What to Do When Headlights Have Condensation on Rainy Days?
2 Answers
Start the car engine and turn on the headlights to activate all functions. Driving the car directly will help the condensation inside the lights dissipate faster. If you notice frequent condensation in the headlights, it is mainly due to poor sealing of the headlight gasket. It is best to have the light assembly inspected. If the assembly is damaged, it should be replaced.
I find that fogging up of car lights is quite common on rainy days, especially when there's a big temperature difference. Since car lights aren't completely sealed and have ventilation holes, rainwater and cold air can enter and condense into fog when they meet the heat from the lights. Don't rush to the repair shop right away—try a simple method first: turn on your headlights when driving in the rain, as the heat can naturally dry out the fog. After parking, don't turn off the lights immediately; let them continue working for a while. If the fogging is still heavy, check the rubber seals around the light covers after turning off the engine to see if there are any cracks, and clean them with a cotton swab. When washing your car, avoid directing high-pressure water jets at the lights, as this can make it easier for water to seep in. If the fog persists for a long time, it may corrode internal wiring and affect lighting safety. So, make it a habit to check your lights after rainy days and dry them promptly—it saves both money and hassle.
