C5 2.0.Hdi occaisionally just stops.

[Stickyfinger]

just your symptoms are exactly the same as mine were.

I am convinced that water gets up there as spray if no under-shield is fitted

Did yours only fail going down hill?

Yep, no pick up and died..............Phil Hunt was stumped, he made a call to a "mate" and said try it, I did, no trouble since.....however typical Citroen it may be total co-incidence.