Also note that there's been bad fuel going around the last three months, which smokes white!!! Try adding some cetene booster (gray bottle) to your tank and see if that also helps. When I was in Fargo, ND, I noticed that the battery was going down and acting the same way . . . a hesitation before it kicks in the amps needed.

__________________
1983 300D, the "Avocado"
1976 240D, 4-spd the "Pumpkin", SOLD to Pierre
1984 190D, 2.2L, 5-spd, my intro to MBZ diesels, crashed into in 2002