The dealer never told me the production date or manufacturer of the radiator. I am really getting frustrated with this now...LOL I also think it is two seperate problems but the shifting problem is my biggest concern. I also forgot to add that sometimes after the T.C. issue the car gets rather sluggish till it gets to the next gear. I was told by the dealer that changing over to "winter" mode would resolve the problem. I had to request a tranny service. So I feel there is a little bit of incompetence with the dealer.