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View Full Version : sunroof water leak problem down B pillar. Please Help!



Noma12vA4
01-16-2011, 03:28 PM
I had had an unknown water leak on the drivers side of my 1996 a4 quattro, leaving a puddle of water in my rear and front side. I recently discovered the leak is from the rear left sunroof drain by pouring water through the hole and watching it dribble down the b-pillar along the seatbelt and along the door down to the fuse box.
Today, I took off the upper portion of the b-pillar and pulled the headliner so I could try to pinpoint the leak location. As I poured the water, I could see it literally go straight through the drain hole and down the headliner, onto my head. From the info I have found from other posts, I thought there was supposed to be a hose that drained out the rear end, although I could not see any such hose. Does anyone know any information about the '96 sunroof drainage system and why there seems to be no hose or channel for the water to drain?

stevejones19
01-16-2011, 04:33 PM
Its leaking into your car because the drain must be plugged somewhere on it. It's pretty easy to clean it. I'll try to find the DIY real quick

Here you go http://www.audiworld.com/tech/ext.html you have to scroll down the page till you see Procedure to clear sunroof drain

Noma12vA4
01-16-2011, 05:29 PM
I dont understand how there could be something clogging the drain b/c I cant locate the drain at all. i already followed that procedure but instead of inserting it in the bumper drain, I put the spedo cable down the sunroof drain from the top. The cable wound all the way down the b-pillar until I hit a crinkley sound(like paper or plastic), but I tried it on the other side and the same thing happened. When I pulled the headliner back off the roof I could basically see the light coming through the hole where the water is draining through, with no hose in site to direct the water to the rear drain point. I will rip it apart again and take pictures tomorrow because this is bugging me like no otherrrrrr[headbang]

Shhmaudi
01-17-2011, 11:45 AM
I feel you pain bro I went through the same thing a few weeks ago. I took my car to the dealership because there was a class action lawsuit about the sunroof drains. They fixed it for free. I washed my car yesterday and held the hose over the sunroof with no leaks. I suggest you do the same. Tell them you got a document in the mail. this was my ordeal
http://www.audizine.com/forum/showthread.php/403799-Help-flood-in-my-car!!!!!!!!?highlight=

Fanatic
01-17-2011, 12:28 PM
I feel you pain bro I went through the same thing a few weeks ago. I took my car to the dealership because there was a class action lawsuit about the sunroof drains. They fixed it for free. I washed my car yesterday and held the hose over the sunroof with no leaks. I suggest you do the same. Tell them you got a document in the mail. this was my ordeal
http://www.audizine.com/forum/showthread.php/403799-Help-flood-in-my-car!!!!!!!!?highlight=

This is the best news I've heard in weeks, I'm having the EXACT same problem you were having. Thanks!!!

Noma12vA4
01-17-2011, 02:21 PM
hahaha I looked through that lawsuit yesterday and there offering that service for 1997-2006 a4's. Mine is a 96' WTF!! but ya instead of running a hose over the sunroof, I opened the roof and individually poured water through each of the sunroof drains. The front drain worked perfectly and drained outside of the drivers door jam, but the rear poured right onto the headliner and down the b-pillar. Is there supposed to be a hose connected to the drainage hole that directs the water to the rear drain or how else could the water collected from that drain?

EuroFreak
06-19-2011, 04:09 PM
hahaha I looked through that lawsuit yesterday and there offering that service for 1997-2006 a4's. Mine is a 96' WTF!! but ya instead of running a hose over the sunroof, I opened the roof and individually poured water through each of the sunroof drains. The front drain worked perfectly and drained outside of the drivers door jam, but the rear poured right onto the headliner and down the b-pillar. Is there supposed to be a hose connected to the drainage hole that directs the water to the rear drain or how else could the water collected from that drain?

Just discovered that my rear drain is leaking somewhere between the b pillar the c pillar also. Any updates on this? Will Audi take care of this for free? (wishful thinking, I know)

zrowcool
06-19-2011, 04:36 PM
there is supposed to be a hose that goes the rear drains and out on the back bumper. its not uncommon for these hoses to come lose when they are clogged since the pressure will make them pop off.

my suggestion is to pull the headliner out and find the hose. im 99% sure the hose would be sitting in your headliner somewhere. pulling out the headliner can be a pain in the ass but thats really the only way i see that will solve your problem.

Noma12vA4
06-19-2011, 11:14 PM
I believe the free dealer sunroof service is applicable for '97+ A4's so I would just call the dealer.

At first, I thought the rear sr drains ran down the b-pillar, along the bottom of the door and out the bumper. Though, I was told that they run along the roof and down the c-pillars. I partially pulled back my headliner above the b-pillar on the drivers side, but could not find the disconnected hose, probably will pull it all out before next winter. The massive leak into my drivers side F/R foot-well that I started this thread for ended up being from the hood-cable release grommet which was a very easy fix.

EuroFreak
10-01-2011, 04:33 PM
Heads up to whoever may still have a leaky sunroof drain even after cleaning the drain hoses. I had a problem with leakage from the area between the B and C pillars and my drains were not blocked. Turns out the drain hoses came separated from the white fitting where it attaches to the drains. Check out the pics and you'll see what I mean. I used GE 100% silicone to seal this back up on both sides. Even though only one side had the noticeable leak, the hose on the other side began separating as well. I'm guessing over time this may start happening on more and more cars.

Drop of water visible:

http://www.cypressconcepts.com/s4/IMG_4286.JPG

The separation:

http://www.cypressconcepts.com/s4/IMG_4288.JPG

Random pics:

http://www.cypressconcepts.com/s4/IMG_4294.JPG

http://www.cypressconcepts.com/s4/IMG_4297.JPG

Fixed with silicone sealant:

http://www.cypressconcepts.com/s4/IMG_4300.JPG