Reans was born out of a passion for classic BMW’s and a deep understanding of the electrical systems that keep them operating. Our mission is to breathe new life into vintage automotive technology by reverse engineering and redesigning essential components which are no longer available on the market.
The idea for this company began when its founder, Reagan Ansel was inspired by an excellent open source project by a fellow engineer from Germany. This project was a fully reverse engineered and documented Service Interval (SI) circuit board from the BMW E30
From this, Reagan was inspired to continue the work by reverse engineering every remaining circuit on the BMW E30’s instrument cluster. After months of dedication, and with help from other community members, every board on the E30 instrument cluster has been documented in two open source projects in the spirit of Fabian’s. The purpose of making it open source is to give the community invaluable resources for troubleshooting and restoration work that would otherwise require potentially years of specialized development.
The Projects
The open source projects are available for anyone to access. This allows enthusiasts to view and use the schematics for troubleshooting their existing boards by understanding how they function. All of these boards will be available for purchase through this website once the layouts are completed. Although the Nexus and SI boards will be prioritized as they are the common failure points and are the most likely to need a replacement.

Early Model
The early model project includes schematics and layouts for all boards aside from the SI board. See Fabians project for that one.
Late Model
This project is the first fully reverse engineered late model instrument cluster and it is open for the community to use. This includes the first late model SI board replacement.

Early Model SI Board
Fabian Gmeiner’s early model SI board reverse engineer project can be found at his GitHub page linked below.