Caymancactus

Hi I think I have big problems with my cayman. I have the following fault codes P0711 P17F0 which I know is transmission overheating. Then P17F1 P1F72 and 40146 40155 40418. My side shop says I need a whole new pdk. The emergency transmission came on white and red then sport mode failure. Any help appreciated is porsche gonna pay for any of this bill? Im going to pick up the car from my side shop and tow it to porsche dealer. My car is a 2011 cayman s with 32,500 miles this shouldnt be happening I just bought this car june 2016 and only put 6500 miles on it myself. This happen to anyone else ? How much is a new trans ? How much is a remanufactured trans? Am I screwed or what? Thanks for any help