Basically my car suddenly stopped working, if you go to fire it it cranks and does a very short burst as though it's about to fire but cuts out, I've had a few mechanics on it but none could find the problem, it's been in vw all week and they've finally put it down to the ecu, if you programme the immo to the ecu it will start but come back to it 5 minutes later and it will have forgotten it and need programming again, What I'm wondering is whether I could get a donor car which I've already sourced at a breakers, take the ecu, immo, transponder chips out of it and put them in mine and it just work with no programming needed and if will I need anything else aswell? Vw want £700-800 for the part and fitting which I can't afford expecially on top of the £300 I owe them for diagnostics Any help is much appreciated!