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Old 17th July 2017, 12:16 PM   #1
Martyn
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Default Don't ignore condensation in your headlights!

Otherwise you'll end up with a Xenon ballast full of water!









The ballast was absolutely full of water, no wonder I had 'bulb' failure. New Xenon ballast required!

What a stupid design
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Old 17th July 2017, 01:07 PM   #2
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"Designed to fail" comes to mind.
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Old 17th July 2017, 03:03 PM   #3
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I had both headlights replaced under warranty. Absolute crap Design!

Normally the adaptive headlights are worse for some reason.
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Old 17th July 2017, 03:54 PM   #4
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I had this exact problem a couple of weeks ago. Not only is the design rubbish but getting at the headlight is an utter pain in the ass!

Weatherproof silicone seal on everything and replacement ballast and thankfully it has been fine ever since. Condensation has finally abated.
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Old 17th July 2017, 07:40 PM   #5
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Not good! Your E46 rear wheel looks mean
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Old 8th August 2017, 11:21 AM   #6
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While you have lights out, remove control module (for adaptive lights) under the light and seal with silicon too.
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Old 7th January 2018, 12:32 PM   #7
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My god I’ve had this issue 3 times now, I’ve just killed another ballast despite using the hairdryer every time I’ve noticed condensation.

The last ballasts I replaced I even trying wrapping them and all connecting wires, this still didn’t work.

I’ve not bothered taking the car apart again yet to investigate, hate pissing around in the freezing cold.

Can the ballast be filled with a non conducting waterproofing gel or something?
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Old 7th January 2018, 12:38 PM   #8
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I have changed loads on E9x cars,seem worse than E46's for this fault.

When rebuilding i use a non conductive silicone grease to try and fend off moisture
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Old 7th January 2018, 03:55 PM   #9
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Quote:
Originally Posted by JGFM3 View Post
My god Iíve had this issue 3 times now, Iíve just killed another ballast despite using the hairdryer every time Iíve noticed condensation.

The last ballasts I replaced I even trying wrapping them and all connecting wires, this still didnít work.

Iíve not bothered taking the car apart again yet to investigate, hate pissing around in the freezing cold.

Can the ballast be filled with a non conducting waterproofing gel or something?
Ive used this stuff on our company E61 535d , they keep the electronics for the central locking or something like that ( i forget exactly, been a couple of years now ) in the rear spoiler , They suffer condensation and water ingress so dried it up and potted the electronics in this stuff.
No bother since .


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Old 8th January 2018, 07:45 AM   #10
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Quote:
Originally Posted by 335DEE View Post
Ive used this stuff on our company E61 535d , they keep the electronics for the central locking or something like that ( i forget exactly, been a couple of years now ) in the rear spoiler , They suffer condensation and water ingress so dried it up and potted the electronics in this stuff.
No bother since .


Thank you for that, that's the kind of product I was thinking of using to coat the inside of my new ballast, I do wonder though about heat build up, I know the ballast get hot.
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Old 8th January 2018, 09:10 AM   #11
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I had mine done under warranty and it had ****ed the light control module or something. They tried to charge me £1800 iirc. They said the headlights are covered and the electrics are covered but seals arenít covered and any damage caused as a result of another item failing isnt covered. I really hate having to fight with warranty:insurance companies about this type of ****. Makes me dispair with the world.
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Old 8th January 2018, 09:24 AM   #12
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Quote:
Originally Posted by JGFM3 View Post
Thank you for that, that's the kind of product I was thinking of using to coat the inside of my new ballast, I do wonder though about heat build up, I know the ballast get hot.
this guy in the vid suggests it's good for 200 DegC , short bursts at 250

doubt the ballast will get anywhere near that
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Old 8th January 2018, 12:59 PM   #13
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If it gets that hot it would get rid of any condensation by itself
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