Yeah it's a bit nerve racking letting someone play around with your motor. He should be able to see if/what map is on it by scanning the ECU I'm sure or via VCDS.
Niki did this on mine and was able to basically see everything what was going on including how many times the ECU had been flashed etc.
Again try not to worry mate just ask him all the questions you want answers to before he does anything and once your happy go from there.
Niki did this on mine and was able to basically see everything what was going on including how many times the ECU had been flashed etc.
Again try not to worry mate just ask him all the questions you want answers to before he does anything and once your happy go from there.