What should I do if the headlights fog into the water? What causes it?

Now the car has entered everyone's life, the car has traversed everyone's traffic, and at the same time brought a lot of trouble to everyone, many car owners will reflect that the headlights of the car will appear water mist and water droplets, for how this phenomenon is formed is actually very simple. Because of the temperature difference between the inside and outside of the car, coupled with the imbalance of air humidity in the surrounding environment, it is easy to generate water mist and water droplets in the headlights. And how to deal with this situation, in fact, there is no need to deal with it, you only need to turn on the headlights, and dry the water mist or water droplets inside through the heat generated by the headlights, so that this problem can be solved.

1. What is the cause of water mist or water droplets in the headlights?

First of all, we must understand how water droplets and water mist are formed, generally speaking, there is water vapor after the water is boiled, but water vapor will produce water mist or water droplets when it encounters a cold solid, and the car headlights are the same principle, because the car will produce a lot of water vapor during long-term driving, and this water vapor will enter the car headlights, and water mist or water droplets will be formed after being cold in the headlights, and this phenomenon is a very normal one, so the majority of car owners should not worry too much. <>

2. How to deal with the water mist and water droplets in the headlights.

In fact, there is no need for special treatment, the owner only needs to turn on the headlights when driving at ordinary times, so that the headlights will produce heat, and the water mist and water droplets in the inner shell of the headlights will be dried after the heat is generated, if in order to prevent the car headlights from entering the water mist again, the car owner can seal the car headlights for secondary treatment, as long as the sealing of the car headlights is strengthened and strengthened, then the fog is difficult to enter the inside of the car headlights. <>

3. Summary. In general, when the headlights of the car enter the fog or fog beads, the owner should not worry too much, the owner only needs to turn on the headlights, let the heat generated by the headlights dry the fog and water droplets, and at the same time, in order to prevent the water mist from entering the car headlights again in the later stage, you can drive the car to the auto repair shop, and then seal the car headlights for the second time, so that the sealing of the car headlights will be stronger, and the water droplets and water mist will not enter the inside of the car headlights. <>

You can turn on the switch next to the headlights, so that a ventilation can be realized, and the fogging inside can be solved. It is caused by relatively high temperature, poor air permeability, malfunction, or short circuit of headlights.

In the process of formation, if there is a special situation, it will cause the headlights to fog up, and at this time, the headlights can be heated to let the water vapor dissipate by itself.

Let the strong sunlight shine on the headlights, or you can turn on the lights, long-term lighting so that the fog inside evaporates; It may be that there is a water leak when it rains, or it may be that the temperature difference is large and there is fog in it.

This is normal, as soon as the headlights are turned on, the fog will evaporate and be expelled from the snorkel and return to a clear state.

The headlights of the car are not sealed, and its cavity has a ventilation tube, which will condense when the air humidity is large and the temperature difference between the inside of the lamp and the environment is large, which is a normal phenomenon.

Main advantages: Car headlights, also known as car headlights, car LED daytime running lights, as the eyes of the car, are not only related to the external image of a car owner, but also closely related to safe driving at night or in bad weather conditions. The use and maintenance of car lights cannot be ignored.

You can check whether the lampshade is damaged, see if the seal at the headlight lampshade interface is not tight, see if the rubber strip is loose or damaged, if there is no problem with the seal, it must be a leak on the lampshade, find a professional maintenance personnel to repair it with transparent glue.

The car lamp refers to the lamps on the vehicle, which is a tool for the vehicle to drive on the road at night, and it is also a reminder tool for various vehicle driving signals. Lights are generally divided into headlights, taillights, turn signals, etc. Water ingress into the car headlights, which is the so-called water mist from the headlights, which is due to the lack of tight sealing of the lights, which leads to water ingress in the lights when it rains or is cleaned, and fog will be formed when the temperature difference between the inside and outside is large.

Many people usually use warm air drying to remove water mist when water enters the headlights, however, this is not the right way for headlights. Today's car lights are generally integral, and there is a back plate to protect the lamp body behind the transparent lamp cover, and high-temperature baking will also cause the adhesive gum between the two to melt, increasing the possibility of water ingress into the lamp.

