I'm a new member and I have a completely stock 07 Titian Se, CC, 4WD with 2000 odd miles on it. Every now and then I get a coolant smell that I pick up as soon as I open my door. All gauges are all within normal limits (including temps). When the smell occurs the coolant is circulating throught the over-flow tank. I can see it running down the side and it actually has the tank stained green. I have owned a few vehicles in my time and traded an 02 Frontier w/80,000 mi, which I bought new, and have never really seen the coolant circulate like that (maybe I never had the need to look). I took it to my dealer who told me that it is normal. They told me they pressure tested it and found no leaks or problems. I find it hard to believe that Nissan would manufacture a vehicle that would give off a smell of coolant. I did have a few problems with that particular dealer in the past with my Frontier because my service manager had a Frontier and would always say, "well mine does that too". I just don't think this is normal and wanted some thoughts. Thanks.