OK!! Found a solenoid valve on the fire wall of my 300SDL is this THE mono valve I have heard so much about?? Was not in good shape as the large rubber piece was torn. Took the C clip off and removed the lower rubber piece and the screen portion, left the top piece around the edge , thought that it might be a gasket also. Anyway, will this work until a replacement is recieved without causing any problems!! AND is this the mono valve or something else. Had two wires going to a little plug on top.
Also, are front tranny seals an expensive thing to do?? Might have been why the price was right, wondered why the guy was interested in hosing down his garage where it was parked, thought it was from the dog.