ECU & TCU Binary and Definition File Collection

This repository contains a collection of ECU (Engine Control Unit) and TCU (Transmission Control Unit) binary files (.bin), along with their corresponding definition files (.xdf) used for tuning and analysis.

Repository Structure

The files are organized by manufacturer and model, using a consistent folder hierarchy to support multiple vehicle platforms. Each vehicle follows this structure: For the VIN part, remove from the complete the last 5 chars for privacy reasons.

Manufacturer/Model/Chassis/EngineCode/VIN/
├── ECU/
│   ├── Base/        # Original, unmodified factory files
│   └── Modified/    # Tuned or optimized versions
└── TCU/
    ├── Base/
    └── Modified/

Example:

BMW/3/E46/M54B30/WBA123456789/
├── ECU/
│   ├── Base/
│   └── Modified/
└── TCU/
    ├── Base/
    └── Modified/

Future additions will follow the same format. For example:

Seat/Leon/1P/CDAA/VSS123456789/

Content Overview

• Base: Original, unmodified factory .bin files and matching .xdf definition files.
• Modified: Tuned or optimized versions of the base files, for analysis and comparison.

These resources are intended for educational and research purposes only, such as:

• Studying map structures
• Comparing OEM vs. tuned files
• Developing custom tuning strategies

Contribution Guidelines

• Follow the folder structure strictly as outlined above.
• Include both .bin and .xdf files when possible.
• Use full(-5 chars) for folder names to maintain structure and privacy.

Usage Notice

⚠️ Important:
All files in this repository may be used and modified for personal and non-commercial purposes.
Do not distribute any files from this repository in any form, including resale, sharing, or repackaging.

Disclaimer

The use of any files in this repository is done entirely at your own risk.
The repository owner assumes no liability or responsibility for any damage, malfunction, or legal issues arising from the use, modification, or misuse of the files provided.