What to do if there is fog in the headlights of the car on a rainy day

Updated on Car 2024-06-10
14 answers
  1. Anonymous users2024-02-11

    1. Car headlights.

    Reasons for the fog in it:

    1. Temperature difference change: Turning off the lights immediately after using them for a long time can easily cause the lights to fog up.

    2. Improper car washing: use high-pressure water guns.

    Washing car lights can easily cause water droplets to flow into the vents, causing the lights to fog up.

    3. Wading too deep: Once the depth of the water exceeds the wheels, it will enter the headlights from the vents.

    4. Rain and snow can easily lead to water ingress into the headlights, which will then produce fog.

    Second, the solution to the fog in the headlights of the car:

    1. Park your car in the sun or in a dry place.

    2. Start the car engine.

    Turn on the headlights.

    Light up all the features.

    3. Drive the car directly, and the fog in the lamp will dissipate faster.

    4. If you find that the headlights frequently appear water mist, the main thing is the headlight sealing ring.

    The seal is not good, it is best to check the lamp body, the current lights are generally integral, if the damage is more obvious, it is better to replace it.

    Car triviawith hot air. Blowing glass can also blow the fog away, but because the water temperature is very low when it is first started, it takes a while for the air conditioner to blow hot air, so it takes longer than blowing with cold air. In addition, when the air is blowing, the fog in the car will become larger, because the temperature difference between the inside and outside is greater, and the fog will disappear after the hot air dries the moisture in the car.

    Fogging of car glass is common, and the main reason for fogging is the condensation of water vapor, but this greatly affects the driver's vision and leaves a hidden danger for traffic accidents. By using the refrigeration function of the car air conditioner, the effect of defogging can be effectively achieved, in addition to refrigeration, the use of air conditioning to heat and supply air to dry the water vapor in the car can also achieve the effect of defogging, but it should be noted that the fog will suddenly become larger when the hot air is turned on, so the car must be parked before the hot air defogging.

    The above content reference: People's Daily Online - Car Knowledge How to prevent car glass from fogging.

  2. Anonymous users2024-02-10

    The headlights will fog up and can be 2113 for the following two reasons.

    1. If there is 5261 water, it may be that its dense 4102 sealing is not good, or the 1653 fog lamp fogging caused by rainy days and car washing is more likely.

    2. The temperature difference and humidity are caused by changes, the air usually carries more than 50% of the humidity, the humidity in the south is heavier, and some places may reach more than 90% in the case of rain.

    The headlights are constructed with ventilation holes to balance the pressure of air expansion in the headlights. Therefore, even if the headlights are well sealed, air will inevitably enter the headlights through the channel. However, reflective headlights are not very prone to fogging, because there is light on the surface of these headlights, and moisture cannot adhere to it at all.

    Therefore, in order to pursue a better lighting effect, the current car headlights are all using lens headlights, because the light is more concentrated, so that the lighting effect of the road surface can be improved several times. Only a small part of the mirror surface of the headlights is heated, so most of the moisture is concentrated on the outside of the morning lights, which is easy for the owner to see, and he will think that it is water.

    The difference between water inlet and air intake.

    1. If water enters, it will have a greater impact on the lights, and there will be relatively clear water marks, which is not good for the lighting effect.

    2. The impact of moisture is relatively small, mainly in the process of car washing or in the case of humid weather, but with the opening of the headlights, the fog will naturally dissipate after the temperature rises, so don't worry too much.

  3. Anonymous users2024-02-09

    Normal.

    Fogging of car headlights is a normal phenomenon. We all know that a lot of heat is generated from the moment the headlights are lit until they are in use. There will be a ventilation rubber tube on the back cover of the headlight, which is used to dissipate the heat generated after the headlight is turned on.

    However, the moisture in the air will enter the headlamp through it and attach to the lampshade, and as the water vapor gathers, it forms water droplets and flows down the lampshade.

    Car headlight precautions.

    The car needs to do a good job of daily maintenance, whether the oil filter needs to be replaced, whether the brakes are good, and the same headlight bulb also needs to be checked regularly to see if it is in good condition, and it also needs to be replaced in time.

    Generally speaking, every 50,000 kilometers or about 2 years of the car, the brightness of the headlight bulb will be weakened, this time you need to go to the 4S store for testing, if the brightness of the car lamp is insufficient, it is best to replace the bulb in time, it is best to replace the left and right sides at the same time, in order to keep the brightness uniform.

  4. Anonymous users2024-02-08

    It is normal for headlights to fog up on rainy days.

    Because there is a ventilation and heat exhaust rubber tube at the back cover of the headlight structure, and because the moisture of the air of the rubber tube enters the headlamp and attaches to the lampshade to produce water mist, there will be water droplets in serious cases, which is most likely to occur in winter and rainy seasons.

