I was talking to the mech at the dealership the other day about this but got no good answer. Sometimes I can smell antifreeze but there are no leaks and it always runs cool. He (mech) said they had other reports with the same problem but never found anything, some kind of venting issue? Anyone else ran into this?
Same here a few months ago in my 05. Turns out my radiator cap was leaking a bit ( splatter stains on the hose and engine cover). Just went and got a new one, about 13-14 bucks.