How to Solve the Problem of Side Window Fogging?
2 Answers
Turn on the air conditioning, set it to the hot air direction, switch to external circulation, and then press the defrost button. This allows outside air to enter the car, reducing the temperature difference. If the fogging is not severe, you can choose to slightly open the window to reduce the temperature difference between the inside and outside of the car. The fog will gradually disappear. Spray a small amount of defogging agent on the window, then wipe it clean. This not only cleans the window but also forms a protective film on it.
I've been driving for over a decade and often encounter side window fogging issues, especially during rainy or cold weather when in a hurry. I remember one time on the highway when the fog was so thick I could barely see the road and nearly had an accident. I slammed on the brakes, quickly turned on the defroster mode, cranked the fan to maximum, aimed the airflow at the side windows, and activated the A/C to dehumidify—it cleared up in minutes. Normally, I pay attention to keeping the interior dry, like not bringing in wet umbrellas or leaking bottles, and using the fresh air mode to circulate air. Also, parking in shaded areas reduces temperature differences, and regularly replacing the cabin air filter helps minimize fogging. If it keeps happening, I'd recommend checking if the window seals are aged or leaking air and replacing them promptly—safety first.
