Prior to purchasing a 240d (1983), I have owned Volkswagens almost exclusively, along with a couple Volvos. For the Volkswagens, there is the Bentley manual. These manuals are superb in terms of troubleshooting and diagnostics. For the 240d, I can find next to nothing on terms of diagnostics and troubleshooting. The Haynes manual is almost laughable and the FSM is well, the FSM.
I value the the various online discussion forums, but would really like to find a clear, concise compendium of troubleshooting regarding these cars
I want to know if anyone has purchased :
Mercedes Diesel Engine Advanced Fault Diagnostic Manual by Kent Bergsma

And if so is it well thought out and well written?
It seems he has several mini-manuals regarding different car systems and this is a collection of those.