I have a antifreeze leak in the back passinger side of my engine bay and I took it into the shop and they say there is no leak. I told the guy there is a antifreeze smell in the car and that the car has a leak cause when I move the car theres a spot of antifreeze the size of a roll of duct tape on the ground in that area. The guy comes out and says its the heater core could that be right? From what I have found is that if its usually the heater core it leaks in the car right? Any help is apreceated. By the way this is my first z and I am really excited about it :-)