I know this is an old post, but I'm also having problems with water in my 2014 Rogue SL AWD.
Except...this is the THIRD water problem I've had since buying the car brand new in June 2014.
First problem was around November 2014. Driver side floor, under driver seat, and rear driver side back floor was all soaked. I took it back to the dealership I purchased it from and they had it for about 30 days. They had one of the Rogue designers from Nissan Corporate come out and help with the problem. They removed and replaced all the carpet, and had stripped my car down to the frame basically. The issue, the FIRST time, was with the 'boot' for the steering column, which had not been installed at the factory.
Everything had seemed fine and good until about a month or two ago, winter 2017/2018.
I had noticed fog on the inside of the windshield (and because of the previous issue I knew there was water somewhere). Because I'm in Michigan, there were mornings where there was actually frost on the inside of my windshield. I was able to take it in for the SECOND time for water issues late February 2018. There was a warm period where my floor wasn't 'frozen' and the carpet was completely soaked. The dealership said the issue was fixed, but they could not find the source of where the water was coming from. They said they ran a hose over my car for about four hours and nothing was coming in, not in a visible place that is. It took days to dry the car out. They said they sealed up some areas under the carpet that could be causing the leak. The problem, however, was/is that the water is seeping UP from the floor. I got my car back last week sometime and everything was dry and appeared fine.
Until today.
I can actually hear the water sloshing around in the floor - whatever the steel thing is on the underside, directly below the driver side is where I believe the water is sitting. Next to this 'basin' area, there is another steel housing unit that has, what looks to be, a pipe/drainage coming out of it (I can see water dripping, sometimes more than a drip, from here as well). I'm not a car expert so I don't know the exact parts, so forgive me. It sounds like A LOT of water, but that could be because its trapped in a small area...I don't know. Anyway, you can pound on the front and rear driver side floor and get water to come up. Under the driver seat is soaked...again. It's like the water is not able to drain properly and just collects. I'm waiting on the same dealership to call me back to make an appointment, for when they have a loaner car available.
Once is too much for a water problem, but THREE problems of the same nature is EXCESSIVE. I don't believe my car would be covered under Michigan's lemon law, because not all of this happened within the first year.
I don't know what, if any, type of recourse there would be, but there is a serious problem with water problems that Nissan is not addressing. Has anyone had any luck contacting Nissan Corporate about water problems, and would it even be worth my time to do so?