Quote:
Originally Posted by Brian-bmw
I have not seen a step-by-step retrofit guide to install a TCU in a European X3. However, if you found instructions to install a ULF, you can follow those for the TCU. The installation is essentially identical, except you do not need to install the eject box for the TCU.
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well fact is that we have in the italian BMWpassion forum a guide to install the TCU and it is pretty simple. You need some cable, connectors and a TCU..off course. The you add some pins to the radio module connector and hopefully it will work... But I am not sure if the connection schematic is the same as for the TCU.