Got into my car (Astra 2.0 CDTI Auto) to drive to the shop on my lunch, when I turn the car on nitove the AC fans went to full blast like I'd pressed the auto button, but I hadn't. I drove up the steepish hill out of my work exit, pulled out the junction and the engine just died, no power loss dials etc were still on but the engine just stopped, and Serveic vehicle soon message appeared on the dash. I know this generally indicates a fault, so I turned the ignition off and back on the car started