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BMW Bosch MG1/MD1 IMMO OFF
​Fully Functional Without ISN 
MG1CS001 / MG1CS002 / MG1CS003 / MG1CS049 / MG1CS201 MD1CP002 / MD1CP032 MD1CS001 / MD1CS002

We provide a professional IMMO OFF solution for BMW G-series equipped with Bosch MG1 or MD1 ECUs.
​This service removes the immobilizer function without requiring the ISN (Individual Serial Number), making it ideal for engine swaps, ECU replacements, or performance projects.

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BMW MG1 MD1 IMMO OFF

What You Get:
  • Fully working IMMO OFF solution
  • No need for ISN
Who needs it?
  • Engine swap projects
  • ECU replacement cases
  • Lost ISN situations
  • Performance builds & testing setups
Supported Systems & Compatibility
  • BMW G-Series models only
  • Bosch MG1 ECUs (DME)
  • Bosch MD1 ECUs (DDE)
  • Aurix-based ECUs
Services Support IMMO OFF For:
BOSCH MG1CS001, MG1CS002, MG1CS003, MG1CS049, MG1CS201, MD1CP002, MD1CP032, MD1CS001, MD1CS002
What You Get (Real Value for Workshops & Tuners)
When you order this service, you’re not just getting a modified file, you’re getting a complete working solution.
✔ Fully Functional IMMO OFF
No hidden issues, no partial bypass. The ECU works as expected.
✔ No ISN Required
Skip the most time-consuming step entirely.
✔ Tested & Verified File
Each file is handled individually, not auto-generated.
✔ Fast Turnaround
Usually completed within 1–2 working days.
✔ Remote or File-Based Service
No need to ship hardware, just send your ECU file.


The process is simple and designed for real workshop workflows:
MG1CS001 / MG1CS002 / MG1CS003 / MG1CS049 / MG1CS201 MD1CP002 / MD1CP032 MD1CS001 / MD1CS002
1. Read ECU File
Use your preferred tool (bench) to extract the ECU data.

2. Send the File
Upload your file through the platform or contact support.
3. File Modification
The immobilizer function is removed carefully.
4. Receive Ready to Use File
You get a tested file, ready for writing back.
5. Write & Start
Flash the ECU, install it, and the engine starts, no ISN needed.

If you already have a BMW full account, contact your support team directly for faster handling.
Otherwise, place your order online and everything will be arranged with you step by step.


Order here:
BMW MG1/MD1 ISN Reset & IMMO OFF Service


Frequently Asked Questions:
What is BMW IMMO OFF for Bosch MG1/MD1 ECUs?
BMW IMMO OFF is a process that disables the immobilizer system in Bosch MG1 and MD1 engine control units. This allows the ECU to operate without requiring synchronization with the vehicle’s original immobilizer system.
Do I need ISN (Individual Serial Number) for this service?
No. This solution is fully functional without ISN. You don’t need to extract or provide the ISN, which simplifies the process and saves time.
Which BMW models are supported?
This service is designed specifically for BMW G-Series vehicles equipped with Bosch MG1 or MD1 ECUs. It does not support F-Series or older BMW models.
What are the main use cases for IMMO OFF?
Common use cases include:
  • Engine swaps
  • ECU replacements
  • Racing or off-road builds
  • Test bench ECU operation
  • Projects where the original immobilizer system is unavailable
How does the IMMO OFF process work?
You send us your ECU file, and we modify it to disable the immobilizer system. The updated file is then returned to you, ready to flash back to your ECU.
Can the service be done remotely?
Yes. The service can be completed remotely if you are able to read and write your ECU file. We also support customers with full BMW accounts for faster handling.
How long does the service take?
Turnaround time is typically 1–2 working days, depending on file quality and submission time.
Is the IMMO OFF solution tested and reliable?
Yes. Every file is carefully modified and tested to ensure stable performance and safe operation.
Will the car start normally after IMMO OFF?
Yes. Once the modified file is written back to the ECU, the engine can start without immobilizer authorization.
Do I need special tools?
Yes. You need ECU reading/writing tools compatible with Bosch MG1 or MD1 units to extract and flash the file.
Is this service safe for my ECU?
Yes, when done correctly. Our process ensures that only the immobilizer function is disabled while maintaining full ECU functionality.
Can this be reversed back to original?
Yes. If needed, you can always reflash the original ECU file to restore the immobilizer system.
Do you provide support after purchase?
Yes. We provide guidance and support to ensure the process is completed successfully.
How do I order the service?
You can order directly from our online shop or contact us. After purchase, we will guide you through the file submission process.
Is this legal to use?
This service is intended for off-road, racing, export, or testing purposes only. Always check your local regulations before use.

BMW Services
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  • HOME
  • Electronic Board Repair Egypt
  • AUTO File Services Portal
    • ECU File Services Portal
    • Auto Portal News
  • Services
  • Protarge VI Testers
    • FADOS7F1 18V
    • FADOS9F1
    • FADOS XI
    • FADOS MUX Multiplexer
  • Chip Programmer
  • ECU Repair Manual
  • ECU Books
  • ONLINE Store
  • ECU Fault Locator
  • BMW Services
  • ECU File Editors
  • Mercedes File Services Account
  • Auto Tuning Blog
  • ECU Removal Tool Pro
  • Automotive IC Database
  • Contact Us