Not a silly question at all, but not yet, have the fluid, and have to go buy one of those 14mm hex drivers to do the drain etc. I wanted to have me ducks in a row before I had a crack at it. I did the seals and trans fluid on the mechatronic last year which sorted the shifting, now need to do this, probably should have done the whole lot at the same time...I thought the code may have gone after I did the plastic gear, but nup, seems like the oil wear is the next thing. But to do that, I need to do a reset of the TC. I downloaded ISTA and INPA just not confident of using either of them.