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Originally Posted by Xenon-Jensen
After some more testing, I can add, that it seems that all communication between the instrument cluster and the board monitor is missing ?
(the boardmonitor doesn't show outdoor temp, remaining fuel etc.)
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You have no ibus data connection from the nav / audio system to the rest of the car.
If you fitted the retrofit loom, check your ibus connection.
Alternatively, if you connected everything properly, did you recode the car so that it knows you now have navigation fitted? If the car does not know the nav is fitted, it will not send the right data down the databus, and it will not listen for the right commands (like 'change the time').
Go to a BMW dealer, and recode using their software. They need togo down the 'retrofit' path in their diaagnostic software
Jochen