toyota corolla headlight fogging

tonydude

This has severly affected my headlight, the headlights have developed some kind of fogging on the inside of the headlight and I cant get rid of it, same thing has affected my brothers corolla. Mechanic said he doesnt know how to clean it after failed attempts on other peoples cars. Does anyone got any ideaa how to sort it out without having to change the whole unit, seems to be happening to corollas, ive a 02 model

joujoujou

Usually there are small vents at the back of housing, ended by small rubber pipe. Maybe you have them blocked somehow?

Take a look if there are any small cracks, not only front of headlight may be affected.

Finally, if above fails, just run your car with your headlights always on - bulbs are hot, so heat will help with removing fog from lamps.

Ronnie Beck

Used to happen on my lancer. Bored one weekend I remove the headlight I removed the headlight. Took off the fitting for the bulb and dried the inside with a hairdryer. I sealed the mating surface between the glass and plastic mounting with bathroom silicon from a gun. The plastic fittings for the bulb I sealed with silicon spray. You can get it in any car shop.

I done all this first with the light still in place. This more or less worked, there was only a tiny bit forming in the corner. I think I put a silicon packet like the one you get in shoe boxes in the headlamp aswell. I think it was being caused by the gasket between the glass and mounting breaking down letting damp air in.

tonydude

Thanks for the suggestions but the fogging isnt causing by condensation its staining onto the glass, fog cloud effect is the only way I can describe it.

Ronnie Beck

http://www.youtube.com/watch?v=4QwzHOO-3lk

I'm guessing it's on the outside of the light not the inside then.

joujoujou

You won't succeed - unless you try.

joujoujou

tonydude wrote: »

[...] its staining onto the glass, fog cloud effect is the only way I can describe it.

Well, so below the solution appears.

Ronnie Beck wrote: »

http://www.youtube.com/watch?v=4QwzHOO-3lk

I'm guessing it's on the outside of the light not the inside then.

It's common thing on polycarbonate glass, caused by UV. :cool:

tonydude

Thanks alot lads, ye were spot on, the toothpaste worked wonders. Thanks