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How2 Repair Your Leaking Headlights


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#1 danuk

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Posted 22 October 2006 - 03:42 PM

Ive had my car around a couple of months now and bought it with a leaking headlight, not so much a problem in itself but the water leaves a white residue on the lamp itself so it really needed sorting.

I take no responsibility for any damage or injury caused by following these instructions. Do so at your own risk.

The first thing is to remove the headlamp, just one bolt holds it in accessed from behind and the lamps out
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You can see the crap in the bottom of the light from the water
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Looking at the back of the light you can see where someone has tried to seal it before, plus the gap which is letting in all the water.
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Now comes the removal of the plastic cover. Before you start removing the cover note how far it protrudes
past the edge of the lamp all the way round as mounting it to far one way or the other you will end up with a gap between the headlight and the ar bodywork.

The way I removed the plastic cover was to get a long sharp knife, insert it in the gap between the lamp and the cover and carefully slide it along to remove the seal. this can be quite difficult to do. you will find that as the sealant comes away it will make a cracking sound, It almost gave me a heart atttack the first time it happened at I thought I had cracked the plastic.
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Once removed give the lamp a clean, you will also notice in the photo above that the black painted edge of the cover has come away in places leaving it see through. I used Black gloss paint (As thats all I had to hand) and a small brush to repaint the black edge back on.

Once the paint is dry you then need to reseal the cover back onto the lamp, For this I used black instant gasket. from somewhere like halfords. It comes in a small squeezy tube. Only squeeze a small thin continuous bead all the way round the lamp, try to keep the bead to the outer edge of the lamp otherwise the gasket may enter the lamp when you push on the cover (if you know what i mean)
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Once dry which will only be a couple of hours you can refit the lamp. which should now be leak free.
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Dan.

Edited by danuk, 22 October 2006 - 03:44 PM.


#2 Muncher

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Posted 22 October 2006 - 04:36 PM

I thoroughly sealed both my headlights and STILL get condensation :(

#3 danuk

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Posted 22 October 2006 - 04:39 PM

Have you tried leaving one of the rubber gommets off at the bottom of the light, that will let moisture escape when the light warms up.

#4 Kernow220

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Posted 22 October 2006 - 05:30 PM

Is it because i'm on an Apple or are the pics really distorted… interested in seeing them as like most people mine leak too.

#5 danuk

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Posted 22 October 2006 - 05:47 PM

Is it because i'm on an Apple or are the pics really distorted… interested in seeing them as like most people mine leak too.


There is one slightly blurley photo as my camera focused on a towel behind the light rather than the light, lol, all the other photos are ok though. Try using a computer rather than an apple to surf the net :P

There was a light going on ebay which I was going to bid on incase I broke this one, Aslong as you take your time and dont force or bend the cover trying to remove it it should come off ok, it took me maybe 45 min to remove it as i was being carefull

Edited by danuk, 22 October 2006 - 05:48 PM.


#6 Alex L

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Posted 22 October 2006 - 06:40 PM

Good write up, this is something that I will attempt when the weather clears. After what seemed like a long week I collected my VX yesterday, got home to notice there is a spider and web in the offside headlight and some condensation in the nearside. The car is under warranty but seems like a relatively easy job to attempt myself.

#7 jimbob

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Posted 22 October 2006 - 06:51 PM

Snap. Got a blanched white spider in one of my rears. Am leaving him there though 'cos he's my frien :huh: d

#8 bigp2

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Posted 22 October 2006 - 08:04 PM

Is it because i'm on an Apple or are the pics really distorted… interested in seeing them as like most people mine leak too.

Looks fine to me on my Mac. I'm using firefox, what browser are you using?

Phil

#9 swerve

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Posted 22 October 2006 - 08:23 PM

I've had a problem with my rears recently (after 4 years with the car) I can only imagine that the garage who recently had it left the boot open and the rain got in....after I stripped the carpet and rubber heat shield out, and have driven it for 100 or so miles problem is solved ;)

#10 jakepeg

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Posted 22 October 2006 - 08:26 PM

It does not surprise that you still get condensation in the head lamp unit post sealing, as if you think about it there is never a vacuum in the unit and water + vapour will get past the rubber plugs that "seal" the holes that the bulbs go through. Then have lights on -v.hot. and outside cold, when air in unit cools you will have water vapour coming out of gaseos phase and back to liquid i.e condensation. Crap to look at and very irritating we all know,but I think this design of headlap unit will always suffer this. Just remember that if tou drive fast enough no one will notice! :D




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