what should be the average temperature for a caddie because my car reads 208 degrees?

Possibly your heater core has a slight leak if your smelling coolant inside the car, but the only way to make sure is to have a repair shop pressure test the system. you can find a shop here www,repairpal.com/directory

I just took mine in yesterday for the same concern and they said that norm for this car in 200-220. They also did a pressure test and it came up clean

I thought the same thing but, answer two is rite....200-220 is normal running temp. Mine has never gone past 217 but thats mine. The car has a sensore that lights up in your information panel after and IF it hits temps to high for the car. no worries.