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My 2002 540i is having a hard time since I neglected it for the past 8 months, I have been tackling the issues one by one, I replaced the battery (fixed quite a few electrical gremlins), resealed the vapor barriers in the rear doors and shop vac'd a'll the water once the half inch of ice melted and pulled the rear seat out and pulled the carpet up and let it sit over night in a garage with the heat turned up to 90 on the thermostat and even added a kerosene salamander for a bit. Today I'm replacing the front passenger side window regulator and powerflex bushings for my thrust arms are on the way.........So the next project i want to tackle is the ****ty crumbling rubber around the windshield and back glass.....is it something that can be DIY or is it smarter to have a professional do it, I'm reasonably gifted at auto repair but have no experience with glass.....What's it gonna take, what's it gonna cost if I were to do it myself and what would it cost to take it to a shop......Thanks guys
 

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I used that video that 528iAut posted above as a guide and it's not difficult. I did, however, incorrectly order the wrong gasket for the windshield (protective glazing vs not?), so make sure that you get the correct pieces.
 

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I did, however, incorrectly order the wrong gasket for the windshield (protective glazing vs not?), so make sure that you get the correct pieces.
What exactly do you mean the correct pieces. Are you saying there are 2 different part numbers for the front glass trim cover? 1 for if you have never taken the windshield off and 1 for if your windshield has been replaced and the extra sealer prevents correct installation of the weather seal, please explain.
 

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If that is the original seal or windshield it will just pull right out with minimal effort. It is just a noise reduction feature and offers no water sealing functions at all.

When installing the front trim, my suggestion is that you ensure you get the top, horizontal run correctly placed. Make sure both ends sit flush right at the corners. After that getting the sides to slide into place is easy.
 

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a 1/4" wooden dowel sharpened to a blunt flat (screwdriver like) point and a spray bottle of water with a bit of dish soap in it aids the installation a lot.
 

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It's a relatively simply DIY. The parts are funny looking. 3 pieces of rubber that are connected by a hidden fitting that allows it to bend (the corners of the windows) but not separate. I found the sides to be easy, it was the top along the roofline that was harder. Soap (or other lube) and any kind of dull push tool works. If you start one on corner you may get all the way to the other corner find out you are short. So pull it back out, stretch it more, and reinstall. (A buddy may help here.) I found that slightly pounding on it helped it go in (heel of your hands works, but it'll hurt later). Just don't pound parallel to the windshield. Pound parallel to the roof instead. Otherwise, if your hand dips low, you'll hit the glass directly and it's weakest on its edges. Ask me how I know. :cry:

+1 to crazy4trains and mattmar1
 

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If your windshield has been replaced it is impossible to get that windshield trim back
on correctly because of the 3M adhesive that is used oozes out and makes it not doable
without fashioning a tool to get under the lip of the windshield and slicing the goo away perfectly.

I went through this in 2012 replacing that trim piece, never got it to fit correctly.
But I knew about that going into the repair (windshield possibly having been replaced by the PO)
I have a new trim piece thats been sitting around for 7 years as I bought yet another after my 1st failed attempt.

Probably gonna have to take the windshield off to get it right.
 

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If your windshield has been replaced it is impossible to get that windshield trim back
on correctly because of the 3M adhesive that is used oozes out and makes it not doable
without fashioning a tool to get under the lip of the windshield and slicing the goo away perfectly.
Probably gonna have to take the windshield off to get it right.
In replacing my trim around the windshield and rear glass, I considered this: is it possible that BMW installed the front and rear glass with the trim already in place on the glass? The way it finds a home in the glass seal that's nearly impossible to get re-seated with a new part leads me to believe this might be a possibility. The other thing I considered is that taking the glass out seems to be the only way to get new trim to fit correctly.....
 

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I ordered this guy: https://www.fcpeuro.com/products/bmw-windshield-glass-seal-front-e39-51318172745#fitment (Part #:BMW-51318172745), which is for E39's with option code S357A (protective glazing)

It wouldn't sit flush on the sides of the glass and wanted to pop out.

This was the correct seal [for me]: https://www.fcpeuro.com/products/bmw-windshield-glass-seal-front-e39-51318159784#fitment (Part #:BMW-51318159784), for E39's without "protective glazing."

Can you describe the "protective glazing"? I did not know there were differences in the glass seal...
 

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Rear quarter glass rubber

If anyone has any earth-shattering suggestions for replacing/repairing the quarter glass rubber, please share! That is the one piece of crumbling rubber that I can't seem to figure out what to do with...... :-(
 

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That's exactly what I needed, though it looks like a complete PITA but do-able :) Thank you!
 

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Can you describe the "protective glazing"? I did not know there were differences in the glass seal...
Apparently it isn't very common. I don't know much about it, but I dug this up from another thread:

If you had the theft-proof glazing (windows)...you probably wouldn't be questioning yourself as to IF you had them. If/when you see this option...it is obvious that the windows are not the usual ones that you see. They are thicker and have extra lamination etc.

The laminated glass developed for BMW Protective Glazing consists of two layers of glass with a layer of polycarbonate in between. The entire "sandwich" is then embedded in TPU film. It measures 9 millimeters across, and if you've seen the "insulating glass" in the 750iL...this theft-inhibiting glass is exactly as thick as the insulating glass in those models.

I also believe that this glass (glazing) option could only be had with a METAL sunroof (the glass moonroof couldn't be ordered with the protective glass)...and the REAR windows would also be fixed (unable to roll them down).

So if you have a metal sunroof, your rear windows don't roll down, and the glass is thicker than what you've seen on other e39s...then you DO have the "protective glazing"....if not...you have the regular-ol-common windows like the rest of us.
 

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Sorry to drop the ball on this thread. Thank you for the clarification! I'm eyeing the new rubber at FCP Euro and will likely order both sides this spring. I've got the tools and the urethane sealant, and most importantly I think I can handle this job... :)
 

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Where are you using the urethane sealant? To my recollection the seals do not require any sealant. They are merely a friction fit.
 

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Where are you using the urethane sealant? To my recollection the seals do not require any sealant. They are merely a friction fit.
Friction fit? No, they are sealed in like the front and rear glass with a urethane sealant that must be cut just to get the glass out, then re-sealed to secure it in place. There are a few videos, in this thread I think, of the process...
 

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Where are you using the urethane sealant? To my recollection the seals do not require any sealant. They are merely a friction fit.
what he said ^^^^...no sealant is needed unless you are removing the glass windshields...then the sealant is used for the glass only, not the outer seal piece. to remove, pull up a spot, remove, reverse for new seal using a mixture of water and dish soap in a spray bottle and a wooden dowel with a blunt tip. when i had my car repainted a few years ago, some slow leak there used sealant on the trim pieces, and hadda remove the seals, clean everything up, and install new ones. was a PITA. yeah shoulda had them do it, but i made them supply the new seals and did it myself. the trim piece is more or less cosmetic, water sealing is done by the windshield.
 

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Hold-up! I see what's happened here: I got the thread off topic by raising a question about quarter glass rubber replacement. The conversation since then has been mostly about those quarter glass rubber seals, not the trim around the front (windshield) and rear (just ahead of the trunk) glass.

I'm replacing the rubber seals around each piece of quarter glass, and I'm 99.9% certain those require sealant to hold them in place. Correct?
 
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