As mentioned, our radiator started leaking. So this was replaced by NIRVC under my extended warranty. Good thing I had it, this saved me some $4,000. The only costs to me were shipping and some consumables, totaling some $250.
Also, I have been having problems with my dash air. Inspection showed that the compressor had bad bearings, putting too much load on the system. So this too was replaced under warranty. Again, only costs were for oil and consumables, under $100.