Thanks Trevor, I'll keep an eye on it as it's still under warranty, if it does it again I'll take it back to have it checked out. So far it hasn't done it again, just thought it was because the car had stood idle for a couple of days might have had something to do with it. Owning a diesel is all new to me so it's getting used to all the ' quirks ' the engine makes. Thanks for replying, much appreciated.
Jamie