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Old 02-22-2012, 12:18 AM
Join Date: Sep 2008
Location: Atlanta
Posts: 22
nosoule46 is on a distinguished road
Question Help me find my leak

We have 05 X3 that is allowing rain water into the car. Specifically the water accumulated on the driver's side, rear at carpets. Enough was to soak a handtowel.

I had thought the washer fluid was re-leaking but now I know it was the rain.

This is the second time now after a rain storm. I noticed it as the condensation was building up on the Inside of the car.

I am guessing it may be coming down from the driverside B-pillar and into frame/floor but have no ideas. We have the moonroof.

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Old 02-22-2012, 01:54 AM
AKX3's Avatar
Join Date: Jul 2008
Location: Plano/Frisco, Texas
Posts: 76
AKX3 is on a distinguished road
Check the moonroof drains and gutters...
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Old 02-24-2012, 01:46 AM
Join Date: May 2008
Location: Daly City, CA
Posts: 22
Gee3 is on a distinguished road
I'd also pull off the rear door panels and see if there is a leak on the seals of the vapor barriers. The sealant holding the barriers in place may have warn out or were not laid down well and a leak may have finally pushed it's way through.

I had that occur and my rear carpet was soaked. Turned out I had not sealed it fully when I pulled it off to fix my drive dogs for my rear windows.

Hopefully that helps! Good luck!
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Old 03-20-2012, 11:40 PM
Join Date: Jul 2007
Location: Oklahoma City
Posts: 51
Flyer1 is on a distinguished road
Second what Gee3 says. You can check for a leak by opening the door then spraying water at the base of the window. You may see the water coming out from behind the door panel where it meets the metal door. On my X3 it flowed from there onto the plastic at the base of the rear seat then down into the floorboard.

I had the same leak. I had to replace the part that connects the window lift motor to the glass on my right rear door. I carefully pulled off the styrofoam-like vapor barrier while using a heat gun to soften the adhesive. I tried pushing it back in place and reusing the adhesive that came on the SAV but it developed a leak. I removed door panel again, peeled back the vaopr barrier where it was leaking along the bottom (no heat gun this time since seal was already broken) and applied Permatex Black Rubber Sealant I purchased at the local auto parts store. That was a couple months ago. So far its been water tight.

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