ECU-ISN Reader v2.5 - The Ultimate Free ISN Extractor
Introducing ECU-ISN Reader v2.5, a comprehensive and free utility dedicated to one essential task: reading the Individual Serial Number (ISN) from a vast array of BMW DME/DDE memory dumps. This tool is indispensable for automotive technicians, programmers, and locksmiths who need the ISN for key programming, module replacement, or synchronization tasks.
Why You Need This Tool
The ISN is the unique "fingerprint" that links your immobilizer system (CAS/FEM/BDC) to the engine control unit. Without the correct ISN, the car will not start. This tool saves you time and money by quickly extracting this critical code from a file you've already read from the ECU.
Unmatched ECU Support
This tool's greatest strength is its extensive compatibility list, covering dozens of ECU types from different generations. Simply open your EEPROM or Full Flash file, and the software will automatically find and display the ISN.
Supported ECU families include:
Advanced Beta Feature for MD1 / MG1
The latest version includes an experimental (Beta) function for the newest generation of Bosch MD1 and MG1 ECUs.
Prerequisites & How It Works
This software reads existing memory dump files (e.g., .bin files). To obtain these files from an ECU, you first need to read its memory using a compatible hardware programmer. The tool you need depends on the ECU itself (e.g., K-TAG, Autotuner, Flex, FGTech, etc.).
System Requirements
This tool reads and displays data. It is the user's responsibility to know what to do with this information. The user is fully responsible for all subsequent actions and must comply with all local laws.
VirusTotal Check: https://www.virustotal.com/gui/file/09b89057e572743a556982e3c8af3b900b5966f57c8e2165838014aa445ecb94

Introducing ECU-ISN Reader v2.5, a comprehensive and free utility dedicated to one essential task: reading the Individual Serial Number (ISN) from a vast array of BMW DME/DDE memory dumps. This tool is indispensable for automotive technicians, programmers, and locksmiths who need the ISN for key programming, module replacement, or synchronization tasks.
Why You Need This Tool
The ISN is the unique "fingerprint" that links your immobilizer system (CAS/FEM/BDC) to the engine control unit. Without the correct ISN, the car will not start. This tool saves you time and money by quickly extracting this critical code from a file you've already read from the ECU.
Unmatched ECU Support
This tool's greatest strength is its extensive compatibility list, covering dozens of ECU types from different generations. Simply open your EEPROM or Full Flash file, and the software will automatically find and display the ISN.
Supported ECU families include:
- Siemens: MS42, MS43, MS45.x, MSV70, MSV80, MSD80, MSD81, MSD85
- Bosch (ME/MED/MEV): ME9, ME9.2, MEV1746, MEVD17xx, MVD17xx, MV1722, MED17xx, ME17N45, MED172, MEV17N46
- Bosch (EDC): EDC16, EDC17
- High-Performance: MSS65
- Modern B-Series Engines: B38, B48, X63TU
Advanced Beta Feature for MD1 / MG1
The latest version includes an experimental (Beta) function for the newest generation of Bosch MD1 and MG1 ECUs.
- Dual Algorithm Detection: Automatically detects MG1 vs. MD1 and uses one of two algorithms to find the data.
- Extended Data Readout: In addition to the ISN, this function can read the VIN, manufacturing/programming dates, and software versions.
- Future Capability: The developer notes indicate that work is in progress to allow for ISN changing and working hour resets in future updates.
Prerequisites & How It Works
This software reads existing memory dump files (e.g., .bin files). To obtain these files from an ECU, you first need to read its memory using a compatible hardware programmer. The tool you need depends on the ECU itself (e.g., K-TAG, Autotuner, Flex, FGTech, etc.).
System Requirements
- Operating System: This software was tested and confirmed to be working on Windows 10 Enterprise LTSC (2019) and should be compatible with other recent Windows versions.
This tool reads and displays data. It is the user's responsibility to know what to do with this information. The user is fully responsible for all subsequent actions and must comply with all local laws.
VirusTotal Check: https://www.virustotal.com/gui/file/09b89057e572743a556982e3c8af3b900b5966f57c8e2165838014aa445ecb94
