Windscreen rubber seal (oval dash) removal/application.

[sutters]

Good morning gang, I need to replace the rubber windscreen surround, its the piece that only cover top and sides of the screen itself and has a slight over hand at the lower ends. Its this area that has become brittle and cracked. I can get the part from OPC still :
94455953507 - £30.61 + vat. My question is firstly removal of old, is there any adhesive used when putting these in or is it a simple rip out. Same for application of new. naturally id clean up the gap but is it just a push in starting at the central point of the windscreen (is there a marker on the seal?).

thanks in advance.

Ian

 

[Monkeythree]

There is no adhesive. The old one should pull out and the new one should push in. However........
You might find that when you start pulling the old one it tears and leaves the l part of the T shape stuck in the channel. You need to be sure you have got any remnants out before trying to fit the new one otherwise it won't locate into the channel. Now for the catch.......
The seal as fitted as OE is trapped under the front wings. I presume this is done to direct water run off from the screen towards drain holes and not down the A pillar. So if you want to put the new one in correctly then you need to take the wings off! I refitted mine as per OE but I had my wings off anyway. Its a big job to remove the wings and I don't know how crucial it is to have the seal under the wings so I might be tempted to cut it short (where it meets the wing) and bond it down at that point.

 

[944Scott]

That's handy I was wondering what they cost to replace.

 

[sutters]

v helpful

cheers

 

[Paul 290T]

There is no adhesive. The old one should pull out and the new one should push in. However........
You might find that when you start pulling the old one it tears and leaves the l part of the T shape stuck in the channel. You need to be sure you have got any remnants out before trying to fit the new one otherwise it won't locate into the channel. Now for the catch.......
The seal as fitted as OE is trapped under the front wings. I presume this is done to direct water run off from the screen towards drain holes and not down the A pillar. So if you want to put the new one in correctly then you need to take the wings off! I refitted mine as per OE but I had my wings off anyway. Its a big job to remove the wings and I don't know how crucial it is to have the seal under the wings so I might be tempted to cut it short (where it meets the wing) and bond it down at that point.

I was just thinking, the inner and outer wing surfaces plus the sealant bonding the wings to the bodysides are sprayed in body paint. To have the factory fit the window seal before the wings are bolted and sealed to the body would mean a build sequence something like this:

fit windscreen and its seal to the unpainted body shell
mask the above items from paint
fit the unpainted wings
apply sealer
stove sealer
spray the bodyshell and wings
stove the bodyshell etc at around 150°C

This would mean the bodyshell beneath the window seal would not be painted. So it can't be this build sequence.

They could paint the body only with the wings not fitted. Then fit the windscreen and its seal. Then fit prepainted wings, then sealer. The spray over the sealer. This would be possible.

I should get out more

Paul

 

[bmnelsc]

A bit late for this post but it seems unlikely to me that Porsche would be putting windshields in and then returning the car to an under-body prep area for sealer and paint. I wonder if the windshield gaskets just pushed into the channel with the wings in place (probably easy with a little lubricant, shiny new surfaces and supple new rubber). It seems to me (based on watching new vehicle assembly videos I must confess but with bonded in windshields) that the windshield goes in after the dash board, headliner, etc is fitted.
So - when you have the old seal break where it goes under the wings is it possible to push the broken pieces through the channel (out the bottom) to clear the way for a new seal? Seems to me that windshield replacement is covered in the workshop manual but I don't recall any mention of removing wings during this process - probably says something like ...replace the windshield seal if required...