Does the online repair manual have all the same info as the printed blue books I have seen for sale or just selected info?
Which one? There's several E9 manuals I have found online. The blue books are the most comprehensive, but I have also found very useful information (part rebuilds, etc) in several other manuals.
The 2 volume blue books. So only the tuneup section is not included?
Sorry, I meant which online manual. Are you talking about the CD from BMW, or the Autobooks manual that was hosted on Devinder's site a while back?
The CD from BMW is, as I understand it, mostly a set of scanned pages from the blue books, with some information missing. It is also apparently quite touchy with regards to system specifications, but they may have fixed that.