How do you reseal headlights?

[slugg]

I've run into the not uncommon problem of condensation inside my headlight. From searching and reading, people have reported that resealing the headlights fixes this issue. The only problem is that nobody has actually explained how to do it...

Now this may seem trivial to you, but as someone who only recently started getting into cars and knows nothing, this is not trivial to me. I have no idea what's involved with resealing the headlights. What I don't understand is that my old BMW 330i never had sealed lights; they came right apart... but they never had any condensation. Hm.

Anyway... Thanks in advance!

 

[Minimazda]

You can buy headlight sealant. Literally google it and find it from a good site to buy it. I suggest TheRetroFitSource.com for 15$ you will get enough of a roll of sealant to do more than 2 headlights. You could also use RTV black sealant. It is very simple.
You can do it one of 2 ways:
Either the really lazy and hope you get it right way by just taking the headlight off the car and sealing around the entire seam...
OR
Take the headlight off the car then take it APART. Scrape out all the old sealant then put the new sealant you bought in the same seam.

I prefer the second option but some don't feel comfortable taking headlights apart or don't have the ability so it is up to you.
If you choose the second option I can tell you exactly how to take apart a headlight.