Hi friends my Toyota Corolla 2003 left side (passenger side) headlamb is developing a water vapour inside, and it clears sometimes in the afternoon unda a hot sunlight or when a highbeam light is switched on for long time.
I attached the pictures of it.
Please advice me on how to clear it out

The seal around the headlight is perished, allowing water sip in. The water evaporates under sunlight + when you turn on you headlight, due to the fact that the heat source evaporates the liquid.

I'm not a car expert but I can reply based on a similar experience I've had....your left headlamp allows water vapor into it which condenses then disappears again due to heat because there is an entry point for d vapor around d sides of the lamp shade.....d cause could either be a reassembly error after you probably changed the bulb the last time it was changed or the headlamp has given way.try checking to see which it is to determine d solution to apply,I personally use aradite(special glue mixture) around the lamp edges to forestall this occurrence but it makes d next bulb changing a Herculean task.An outright lamp changing is a better solution though,a good tokunbo(would do).....act fast cos as time goes by,d lamp in question would get darker due to algae buildup in it

Mine is not the issue of water vapour but the Headlamps are becoming dull, not the bulb but the entire casing is turning slight brownish thus losing its shine. I've washed it several times but no way. What else can I do to make it shine again. Your advice are most Wellcomed.

sammily: Mine is not the issue of water vapour but the Headlamps are becoming dull, not the bulb but the entire casing is turning slight brownish thus losing its shine. I've washed it several times but no way. What else can I do to make it shine again. Your advice are most Wellcomed.

Clean with toothpaste.

Neva blivd myself till I tried

sammily: Mine is not the issue of water vapour but the Headlamps are becoming dull, not the bulb but the entire casing is turning slight brownish thus losing its shine. I've washed it several times but no way. What else can I do to make it shine again. Your advice are most Wellcomed.

What car?

sammily: Mine is not the issue of water vapour but the Headlamps are becoming dull, not the bulb but the entire casing is turning slight brownish thus losing its shine. I've washed it several times but no way. What else can I do to make it shine again. Your advice are most Wellcomed.

Are your headlamp casings glass or plastic?if its plastic then u av to change the lamps cos cars with plastic lamp shade casings usually av this problem cos of our dusty environment mixed with heat

There must be water or water vapour entering through an orifice in the headlamp housing.

Most modern headlamps (including your Corolla's) are manufactured to be air tight so as to prevent dust or moisture from getting in and affecting the glare efficiency of the mirror like reflctor of the headlamp lens.

Some naija panel beaters would use a long self tapping screw to hold the headlamp unit in place after repairing an accident damage. They drill a hole (or several) into the unit and this would allow water or dust into the casing.

A headlamp bulb that is not properly inserted into the housing or loosely fit could also cause this.

Check for loose fiting headlamp bulb/s or completely remove the headlamp unit and examine for any cracks or drillings.

Car-Doctor.

car-doctor:
There must be water or water vapour entering through an orifice in the headlamp housing.

Most modern headlamps (including your Corolla's) are manufactured to be air tight so as to prevent dust or moisture from getting in and affecting the glare efficiency of the mirror like reflctor of the headlamp lens.

Some naija panel beaters would use a long self tapping screw to hold the headlamp unit in place after repairing an accident damage. They drill a hole (or several) into the unit and this would allow water or dust into the casing.

A headlamp bulb that is not properly inserted into the housing or loosely fit could also cause this.

Check for loose fiting headlamp bulb/s or completely remove the headlamp unit and examine for any cracks or drillings.

Car-Doctor.

Thank u Car doctor,
also i want to know when i put my ignition to on postion not starts position d radiation fan starts, pls is it normal. Thank u Car-Doctor.

[quote author=chikasin4][/quote]

I can also second-guess, that the thermostat of your car has been removed + your fan rewired to keep rotating regardless of engine temperature, by our lovely 9ja mechanics to eliminate engine overheating issues !!!!

chikasin4:
Thank u Car doctor,
also i want to know when i put my ignition to on postion not starts position d radiation fan starts, pls is it normal. Thank u,Car-Doctor.

Very bad idea to have your fan on without the engine getting to its operating temperature.
There are so many posts on nairaland that explains the disadvantages.

Try this one:
https://www.nairaland.com/1061845/direct-connection-radiator-fan-harmful


Car-Doctor.

lacasa:


Clean with toothpaste.

Neva blivd myself till I tried

Really?? Never know that, wil give it a try. Thanks

Siena:

What car?

Its Toyota Corolla, 2006 model, American spec

d thermostart is there, but they connect d radiator fan direct to the ignition switch. Dat is how d car came as i buy it as tocumbo. How do i correct it. It is toyota corolla 2003 model le trim. Thank u.