Is it safe to temporarily seal my windshield leak?

The other night I drove home to my parent's house to get some work done on my car (diff fluid changed (my dad knows a BMW tech who makes "house calls") ). It was raining. Lots of rain came in at one point and I was able to pin point the leak. It's the windshield. It was dripping from the windshield down to the floor.

There's a gap/hole at the very tip top corner on the driver's side. When I got home, I had my dad spray the hose on it at low pressure and quite a bit came through.

So... I'm looking to do a short term fix for now.
1.) Can I use the same type of sealant that people use to seal off the door vapor barrier? (Some type of sealant from AutoZone for $7)
2.) If I do this, would it cause problems for when it's time to replace the windshield and/or correctly seal the existing windshield?

Just use a thin coat of non hardening silicone.

It's not a toy, it's a Droid > Sent from my S4 > Mason, OH

^this is what I used on the e21 windshield before I had it replaced

Noob/dumb question: How do I know what's non hardening? Would it say on the packaging/Would an AutoZone dummy know what that means?

Yes. It says it.

Yes, they will know.

It's not a toy, it's a Droid > Sent from my S4 > Mason, OH

Thread revival.

So I still have a leak, and it's coming from a different location than the windshield.

I was thinking one of the ways I could narrow it down was to temporarily plug the sunroof drain on the front driver side.

Any issue with that? There's still 3 other drains, right?

Quote:

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Originally Posted by stephenkirsh

Thread revival.

So I still have a leak, and it's coming from a different location than the windshield.

I was thinking one of the ways I could narrow it down was to temporarily plug the sunroof drain on the front driver side.

Any issue with that? There's still 3 other drains, right?

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Bump, please help. We have rain still scheduled for next week and today/tomorrow are my only two days to attempt to test this.

I honestly don't know. Sorry.

I went looking for my sunroof drain holes a few months ago and I only found two drain holes, at the front of the sunroof frame area. Not sure if there are only two drain holes or if i just couldn't see the rear drain holes because sunroof was in the way. I have a 2003 sedan.

Quote:

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Originally Posted by stephenkirsh

I was thinking one of the ways I could narrow it down was to temporarily plug the sunroof drain on the front driver side.

Any issue with that? There's still 3 other drains, right?

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Think it'd be safe to plug one?

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Also, I was looking at the front lower windshield cowl and there's a few perpendicular cracks on the driver's side. Could this be the source?
http://www.ecstuning.com/BMW-E46-330...483/ES2083242/