it has a radiator. see that big thing that sits in front of the AC radiator, that,s the radiator for the coolant. the reservoir is a recovery unit that sits close to the radiator.
The plastic tank is for expansion and contraction for the antifreeze. The radiator goes across the inside of the grill. There is a cap on it that you push down on and turn to get it off. Don't remove it when the engine is hot. This is where you should have put treatment.
the antifreeze tank is where you add coolant but if you follow the hose from THAT tank, you'll find the actual radiator (the radiator pulls needed coolant from THAT tank when it needs it).
