Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: webby23 on 24 August 2010, 13:49:30

Title: Misted up headlight
Post by: webby23 on 24 August 2010, 13:49:30
Have just noticed misting in my nearside headlight

Any idea pls what causes this and how i can cure it??

Car is facelift MV6 with Xenon lights

Martyn

 :y :y
Title: Re: Misted up headlight
Post by: Welung666 on 24 August 2010, 13:55:34
Has the headlight ever been apart? If it has it could be that the sealant hasn't properly resealed and allowed water in. Check the rubber bungs on the rear of the headlight as well :y
Title: Re: Misted up headlight
Post by: webby23 on 24 August 2010, 13:56:57
Not been apart to my knowledge

Will check bung mate thanks

 :y
Title: Re: Misted up headlight
Post by: Welung666 on 24 August 2010, 14:01:40
They only ever mist up when water gets in. The headlight heats said water so it evaporates and settles on the fastest cooling part (the lens) as condensation. Simples really ;)
Title: Re: Misted up headlight
Post by: webby23 on 24 August 2010, 14:02:41
Lee, whats the best way of getting rid of it mate?

Cheers
 :)
Title: Re: Misted up headlight
Post by: Welung666 on 24 August 2010, 14:04:08
Get it completely dry inside. A couple of hours in a hot airing cupboard with the bungs off should do it :y
Title: Re: Misted up headlight
Post by: Matchless on 24 August 2010, 14:06:19
Pull off both rubber bungs then put a hirdryer into one of the holes for a while. You need to re-seal it though, the condensation leads to mould or algae on the inside of the lens which can be an MoT fail if it gets bad.
Title: Re: Misted up headlight
Post by: webby23 on 24 August 2010, 14:07:24
Quote
Get it completely dry inside. A couple of hours in a hot airing cupboard with the bungs off should do it :y

Not good at diy stuff, if i used the lights alot and checked the bung would that help or does it really need to come off mate?

Thanks for your advice Lee

 :y
Title: Re: Misted up headlight
Post by: webby23 on 24 August 2010, 14:08:28
Quote
Pull off both rubber bungs then put a hirdryer into one of the holes for a while. You need to re-seal it though, the condensation leads to mould or algae on the inside of the lens which can be an MoT fail if it gets bad.


 :y
Title: Re: Misted up headlight
Post by: Welung666 on 24 August 2010, 14:14:50
Quote
Quote
Pull off both rubber bungs then put a hirdryer into one of the holes for a while. You need to re-seal it though, the condensation leads to mould or algae on the inside of the lens which can be an MoT fail if it gets bad.


 :y

That was going to be suggestion #2 ;)
Title: Re: Misted up headlight
Post by: webby23 on 24 August 2010, 14:16:25
Quote
Quote
Quote
Pull off both rubber bungs then put a hirdryer into one of the holes for a while. You need to re-seal it though, the condensation leads to mould or algae on the inside of the lens which can be an MoT fail if it gets bad.


 :y

That was going to be suggestion #2 ;)

By "resealing" it do we just mean refitting the bungs or do i need a sealant in there?

Thanks

 :y
Title: Re: Misted up headlight
Post by: Welung666 on 24 August 2010, 14:19:47
Depends.... If a bung is missing or split then that's how the water got it. If the bungs are all fine then the headlight needs to come out and a new bead of sealant put all the way round the joint where the black and clear parts meet.
Title: Re: Misted up headlight
Post by: webby23 on 24 August 2010, 14:27:08
Cheers

 :y
Title: Re: Misted up headlight
Post by: skyblue on 02 October 2010, 17:47:07
Quote
Depends.... If a bung is missing or split then that's how the water got it. If the bungs are all fine then the headlight needs to come out and a new bead of sealant put all the way round the joint where the black and clear parts meet.
This doesnt mean that you seperate them and then put the sealant around does it...... as Im reading it its just put a decant bead of sealant around  the outside of the light itself makeing sure you cover the joints :-/
Title: Re: Misted up headlight
Post by: markrl on 03 October 2010, 13:55:00
 The test that the Vauxhall recommends is to turn on the lights for 20 minutes. If the misting clears in that time then the headlight is considered OK. If it has still not cleared after that run time the unit is considered defective. TIS points out that the open lamp design will inevitably lead to some moisture ingress which is far more noticeable on Xenons due to the clear lens

The lights on my car do very occasional after very heavy rain or washing the car have some very light misting which seems to clear quite quickly. As this seems to effect many cars I have never troubled myself with it.   
Title: Re: Misted up headlight
Post by: feeutfo on 03 October 2010, 15:25:36
I have a new hid light on the pass side, it mists up when I use the auto car wash, so it was replaced, 2nd new one exactly the same. Old one never mists up....? :-/