hello All !
are u guys talking about the cd1 and cd2 for the w124.
I found a site where you can download in pdf files everything you need from engine work to many other options for free.
check it out and let me know if this is what you're talking about ,
if not I guess i will have to pay attention and see what you guys are talking about.
http://mb.auto.pl/component/option,com_wrapper/Itemid,62/
disc 1
http://mb.auto.pl/component/option,com_wrapper/Itemid,65/
disc 2