Hi All- Just battled sunroof drain tubes again, this time with the passenger side. Carpet was soaked, nipple had deteriorated and fallen into the cabin. Same old same old that's been covered many times before. I fixed it a little differently than normal*.

When I was done, I dribbled water directly into the corner of the tray from the open sunroof and confirmed it came out at the vent at the side and didn't leak at the splice. All done, right? Well, no, then I had to dump a water bottle in the corner and well, that didn't go as well. It came out via the tube but also via the headliner along the passenger door. &#@!! This frickin' thing. I assumed I must have pulled the tube from where it connects to the sunroof and thought I'd have to deal with the headliner and tube from there to my repair in the A pillar. But it doesn't add up. I'm now thinking I overloaded the tray with so much water that it couldn't handle it and probably never was able to before--I had just never tested it like that before. I closed the sunroof and dumped two buckets of water on the sunroof and it ran off through the drain tubes, and around the car as you would expect.

So to summarize my book above, would we expect to be able to dump a large amount of water in the open tray without it running over? Or is the amount that passes the seal when the sunroof is closed small enough that the drain tubes easily keep up with it?



drain tube exits where it did before, just without the elbow. The nut just keeps it from going back into the inner fender wall. The bend into this area is gentle and doesn't impede flow



* I kluged a fix because I'm lazy and didn't want to remove the CJB. I ran a trimmer line all the way through, cut the drain tube at the A pillar, pulled the bottom half of the tube up into the cabin and cut off the elbow, pushed the tube back down and then pulled it through from the outside into the vent area, then spliced in 6" at the A pillar using quick connect tube joiners. I don't think this affects the issue I'm posting about but wanted to include the details.

 

That tray overflows easily as its only meant to handle water that gets past the seal , this also happens if the rear drains are full and the tray cant handle the volume of water it needs to get rid of.

 

that is a genuine relief to hear. Thank you!