There is fog or water inside the car headlights.
Many maintenance friends, drivers and friends have encountered this.
Today we’ll take a closer look at why.
This picture is only for functional explanation and does not represent the actual vehicle configuration. Please refer to the actual vehicle for specific configuration.
The inner world of headlights | Structural principles
As far as the overall structure of the headlight is concerned,
Whether it is ordinary halogen headlights,
Or xenon headlights?
Or headlights with LED light sets,
There are ventilation rubber tubes or breathable membranes on the back cover.
At the moment when the headlights are turned on, even the headlights
A large amount of heat will be generated during use,
The role of a vent tube or breathable membrane
That is to discharge the heat away from the headlights as much as possible.
to maintain the normal operating temperature of the headlights,
Make sure the headlight is stable in use.
This picture is only for functional explanation and does not represent the actual vehicle configuration. Please refer to the actual vehicle for specific configuration.
Structural reasons for headlight fogging | Snorkel/breathable film
It's this snorkel,
Moisture in the air will enter the headlight through it and adhere to the lampshade.
As water vapor accumulates,
Drops of water flowed down the lampshade.
Environmental causes of headlight fogging | Temperature difference
This situation is mostly caused by large temperature differences.
This phenomenon is most likely to occur in winter and rainy seasons.
This picture is only for functional explanation and does not represent the actual vehicle configuration. Please refer to the actual vehicle for specific configuration.
Headlight fogging | Solution
? When encountering this situation, you don’t need to worry too much. After the car lights are turned on for a period of time, the mist will be discharged out of the lights through the ventilation pipe along with the hot air. This will basically not damage the headlights and electrical circuits.
? When there is fog or water stains in the car lights, turn on the headlights more often when the weather is fine. At a certain vehicle speed, the water vapor will dissipate faster and the water stains in the lights will disappear naturally;
? If there are traces of water in the lamp that cannot be dissipated through the above methods, please go to the Geely 4S store for inspection in time.
Notice:
In this case, friends should not act rashly. For example, never bake the headlights. Doing so can easily damage the headlights, because the outer surfaces of the headlights are made of plastic material, and the extra heat can easily bake the lampshades. Most of this damage is irreparable.
PS car tips | How to prevent headlights from fogging
? In addition to weather changes, human factors can also cause water to enter the car lights, such as vehicle wading, car washing, etc.
? When the 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 enter the headlights along the breather pipe.
? Car washing is more straightforward. Some car owners like to use a high-pressure water gun to flush the engine compartment and watch the mud and leaves being knocked back one by one by the high-pressure water gun in their hands. After flushing, the water vapor in the engine compartment is not dealt with in time. After the engine compartment cover is closed, the water vapor cannot be quickly dispersed outside the car, and the moisture trapped in the engine compartment may enter the headlights.
? For cleaning work in the engine compartment, we should more often use cotton or cloth to wipe it, or use high-pressure air to blow it to avoid "moisture" in the engine part as much as possible.
