Here is the clue to program VW Jetta 2013/14 TSI ECU MED 17.5.20 to the car when old ECU got water damaged.
Solution:
One of our customer did a bench using the Autel IM608 Gbox to get the CS and PIN of new ECU, Then went to plugged the new ECU to the car and programmed it, IMMO, -VW, – EXPERT – ENGINE – ECM REPLACEMENT, followed the machine, but then he bought new transponders MEGAMOS 48 and basically learned new keys, like I said I was trying everything but this worked, It worked for me.