2018 Matrix headlights are $7,000+ (US$) per pair
07-27-2017, 03:10 AM
#11
AudiWorld Member
Join Date: Oct 2016
Location: Auburn WA
Posts: 297
Likes: 0
Received 0 Likes
on
0 Posts
07-27-2017, 04:37 AM
#12
AudiWorld Senior Member
I guess you don't read a lot here on AW..........
https://www.audiworld.com/forums/q5-...ights-2921762/
And Audi is not covering them under warranty.......
So if my 2014 Honda CRV headlights turn foggy and yellow, it costs me $500 to replace them. A few bolts and they are out
My 2014 Audi Q5 headlights are crazing from the inside due to lousy costly UV resistant resin, that will cost me $3200 to replace them.
The front bumper, and many other parts need to be removed to replace the Q5 headlights!!!
https://www.audiworld.com/forums/q5-...ights-2921762/
And Audi is not covering them under warranty.......
So if my 2014 Honda CRV headlights turn foggy and yellow, it costs me $500 to replace them. A few bolts and they are out
My 2014 Audi Q5 headlights are crazing from the inside due to lousy costly UV resistant resin, that will cost me $3200 to replace them.
The front bumper, and many other parts need to be removed to replace the Q5 headlights!!!
So I can see that your situation is very rare and unfortunate that Audi won't stand behind the problem. I bet the resin was not dried correctly when your headlight(s) were molded. So there is a bad batch out there. And they probably looked good initially.
Crazing and plastic part defects are very rarely caused by the resin and then by contamination usually. On a clear part, contamination is easy to see. Since your problem is not on all parts molded the part design is not suspect. Crazing is usually caused by not correctly drying the resin of moisture. Headlights/taillights I have been involved with are made from poly-carbonate. If the PC resin is not dried correctly before molding the polymer chains are much shorter than designed due to hydrolysis at the processing temperature. Those shorter polymer chains can easily cause crazing, cracking and distortion. And this can occur later.
07-27-2017, 06:56 AM
#13
AudiWorld Super User
Thread Starter
No you are incorrect, I do read the forums. Sorry for your dilemma.
So I can see that your situation is very rare and unfortunate that Audi won't stand behind the problem. I bet the resin was not dried correctly when your headlight(s) were molded. So there is a bad batch out there. And they probably looked good initially.
Crazing and plastic part defects are very rarely caused by the resin and then by contamination usually. On a clear part, contamination is easy to see. Since your problem is not on all parts molded the part design is not suspect. Crazing is usually caused by not correctly drying the resin of moisture. Headlights/taillights I have been involved with are made from poly-carbonate. If the PC resin is not dried correctly before molding the polymer chains are much shorter than designed due to hydrolysis at the processing temperature. Those shorter polymer chains can easily cause crazing, cracking and distortion. And this can occur later.
So I can see that your situation is very rare and unfortunate that Audi won't stand behind the problem. I bet the resin was not dried correctly when your headlight(s) were molded. So there is a bad batch out there. And they probably looked good initially.
Crazing and plastic part defects are very rarely caused by the resin and then by contamination usually. On a clear part, contamination is easy to see. Since your problem is not on all parts molded the part design is not suspect. Crazing is usually caused by not correctly drying the resin of moisture. Headlights/taillights I have been involved with are made from poly-carbonate. If the PC resin is not dried correctly before molding the polymer chains are much shorter than designed due to hydrolysis at the processing temperature. Those shorter polymer chains can easily cause crazing, cracking and distortion. And this can occur later.
Thread
Thread Starter
Forum
Replies
Last Post
cukoodukoo
Q7 MKII Discussion
22
05-20-2017 05:05 PM