i have the same exact problem with my 1996 mystique. it is a terrible smell, and i drive aggressively. its not a very good thing when you are driving a girl or two. they think you farted, and how are you supposed to explain that your car farts once in a while?!?! Are you sure the dealership will replace it for free if under 80,000 miles? I really dont want to show up there, have them fix it, and then it turns out that i owe them money.