Where is the air intake for the car's internal circulation located?
2 Answers
AC system's internal circulation air intake is located on the passenger side, at the lower part of the dashboard glove box. Below is relevant information about internal circulation: 1. Advantages: Internal circulation mainly prevents external dust and harmful gases from entering the vehicle in a timely and effective manner. For example, when driving through areas with smoke, dust, odors, or in dense traffic, it blocks harmful exhaust emissions from vehicles ahead. Internal circulation can enhance the cooling and heating effects of the AC and provides better insulation. 2. Disadvantages: Prolonged use of internal circulation can reduce air quality inside the vehicle, potentially causing dizziness. It's advisable to switch to external circulation for a few minutes after using internal circulation for a while, allowing fresh air to enter and improve air quality.
I've been driving for over thirty years and have seen the air intake vents for the recirculation mode in many car models. They're usually hidden under that plastic cover right below the front windshield. To be more specific, if you squat down and look at the area around the base of the wipers, you'll see a row of small mesh-like holes—that's the intake vent. When the car's air conditioning is in recirculation mode, air is drawn in through these vents to be reused, preventing outside dust and odors from getting in. I remember one time when leaves clogged my car's intake vent, causing the AC to blow air with a strange smell. After cleaning it out with a small brush, everything was fine. I recommend car owners check this spot during maintenance, especially after the rainy season when leaves tend to accumulate. A blockage can affect air quality and even slow down the AC cooling. Regular maintenance can save you a lot of hassle.
