Check out this link!!!
http://www.bentleypublishers.com/product.htm?code=be24
Description:
BMW 628CSi - M6: 1975-1989 Repair Manual on CD-ROM
This bilingual (German/English) BMW service manual on CD-ROM contains the repair information provided by BMW to their factory-trained technicians, making it an invaluable resource for the BMW 628CSi - M6 owner. It provides clear and complete step-by-step procedures to help you understand, care for, and repair your BMW 628CSi - M6. Wiring diagrams and original German language tech bulletins are also included in this BMW manual.
Models included in this BMW repair manual:
BMW 628CSi
BMW 630CS
BMW 630CSi
BMW 633CSi
BMW 635CSi
BMW M6
Robert Bentley Publishing is a great company! No, I don't work for 'em, but I've trusted their books for a while. They've written the best VW repair manuals I've used... They actually author the VW dealer's repair manuals, if that gives you some idea of their reputation.
They didn't write this one--it's from BMW (as told above).
I ordered mine on Friday (July 29 2004), and as of today I don't have it in my hands yet--but when I do I'll give you my humble take on its' thoroughness and quality.
Robert Bentley's website was actin' funky on Friday, so I had to order by phone. They've got a toll-free number 1-800-423-4595
___Tklop