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Old 01-15-2013, 08:45 PM
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bluebee bluebee is offline
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Location: San Jose, California
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
The E46 crowd is having trouble finding the right sealant according to this post today:
Originally Posted by computerwhiz1 View Post
I have redone all 4 doors vapor barrier seals twice now. I used the 3M window-weld in a roll which is exactly what the dealership told me to use. Apparently its what they use to do the job as well. The first time I redid the seals they leaked and I assumed that it was because I hadn't pressed down hard enough to obtain a good seal. So this most recent time I used a small paint roller to roll over the fresh bead of window-weld on each door to be sure that I got a good seal. I checked each of the vapor barriers right after resealing them and all of the seals looked good and held when I tugged on them even moderately. I thought that surely I had solved the problem. Not so! The doors have now leaked again, all four of them. It has rained here in the south-east for about the past 7 days straight so I have some pretty soggy floor boards on all four corners. I am going to reseal them again this weekend using silicone sealant as I am about 99% sure it will work. I will just loose the ability to simply pull the vapor barrier off if I need to get under it at a later date. Does anyone have any other suggestions as to what to use before I use the silicone sealant? I am sure it is the vapor barriers as I have taken the door panels off and watched the water run out from behind the vapor barrier and into the car where the vapor barrier has pulled away from the bottom part of the door.
Please read the suggested threads and add value, either by pictures or by descriptions, so the next person stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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