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Originally Posted by mgruber
Hey Jose-
You think you are confused! Get this, my TCU/Assist module part number isn't even in the BMW ETK ! And I can't find it on Realoem. So basically I have no idea about install dates. The sticker on it says Motorola and the build date is 6/12/2004.
You mentioned that yours is RFMD, which is a remanufactured part, but what I don't get is that I read somewhere in a BMW TIS bulletin that the TCU/Assist modules could not be reprogrammed and had to be replaced outright. So at least it appears that they can be remanufactured and recoded since that seems what BMW is doing.
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Yes, the TCU's were always able to be reflashed with newer firmware, however they had to go back to the supplier (Motorola) for this to be done. It was not possible to do this in the field or at the dealer.
For newer MOST based cars, flashing the firmware in the field is possible.
With regards to your 6/12/2004 TCU ... this falls under the period when BMW were only installing Assist units without Bluetooth. I know there maybe a BT sticker on the TCU itself, or even a passcode ... but its disabled.
Now a question to Jose. With this new TCU, it doesn't give you SMS does it ... or is that still disabled?