[rainbowzootsuit]

No idea if it's "authorized" or not but https://www.realoem.com has an electronic parts catalogs that seems to cover all of their models.

[megamix]

Yeah I wonder how they created/sourced that info

[zeusk]

INPA, ISTA, TIS, ETK, E-Sys are factory software from BMW.

[robingchan]

i looked into this a little bit - you’ll notice on realoem the catalogue is only 2019. I think this is also around the time BMW made the TIS system update and also knocked off newtis. ETK is the name of the parts catalogue pricing data iirc. I have the db, uses transbase.