Loosing coolant

[Jumba]

Hi I have a 2014 st fiesta and I’m loosing coolant but I have no leaks anywhere my dad pressure tested the coolant system and no leaks whatsoever, so

 

[D1JL]

Dave

 

[amcnally336]

I have a 2014 and the same thing happened to me. I would slowly lose coolant and could smell coolant after driving. I had it pressure tested and it held pressure. Then I had them add some UV dye and drove around for a week. When I went back we found that the radiator was slowly leaking at the top of the seam. I was planning on replacing with a Mountune upgraded radiator anyway.
The other thing you should check is to make sure the cooling system recall work was done. There was a recall on 2014-15 Fiesta St for the cooling system. Go to a dealer and give them your VIN, and they can tell you if the recall was done. Otherwise, I would go the UV dye route.
Good Luck!

 

[XR650R]

Welcome! You can find out if your car was recalled here. https://www.ford.com/support/recalls/