In addition, the lamp water ingress is slightly water ingress and serious water ingress, if the situation is serious, then it is necessary to disassemble it, and open the lamp cover, after drying, check whether the lamp surface is damaged or may leak places, if no abnormality is found, it is generally recommended to replace the lamp back cover sealing strip and ventilation tube.

Turn on the headlights, and you can't bake the headlight mask directly with the dryer. Usually within 15 minutes of turning on the headlights, the fog is evaporated by the heat generated by the headlights or discharged through the exhaust rubber pipe with the heat wave. This normal water mist generally does not cause damage to the headlight circuit or bulbs.

In addition to the temperature difference, after the vehicle wading, car washing, and cleaning the engine compartment, the stagnant water is not thoroughly dried or discharged, and it is possible that the water enters the headlights through the rubber tube.

When the headlights are on for a long time, a lot of heat will be generated, and this time it is necessary to take the heat out in time, usually using ventilation pipes to deal with it. When this heat is processed, the moisture in the air is transmitted to the inside of the lamp through the ventilation pipe, so it adheres to the surface of the lampshade, and it looks like the lampshade has a layer of fog, and when there is a lot of water mist, a water column will be formed. If the weather is humid and the temperature is relatively low, the temperature difference will occur after turning on the lights for a long time, and then the headlights will fog and enter the water.

If the owner Zheng Shouhan is not in a hurry to use the car, and the fogging and water of the headlights does not affect the use of the car, then you can wait for the sunny weather to turn the headlights back on, and if you continue for a period of time, the temperature will rise and the fog will slowly disperse. In addition to the fogging and water ingress due to natural factors, fog may also appear inside the car lamp when washing the car, at this time, you can also wait for the fog to dissipate naturally, and it does not need too much treatment, and the owner does not have to worry too much, and it will not have a very big impact on the car lights, and will not affect the use of the car. <>

People can't blindly take some methods to solve the problem of fogging and water in the headlights, if you want to use a hair dryer, dryer, etc. to deal with it, then it is likely to damage the lampshade. The material of the lampshade is generally plastic, and there is a high risk of melting and cracking at high temperatures. If you want to blow the headlights with cold air, even if it is blowing for a few hours, the problem of the headlights will not be solved.

People are not able to disassemble the lampshade by themselves, because it may cause poor sealing during the installation process, and it will affect daily use. <>

If you find that the lights are often fogged up, then you need to check whether the sealing of the lampshade is intact, whether the surface of the lampshade is cracked, and whether the ventilation pipe and vent hole are blocked. If the lights are often fogged up, then the light transmittance of the lights will be reduced, and the car is likely to affect the owner's senses during driving, and it will also bring great safety problems. The owner needs to drive the car to the repair shop in time, so that the professional person can deal with the lights, and not be able to repair the lights themselves, otherwise it will bring more trouble.

For the headlights to fog into the water, you can properly change the vehicle and place it in a well-ventilated environment, or you can properly turn on the headlights, so as to use the heat of the lights to effectively evaporate water; Or you can also remove the headlight accessories and use a hair dryer to dry the excess wheel tracks.

After the lights are turned on for a period of time, the fog will be exhausted with the hot air through the vent pipe, which will basically not damage the headlights and electrical circuits. If the sail search is serious, it is necessary to disassemble and open the lampshade, after drying, check whether there is any damage or possible leakage on the surface of the headlight, if no abnormality is found, it is generally recommended to replace the headlight back cover sealing strip and snorkel.

It should be sent to the repair shop for treatment in time, so that the relevant absolute finger Cong Hong stuffy personnel can clean and maintain the headlights accordingly. You should understand the solution method, pay attention to the fogging and water ingress of the headlights, and solve the problem according to the seepage and bending test in this regard.

The overall structure of the headlamp is that whether it is an ordinary halogen headlamp, a xenon headlamp or a headlamp with an LED light cluster, there is a ventilated rubber tube at the position of the back cover. From the moment the headlamp is lit, a large amount of heat is generated when the headlamp is used. In order to maintain the normal operating temperature of the headlamp and its stable use, the function of the snorkel is to exhaust this heat out of the headlamp as much as possible.

