Well my name is jayce.. I have a 1993 w124 300d. Shes a tank. This site popped up when I rendomly typed in a problem in a google search, and to my surprise answered my question. I had a problem stemming from my overload relay. I replaced that lil thing and boom rpm's runnin hot, idle smooth, and I actually move when I step on the gas.. It was a great day!, Anyway just sayin hello, and thanks.