About
About this archive
Technical documentation for the BMW E9 and BMW M1, assembled from factory sources, period material, and field work.
The Project
I am building a public technical reference for the BMW E9 coupe series, including the CS, CSi, CSL, and the BMW M1. The goal is to create a structured, easy to follow library for maintenance, restoration, parts research, and ownership.
This project is not a blog or social feed. It is an effort to organize, explain, and preserve technical knowledge for the next generation of classic BMW owners, restorers, and enthusiasts.
Much of the knowledge around these cars exists across factory literature, old parts catalogs, shop notes, owner records, and the experience of specialists who have worked on them for decades. This archive brings that information together while adding original research, explanations, and documentation where gaps exist.
Sources
Work here draws on factory service literature, parts catalogs, period road tests, restoration practice, owner records, forum discussions, and inspection of the cars themselves. Where possible, claims are checked against primary sources and direct observation before they are written up here.
Coverage includes maintenance, systems notes, rust and bodywork, parts reference, buyer's guides, and restoration notes.
Limitations
This archive is an ongoing research and documentation effort. I do not present these articles as final authority, but as carefully prepared technical notes that may evolve as new information, corrections, and firsthand experience become available.
All written content is original. Any diagrams, photographs, or illustrations added to this site will be original, used with permission, or clearly credited.
The information here is intended for study, documentation, and preservation purposes.
About the editor
This archive is maintained by Gianni I. Nunez, an experienced engineer in advanced semiconductor manufacturing and the owner of two BMW 3.0 CS coupes.
My work is rooted in precision, systems thinking, and careful documentation. I bring that same approach to the BMW E9 and BMW M1 archive by gathering source material, comparing factory references, documenting technical details, and organizing information for owners, restorers, specialists, and researchers.
My connection to these cars is both practical and technical. Through E9 ownership, practical maintenance experience, amateur racing, and training under a respected BMW master technician in New York City with more than 50 years of BMW experience, I have developed a disciplined approach to factory knowledge, careful diagnosis, and preservation.
The archive is meant to make technical information around the E9 and M1 easier to find, understand, and apply. It is intended for the next generation of owners, restorers, specialists, and caretakers who will maintain, repair, restore, and preserve these cars.
This project reflects a broader interest in engineering history and the preservation of significant automobiles. I welcome corrections, documentation, and conversations with others who share an interest in the technical history and practical preservation of the BMW E9 and M1.
