What does the pair of radiators cost for a 2003 MINI cooper S? I assume one is for the engine and the other is for the A/C?

 

The second one is called an a/c condenser. I'll bet the dealership can tell you just how much they cost.

 

don't forget that with that second "radiator", that any time the a/c
system is opened, they have to discharge and recover all the refrigerant, replace the receiver/dryer unit, and recharge the system with new
refrigerant/lubricant.
this allways seems to add up to quite a bit more in labor and materials.