I have the Mercedes Benz Service Cd for my 89 300 CE and other models in the class. It's a bit of a pain to "work through" quickly.

I'm thinking about picking up the "Bible". How detailed is the service info in it? Is there info on checking systems like sensors, etc.? Any wiring diagrams, Vacuum Diagrams etc.? It's seems like everytime I buy a "service manual", It's just not quite enough info to be truly useful.

Thanks