Headlight Moisture

Waspo · 01-13-2015, 03:28 PM

Changed the dipped and main beam bulbs over the weekend (HIDS), now getting Moisture build up in headlight.

What have i done ?

And what do i need to check?

RPITA to change so before taking wheel off and inner wheel arch cover, might be handy to know what i did wrong so i can look for it!

Thanks

acerboo · 01-13-2015, 04:16 PM

I get it all the time but dealer says its within limits

borinous · 01-14-2015, 08:20 AM

mine are very condensated at the moment after all the wet weather we have had but mine have holes cut in the rear main beam covers where the previous owner had fitted aftermarket HID kit. ive replaced with standard bulbs but i guess letting the damp air in is and then the heat from the engine are causing condensation to form on the coldest part...the lense?

Sportplus · 01-14-2015, 11:32 AM

A complete guess..... you've not put the covers back on correctly and you may have a small gap letting damp cold air in which is causing the issue. Edit:- Just noticed Borinous was hinting at this might be the issue

borinous · 01-15-2015, 05:20 AM

i think i recall reading somewhere on here that using a hairdryer to dry them out completely then make sure all the covers go back on and seal up solves the issue.

simmo1985 · 01-15-2015, 06:36 AM

Quote:

Originally Posted by borinous

i think i recall reading somewhere on here that using a hairdryer to dry them out completely then make sure all the covers go back on and seal up solves the issue.

This.... plus stick a couple of sachet of silicone in the back of the covers when you put back on.

creativ101 · 01-15-2015, 10:43 AM

I had moisture in one headlight during the summer. Spent a lot of time with a hairdryer drying it out. Checked the cover and seals and all seemed to be ok. Then it rained a few hours later and the moisture was back.
Turned out to be a hairline crack on the headlight which was letting moisture through and causing the condensation.

But agree, check the covers first as its likely to be loose

Mani59 · 01-15-2015, 11:35 AM

Quote:

Originally Posted by acerboo

I get it all the time but dealer says its within limits

Exactly this. The dealer will only replace them if the car is still within its 3 years manufactures warranty, (it's not covered under AUC).

01-13-2015, 03:28 PM	#1
Waspo Lieutenant Colonel 97 Rep 1,568 Posts Drives: E90 330i M Sport, Silver Join Date: Aug 2014 Location: Southampton, England iTrader: (5)	Headlight Moisture Changed the dipped and main beam bulbs over the weekend (HIDS), now getting Moisture build up in headlight. What have i done ? And what do i need to check? RPITA to change so before taking wheel off and inner wheel arch cover, might be handy to know what i did wrong so i can look for it! Thanks __________________ Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
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01-13-2015, 04:16 PM	#2
acerboo Brigadier General 186 Rep 3,923 Posts Drives: e92 335d lci Join Date: Jul 2008 Location: kent iTrader: (2)	I get it all the time but dealer says its within limits
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01-14-2015, 08:20 AM	#3
borinous Captain 39 Rep 686 Posts Drives: E90 320d SE Join Date: Sep 2014 Location: Essex iTrader: (2)	mine are very condensated at the moment after all the wet weather we have had but mine have holes cut in the rear main beam covers where the previous owner had fitted aftermarket HID kit. ive replaced with standard bulbs but i guess letting the damp air in is and then the heat from the engine are causing condensation to form on the coldest part...the lense?
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01-14-2015, 11:32 AM	#4
Sportplus Lieutenant 19 Rep 569 Posts Drives: 318i M Sport E91 Join Date: Oct 2010 Location: London iTrader: (0)	A complete guess..... you've not put the covers back on correctly and you may have a small gap letting damp cold air in which is causing the issue. Edit:- Just noticed Borinous was hinting at this might be the issue Last edited by Sportplus; 01-14-2015 at 11:39 AM..
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01-15-2015, 05:20 AM	#5
borinous Captain 39 Rep 686 Posts Drives: E90 320d SE Join Date: Sep 2014 Location: Essex iTrader: (2)	i think i recall reading somewhere on here that using a hairdryer to dry them out completely then make sure all the covers go back on and seal up solves the issue.
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01-15-2015, 10:43 AM	#7
creativ101 First Lieutenant 54 Rep 336 Posts Drives: G30 Join Date: Apr 2013 Location: uk iTrader: (2)	I had moisture in one headlight during the summer. Spent a lot of time with a hairdryer drying it out. Checked the cover and seals and all seemed to be ok. Then it rained a few hours later and the moisture was back. Turned out to be a hairline crack on the headlight which was letting moisture through and causing the condensation. But agree, check the covers first as its likely to be loose
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