my 300 E 1987 will start when cold and runs and never stall but whEN YOU STOP AND TURN ENGINE OFF, IT WILL NOT SART AGAIN TILL ITS COLD
STARTS QUICK WHEN COLD AND RUNS AND NEVER STALLS BUT WHEN YOU
STOP AND TURN ENGINE OFF IT WILL NOT START AGAIN TILL ITS COLD LIKE !5
Sounds like the fuel pressure regulator. Also, try holding the throttle pedal 50% down and then crank the engine.