We are pleased to announce the release of XIRDecoder V3.9. Check out the latest updates, bug fixes, and newly supported ECU protocols below.
Download V3.9
- Official Server: Download XIR Decoder V3.9
- Alternative Link (MEGA): MEGA Download
Troubleshooting Tip:
If you encounter a “No Internet” warning, please update your DNS settings to 1.1.1.1 and 8.8.8.8.
Antivirus Notice:
- Windows or third-party antivirus software may flag the application as a potential threat.
- Please temporarily disable your antivirus or add an exclusion for the software.
- XIRDecoder program is 100% clean and safe; false positives occur due to our multi-layer encryption protection logic.
XIRDecoder Software V3.9 Update Info
V3.9 — [15.10.2026]
MAHINDRA (MD1CS018) Additions:
- DTC (Diagnostic Trouble Codes)
- CAT (Catalyst)
- EGR (Exhaust Gas Recirculation)
- LAMBDA / O2 Sensor
- MAF (Mass Air Flow)
- NOX Sensor
- Torque Monitor
- TVA (Throttle Valve Actuator)
V3.9 — [14.10.2026]
BMW / MINI COOPER (EDC17_C50) Additions:
MAF (Mass Air Flow)
V3.9 — [09.10.2026]
- Fixed various UI and program interface issues.
- Improved overall interface layout and visual interactions.
- Refined button designs and user experience elements.
- Enhanced compatibility and support for a broader range of ECU models.
- Implemented ECU-specific processing optimizations.
- Fixed a stability issue causing unexpected program closure during file generation.
- Updated and expanded emissions solutions across multiple ECU models.















