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      09-11-2013, 03:04 PM   #7
tracer bullet
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Drives: '11 135i , '15 X3 35i
Join Date: May 2011
Location: Saint Paul, MN

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As for sealing it, before you spend any money I would:

1) Open the hood, pop the cover off the back of the headlight and then aim a fan at it overnight or even several nights if possible, to be sure that you have absolutely completely 100% dried it out and there is no water left inside that will turn to moisture later on.
2) Be very careful putting the cover back on and be certain that it is sealed up, that there is a good gasket on the cover, that there are no wires in the way of it, that there are no angel eye parts pushing on it, and so on. Be completely positive that it's on correctly.

Then let it go for a while and see if the condensation stops. You may in fact have a damaged headlight assembly letting in moisture, but it's really much more likely that a rear cover was taken off and not put back on correctly.

The adaptive thing is a different story, it may be too late to save it. But do the other stuff before you replace the whole headlight!
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