Hi, I'm experiencing exactly the same problem with my 3.0Hdi V6 Tourer for years. I don't think it's getting worse though. It hesitates in low rev, around 1500rpm at most at low power, usually when I drive the city speeds. When you are at stable rpm and then slightly push the pedal down to accelerate, it hesitates, sort of tugs once or few times, like it completely losts power for a fraction of a second. It happens only when the outside temperate is as mentioned higher, around 20 degrees. There's no sign of anything wrong in diagnostics. Recently let all injectors tested and cleaned, replaced 3, nothing has changed. I'm starting to believe it might be a software problem (I have the latest 2011 update). dflflack - did you have any success fixing this issue? PS: excuse my bad english