THANKS.
trying to work on one issue at a time but they all can be related.
My rail does NOT hold pressure, within 5 min its almost down to zero with eng. not running. Engine running pressure holds where it should. I changed fuel filter twice and new fuel pump to correct this. I also had the fuel rail/injectors sitting on a towel turning pump on, on/off, let sit and never saw a drop of gas. My car starts perfect on a cold start, prefect on a hot start, but stumbles to start on a warm (sitting an hour after a long run) start. I have changed the duel temp sensor and the temp sensor at the radiator with no change.
My motto - some guys play golf, I play mechanic!

THANKS for all the input.

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2004, X5, 3.0, 202k+