Genuine OEM Volkswagen Radiator Fan, part number 5Q0121203DS. This essential component is responsible for drawing air through the radiator, facilitating heat dissipation and preventing the engine from overheating, especially at low speeds or when idling. It is typically mounted directly behind the radiator in the engine bay. Weighing 2.615 kg, this fan assembly is designed for efficient airflow and quiet operation. Choosing a genuine OEM radiator fan ensures correct blade design, motor calibration, and electrical connections, providing reliable and effective engine cooling performance.