GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Headlight Lenses

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Old 01-25-15, 08:40 PM
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D3V3LOP3R
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Default Headlight Lenses

Hey guys,
my Driver Side headlight lenses have some yellowing on them, but its on the inside. Anybody know if someone sells just the lenses, or should I just remove the lenses and clean them up myself? Thanks
Old 01-25-15, 08:44 PM
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1sWt2GS
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Removing the lens and cleaning it yourself is the best way if you wanna save some money. I dont think a little yellowing on headlights justifies buying a pair of brand new headlights.
Old 01-25-15, 09:16 PM
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monkey92
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if you decide to take the lens apart and sand and buff. i heard from someone that it would be a good idea to apply a clear coat on the inside of the lens because sanding will take away whats left of the UV protectant coat inside the lens, and it will yellow again, only this is it will be in the inside and you wouldnt want to take off the lens again since its a hassle.
Old 01-25-15, 10:01 PM
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Alright cool, I need to bake them off correct? What time/temperature?
Old 01-25-15, 10:39 PM
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1sWt2GS
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Do a simple search. Theres plenty of DIY's on here that cover headlight retrofits that involve baking and opening up of headlights.
Old 01-25-15, 11:02 PM
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monkey92
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i do 250 degree fahrenheit for about 10 mins.
Old 01-25-15, 11:11 PM
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depending on if you want to spend money or not check eBay for some used headlights... many times you find some in great shape and the lenses are pretty good... If your not on a budget then you could buy some Depo lights and swap the lenses...
Old 01-27-15, 03:01 AM
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LovelyIdol
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FYI - if you separate them and clear the inside, you are wasting your time. You need to clear the outside to protect the plastic from UV rays. They will still be yellow if you do not treat the outside. Honestly if you aren't super worried about polishing them a few times a year, just polish them every couple months. They shine back up enough for you not to care.

If you have yellowing, they will never be 100% clear again. Its unfortunate, but its true. Toyota messed up with the coating they chose and as such, much like carbon fiber oem pieces do, will always have discoloration. If you get them new, you should do some research as to what coating is on them through whoever you get them through ( good luck ) or just prep and clear the lenses before they yellow on you.
Old 01-27-15, 10:57 AM
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You can clear the yellowed lenses. Takes a little work. But it's not much cause of the drill. What people seem to forget is that a good sealer will last you years.
Old 01-28-15, 01:41 PM
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Scallywag
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Mine havent yellowed but the are leaky and moisture gets into it. Can the seal be purchased or is it a total replacement?
Old 01-28-15, 01:53 PM
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Need4Speed
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Agreed you should remove the headlight and clean up the lens from the inside out...
Also add a better adhesive glue to prevent the headlight to be expose to the outside weather...
Old 01-28-15, 02:54 PM
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LovelyIdol
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Its easiest to just take the lens completely out of the headlight and reseal it again
Old 01-28-15, 08:28 PM
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Originally Posted by LovelyIdol
FYI - if you separate them and clear the inside, you are wasting your time. You need to clear the outside to protect the plastic from UV rays. They will still be yellow if you do not treat the outside. Honestly if you aren't super worried about polishing them a few times a year, just polish them every couple months. They shine back up enough for you not to care.

If you have yellowing, they will never be 100% clear again. Its unfortunate, but its true. Toyota messed up with the coating they chose and as such, much like carbon fiber oem pieces do, will always have discoloration. If you get them new, you should do some research as to what coating is on them through whoever you get them through ( good luck ) or just prep and clear the lenses before they yellow on you.
I feel you! I just have one that has a little oxidation on the inside that I want to clean up...shouldn't be much harder than doing the same on the outside I would think. I don't like having one super nice headlight and one that is a little worse...lol. Thank you for your help!
Old 01-30-15, 05:58 AM
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repugnante
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They will get yellow again. No matter what you do. You can sand and polish all you want, in time, they will yellow up again. Your best bet is to buy new headlights or leave it as is. Unless of course you don't mind sanding and polishing every 6-8 months.
Old 01-31-15, 12:12 PM
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If your car sits in the sun it will be way faster than that, without a clear over them they will always yellow again


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