I think he is looking for a repair manual for the W126 that is on a CD-rom.
If thats the case, you can get them right here on Fastlane.
84 500SEL EURO 101K ( JUST LIKE MY 1ST WIFE. GLAD TO GET RID OF HER! )
85 300D 310K (sold)
90 350SDL 184K sold
83 300D 118K (sold)
88 300E 153k (sold)
93 400E 105K (sold)