As a company offering Modified BMW E 38 Headlamp, we use the Modified Nissan Teana Headlamp as an example to show you how to distinguish between headlight fogging and water ingress.
In the winter, many car owners will find that their car headlights will fog and condense a lot of water drops. Don't panic when you see this situation!
This is normal because there is a venting rubber tube on the back cover of the Modified Nissan Teana Headlamp. This rubber tube is used to remove the heat generated after the headlights are turned on and maintain the normal operating temperature of the headlights. The heat generated when the lamp is turned on is discharged from the vent pipe, but sometimes moisture enters the vent pipe to cause fogging in the lamp.
Usually, many people are not very clear about how to distinguish between Modified Nissan Teana Headlamp is water or fog, and often thinks it is water when it sees water droplets. In fact, the headlights are water or fogging. There is a way to make a preliminary judgment, that is, to see the traces of water flow.
When the headlights enter the water, it usually enters the water from the headlights and then flows under the headlights. This will form obvious traces of water flow. Like a waterfall, even if the water is dry, there will be some traces, just like a snail passing by. The road will have the same trace.
If you see that Modified Nissan Teana Headlamp is just water vapor formed below and it is still very clean, it is generally a normal situation of fogging. It is recommended to put some desiccant into it and often turn on the headlights to dry by turning on the lights. The water vapor inside can usually be dispersed in a week or so.
