My father just called, pretty distraught. He took his Skoda Yeti to the local Halfords and paid 15 quid for the battery replacement service (normally the kind of thing I would do if it wasn't an emergency). They connected the terminals round the wrong way, and now none of the electrics are working. Car starts, no lights/power steering/washers etc. Sounds to me like they fried the ECU, but could it be a fuse(s)? They are refusing to admit responsibility, he has a receipt with the service listed on it. He hasn't budged, its been 3 hours of them trying to fob him off now. Idiots.