What to Do When Headlights Get Foggy Due to Water Ingress?

[AngeloAnn]

It is quite common for car headlights to get foggy due to water ingress, and car owners need not worry too much. Here is some relevant information: 1. From the moment the headlights are turned on until they are in use, a significant amount of heat is generated. There is usually a ventilation rubber tube located at the rear cover of the headlight, which serves to expel the heat produced after the headlight is turned on. However, moisture in the air can enter the headlight through this tube and condense on the lens. As the moisture accumulates, it forms water droplets that eventually flow down the lens. This phenomenon typically occurs during significant temperature differences, such as in winter or during rainy seasons. 2. The best way to deal with foggy headlights is to turn them on. Normally, after the headlights have been on for a while, the fog will dissipate along with the heat through the ventilation tube, without causing any damage to the headlights or the electrical circuits. If the car owner has a high-pressure air gun or a hair dryer, setting it to the cold air mode and blowing air over areas in the engine compartment that are prone to moisture accumulation can help speed up air circulation and remove the moisture.