I love the customization of headlight but I always find the process of opening them a bit daunting. Nice to have a method without putting it in the oven, feels slightly less wrong :)
I've tried the same method on my a6 c7 headlights. Didn't work. I think because mine is manufactured in year 2011 and the butyl has hardened beyond heating. The process cannot be done without distorting the back housing edges significantly. And still the butyl won't melt or soften. Maybe this method works on newer car when the butyl is still fresh. Just some advise based on my experience.
So I have helped people with early B8 or other cars from around that time and this method did work. However I can certainly imagine situations where it might not work. In your case you may need to try doing the oven method. Done correctly I have been told by people where custom lights are their business that the oven is best for stubborn headlights. That process will heat the butyl more consistently and steadily over time without the risk of overheating the housing. The problem is you need to do a lot more prep and you need to find good directions because keeping the right temp is key.
I had the same problem on my B8.5 S4 (2014). I had to keep turning up the oven and by the time the sealant got soft enough to start to pull apart, the housing had melted and the oven was on like 350- I'm actually considering just trying to buy new housings and transplant the innards.
I had the same problem on my 2011 S5. Oven 225 for 15 mins and didn’t soften at all! Messed up the housing trying to separate the lens. So I tapped out 🤦🏽♂️
@@RobertoHernandez-wf8ew Same here. I want to fix my DRL. Kept the 2010 A3 headlight at 150 Celcius at oven about 15 20 mins. Only it got soft. Didnot work for me too. I will try another solution. I tried not to cry lol.
i wish i look at this video earlier. Thanks for sharing. I have a question. My 2016 audi s5 left driver side headlight frame is cracked. Any advice how i could buy a used one headlight? This is my first time working on my car on my own. thx for your advice.
So there are lots of replacements on ebay. I have heard from other people that they have had good luck with that but as you know ebay can be hit or miss. I have also heard you can get the OEM ones via FCPeuro or Audi directly but I have never tried that.
I do not use the oven for this exact reason. I never got just the right temp to get what I wanted done. I would use a good heat gun. Preheat the butyl until it is tacky then put the lens on and keep pressure on for a few minutes so they cool. After check the seal if places look open you may want to stuff some extra butyl in the area, heat it up and push it in with a screwdriver.
I seal them back by spreading the butyl out then hitting it directly with a heat gun to get it sticky before inserting the lens. Once the lens is in I heat different areas and squish it tight with a set of plyers before adding the retainer clips back on. Thus far that process has always worked for me with no leaks. I did help a friend with another car (not Audi) and found that I needed a bit more butyl but the Audis seem to always have enough.
This method should work on any non-sealed headlights. I did put it back with the same glue but some headlights do not have as much extra so you may need additional
Bro after installing bi led projector lens we have to close headlight cover or not ? If we close it will burn out or not? There’s no space for passing cooling fans air
The stock Audi B8 lights have no cooling fans and have not overheated to my experience even with the upgrades I have done. Now if you are doing similar work on another car then I can't really speak from experience sorry.
You do not need to open a headlight, however to get the effects I have in mine you would have too. I have color changing DRLs and Demon eyes. Additionally my lens are etched with a Audi symbol plus the headlight trim is wrapped carbon fiber.
THIS WILL NOT WORK WITH 2008-2012 A5 HEADLIGHTS. THEY DO NOT USE BUTYL RUBBER TO SEAL THEM. DONT PUT THEM IN THE OVEN THEY WILL MELT THE HOUSING PLASTIC BECAUSE THAT TOO IS NOT THE SAME. THOUGHT I WOULD WARN PEOPLE TRYING THIS.
