Because they aren't sealed properly.

 

+1 on a seal failure.

 

Because it's an aftermarket replica part

J/K. Sort of.

+1 on a seal failure.

View attachment 250393

LMAO! I canot think of a more appropriate pic.

 

the rubber seal that site behind the headlight or the actual lense ?

 

It could be either or both. I would start by removing the assembly, stripping it down and baking it for 15 min or so at al least 120°C to dry it out. Reassemble the lamp and apply a light (weight) grease (dielectric or petroleum jelly) to all of the bulb seals. remount the assembly and watch for moisture intrusion.

 

It could be either or both. I would start by removing the assembly, stripping it down and baking it for 15 min or so at al least 248°F to dry it out. Reassemble the lamp and apply a light (weight) grease (dielectric or petroleum jelly) to all of the bulb seals. remount the assembly and watch for moisture intrusion.

Fixed. This is 'Merica

In all reality, do what AGM5 said, I had to do this on my M.

 

If memory serves me right the lenses should have 6 clips, 3 on the bottom of the headlight, 2 on the top & 1 close to the indicator, if you can assemble the lense covers with ease then the seals are shot, that was my experience




Thanks
Clayton

 

Good you got the fix.

I just want to note that a main seal could cause condensation, but another cause (just not in your case) with headlights is the vent holes are blocked and not properly equalizing. Many do not realize that you can not have a 100% sealed headlamp or else this could happen. The vent holes typically have rubber tubes or elbows on them that equalize internal to external humidity and pressure which reduce risk of condensation.

 

My set is on the fedex truck, eta is Friday. Hopefully wont have this issue.

 

Ive had mine in through some really good storms and not a single spec of moisture has been seen.

 

Quick...someone convert -40 F to centigrade....

 

Quick...someone convert -40 F to centigrade....

-40°C :applause:

 

Just a bad seal, which has been addressed by the others.

Not for the life of me I can understand why eveyone will pay 800 for these rebranded Chinese made copies that are being made at the same factories that the ebay versions are made at.

The only differences are the final branding (aka name on box) and the huge markup.

 

So what aftermarket headlights with clear corners do you recommend? The guys at Umnitza claim these have much better light output due to newer/better technology. I have always thought my OEM headlights kinda sucked, at least the low beams.

 

When it's mentioned the "seal", is it referring to the goop that brings/maintains the lens and the housing together? I've taken mine apart twice and I don't recall a specific rubber seal (like a gasket), just a lot of sticky black stuff that holds them together.

 

There is the eurthane between the lens and bezel, the black rubber seals behind the high and main beam lights and o-rings on the side and turn lamps. Failure of any one ofthese will permit moisture intrusion.