Have noticed in last few days that car started "chugging" when accelerating between 1500 - 2000 rpm. Seems not to have any pulling power for a few seconds and the chugging sounds almost rotational - dunno how else to describe it. Took it to service and they say that diagnostic shows no faults in engine and mechanic says no mechanical probs visible. They claim it is bad fuel and will probably have to remove tank and clean it out. This fuel issue is quite specific to eastern europe ( diesel which barely makes the "eurodiesel" rating of less than 300ppm of sulphur). Would appreciate some suggestions. RRS TDV6 (gone)
RRS TDV8 HSE(gone, burned out)
ML 320 CDI Airmatic

guess it's the dirty fuel, since the point of good fuel is to have a smooth acceleration. or the turbo is sucking in small kids and other household animals when you really get it going  RRS SC Bonatti Grey