Hmm, so maybe I've got it.
Mine has flyingbrick on every page, with permission from BMW. In intro says based on org BMW repair manual. Seems like too much weirdness in it to be a factory manual. For example the electrical chapter, 61, page 2 and 4 are missing (I spose blank) and the relays are marked wrong (5,6 and7)
Lots of other weird stuff. Dunno.