[DENTFLEX]

Thank you, but JN51 is for a 530dX G31 pre-LCI, I have a the LCI.

I have checked this. Not possible on your car i think.
Alpina used 8HP75 alltime on 5DS. Your car has 8HP76 transmisson. Other hard and software.

Ow, that's a pity  Thanks man.
I see in Realoem the Alpina B5 G31 LCI uses the 8HP76, but that is the petrol variant. 
You are correct that the Alphina D5 G31 LCI has 8HP75

If you calc TAL with petrol version HWID is the same ? Why don't you proceed with petrol 8HP76?