My 1994 E200 - has had a idling and start problem for last few months, the car would not stay running until the engine was warm and the idle RPM was 1200. It was getting to the point that I was thinking of scrapping car as the ICU and ECU replacements would cost a fortune, and from all the infomation I had (including internet, garages and other manuals) the Icu and ECU had to be the problem. Saw this book ordered it to give the car one last chance.
The manual has detail on how the ignition system should be set up, my ignition setup was wrong, I reset it as the book describes, took about 15minutes. The car started first time, and idled smoothly at 900RPM which dropped to 750RPM when the engine warmed.
I am very happy with the book , it has detail and guidence presented in an understandable and clear way and the level of detail is more appropiate than I have found elsewhere, and it saved my car from the scrap yard.