What's up everybody, I remember reading a post earlier about a rotten egg smell people were getting inside the car when they turned on the air conditioning or the heat. My mom who drives the car on a day to day basis is experiencing the same problem. I don't know what it is or if we should take it back to the dealer. Our family recently purchased the Altima about a month ago and I'm not sure if the factory warranty will take care of the problem. Any suggestions to what it is or how to fix it is much appreciated. Thanks again you guys, this forum is very helpfull by the way, very interesting reading. By the way we have a silver 2.5S w/ conv. package with charcoal interior. Bought it for 19,200.