How to Solve the Problem of Fogging on the Outside of Car Windows?
2 Answers
Solutions for fogging on the outside of car windows are as follows: 1. Summer rainy days: Because it's raining, opening windows for convection to remove fog is not an option. Follow these steps: External circulation mode -> Maximum wind force -> Adjust to a lower temperature -> Air outlet front windshield mode -> Turn on the air conditioning. 2. Spring and autumn: When it's not too cold but there's fog inside the car, you don't need to turn on the air conditioning or the heater. Simply open the windows for convection. 3. Winter: Method one: After warming up the car, turn on the fan, set it to external circulation, direct the air outlet towards the front windshield, and blow hot air directly for 10 minutes. Method two: Warm up the car -> Ensure the water temperature is at normal operating temperature -> External circulation mode -> Maximum wind force -> Adjust to the highest temperature -> Air outlet front windshield mode -> Turn on the air conditioning. 4. Adjust the air conditioning outlet to the windshield mode, turn on the air conditioning switch to make the compressor work for dehumidification. However, if the temperature control knob is adjusted to the cold air mode, the car interior will be too cold, so you can place the temperature knob in the warm air position to achieve both defogging and heating. 5. Automatic air conditioning defogging operation is very simple. Turn on the automatic air conditioning, adjust the mode switch to the defogging mode, and the air conditioning will automatically switch to external circulation, allowing fresh air from outside to enter the cabin and start defogging. For manual air conditioning, first adjust the air direction switch to the defogging mode, start the external circulation to let fresh air blow in, and set the compressor and wind speed to the highest to speed up defogging. If the side windows are not defogging fast enough, it's best to close the two central air outlets so that the airflow from the side outlets can quickly disperse the fog. You can also open the windows slightly to speed up defogging.
I encountered this issue when I first started driving, especially on rainy days or winter mornings when the car windows fogged up badly outside, making it impossible to see anything, which was very dangerous. The solution is actually quite simple. The preferred method is to turn on the vehicle's air conditioning system and set it to the defogging mode. This mode automatically increases the airflow towards the windshield. If the car has a windshield heating function, turn that on as well—usually, there's a small fan-shaped icon on the button. Don't set the temperature too high; keeping it similar to the outside environment is best, as a large temperature difference can cause more fogging. While driving, keep the wipers on as they can help remove some of the fog. For prevention, keeping the glass clean is crucial. Regularly clean the outside with a cleaner to prevent grease buildup. Once, when I had severe fogging on the highway, I pulled over to a safe spot and wiped the glass with a towel, which helped a lot. Safety first—never rush when the windows are fogged up, as it can severely affect visibility.