The reason why headlamps fog up is that moisture in the air enters the headlamp through the snorkel and adheres to the lampshade. As the water vapor gathers, water droplets also run down the lampshade. This is often caused by large temperature differences and is the most likely phenomenon to occur during the winter and rainy seasons.

After turning on the light for a while, the fog is exhausted through the vent tube along with the hot air, causing little damage to the headlamp and electrical circuit. For this situation, the driver friend should not act rashly. For example, do not burn the headlamp, otherwise the headlamp will easily break.

The appearance of the headlamp is plastic, and the excess heat can easily burn out the lampshade, and its damage is mostly irreparable. In addition to changes in the weather, other human factors such as cars without water, car washes, etc., the lights can sometimes turn into "teary eyes". When a vehicle wades through water, the engine and exhaust system itself are the largest heat sources, and the rain produces a large amount of water vapor, some of which enters the headlights through the snorkel.

Car washing is more straightforward, and some car owners prefer to use a high-pressure water gun to clean the engine compartment. After flushing, the water in the engine compartment is not treated in time, and after the engine compartment cover is closed, the water vapor cannot be dissipated to the outside of the car in time, and the water vapor in the engine compartment may enter the inside of the headlamp. How can you tell if the headlights are in the water or out of the fog?

Usually, many people don't know whether the headlights are flooded or fogged, and when they see water droplets on them, they tend to think that they are flooded. In fact, there is a way to preliminarily determine whether the headlamp is in water or fogging, that is, to look at the traces of water flow. When water enters the headlamp, it usually enters from above the headlamp and flows below the headlamp.

In that case, there will be a clear trace of water flow in the Swift Servant. Like a waterfall, even if the water is dry, it can be seen by an experienced master like a snail walking on the road. How to solve the problem of fog and water on the headlights?

If there is only water vapor underneath the headlamp, the top is clean and generally fogged. It is recommended to add desiccant to turn on the front lamp frequently, turn on the lamp to dry the water vapor inside, and it will generally wither in about a week. Regarding the cleaning of the engine compartment, please wipe it with cotton yarn or cloth, or blow it with high-pressure air to avoid "dampness" in the engine part as much as possible.

When water accumulates inside the headlamp, it is recommended to remove and open the cover, dry it and check whether there is any damage or possible leakage on the surface of the headlamp, and replace the sealing strip and snorkel of the headlamp shade if there is no abnormality. It is advisable to get into the habit of checking the lights regularly during the winter or rainy season, especially after the vehicle wades into the water. Early detection and early repair, early germination stage to eliminate failure, is the best choice for car maintenance.

After the headlights fog into the water, you can evaporate the water through high temperature or direct sunlight, or open the back cover of the waterproof cover of the headlights, put a pack of dry and wet agent, if it is particularly serious, you need to go to the 4S shop or the repair shop Kai Xianxian, otherwise it is very easy to cause a short circuit in the vertical process of driving, and the vehicle will spontaneously combust.

If the headlights fog into the water and dismantle the cherry blossoms, the only way is to remove the headlights to remove the moisture from the noisy bushes inside, and then install the headlights, and you can also seal the circumferential bend of the headlights, so that there will be no more water in the future.

A better solution is to let some cold air enter the interior of the car, and then through the temperature difference between cold and hot, the fog can be dissipated.

You can turn on the headlights to dry, you can open the waterproof cover, you can go to the repair shop to replace it, or you can wait for it to dissipate naturally, so that the fog can be removed. This bridge can prevent this starvation.

1. Usually when encountering fogging, as long as the headlights are used normally, it will be completely dispersed in about 1 week, if it is particularly serious, you can open the back cover of the waterproof cover of the headlights, turn on the headlights, let the bulb heat dry the fog inside, and then cover the waterproof cover after the bucket collapses and then cools down. It's also a good idea to put a sachet of desiccant. 2. Severe fogging (fog forming water droplets, water ingress, etc.), the only way is to go to the local modification shop or repair the silver store to solve the headlight problem, or replace the new headlight Luyuan assembly.

If the headlights are left unchecked, the aging of the headlight assembly will be accelerated, and the vehicle will spontaneously combust due to short circuits, which cannot be ignored.