1980-85
I'm sorry I don't know how to "post it correctly"
The manuals were mine and occasionally used for performing
routine maintainence.

Below is the entire link/

http://cgi.ebay.com/ebaymotors/MERCEDES-BENZ-SERVICE-MANUALS-126-SERIES-CHASSIS-BODY_W0QQcmdZViewItemQQcategoryZ34227QQitemZ8036981559QQrdZ1

A search for 126 manuals will find them.