It rained all night, and the next day you will find that there is a layer of fog or even water in the headlights or taillights of your car, which is depressing!
Whether it is an ordinary halogen headlight, a xenon headlight, or an LED headlight, there will be a ventilation rubber tube. The moisture in the air will enter the headlight through the rubber tube and attach to the lampshade. As the water vapor condenses, the water droplets will flow along. It flows down the lampshade. This phenomenon is most likely to occur during large temperature differences, winter and rainy times. When a vehicle is wading through water, since the engine and exhaust system themselves are relatively large heat sources, rainwater will form a large amount of water vapor on them. Some of the water vapor will also enter the headlights along the breather pipe.
Some car owners also like to flush the engine directly with a high-pressure water gun, but the accumulated water after flushing is not dealt with in time, causing the accumulated water to flow along the rubber tube and into the interior of the headlight.
In fact, when encountering this situation, car owners don't have to worry too much. After the car is turned on, the mist will be discharged out of the lights through the ventilation pipe along with the hot air, and will not damage the headlights and electrical circuits. Brother Cang reminds you that you must not bake car headlights. Headlights contain a lot of plastic materials, and baking them will reduce the life of the materials.
Brother Cang also wants to remind everyone that you should not worry too much if your car fogs up while driving, but you should be careful if the car lights get water. Water intrusion will affect the lighting effect of the headlights, posing safety risks. If it is within the warranty period, go to the 4S store quickly.
