I'm new to this forum but I figured I can help since I refuse to take it to the dealership who charges a ton to fix nothing.
Trunk and passenger foot well leak -
I found many and probably wont find them if your not looking. The tail light gasket is the easy one but will cost the most since you will replace tail light. Hyundai keeps those in stock. The issue to due to a Vein pass in gasket that allow water to pass thru as a stream or at least on mine. Had to really look for that reason.
Also once you gut the trunk, you will find 1 seam in each fender well. I just use silicone caulking on those (Top to bottom).
Last is the hard one is the trunk itself. It leaks but the cloth cover in front does a great job of absorbing it. It's either bad trunk seal, bad spoiler gasket or bad seal on spoiler light gasket. IF you don't have a spoiler, LUCKY! SO far I've swapped out spoiler gasket. About $30 each, and sad when you see what you spent your money on. Cheap and I wish I had made my own.
The passage foot well was a pain. Lots of trial and error just to figure out that the Hyundai mechanic with photos on page 6 was right. Problem is, no real explanation.
I can explain it simple. Remove cowl and fender & buy silicone caulking. Don't remove deflector plate in front of fresh air intake vent cause you will break your windshield. Socket and wrenches are no help. Instead, get 2 flat head screwdrivers. Put the silicone on the end and smear it on these seam and opening behind seam to make a silicone wall of some sort. Head at fender and hand at cowl. You got to see what your doing. It seems like their are 3 vent to the a/c for fresh air but only 1 leaks
Sorry for the rant but I love this car but hate the BULL!
Mine had water in the trunk. I used Black Thermoplastic Caulking above both my tail lights and 2 little spots at the top left and right corners of where the trunk sits when closed. You can hardly tell I put it there and my trunk has been dry ever since.I heard it was the tail lights? hmm.. idk.. I just know it is coming from the left side
Update:I just found a leak like Obyone's. Right behind the drivers seat. Unfortunately it's between 10-20 degrees outside and the pool behind my seat is frozen over. I'll be taking her into the dealership this week and I'll post what they say. According to you guys it should be the welds. Lets see what the come up with.
5 minutes later:
Just checked the trunk and found an inch of ice under the spare.Did any one get this repaired under warranty?
Check the trunk. If the tail lights are leaking badly enough or depending on how the car is parked, the water could be making its way under the back seat cushion and onto the floor behind the front seats.I took mine in after finding a 1/2" of water behind the driver's seat. The dealer said I should keep my windows up. I told them wrong answer. That day another GC came in with the same problem but much worse. Then they blue out the drain lines from the sunroof and adjusted the rails. It's been good for about a year and now is leaking again. I'm pretty sure Hyundai is very familiar with this problem, but refuses to issue service bulletins, recalls, etc. I'm getting very upset having to vacuum the water out of my car.
Sounds like tail light gaskets. The water gets past the tail lights into the trunk and depending on how the car is sitting it can flow forward into the seat area. The gaskets are covered for 5 years 60k miles but they're cheap and easy to replace if you want to do it yourself.This weekend (weather permitting) i may strip the interior liner of the trunk and try and find the source of the water in the backseat.
could you elaborate on this some more? a little confused.Your drain tubes for the sunroof...pull out the jack I bet there is water in that tub. Can only be accessed if the jack and plastic is removed
Thank you for posting this.... I've dealt with water issues with my 3.8 Track since I bought it... first was the defective taillights, allowing water into the trunk that leaked into the back floorboards of my car. My entire driver side tail light was condensating. Needless to say, the dealership wanted to replace them with new stock taillights... my question to them was, "What is to prevent this from happening again?" to which they could not answer. So I fixed them myself, and I haven't had a problem with water since (in the car, or the tail light condensating). All it took was a good seal to prevent that water from coming in.I just bought a white Genesis Coupe 3.8 Track about 2 months ago and i love it, but there's one design problem, water leaks in on the passenger side foot well. The first time i noticed this was after we had a pretty good rainstorm and there was about a cup of water on my passenger side floor mat(they're rubber mats so i could see it). And I didn't think much of it but i would keep an eye on it. After our latest storm i could obviously tell water was dripping in. So i immediately took it to the dealership where i bought the car where they could check it out. They ran it through the car wash 3 times and it never leaked, but when they put water hose on the windshield so the water could run down into the area where the fresh air for the a/c is taken in and it leaked. The fresh air intake for the a/c is located at the base of the windshield area. If you open the hood and look at the back of the engine compartment you'll see a rubber seal that seals the rear of the hood and directly behind that seal in the middle of the car are about 20 or 30 little holes, and that is where your fresh air is being taken in. Now the area around this intake does not adequately drain water, which leads to a back up of the water and causes the leaking to occur(the leak only occurs when the car is parked, not moving). People with carpet mats probably dont notice this because the water is a limited amount, but its still water coming into your car. Hyundai said that they had no fix to this problem yet, but it's a factory defect and they need to come up with one soon. Keep your eyes out for water guys!
Pull off the quarter panel trim. You'll see the sunroof drain behind that. It's a thick black plastic tube.So this happened the other day, first time ever. Still think it could be that sunroof drain? Still having trouble finding it