Hicky
Guru
7 or 8 years ago we had to scrap a Peugeot due to a fault in the electrics that couldn't be traced, absolutely nothing wrong mechanically with the car, we had recently fitted a new exhaust and tyres for an mot and then a couple of weeks later it would go into limp mode for no reason, which wasn't much fun when it would happen while over taking, it would literally go from 60 to 25/30 without warning. We had various mobile electronic specialists look at it and even took it to a Peugeot main dealer, no one could pinpoint the fault, we did start to replace parts that might be causing the issue, but soon realised that we could end up spending way more than the car was worth, so it ended up sitting on the yard for a few months while I sold parts off of it, Electronics are ok while they work, but they are still the weak link in modern vehicles. I don't know if it happens in cars yet but if contractors/farmers don't keep up with payments on their tractor/plant purchases, the dealer can immobilise the vehicles from the safety of their office.
We did the same with the Ms Clio she loved and adored…the fault, you could go out to the car and it would either start perfectly or nothing…not a thing, not even a relay activating…nothing.
Come back to it 2mins later and perfect again. Three garages later and none had a clue so off it went sadly which was a pity as it was in fantastic condition!