Originally Posted by Bruno_300TE

Hi
Did the tach go to zero when the engine cut off? This would be diagnostic of the crank shaft position sensor. Removing the sensor from the crankcase has been one of my worst jobs soo far. It was kind of bonded in place.
In case the MAS has a problem, check the fuel pumps too. They might draw too much current on their way out and could damage a new MAS too.
I bet it is the crank shaft position sensor though.
I know what you mean by getting no sympathy when standing in the middle lane with a dead Mercedes...
Good luck, Bruno