This blog documents the technical journey of modifying and upgrading my second-hand Volkswagen e-Golf. My goal is to retrofit factory options that were not originally installed, using OEM parts and tools such as VCDS, ODIS, and parameterization datasets.

Each post covers a specific aspect of the project—ranging from hardware retrofits like sensors, cameras, and lighting, to firmware updates, coding, and troubleshooting. I detail the process step by step, including wiring diagrams, part numbers, diagnostic procedures, and common pitfalls.

The aim is not only to customize the car to my liking, but also to build a reliable reference for others working on similar projects.

One word of caution: all the information provided here is based on my own experiences and research. While I strive for accuracy, modifications can vary greatly between vehicles and model years. Always double-check my findings with official documentation. I cannot be held responsible for any damage or malfunctions that may occur as a result of following this blog.

Continue reading? The journey starts here. Want to see an overview of the mods? Check out this page.