What does it mean when the Audi recirculation light is on?
1 Answers
The light being on indicates recirculation mode, while the light being off indicates fresh air mode. The function of the circulation: The light being on indicates recirculation mode, while the light being off indicates fresh air mode. The principle of circulation: In fresh air mode, the fan draws air from outside the vehicle into the cabin, meaning there is an open air passage between the exterior and interior. The air blown by the fan comes from outside, and even when the fan is off, airflow is still drawn into the cabin while driving to replenish fresh air. Sometimes you may feel airflow even when the fan is off, which is because the fresh air mode is set. When driving in congested urban areas, the cabin may fill with exhaust fumes, which is caused by using the fresh air mode. In recirculation mode, the airflow passage between the inside and outside of the vehicle is closed. Without the fan, there is no airflow circulation, and when the fan is on, the air drawn in comes only from inside the cabin, creating an internal airflow cycle.