Is there anyone out there ever experienced the odd phenomenon of ' cut out' . My DS4 1.6 Hdi has 91000 on the clock and for the last 10 months every 3 to 4 times after standing about 1 hour will start and then after 15 seconds cut out. It will refuse to start for a few minutes. Had new battery and fuel pump, renewed battery on key. No warning lights to show on dash. AA checked it out with diagnostics without finding a fault. Local mechanic baffled too. Thanks.