W115

On my 74 240d there is a red cap on the injecter pump. When i unscrewed this cap it appears that there is room for oil in there. Is there supposed to be oil in the pump and if so what kind of oil?? Is it bad to drive it without oil? It runs like a top so I'm kind of curious about this. Thanks

Hi- my 240d (manual transmission) has occasional fits of very poor acceleration. I can run 70mph easily on the highway, but at times when I move away from a stop sign, or start out up a hill, I can barely get the car to move away from a stop. I changed the pre -filter and main filter elements under the hood, have not changed the filter in the tank yet. Also, at times, maybe 5 to 10 seconds after startup, the engine will stall, even with the idle adjuster speed high. When this happens it seems I have to give additional throttle more than usual to increase engine speed.

hello out there. I'm trying to troubleshoot a smoke problems with my 1973 220d. The main problem is that I don't know what to expect from these cars. After installing the updated glow plug system, one rocker arm/shaft assembly, and removing the injectors to check them out, the car runs great and steady. At idle, the smoke is not bad at all, but if I goose the throttle, black smoke billows. It puffs smoke pretty good when accelerating and under load. From what I have read, this could be the vacuum pump or fi pump diaphragm. I had the back off of the pump and the diaphragm "looked" good.