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Model specific boards => Golf mk6 => Topic started by: candywhite12 on 16 June 2013, 13:23

Title: bi-xenon moisture
Post by: candywhite12 on 16 June 2013, 13:23
for a while now, my driver-side bi-xenon looks to have gathered moisture on the inside of the glass.  Doesn't seem to go away ever.  Also the same bi-xenon bulb looks to have been covered with dirt or something and in any case doesn't look all that shiny and 'glassy'.  Anyways, I had the passenger-side headlamp unit changed so there's noticeable difference between the new and the old one, both on the inside of the glass and on the xenon lamp.

Help anyone??
Title: Re: bi-xenon moisture
Post by: dubber36 on 17 June 2013, 14:09
Put a couple of silica gel packs in the lamps, that will suck up the moisture. It might take a few goes, drying the bags out time, but should do the trick.
Title: Re: bi-xenon moisture
Post by: candywhite12 on 17 June 2013, 14:35
Put a couple of silica gel packs in the lamps, that will suck up the moisture. It might take a few goes, drying the bags out time, but should do the trick.

use them open or closed?  Also what do you mean 'in the lamps'? I can't really seem to have any access to the inside of the unit, i can only remove the bulb of the xenon, not the actual front cover of the xenon light.
Title: Re: bi-xenon moisture
Post by: Jimble on 17 June 2013, 15:01
Put a couple of silica gel packs in the lamps, that will suck up the moisture. It might take a few goes, drying the bags out time, but should do the trick.

use them open or closed?  Also what do you mean 'in the lamps'? I can't really seem to have any access to the inside of the unit, i can only remove the bulb of the xenon, not the actual front cover of the xenon light.

There should be a cap on the back of the light unit in the engine bay, pop it off and put a couple of bags inside.
Title: Re: bi-xenon moisture
Post by: candywhite12 on 17 June 2013, 16:06
Put a couple of silica gel packs in the lamps, that will suck up the moisture. It might take a few goes, drying the bags out time, but should do the trick.

use them open or closed?  Also what do you mean 'in the lamps'? I can't really seem to have any access to the inside of the unit, i can only remove the bulb of the xenon, not the actual front cover of the xenon light.

There should be a cap on the back of the light unit in the engine bay, pop it off and put a couple of bags inside.


hmmm, would i be able to remove them later then??
Title: Re: bi-xenon moisture
Post by: Jimble on 17 June 2013, 17:45
Why wouldn't you? :huh:
Title: Re: bi-xenon moisture
Post by: dubber36 on 17 June 2013, 18:05
Just wedge them in against something to stop them from moving around and they'll be fine. Or stick them to the back of the cap that you would remove to access the indicator bulb. (obviously don't tape over them so that the moisture cant attract to them)
Title: Re: bi-xenon moisture
Post by: candywhite12 on 17 June 2013, 20:07
Just wedge them in against something to stop them from moving around and they'll be fine. Or stick them to the back of the cap that you would remove to access the indicator bulb. (obviously don't tape over them so that the moisture cant attract to them)

right then, i;ll give this a try.  any help with cleaning the bulb?  i am pretty sure it cannot be easily removed from the unit
Title: Re: bi-xenon moisture
Post by: dubber36 on 18 June 2013, 08:06
By the "bulb", I guess you mean the projector lens? If it's dirty, there is likely to be a hole in the light unit that is letting dust as well as moisture in. Perhaps one of the rear covers isn't secure, or a drain tube missing? The only way to check this is to remove the lamp. To clean it, you'll need to dismantle the lamp to remove the xenon unit. It is doable with care, but you may prefer to take it to the dealers and try them for a replacement light unit.
Title: Re: bi-xenon moisture
Post by: candywhite12 on 18 June 2013, 11:35
By the "bulb", I guess you mean the projector lens? If it's dirty, there is likely to be a hole in the light unit that is letting dust as well as moisture in. Perhaps one of the rear covers isn't secure, or a drain tube missing? The only way to check this is to remove the lamp. To clean it, you'll need to dismantle the lamp to remove the xenon unit. It is doable with care, but you may prefer to take it to the dealers and try them for a replacement light unit.

yes, i do mean the projector lens.  Dealers said they can't remove it and its out of warranty anyway. They only said it looks 'dirty' because of the constant use - it's a 3.5 years old car.  I;ll try to dismantle it somehow, do you happen to know whether that would jeopardise how the xenons are balanced?
Title: Re: bi-xenon moisture
Post by: dubber36 on 18 June 2013, 11:53
I had to take the one from my old Passat apart to change the ballast unit. When the lights are turned off, or have no power to them, they "rest" in a default position. When you put it back together it will still be in that same position, so when you power them up again, they will reconfigure themselves for auto adjustment.