 0.026m in height. Genuine OEM air filters are designed with specific media and micron ratings to effectively capture contaminants while allowing optimal airflow.