I would have said 'owner's manual' but this may be a little more, thus 'documentation'

There's room for everything it!

Ok the log book is in a folder, together with the operator's manual, however, the important thing is not that it's in a folder but that that folder contains the log book.

When I bought my last car here in Australia, ok it's not the UK or the US, but we're speaking English here, too, the folder with the log book was missing. However, what the salesperson was saying was that the log book was missing not any old folder with a funny name.

In English, it seems, that it's not as important what the container of something is called, but rather what it contains. That may be different in
Germany, however, the sentence could easily refer to the "Logbuch" and the meaning would still be the same (m.E. - that's German).