How long has the ECU update been a part of the recall? I had my coilpacks changed last year , will they have done the ECU then or will it need doing this year? I didn't ask to get mine done , my dealer told me about it and booked it in to be done without me asking. I remember the MPG seemed poorer on the MFA for a few weeks afterwards , would this be because they wiped the memory while the battery was off?