Headlight condensation

Don Winter · Dec 11th, 2017, 10:26

Hi
I have really bad (100%) condensation in the nearside headlight.Offside is fine and dry.Guess maybe a leak?Have tried the hole drilling in the cap and if anything its now worse.Any tips/ideas please? Thank you.

Simon Jones · Dec 11th, 2017, 12:44

What headlights have you got? The pre-facelift ones have a small Gortex panel in the cap on the back to allow the unit to breathe & reduce condensation.

oragex · Dec 11th, 2017, 13:03

Where the glass meets the plastic housing, there is a thin long plastic cover. Remove it, then use some outdoor rated silicon to cover the seam from one end to the other as far as you can reach. There are also a few tabs, try to toss them to spread silicone underneath. Only at the top of the headlight needs be done.

jnmonaghan · Dec 12th, 2017, 22:21

I also have condensation in the near side headlight. My temporary solution is to remove the lamp cover in the engine bay, until such times as I remove the headlight in order to replace the Hid D2R bulb. This will, I hope, give me the opportunity to clear any drain/vent holes, that I believe exist.-- 2003 D5 V70

Jude

GreenBrick · Dec 13th, 2017, 12:41

I took the rear cover off and used a heat gun on the glass, lightly, to dry it out. Did this a couple of times and it seems to have done the trick.

boggymarsh · Dec 13th, 2017, 22:14

An 8mm hole drilled into each of the Black removable caps has worked on my previous V70 and my current XC70. If it is heavily condensated then you need to ensure that each headlight unit is dried out completely but once done it should remain clear once vented.

Dec 11th, 2017, 10:26	#1
Don Winter Member Last Online: Mar 11th, 2018 14:34 Join Date: May 2009 Location: downham market	Headlight condensation Hi I have really bad (100%) condensation in the nearside headlight.Offside is fine and dry.Guess maybe a leak?Have tried the hole drilling in the cap and if anything its now worse.Any tips/ideas please? Thank you.

Dec 11th, 2017, 12:44	#2
Simon Jones Premier Member Last Online: Jan 15th, 2022 11:23 Join Date: Feb 2009 Location: Salisbury (ish)	What headlights have you got? The pre-facelift ones have a small Gortex panel in the cap on the back to allow the unit to breathe & reduce condensation. __________________ 2008 XC70 3.2 SE Lux with LPG conversion - current 2005 XC70 D5 SE Lux - sold 2004 XC70 D5 SE Lux - written off by another XC70 2001 V70 D5 - sold 2000 V70 Classic 2.4 - sold

Dec 11th, 2017, 13:03	#3
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	Where the glass meets the plastic housing, there is a thin long plastic cover. Remove it, then use some outdoor rated silicon to cover the seam from one end to the other as far as you can reach. There are also a few tabs, try to toss them to spread silicone underneath. Only at the top of the headlight needs be done. __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Dec 13th, 2017, 12:41	#5
GreenBrick SilverBrick Lives! Last Online: Apr 5th, 2024 19:06 Join Date: Apr 2015 Location: Poynton, Cheshire	I took the rear cover off and used a heat gun on the glass, lightly, to dry it out. Did this a couple of times and it seems to have done the trick. __________________ Jeep ZJ, 960, Past:- Mazda2, Jumbuck, V70 (2002), 945 (1995), Hyundai Coupe, Golf Mk4, Previa, Carina, 2 x Corsa, 4 x Astra, 944 16v (1991), Espace, Escort, Audi 80, Renault 21 Savanna, Polo, Mini Clubman/Pickup, Standard 8, Capri, Maxi.

Dec 12th, 2017, 22:21	#4
jnmonaghan Senior Member Last Online: Apr 25th, 2024 14:41 Join Date: Mar 2011 Location: Belfast	I also have condensation in the near side headlight. My temporary solution is to remove the lamp cover in the engine bay, until such times as I remove the headlight in order to replace the Hid D2R bulb. This will, I hope, give me the opportunity to clear any drain/vent holes, that I believe exist.-- 2003 D5 V70 Jude

Dec 13th, 2017, 22:14	#6
boggymarsh XC70 2008 D5 SE Last Online: Mar 10th, 2024 17:38 Join Date: Jul 2007 Location: Kent	An 8mm hole drilled into each of the Black removable caps has worked on my previous V70 and my current XC70. If it is heavily condensated then you need to ensure that each headlight unit is dried out completely but once done it should remain clear once vented.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)