I have a 2004 Audi A3 1.6.. Engine ECU (part no. 03C906056AP/0261S02057) is staying live after ignition off so is draining the battery.
I sent the unit to ECU testing who after a week said they could find no fault.
I then called ECU Repairs who said that particular part cant be fixed or data transferred.
I found a refurb part at Euro parts who reckon they can transfer the data from mine on to a replacent part for around £440 all in.
Or, Audi can re code a replacement part if I manage to pick one up cheap and take a punt on it being ok.
So, much conflicting info.. can anyone advise whats best to do?