I am looking for suggestions on BMW & MINI Coding Apps. I have a 2017 Cooper S and I need to replace the 12v battery. I hear this involves some coding to get things right. I'll also be adding a new set of wheels and TPMS sensors if it is needed for that. The ability to peek inside the ECU and customize things has my interest as well. I looks into this briefly before picking up the car, but this is the first time I've needed it for anything.