How to do the fog inside the car headlights

Regarding the overall structure of the headlights, whether it is an ordinary halogen headlight, a xenon headlight, or a headlamp with an LED lamp, there is a vent rubber tube in the rear cover position. When the headlights are lit and even when the headlights are in use, a large amount of heat is generated. The function of the vent pipe is to discharge the heat out of the headlights as much as possible to maintain the normal operating temperature of the headlights and ensure the use of the headlights. stable.

It is this vent that the moisture in the air passes through it into the headlights and attaches to the lampshade. As the water vapor gathers, the water droplets flow down the lampshade. This situation is mostly caused by a large temperature difference, which is most likely to occur in winter and rainy seasons. In this case, the driver's friends need not worry too much. After the lights are on for a period of time, the fog will expel the light with heat through the vent pipe, which will not substantially damage the headlights and the electrical circuit. In this case, the driver's friends should not act rashly. For example, the headlamps must not be baked. This is very easy to damage the headlights. Because the headlights are all made of plastic material, the extra heat can easily bake the lampshades. Most of the damage is irreparable.

In addition to changes in the weather, human factors will also make the lights become "tears", like vehicle wading, car washing and so on. When the vehicle is wading, the engine and the exhaust system are relatively large heat sources, and the rainwater will form a large amount of water vapor on the surface. Along the ventilation pipe, part of the water vapor will enter the headlights.

The car wash is even more straightforward. Some owners like to wash the engine compartment with a high-pressure water gun, watching the mud and leaves be repulsed one by one by the high-pressure water gun in their hands. There is a kind of indescribable pleasure in the mind. After flushing, the accumulated water in the engine room was not treated in time. After the engine compartment cover was put on, the water vapor could not be quickly released outside the vehicle. The water vapor stuffy in the engine compartment could enter the interior of the headlights.

For the cleaning work in the engine room, we should use more cotton or cloth to wipe, or use high-pressure air blowing, as far as possible to avoid the engine parts "tide."

All of the above mentioned are relatively minor influx of water inside the lamp, but if the water inside your car headlight is enough to raise fish, then you have to dismantle it, open the lampshade, dry it and check it. The surface of the lamp is damaged or may leak. If no abnormality is found, we generally recommend replacing the seal of the headlight cover and the vent pipe.

In winter and rainy seasons, it is best for the owner to develop a habit of checking the lights regularly. For example, inspection after the vehicle is wading is necessary. Early detection of early remedy, the timely elimination of the fault in the bud, this is the only choice for car owners.