compatible ecu's
 

Hey gang!
Thinking I have a bad ecu.
(Story is under technical help)
From my research, i am believing that ecu's from cls55 cls500 & cls55amg are compatible. The number on the back of my ecu seems to be very rare. 1131530791...
I can only find 1 in Germany for almost 1100 us $.

My question, does anyone know if ecu with number 1131538679 if re flashed with new tune will work on my 2006 cls55 amg...??