Hi thank you for all the replies. The garage has done a full service and said going by the condition it looks like it's never had one before. We've only had it a few months. They think the service could have solved the issue but they've now found a problem with the cylinders; P0202: injector cylinder 2, overcurrent high side P0204: injector cylinder 4, overcurrent high side P0201: injector cylinder 1, overcurrent high side They've told me the service could have solved the issues above as the cylinders were being starved and now they're not so it's a case of driving it and wait and see. If it cuts out again it's a £500 repair so I've everything crossed!! It's driven like a dream since it's service and is starting up without it's juddering noises I was used to so I'm positive - if naively. Thanks again everyone.