Engine ECU compatibility

The following chart shows the various Bosch Motronic 4.3 ECUs fitted to the 850 T5, T-5R, and 850R, and their compatibility between the models. This information was openly available on the Turbo-Tuner website many years ago, but that company ceased trading and their website disappeared. I'm reproducing the info here - purely for interest as I have no way of verifying that it is correct! Caveat Emptor!