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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 01-16-2013, 09:22 AM   #1
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Join Date: Jan 2013
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My Ride: BMW 325xi
Water leak in my cabin

Water is leaking into my cabin during rainy days and I am confused where it's coming from. The wet spot is around the foothold on the driver's side. I have checked the sunroof drains and know that is not the issue
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Old 01-16-2013, 09:23 AM   #2
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Your vapor barrier in the door is compromised. Open the door panel and check it out.
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Old 01-16-2013, 03:34 PM   #3
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You'll need some 3M Windo-Weld Ribbon Sealer for the vapor barrier, available from amazon for about $15.
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Old 01-16-2013, 03:38 PM   #4
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I agree, probably vapor barrier. I used a black caulk, can't remember the exact name right now but next time I am in the garage I will look, available from your local hardware store. Around $3. Has been dry for a couple of years now.
'01 330xi
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Old 01-17-2013, 10:31 AM   #5
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If the sun roof drains are all open and the hoses are not cracked, I would say its time to remove the door panel(s) and check the moisture barrier. Plastic is either torn or the "caulk" material has a hole it it.
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