The car's headlights are not completely sealed, but have vents to balance the internal and external air pressure. Therefore, on rainy days, the temperature of the headlight glass will drop sharply, water molecules will solidify, and fog will form inside the car lights.
If the car lights fog up, we must first investigate the cause of the fogging. If you are driving through water on a rainy day or have just washed the car, then it is very likely that the headlights are filled with water. Secondly, we need to check whether the headlights are damaged. If the headlight dust cover is not damaged or cracked, it is likely that there is a problem with the sealing gasket. Because the sealing is not tight, water seeps into the headlights, causing fogging.
If the headlights are not damaged and the seals are fine, then it is most likely a problem with the hot and cold temperature difference. Generally, this happens when we use lights, but this happens only occasionally, and when exposed to heat Finally, the fog in the headlights will slowly dissipate.
There is fog on the headlight lampshade. The fog will disappear naturally one hour after the headlight is turned on. If it is determined that there is a problem with the headlight, you need to go to the repair shop for repair in time.
