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Old 4th January 2018, 11:21 AM   #1
dannyscott
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Default headlight condensation-help please!!

i know theres a lot of threads on here about headlight condensation and ive pretty much read them all.
ive used the hairdryer through the top cover trick and it just comes back after a while.
Are there any companies out there that i can just send the headlamps too and have them resealed?As i dont want to risk damaging them.

Please help as the missus is getting the right ump with me keep nicking her hair dryer !!
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Old 4th January 2018, 12:13 PM   #2
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Personally, I've tried re-sealing with silicone, replacing the hatch at the back and blow drying as you've described.

Nothing seems to solve the issue entirely. However what I can say that sometimes helps is to take off the hatch at the top after you have been on a long drive and close the bonnet afterwards. It seems to clear up for a little while after having done this.

Replacing the headlight entirely seems the only permanent solution.
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Old 4th January 2018, 12:45 PM   #3
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I bought some silica sachets and put them in the top last week, greased the seals of the hatches and it seems to have cleared completely.

Even after this mornings journey through the pissing rain they're still clear.

Fingers crossed it stays like this!
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Old 4th January 2018, 04:57 PM   #4
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Silica sachets is the secret
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Old 4th January 2018, 06:24 PM   #5
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Quote:
Originally Posted by WinFreak View Post
I bought some silica sachets and put them in the top last week, greased the seals of the hatches and it seems to have cleared completely.

Even after this mornings journey through the pissing rain they're still clear.

Fingers crossed it stays like this!
You cheeky bugger - thats a great idea!

Saboor
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Old 4th January 2018, 06:52 PM   #6
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Anyone got a link to these silica sachets?also what size are they?
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Old 4th January 2018, 07:24 PM   #7
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Originally Posted by dannyscott View Post
Anyone got a link to these silica sachets?also what size are they?
Any good. ??

https://www.amazon.co.uk/Silica-Gel-.../dp/B004XX2W5G
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Old 4th January 2018, 09:08 PM   #8
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I'll concur with Mr Reeves on the popping the hatch on a dry day being most effective, also tried the hair drier approach. This is the LHS at its worst, and that is a new headlight less than 6 months old.

I also bought some of these and they also helped. I gaffer taped six of them inside and they turned from blue to pink over a few days. I suspect it helped, i'll need to buy more.

I tried some ideas to turn them back to blue. Microwave - seemed to work ok. radiator a bit slow. 30 minutes in a moderate oven however turns them into a black stinky mess ...
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Old 5th January 2018, 04:13 AM   #9
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What I do is open the top cap and let it run with headlights on for water to dissipate naturally. Hairdryer could damage internals so I wouldn’t recommend it.
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Old 5th January 2018, 07:17 AM   #10
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That's all I did, left it open for a day while the car was sat in the sun and all drops and condensation were gone. Then stuck the silica sachets in and it's not come back yet whereas normally a damp day would be enough to start it.

I bought these:
https://www.ebay.co.uk/itm/282020156866

Stuck 2 of them together so they wouldn't drop right down the bottom of the headlight and put them away from anything that gets warm so the plastic doesn't melt.
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Old 5th January 2018, 07:36 AM   #11
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Iíve never had this on any of my E9Xs (4 x M3s and 1 x E91). What/where is the source of the fault? A bad seal somewhere? It must be a faulty component/seal as some cars seem to get it and others donít.
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Old 5th January 2018, 07:47 AM   #12
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I thought exactly this until a few months ago, mine were always clean and clear inside and all of a sudden they started to fog up in bad weather.

The rubbers in the top lids were quite dry, couldn't be bothered to open the arch liners up to check the other ones though...
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Old 12th January 2018, 05:02 PM   #13
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Default Update....

ok so i sorted the condensation problem with the silica gel pouches

the dipped beam bulb went-possibly caused by the condensation.ordered new bulbs ds1s
fitted them and the dipped beam is still not working ,anyone know what fuse numbers to check or any other possible causes??.

the main beam and side lights and indicator are all working fine also.
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Old 12th January 2018, 05:08 PM   #14
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Swap the balast from the other side to check if that's working. When mine went the bulb and the balast went.
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Old 12th January 2018, 06:50 PM   #15
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Quote:
Originally Posted by WinFreak View Post
That's all I did, left it open for a day while the car was sat in the sun and all drops and condensation were gone. Then stuck the silica sachets in and it's not come back yet whereas normally a damp day would be enough to start it.

I bought these:
https://www.ebay.co.uk/itm/282020156866

Stuck 2 of them together so they wouldn't drop right down the bottom of the headlight and put them away from anything that gets warm so the plastic doesn't melt.
Interesting. Is it ok to leave in the light then? No risk of them melting etc? Where is best to put them so they donít get hot etc?

Cheers!
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Old 12th January 2018, 06:59 PM   #16
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Quote:
Originally Posted by Martyn View Post
Swap the balast from the other side to check if that's working. When mine went the bulb and the balast went.
Been there too, 100% the ballast at fault. The bulbs usually go a funny colour before they fail.

Should have swapped the bulbs first to confirm. You live and learn.
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Old 12th January 2018, 07:02 PM   #17
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Quote:
Originally Posted by Wozza View Post
Interesting. Is it ok to leave in the light then? No risk of them melting etc? Where is best to put them so they donít get hot etc?

Cheers!
the ones i boughtoff of ebay are in
a little cage i litterally popped the top cover off and placed them in there ,their too big to fall through.
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Old 12th January 2018, 07:03 PM   #18
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Default ballast

Quote:
Originally Posted by Martyn View Post
Swap the balast from the other side to check if that's working. When mine went the bulb and the balast went.

can you get to the ballast with out removing the bumper?if not has anyone got a link to front bumper removal?
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Old 12th January 2018, 08:24 PM   #19
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Quote:
Originally Posted by dannyscott View Post
can you get to the ballast with out removing the bumper?if not has anyone got a link to front bumper removal?
The ballast is on the bottom of the headlight. Bumper off looks by far the easiest method, and then you can inspect the headlights and seal them etc. To get even close to it any other way involves certainly on the RHS moving what looks like an oil cooler.

Youtube ... https://www.youtube.com/watch?v=IqILEOs1wpE

If the weather is reasonable that's what i'll be doing this weekend...
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Old 12th January 2018, 08:28 PM   #20
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Nope, bumper has to come off in order to get the headlight off. It's not too bad really.
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