Your 126 IS covered by the CD shop manuals. The first link is to the W126 overview, the second link is to the PartsShop where they sell the CD's.
Which model specifically are you talking about? According to the overview the CD's cover the 10 year run of 126's 1981-1991.
Hope these help in your quest.
[Edited by MikeTangas on 05-08-2001 at 01:11 AM]
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.