HouTexCarreraS

Call it what you want, it's defective and deteriorating and should be replaced under warranty. If you try to get that smeary mess off with a rag and alcohol, it's a PITA and the ugly deformed "seal" is still there--living with that is absurd on such an expensive car. The bigger question is why doesn't Porsche figure out how to fix this instead of continuing to pay a fortune to replace so many windshields. My install was perfect, no leaks or scratches--had it not been, the dealer would be addressing any issues until I was satisfied.

Nashvegas

Happy Thanksgiving.

Quick bit of clarification seems to be needed on this thread:

-- The windshield is a piece of glass that is bonded in with urethane windshield black adhesive. Pretty standard. This urethane adhesive is not failing on 992's and the urethane adhesive is what creates airtight/watertight seal and holds the window glass in.
-- However, the 992 windshield glass comes WITH a rubber/plastic molding permanently attached to it that is mostly I'd imagine for cosmetic/debris reasons. Lots of cars actually have similar. This is not a waterproof seal, in fact if it were, it would trap water between it and the urethane adhesive bead that holds the glass on.
-- This rubber/plastic debris trim is not replaceable as a separate spare part. This part is affixed to the windshield glass upon manufacture of the glass, and it is what is deteriorating.
-- So the correct repair is new glass(with new trim integral to the glass)

FYI other manufacturers have had this exact same issue over the years (e92 M3, some Land Rovers, and I'm pretty sure mid 2013-2016 or so Boxsters/Caymans had the exact same issue). I would not be surprised if Porsche comes up with a replacement seal part that can be popped in / on after the deteriorating seal is somehow manually removed, as a full windshield replacement for the issue is costly and can create other problems.

I would agree 110% with those of you who are saying that windshield replacement invites other problems. It's so true. I had a much loved e30 M3 that got a new windshield, and the tech stopped the work and refused to put the new window in -- multiple rust spots where whoever had at some point replaced the windshield had gouged metal through the paint and primer. Had it fixed at a body shop then put a new window in. Bummer, and completely invisible to me until I'd had the windshield removed. This is what I'd worry about 5-10-15 years down the line w/ these 992 windshields.

HouTexCarreraS

Yes, this is my understanding of how the glass is installed--it makes a nice smooth transition between the glass and painted body parts (or sunroof panel--mine is a slick top). I won't be keeping the car out of warranty, so hopefully there won't be any rusting issues. The repair was strictly for cosmetics and I would never have accepted "popping in" an additional piece of trim as a fix for the problem. Also, I'm not sure how manually removing the deteriorated seal from the small gap without removing the windshield could be effectively accomplished without a lot of damage to the surrounding paint/metal. I do, however, feel comfortable with replacing the windshield at the Porsche dealer by a first class glass company under their supervision. Do you know if Porsche has ever addressed the material that this rubber/plastic trim is made of to prevent its deteriorating? This seems to be happening a lot, even in areas that don't have especially extreme weather conditions--it's hard to believe that this problem couldn't be eliminated, yet it's been going on for quite some time.

Nashvegas

I am not aware of any of the internal workings at Porsche (as much as I wish I was!) -- but I dare say they should better micromanage their glass suppliers because, you are right, this has been happening for 8-10 years on various Porsches... it's so dumb.

Tupper

Seems to me that the OP’s experience has been unique, or the exception to the rule. Most of you are reporting that the matter was fixed under warranty without much issue

aggie57

A lot of work on a car has the potential to cause issues down the line if not done correctly. The point about warranty is it puts risk on the manufacturer, even if consequential issues develop from work done under warranty after the warranty period expires. Unless you think Porsche is at risk of going bust why would you not have them deal with this?

py0413

Latest update,

After waiting for 2 months and no responses from either Porsche or the dealership, I decided to pay and get this fixed. $2775 Canadian dollar is the cost for Porsche windshield and labour. The car is in storage and also for sale.

All the best to you folks and a great holiday season.

garthg

This makes zero sense to me.
If I were going to sell the car, I would just grab a rag and some acetone and clean the smear off the pillar, rather than wasting $2,775 I'm not going to get back.
The problem is purely aesthetic. It's not causing any water or air leaks.

Feld

2012 turbo rear window, all original stored inside.

py0413

I wish I could save the $2700 and tell my buyer just wipe it off and don’t worry about it? can I?

tmslc

NO ... you are wrong here.

both of the right and left radiators are totally exposed at speeds and those plastics little g-strips they use to cover the radiators are NOT sufficient and don't close under conditions they should be. if you daily drive your 992 on todays roads and run your AC your radiators will get hit with objects other then bugs and it is a part of the car. if something hits it hard enough to break the radiator vent it can leak and cause cooling issues, which does make it is Porsche issue. it is indeed a design issue they should cover. granted, like everything Porsche the parts are not extremely expensive compared to other European car parts but labor is. regardless, Porsche should be way more open to hearing cases on this. Porsche should be more aware of this and i hope they will take a closer look at this matter in the future.

my 992 has just under 6K miles on it and both of my radiators look like they have been hit several times with rocks, etc. it is not as bad as others i have seen but still this is something Porsche really needs to take a closer look at.

the GTS has even less coverage then the C/CS which makes it easier to damage, which makes no sense to me (aside from getting more airflow into them, which again is a Porsche design).

paint chips, etc if you wash your car regularly you can stay on top of or have your detailer take care of and a few paint chips won't change the value of your car. a left radiator with a bird imprint can! not that it is all about value but really ... those radiators on the 992 are so exposed from the factory and if that is the case Porsche should either make them bullet proof or cover with a grill cover or cover under warranty in the event something happens to them.

good morning!

BudFox6

When I took delivery of my 2020 992 (manufactured in 2019), I encountered a similar issue. The dealer had to source a new windshield from the factory since resealing wasn't possible then. Although the dealer claimed this was an unprecedented problem, it's questionable whether the same claim made by a Porsche service department would be credible three years later.

I later discovered from an upholstery shop owner, who frequently repairs European car interiors, that European Union regulation of Volatile Organic Compounds (VOCs) caused a reformulation in adhesive and sealant products. This resulted in less effective formulations. The issue might be traced back to the 2019 update of Directive 2010/75/EU of the European Parliament.

mschwa3439

i just took my 2020 C4SCab in for 30K service. I showed the windshield to my service advisor. The seal is incorporated into the windshield itself. He submitted pics to the Porsche warranty department and was able to replace the entire windshield/seal under warranty. Looks great now.

AlexLou

Just noticed it on my 22’ Turbo S, I was wiping my windshield and saw the black glue melting on top my windshield trim. Pissed off and decided to search, sure enough it’s common thing.

my 991.2 4S and 991.2 TS didn’t have this.

gonna ask the dealer, windshield got some chips anyway, would be nice to have a clean windshield again.

mikey94025

That's surprising. My vague recollection is that the melting windshield trim plagues many of the 2020 992s, but the newer models figured out how to do it correctly. Are there other 2021 or 2022 owners also getting their windshields repaired under warranty?