I found mappack for this ECU 4B0907551D 512KB from 8D0907551C 512KB. Mappack is not big but maps like LDRXN, LAMFA, TVUB, KRKTE, KVB, KFMIRL, KFMIOP, KFZW, KFZW2 are included and others, also upload file.
Is it worth changing ECU to 8D0907551M?
Regards
radzio3747