The manual turned out to be the WIS manual, thatÃ¢â‚¬â„¢s what the dealer used to make quotes, order parts, and fix cars.
There is information in this manual on how to fix 190Es all the way to Mclarens SLRs!!!!
User manual wise, it's that book you get when you buy the car.
Here you can download user manual from my server for free for any W140 model/year
now, difference between shop manual and service manual, I am not sure, but here, you never ask an Arabian and get no answer, so here, I ll make some stuff up. I think user manual is something like Haynes manual, something written toward end user in plain language to fix cars. While shop manual is a little bit more professional because itÃ¢â‚¬â„¢s written for mechanics.
Keeping in mind, with some basic knowledge and common sense, you would be able to find your way through in a shop manual. So itÃ¢â‚¬â„¢s not that hard. If I can do it, you can do it.