As explained in your owners manual...
There is only one tow bar, one goose neck and ball for Mondeo (well one for sedan/wagon and one for hatch) but makes no difference to towing. Regardless of which tow bar, unless you have trailer brakes, the max you can tow is 750 kgs. With trailer brakes 1200 kgs, then if you add the load leveling kit you can tow 1600 kgs. its explained on page 158-159 of the owners manual.
MC Mondeo Towing.JPG