rickg87

My 993 C4S replacement windshield from 3 or 4 years ago makes
Very annoying creek ing sounds all the time.
Could it be the glue/apoxy they used.
Should I have it removed and reset?

95carrera

Lot of recent threads on this. I need to pull mine and check for rust. Might be a good idea for you to have it pulled and replace with OEM seal and see if that stops it. Shouldn't cost too much to have it resealed plus the part.

dgmattingley

Do a search for "rope windshield creak" and you'll find a fix. Just did this and seems to have worked.

Neil Perry

The 993 manual suggests filling the gap with a urethane sealer, that stops the creak and the rust.

It is an addition to fitting a new windscreen, in the Porsche 993 manual.

blindspot79

A new rubber windscreen surround and teflon tape around the aperture cured all my squeaking. If your surround is newish, a few dollars of 3m teflon tape may just do the trick.

mr_bock

For what it's worth, a front shock tower strut bar helps stiffen the upper area. Helped my car, and both front and rear glass was replaced.

bruce7

One option is to spray 3M Silicon Lubricant (Dry Type) 08897 under the outer seal all around the window.
Use a plastic trim tool to raise the seal so as not to scratch the paintwork and slide it along the seal and
spray under the seal onto the underside of the seal. The seal moving against the body is most likely
causing the creaking sound. Also spray the seal along the topside of the doors which will squeak as well.
And it would be a good idea to use a rubber care product on the door seals that surround the door
opening.

NP993

The creaking is caused by the hard plastic glass surround rubbing against the windshield aperture. It's because the glass wasn't installed correctly. Wouldn't be too expensive for a glass pro to remove and reinstall correctly.

bruce7

One glass man who had a lot of experience with 993 glass replacement said
that the factory used the wrong adhesive when they first installed the glass.
They did a lot of replacements during the first few years of 993 production.

matt777

This may be part of the problem. I doubt many installers would fill this gap without being told to do so. If they space the windshield 4mm from the bottom, center it side to side I don't see why any rubbing would occur.

goofballdeluxe

This is a very common problem on almost all 911s, not just 993s.

However, I would make an argument that this is less about a poor installation and more about a poor design from the factory.

The windshield rope can help, as can some silicon lubricant or Pedro's Ice Wax.

I would probably say that on a 15+ year old 911, it's more than likely to get some squeak, especially on warmer days and without rope/lube, even with a perfect install. It's just the nature of the poor design.

TMc993

In the case of my 993, cold weather is most often the culprit...I assume because the rubber is harder and less likely to flex.

Neil Perry

Others suggest installing the rope.....
But wouldn't the rope hold water in the gap and help to create the rust?
The rope would not be completely water tight.

Filling the gap with urethane would be water tight, and help with the prevention of rust.

e9stibi

The issue is that when you put in the next windshield it is a PITA to "cut it out". The manual specifies specific tools and you can apply your own judgement if they will be used...

The consequence is that cutting out the windshield will lead to significant damage of the paint work and you can apply your own judgement if they will fix this properly "at their own cost" (because they damaged it with wrong tools and procedure) before putting the new windshield in ...

-> nice in theory but in practice: BAD RUST down the road

matt777

The glass techs cut out multiple windshields everyday so getting it out without damaging anything should not be an issue. If I was doing the work it might be another story.