We found out from our free workshop that the transmission control unit is defective. Something has burned through it. I was advised to look for a used control unit in order to keep the repair costs within the frame. However, a whole series of numbers are printed on the photo of the defective control unit (see appendix). It is unclear to me according to which number series it is possible whether the replacement fits. Printed are S118475202 E SW96594996 80 HW9640922780 To the last “HW number” you will find used ECUs, but the other numbers do not fit or not quite fit. To the “S118475202 E” I have found a device with almost identical number (at the end a 1 instead of the 2) but with other letters at the end. For me everything is extremely confusing. Maybe one of you knows which number is decisive and how exactly these must match. I am grateful for every tip. Is the car my cousin, money for a There’s no new car purchase available…