johns E350
Active Member
My E350 goes in for a service next Saturday at M-B Northampton. I don't want them to know it has been re mapped as it is still on a PCP. This may sound stupid but will they do anything that would wipe the remap. The car is over 3 years old so don't think there would be any updates for the ECU. Or would I be wise to tell them so they don't touch it ???