Hiccup.
All the way to at least 2500rpm on a light throttle, I think I can feel it.
After that I feel it may be there, but I cant feel it.
Its not consistant, like a bad wire or plug or valve.... sometimes it double hiccups inside 2 or 3 seconds... then goes 20 or more secs between misfires.
Again only when hot.

__________________
2009 Mercedes ML320 Bluetec