Need Help with Rear Sunroof Drains!! - Bimmerfest - BMW Forums

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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 02-10-2013, 06:35 PM
Yourrid Yourrid is offline
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Location: Buford, GA
Join Date: Jan 2013
Posts: 48
Mein Auto: 2004 BMW 325Ci Coupe
Angry Need Help with Rear Sunroof Drains!!

I've been having a problem with water somehow getting underneath my rear seats, and under my spare tire without any sign of it; until now. I took apart the rear C pillars (the ones on either side of the rear window) and poured water into the sunroof drains... found this...

That is water pouring through one of the bolt holes on the driver side rear C pillar. I'm not sure where the water goes, but it shows up under the seat and then in the trunk.

Looks like I need to run a new sunroof drain hose down there. Anyone know of a good write up and/or diagrams to do this with? I'm guessing I will have to pull down the headliner and should have a pretty good shot at the hose from there, but where does it connect to down near the fender??? We're supposed to be getting a lot of rain in the next few days so I need some help ASAP

Any advise and/or pictures would be much appreciated!!!

Last edited by Yourrid; 02-11-2013 at 11:20 AM.
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Old 02-11-2013, 06:38 PM
QAfred QAfred is offline
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Location: Panhandle of Florida
Join Date: Aug 2008
Posts: 919
Mein Auto: 328i, 330ci, R1200C
Try accessing number 20, (yes , under the headliner as you suspect) it is the water outlet hose that connects to the drain line running down the C-Pillar. The line probably came off that outlet or your problem will become evident once you access this rear outlet hose and follow the tubing down the C-Pillar.
I don't think you'll need any more diagrams, to see where the hose ends up draining, as I believe you'll need to fix something within 2 feet of this outlet.
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