The seal around the windshield on my '05 C4S s loose. I saw on the parts diagram that there are two parts. A hard plastic inner portion and a soft rubber seal that appears to mate to that plastic frame and provides the seal to the metal windshield frame. It won't stay seated around the edge of the glass, pulls away from the edge of the glass the rubber doesn't snug to the body windshield frame. The car was living in TX when I bought it last fall, so I'm thinking the rubber maybe shrunk and hardened in the sun/heat.
I bought the soft rubber outer piece to replace and hopefully regain a snug fit. Before I pull the seal off the windshield and see if I can fit the new soft rubber portion to the existing rigid plastic frame, which I assume is fine, does anyone have any experience or tips/tricks on how the soft rubber piece gets mated into the plastic frame and reinstalled? Just don't want to rip the current assembly off and mess something up. Thanks for tips from anyone who has done this replacement on their car.

 

Its just worth it on that one to go to a glass shop with experience.
In my experience its about a 50-50 deal if the window breaks when taking it out.
IIRC there is still adhesive under the glass to the window frame..
(Disclaimer its been a long while since I did a Porsche window.. )

 

Thanks! I maybe wasn't clear. I'm not talking about taking out the windshield or it being loose. This is just the plastic/rubber seal that goes around the edge of the glass and seals around the outside edge of the glass and should form a snug fit against the metal frame (the body). It is loose and sloppy. I agree, would leave anything that involved the glass to a windshield repair shop.

 

you should be able to just press it in.
before you remove the old one make sure you got the right part.
I replaced mine (both front and rear) when I got the ceramic coating.
my car is 02 C2, but I believe it's the same.

 

Following, as I'm going to replace mine soon as well. I purchased the rubber outer seal. On mine, there is a plastic (possibly metal) trim piece that I'm assuming is glued or otherwise attached to the glass, and the rubber seal presses in between that and the body. That trim piece is loose in a couple places, and I intend to glue it back (bought some 3M gooey adhesive stuff for that). We shall see how it goes...

 

I'm rusty, but if it works like most windows, you need fresh adhesive so the trim can basically get glued in to the slot. its kind of a sandwich of materials.

I've had windshields pulled by Satellite and IIRC the cost was about 1.5 hours labor.. Without a bunch of auto-drive and other digital mayhem involved..

 

Thanks. Similar thoughts here. Going to try and r&r the seal. I just wasn't sure how the rubber seal got separated and new one attached to the inner hard plastic that wraps around, over the edge of the glass, hoping it just pulls apart non-destructively. I had mistakenly ordered that part from the catalog and then changed, getting the outer rubber seal. I'm hoping that plastic frame piece will be good; It is all intact; just not held in against the glass. Hoping the new rubber will make it squeeze in tighter.