Hi, just a heads up on system and software for the Motronic ecu.

I use the same system as TVT to remap the crossfire and MB cars in the UK.
The equipment used is from Germany and called Optican. Yes it can be purchased but it aint cheap im afraid.
Cost wise in the US you wont get much change from $10,000 including laptop then you will have to find a tuner to get your files from.

Crossfires dont all share the same ecu software so an ecu file from one car will not work on another crossfire and you will need the optican to read and tell you what software your particular car is using.

please dont get fooled by the cheap ebay units found on the net THEY WONT WORK AND WILL DESTROY YOUR ECU!!

Just my 2 cents

Steve