Help please i have a insignia 09 cdti Sri I let out my clutch while starting the car by accident which caused my car not to start for a few hours it seemed like my battery died but that wasn't the case When i start my car I turn it over and the engine goes off then I have to turn it over...

This evening I returned home from the main dealer with a £2100 bill to repair my 59 reg Sri CdTi. Tuesday evening last week I was driving home and got a warning `engine hot`, true enough the gauge was at full and as I was on a motorway I stopped 100 yds later (engine shut itself off) and towed...