I've just started working on my 1987 190D 2.5 non-turbo and from the get-go it did not want to shut off. Even when I first brought it home it would not turn off, so I called the seller and he said just stomp on the pedal after you turn off the key. That worked for a while, but now it won't shut off unless I take the air cleaner off and smother it with my hand. I bought a fuel shut off solenoid from euro parts direct that is vacuum, but it looks mine might be electronic. Is it located on the back of the fuel injection pump and could mine be electric instead of vacuum. Thats my guess, but I've never had a diesel before and I might be looking at the wrong part. I'm getting ready to produce some bio-diesel, so to be able to make my own fuel for $1.25 a gallon and get 33MPG is pretty hard to beat. I'm gtetting ready to put a hitch on the 190 and tow my boat this summer to Lake Powel, 600 miles round trip for about $20 in fuel. Now if I could convert my 85HP outboard to diesel! It will cost me $20 in gas just to get out of the harbor!
thanks in advance, hushpuppy

I did a little more surfing on the problem and found the shut off lever. Works great and I can live with that! There was discussion on the vacuum shutoff on the back of the distributor. Mine has electric to it and when disconnected it barely runs so it is doing something. Are there electrical fuel shut offs on some of these cars or am I looking in the wrong place? I've only seen the vacuum one listed. thanks again