Is the Volkswagen Air Recirculation Light On or Off?

[MaximusFitz]

In Volkswagen vehicles, the air recirculation light being on indicates that the system is activated. When the light is off, it means the system is in external air circulation mode. The air recirculation system not only prevents dust from entering the vehicle but also reduces the impact of dust on the air conditioning filter. Meaning of Air Recirculation: When the air recirculation mode is engaged, the airflow passage between the inside and outside of the vehicle is closed. Without the fan running, there is no airflow circulation. When the fan is on, the airflow drawn in comes solely from inside the vehicle, creating an internal airflow cycle. Functions of Air Recirculation: The primary function of the air recirculation system is to effectively block external dust and harmful gases from entering the vehicle. This is particularly useful when driving through areas with smoke, dust, unpleasant odors, or heavy traffic, as it helps block harmful exhaust emissions from preceding vehicles. Another function is to maintain the interior temperature.