Mercedes-Benz MD1/MG1 ECU Unlock — Permanent, Any Platform, Same Day

Protocol One Engineering provides an advanced, in-house ECU unlock solution for late-model Mercedes-Benz platforms equipped with Bosch MD1 and MG1 control units.

All procedures are completed internally at approved locations.
No external processing. No ECU disassembly. No invasive modification to the control unit.

This solution has been developed in collaboration with Chyorny Blok, a specialist engineering group based in Russia focused on next-generation ECU security systems.

The service enables calibration access for supported platforms including Autotuner and other compatible tools, while maintaining full OEM system integrity.

A Permanent, Platform-Independent Unlock

• Performed once, unlocked for life. The unlock is permanent for the life of the ECU.
• Unaffected by OTA updates. Over-the-air software updates do not affect the unlock in any way.
• Open to any platform. The ECU is not tied to a single tuning platform. Select any supported platform — and change platforms at any time — with no re-unlock required.

National Service Network

Protocol One operates across approved locations throughout Australia:

• New South Wales (NSW)
• Victoria (VIC)
• Queensland (QLD)
• South Australia (SA)

All services are strictly by booking and performed in controlled workshop environments.

Customers may attend with:

• Removed ECU, or
• Complete vehicle (location dependent)

Supported Engines

• M139
• M256

Additional MD1 / MG1 variants may be supported upon request.

Service Timeframe

Most ECUs are completed within:

30–60 minutes (on-site)

Time may vary depending on ECU type and vehicle configuration.

Scope of Service

This service is strictly focused on ECU unlocking.

Included:

• Removal of factory-imposed ECU restrictions
• Preparation for aftermarket calibration platforms

Not Included:

• Custom tuning or calibration
• Software licenses (Autotuner and other tools)

Compatibility

• Autotuner
• Compatible with most major flash tools
• Excludes B-Flash at this time

Key Notes

• No ECU opening
• No cloning or replacement units
• No PCB modification
• Original ECU remains in place with full OEM integration preserved

Post-Service Support

Support is available following completion, including:

• Platform selection guidance
• Software setup assistance
• Initial flashing support

Key Information

Do I need to bring the vehicle?

No. In most cases, supplying the ECU alone is sufficient.

What changes after the service?

The ECU becomes fully unlocked and accessible for supported tuning platforms, enabling calibration and performance modifications while retaining factory functionality.

Is this a cloning service?

No. This is a direct unlock solution. No ECU replacement or cloning is involved.

Is tuning included?

No. This is an access service only. Tuning software and licenses are sold separately.

What if the ECU is restricted again?

If the ECU becomes restricted again due to a software update or related event, Protocol One can restore access remotely or in-store where required.

Protocol One Standard

• • Fully in-house engineered process
  • Developed with international ECU security specialists
  • No invasive modification or hardware alteration
  • Maintains OEM system integrity
  • Consistent, repeatable results across all locations

Same-Day ECU Unlock — In-House Service

All ECU unlocks are completed same day (typically 30–60 minutes) at our approved locations across Australia.

This is a fully in-house, Australian-developed solution by Protocol One Engineering — no overseas shipping, no third-party handling, and no waiting periods.

We do not open or clone ECUs. All work is performed using a non-invasive process that retains full factory integrity.

Bring your ECU or complete vehicle — unlock is completed on-site, same day.