I've searched the forum and seen a similar issue for a 300D so i assume i have a vacuum leak of some type (or is the 190 different?).
The engine now runs on unless switched off manually by the lever under the inlet manufold -
I had about two days when it only dieselled for a few second but now it's permanent ... and the red battery light come on too).
The door locks / brakes etc all seem to be working fine.... just the fuel shut off.... does this mean the fault is close to the fuel shut off?
Does anyone have a diagnostic rountine for this (i don't have a vacuum guage)?
I can see two vacuum hose .. one entering the back and one entering the top... which one of these is the engine shut off?
One thing ... I had one of the rear doors jam open (those annoying door stays.. and had to 'force' it shut ... that was about the time this stated ... is it possible that's caused the vacuum leak or is the stay a long way from the vacuum line??