What to Do When the Outside of Both Car Windows Fogs Up?
2 Answers
The reason for the fogging on the car windows is the significant temperature difference between the inside and outside of the vehicle in the current environment. Depending on the driving conditions, use the front windshield defrosting function to address the front windshield. For vehicles equipped with automatic air conditioning and the ability to select vent positions, choose the front windshield and center vent positions, and turn on the rear windshield heating function. If you cannot select both vent directions simultaneously, turn on the front windshield defrosting and rear windshield heating functions. If the side windows fog up, slightly open the windows to remove the fog.
As a frequent driver, I've encountered many instances where the outside of both side windows fog up, especially after rain or on humid mornings. Initially, I always start the car, turn on the air conditioning in blow mode, set it to the windshield defrost position, and let it dry the moisture on the outer surface. If the fogging is light, pressing the wiper button a couple of times usually clears it; if the wipers don't work or the glass is too dirty, I keep a clean cotton cloth handy to wipe the outside of the window after getting out of the car, which works better. To prevent fogging from recurring, I regularly clean both the inside and outside of the windows, using a cleaner to remove grease and stains, reducing condensation points. Additionally, reducing humidity inside the car is crucial, such as ensuring the air conditioning is set to an appropriate temperature, avoiding prolonged use of recirculation mode, ventilating by opening windows when parked, or applying anti-fog spray to the glass surface. Safety comes first—poor visibility due to fogging can easily lead to accidents. After dealing with it, I check if the wipers are worn out and need replacement.
