Condensation in my headlights?

So i bought these blacked out headlights off ebay and just after a week on installing them already one of them has condensation in them. What can i do to fix this problem is their anyway to seal the casing of the headlight? Thanks

 

^ i had the same issue with mine. I drilled a couple 1/8 " holes around the sides to let all the water & moisture drain out. It was dry today so i resealed it with black roofing caulk. I'll know probally in the next couple days if it worked or not.

 

you can put those ebay headlight in the oven at 350 for 5 minutes...remove them pull the headlights apart and remove all the original sealant...once that's done re caulk new sealant and put the headlights back together...you can put another layer of seal on the outside beeding it all the way around the headlight...bake them again for 5 minutes and that should clear everything up completely...

also check the rubber seal that hold the bulb to the headlights...sometimes that comes loose or these is an opening because it doesn't seal properly...I know of another member that drilled a small hole in the behind the turn signal amber cover...that way any moisture will be let out through the hole...

good luck on the repairs and keep us posted on if or if not this method worked for you...

 

you dont even need to put them in the oven... just go over all the seals with silicon II

 

^ thats what i did. Just slop it over the original seals...I had my wiring all hooked up and there was no way in hell was i going to cut through all my nicely done connections to fix the condensation. I will say though fix it ASAP i had another cheap pair of ebay lights that i didnt fix for a couple weeks and when i took them out i saw 2in of sitting water on the bottom - rotted away some of the chrome reflector.

 

Don't use the home silicon. Use the AUTOMOTIVE silicon by Permatex.

http://www.permatex.com/products/Au...matex_Clear_RTV_Silicone_Adhesive_Sealant.htm

On a side note I did the BHLM and reused the OEM sealant. First thing I did was assemble the lights the best I could without any heat. I then put them in the oven at 315 degrees for 10 minutes, pulled out the light, pushed everything together good and tight. I am two weeks with the mod complete and just had a bunch of humid days and no moisture so far in the lights.

 

3 years down, still no fog

 

you dont even know things stuck in your headlight, a while back in my parents 750li there were bugs like bees and fies inside the headlights, so they took to the dealer and they said that it was imposible for them to get in there, and the lights were leds, so they said you were never sposto have to replace them, so they dont come out without major modification, so like three years later the bugs are still sitting in the headlights a mystery to all

 

i used roofing silicone so i know the stuff is really hardy.

 

You guys are great thanks for the help! I guess I know what im doing this weekend. And i just did my room so i have plenty of leftover silicon. Ill update you guys when im done.

 

have had mine for about a month. have had some temp swings, rain and such in that time... so far no condensation.

 

okay so i just sealed up my headlights with some silicon and it looks good. but im not even sure that was the problems because where the bulb goes in theirs 2 little holes for air to flow in and out of the headlight. But the only thing that confuses me is that the other one is like that also and theirs no condensation in that head light. Should i seal up those little holes in the back of the bulb?

 

^nope. The culprit in condensation is almost always the seal around the headlight lens. When it rains or drops in temperature water/rain/dew will condense around that edge and drip in.

 

Alright thanks

 

so i just finished and within 10 minutes of re installing my headlight that i just sealed up there is already condensation in the headlight. What can i do

 

did you pull the headlight out ? - you didnt let it dry enough. If you didnt take out the headlight completely i can guarantee you have sitting water in the headlight. You'll have to pull it out and drill a small hole in the bottom and let it drain/dry out. If there is no water than pull all the bulbs out and put it in a warm location like inside by the sun and let it dry out

 

i pulled out the head light took out the bulbs and waited for the head light to dry out completely. Than i caulked all around the head light and waited over night for it to dry. After i put it back in, in the morning condensation built up in the headlight within 5 minutes.

 

I just had my truck worked on (some ass @ home depot decided to back into me and leave)..........they had to put 1 new headlight assembly in from toyota............that weekend I washed my truck and bam......moisture in the new headlight.....the body shop who did my work ordered me a new headlight assembly and changed it out no questions asked...........try what the other are suggesting when sealing it w/some sealant or have you tried contacting the person you purchased them from?

 

You shouldn't have to drill any holes in the headlight. The headlights already have built in "breathers". One at the top and one at the bottem. They are capped with a plastic cap (white one and a dark grey one). I wouldn't be drilling any kind of "weep" holes in my headlights. I did this mod and I am 4 weeks out and no condensation issues. All I did was assemble the lights the best I could by hand, re-heat the lights in the oven and re-assemble the rest of the way. I have had ZERO condensation issues. If you bought the lights frm someone on Ebay then I am not sure what the solution might be.

 

I have this same problem and just ran across this thread. I got a fish tank in my passenger side headlight... a little more than condensation. I drilled a small hole in the bottom front of the headlight to drain the water. Kinda iced up in there now. Very cold out. I had the hair dryer out trying to dry out but didn't work the best. I think Ill drive with my brights on to try to heat it up and dry it out. So I looked all around the seal. Looks ok, but the top area looks skeptical (Maybe older cracked sealant.), but I can't confirm this is where my problem is. Just put a coat of Permax silicone on there for good measure. Ill hit it again with another coat later. Checked all the bulbs to make sure they were seated alright. They looked fine.

Ill see what happens from here. Hope all dries up and then I can seal the little hole I drilled.

This thread was helpful... Thanks all, even though it was from 2009. Still good info!