Hi I am having a problem with my mercedes. This is a 2.6 liter version of the m103 and it is in a 1993 190E. The engine is identical to my 300E and I have always had a great response from this board
The head gasket was bad and leaking oil into the coolant. I flushed the radiator three times before putting new coolant into it after the head gasket replacement. The head was tested and cleaned by a foreign car machine shop. The car runs fine but when I try to bleed the system only steam comes out of the bleeder. The thermostat is opening but the system will not circulate, the heater core is bypassed and that hose is empty.
I think the overflow hose will have steam in it I cannot figure out if it is combustion or air? It is spitting bits of oil and I am not sure if its from before, so a chemical test might not be accurate. The temperature does climb to 120 after about 20 minutes, I try not to get it that hot. When I remove the thermostat housing the engine has no coolant in it??? If it is a bad head gasket again wouldn't coolant still circulate?
To anyone that knows anything about this engine and the cooling system any advice would be greatly appreciated.