Nissan Altima Problem Report
Nissan Altima Sunroof drain leak caused by pinched drain line at firewall
I bought car used 6 weeks ago. After heavy rains I came out and found standing water on the drivers floor mat( I have the hard duratech mats) Water was dripping from the dash and A pillar. The headliner was soaked at the top of the A pillar. I recognized it as a sunroof leak. I researched online and found numerous complaints with dealer denials of an issue. I also found the following helpful advice. The sunroof drain is a clear plastic tube that runs from the front corner drains of the sunroof. Through the A pillar and down under the dash to the firewall (above E brake Pedal). There the tube slides over a nipple that drains into the wheelwell. Just before the firewall the tube turns about 90 degrees, it is at this turn that the tube pinches. I found that the water backs up into the sunroof. Since the connections between tube and nipples arent clamped or sealed any standing water will leak out. One solution is to take a metal tube and form a 45 bend, insert it into the tube to prevent kinking and reattach at firewall nipple. I have also considered using a more rigid tube. The real solution would be for the firewall nipple to have a 45 bend to reduce kink. I am not sure but I believe there may be a similar issue with passenger drain but I have not verified this. - grump71
After rain, I came out and noticed that the front passenger door from is soaked. the next came and it rain was coming down the passenger side front seat belt. - Visitor
I have same issue with my 07 altima except i havent noticed it on the driver mat, just down the A-Pillar. I will look for this tube and see if that is my problem too. Thanks for the advice! - Visitor
I'm having the exact same problem as the 1st customer with the water pouring from under my dash and onto my driver side mat. It is fully soaked now since the rain started last night and continues today. The leak is not a drip it is actually pouring out. I did go back to CarMax this morning to get them to look at and because I purchased my car on October 6, 2013 and now that I just recently passed my 30 day warranty. They have to refer me to a specialist. which will cost me $100 just for him to look at it and not sure what the cost will be just to fix the problem. Thanks, Michael - Visitor
After heavy rains, I sometimes find the driver's seat soaked and the fabric of the pillar between the windshield and the driver's door extremely wet to the touch. This is only on the driver's side. I first noticed it shortly after I bought the car (used) at 22k. I've maybe experienced it half a dozen times since then and the car is now at 39k. I initially took it back to the dealer - "no issue found", but they dried it out. Then it happened again and I took it somewhere more reputable (don't go to CarSense for service!) - my mechanic told me the sunroof drain was blocked and he unblocked it. Next time it happened, I just soaked up the water and it was fine for a few months. I did talk to a Nissan dealership, who of course denied it was a problem inherent in the design. Wish there was something more permanent I could do about this. My other 2011 Altima with no sunroof has never had such an issue. - Visitor
Only my leaks are on the passenger side of the car and get the front and rear floors wet. - Visitor
Water in the driver's floor unknown cause , I will try the sunroof drain first - Visitor
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