What are the consequences of not addressing water ingress in headlights?

[PaisleyLee]

If there is water accumulation inside the headlights, it will affect the light transmittance, significantly reducing visibility at night. Here is some information regarding the repair of car headlight water leakage: 1. Minor water ingress: For relatively slight cases of water inside the headlights, there is no need to worry too much. After the headlights are turned on for a while, the fog will dissipate through the vent tube along with the heat, which generally does not damage the headlights or electrical circuits. 2. Severe water ingress: In cases of severe water ingress, the headlight cover needs to be removed to check for any damage or potential leakage points on the headlight surface. If any abnormalities are found, it is recommended to replace the headlight rear cover seal and vent tube.