I am starting to smell coolant when I drive my malibu, like I have a leak but the coolant reservoir is full and I have no indications that I am leaking coolant. The smell usually goes away when I drive a while.
I would not worry. I have a 2001 Sentra and it has smelled like that every other day since 32k miles, now it has over 100k miles. My 2008 FJ Cruiser smells the same way once in a while. I was told it was just the smell of the coolant seeping between the plastic and aluminum parts on the radiator.
That is normal, don't worry. My Sentra had done it since new and its a 2001. My new FJ Cruiser does the same thing only once in a while. I was told it was the smell seeping through where the plastic top meets the aluminum frame.