So here's my story.
I have read quite a bit of what can cause my 300te to run perfectly from zero cold to Idle warm up.

-Warm up happens at about 20min and 80 or so degrees.
-Once that warm up happens:

Idle begins to sputter
fuel economy gauge shows deteriorating economy settings
Revs start to fluctuate from 700 down

withing a few minutes more- gets worse and eventually dies. refuses to start.

I let it cool down, bingo -like nothing. until it comes to full running temperature...again.

I've replaced Oxy Sensor, plugs, wires, rotor, cap, coolant temp sensor.

Last night, I followed advice and disconnected the connection shown in the red box- was told this eliminate the automatic fuel injection management.

Still had the same exact problem?

Have the feeling the problem is at my fuel distributor, ICV or Mass Air Sensor.

Any thoughts would be appreciated. I have both the Haynes and E-Class Bible but I don't see anything specific to what's happening to my 300te.

Regards