Im having intermittant starting probs with this Signum. Just 80k miles, recently had some prob with EGR (a good clean sorted it), cleaned out the inlet manifold etc.
I had some initial problems which cleared up great after we drained the fuel tank of something 'dodgy'. Some very dark 'fuel' mixed witha green tinge and vitually black at the bottom?
Anyhow. It takes a lot of cranking sometimes before it eventually starts so the next thing I suspect is maybe the leak off pipes, anyone else had this problem? Or injector seals? Or fuel seeping back to the tank?
Diagnostic shows no faults logged.
Fuel tank was cleaned and fuel filter changed btw