HI LANTANA,

That means your crossfire is got the EGS52 TCU.
TCU have an Eprom/ flash AMD 29F400BB which is same eprom as your ME2.8 Ecu. So yoy have just to desolder it and burn it with TCU Bin File which I can send it to you by PM, this file is from Mercedes-Benz W211 E 55 AMG Kompressor.
This is what I did to my original TCU, it woks great, you can see it on my videos, it change gear near 7000 rpm.

I noticed, that the cluch of my Kompressor in never on, that mean that the power I have wright now is just with atmospheric engine nearly 376HP.
I have to fix it, can you help me on wiring that stuff, caus you wire well your crossfire :-)
I have to plug the 4 O2 sensors to ECU, to turn off check engine light i always have on dash.

I did not work on the car since months, now I'm back espacially that new RIEGER bodykit and new white color painting is going to be finished (about two months for painting).

You can find attached photos of TCU stuff, hope this share helps you ;-)