    In addition, there is a vehicle wading or car wash will appear, we turn on the headlights for a period of time, water mist or a small amount of water droplets will evaporate, if the water droplets are serious, it is recommended that you go to the 4S shop to deal with.

  5. Anonymous users2024-02-07

    Hello, this is a normal phenomenon, the headlights due to the temperature difference, the headlights are designed with ventilation holes, due to the humid air on rainy days, there will be water mist in the headlights, which is normal, turn on the headlights lights, after a period of time, the water mist in the headlights will disappear naturally, I hope it can help you.

  6. Anonymous users2024-02-06

    There's no problem, don't worry, when the weather is good, it's normal

  7. Anonymous users2024-02-05

    Maybe there is a gap in the headlights and water is ingress.

  8. Anonymous users2024-02-04

    The main reason is that when the temperature in the lamp drops suddenly, the external high humidity air enters the inside of the lamp, and the water vapor condenses on the inside of the lampshade to form a water mist, in order to ensure the balance of the pressure inside and outside the headlamp, the headlamp assembly is designed with a vent hole with dustproof function, the fog in the lamp will disappear naturally under normal circumstances, and if the water vapor in the lamp accumulates too much, it is necessary to carry out the operation of removing the fog. If the fog cannot be removed, or condenses into more moisture, it may be caused by the headlamp is not tightly sealed, and it should be repaired at a repair shop, and a warranty claim should be made if it is determined to be a quality problem. Headlights are consumable parts and have a shorter warranty period.

    There are two situations of water ingress into the headlights, one is fogging, but it is normal for the lights to disappear automatically for half an hour; There is also a kind of water droplets, if the light can not disappear automatically for half an hour, there may be two reasons, one is the quality problem, and the other is that the lamp body has been damaged by external force.

  9. Anonymous users2024-02-03

    It is recommended to check whether the back cover of the headlamp and the seals are damaged, the moisture in the headlamp will cause the line to age in advance and affect the life of the bulb, but it is not obvious in a short time.

  10. Anonymous users2024-02-02

    Vehicle headlight fogging is a common physical phenomenon, the main reason is that the external high humidity air enters the inside of the lamp when the temperature in the lamp plummets, and the water vapor condenses on the inside of the lampshade to form water mist, in order to ensure the balance of the pressure inside and outside the headlamp, the headlamp assembly is designed with a ventilation hole with dustproof function, the fog in the lamp will disappear naturally under normal circumstances, if the water vapor in the lamp accumulates too much, it is necessary to carry out the fog removal operation. If the fog cannot be removed, or condenses into more moisture, it may be caused by the poor sealing of the headlights, and it should be repaired at the maintenance station, and the warranty claim can be made if it is determined to be a quality problem.

  11. Anonymous users2024-02-01

    When it rains, the headlights fog up, which is abnormal. It may be because the headlight sealing strip is inactive, there is a problem with the seal, and moist air enters, so after heavy rain or car washing, fog will appear inside the headlights.

    The solution is to replace the headlight back cover seal and snorkel. Do not bake the headlights, which can easily damage the headlights, because the exterior of the headlights is made of plastic, and the extra heat can easily bake the lampshade, and most of this damage is irreparable.

  12. Anonymous users2024-01-31

    How to solve the fogging of car headlights in rainy days:

    1. Due to the rain, the car is washed, and a large amount of water has entered the headlights of the cars in the Heng Ski Preparation, indicating that the headlights have been seriously sealed and watered;

    2. At this time, there is not only a large amount of fog inside the headlights, but also a large amount of water;

    3. If your car is washed, after rain, after snow, there will always be a lot of fog and water in the headlights, then the headlights must be replaced or re-sealed with a new seal.

  13. Anonymous users2024-01-30

    What to do if the rain headlights fog up The treatment method of the rain headlights fogging: 1. The fogging of vehicle headlights is a common physical phenomenon, the main reason is that the temperature in the lamp drops sharply, and the humid air from the outside high track ruler enters the inside of the lamp, and the water vapor condenses on the inside of the lampshade to form water mist; 2. In order to ensure the balance of the pressure inside and outside the headlamp, the headlamp assembly is designed with a vent with dustproof function, and the fog in the lamp will disappear naturally under normal circumstances. 3. If the fog cannot be removed, or the difference condenses into more moisture, it may be caused by the poor sealing of the headlamp, and it should be repaired at the maintenance station, and the warranty claim should be made if it is determined to be a quality problem. @2019

  14. Anonymous users2024-01-29

    The reason why there is water mist in the headlamp is that the water vapor in the headlamp forms a film-like and water-beaded condensation on the surface of the mask below its saturation temperature, that is, the result of the water vapor encountering the lampshade under certain conditions and the gas-liquid transformation on its surface. After the fog inside the headlight appears, in the state of lighting, the time required for 1 to slow the fog in the cavity can be completely eliminated; At rest, at a humidity of 5

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