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Mercedes MD1/MG1 ECU Unlock

First to market with full OBD programming support. Done fast. Done right.

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Mercedes MD1/MG1 ECU Unlock

We were first to market with the Mercedes MD1/MG1 unlock, and we're still the only ones doing it with full OBD programming support.

Whether it's a 2.0D or AMG 45, this is the real deal.

Mercedes implemented extremely robust security on their newer ECUs, making traditional tuning methods impossible. Our proprietary unlock solution removes these barriers, giving you full access to the ECU for custom calibration.

No bench work. No ECU removal. Just drive in, get unlocked, and drive out with a properly tuned Mercedes.

Done fast. Done right.

Blue Mercedes-AMG C63 on dyno for ECU unlock

2025 Mercedes Sprinter: ECU Unlocked In-House Using KOHREX

At EcoMax Tuning, we continually invest in the latest ECU tuning technology, allowing us to support an ever-growing range of modern vehicles.

Our latest investment in KOHREX ECU unlocking equipment has expanded our capabilities further, enabling us to safely unlock and tune newer vehicles that would otherwise require specialist ECU send-away services.

A recent example is this 2025 Mercedes Sprinter, which we successfully unlocked in-house, preparing the ECU for remapping without needing to remove and send it away to an external specialist.

Why Our Investment Matters

Modern vehicles are becoming increasingly complex, with manufacturers introducing more advanced ECU security systems. Having access to the latest equipment allows us to offer customers several advantages:

  • In-house ECU unlocking, reducing reliance on external specialists.
  • Faster turnaround times, avoiding unnecessary ECU shipping delays.
  • Latest vehicle support, expanding our tuning capabilities to newer models.
  • Specialist expertise, over a decade of hands-on ECU tuning experience.
  • Greater control, with unlocking and tuning procedures managed by our experienced team.

ECU Tuning Specialists Since 2014

Established in 2014, EcoMax Tuning has built its reputation through technical expertise, continuous investment and a commitment to delivering high-quality vehicle tuning.

Whether you own a modern Mercedes Sprinter, a performance car or an everyday vehicle, our extensive range of specialist tuning equipment allows us to provide professional solutions tailored to your vehicle.

Looking to remap a newer vehicle? Contact EcoMax Tuning in Peterborough to discuss your ECU unlocking and remapping options.

Watch the 2025 Sprinter being unlocked in-house on our Instagram.

Free Courtesy Car Available

Don't let your day stop while we work on your vehicle. Every booking includes a complimentary courtesy car so you can carry on with life uninterrupted.

Included with your service:

  • Provided as standard, no extra cost
  • Stay mobile while we work on your vehicle
  • Fully insured for your peace of mind

Why EcoMax for Mercedes Unlocks

Full OBD Support

Complete read and write capability through the diagnostic port. No ECU removal required.

First to Market

We pioneered the Mercedes MD1/MG1 OBD unlock. Experience and expertise you can trust.

Tuning Ready

Once unlocked, your ECU is ready for custom tuning to extract maximum performance.

All Models Supported

From the 2.0D diesel to the AMG 45 series, we've got the solution.

Supported Mercedes Models

Mercedes A-Class (W177) 2.0D
Mercedes C-Class (W205/W206) 2.0D
Mercedes E-Class (W213) 2.0D
Mercedes GLC 2.0D
Mercedes A45 AMG (W177)
Mercedes CLA 45 AMG
Mercedes GLA 45 AMG
Mercedes A35 AMG

Don't see your Mercedes listed? Get in touch, we likely support it.

Ready to Unlock Your Mercedes?

Get in touch about your Mercedes MD1/MG1 ECU unlock and tuning.

Frequently Asked Questions

Mercedes MD1 and MG1 ECUs come with advanced security that prevents reading and writing of the ECU data. An unlock removes these restrictions, allowing for custom tuning and calibration.

We support all Mercedes vehicles with MD1 (diesel) and MG1 (petrol) ECUs. This includes the 2.0D OM654 engines and the AMG 45 series among others.

Yes, once unlocked, the ECU remains unlocked. This means future tuning updates or changes can be done without repeating the unlock process.

Yes, we were first to market with full OBD programming support for Mercedes MD1/MG1 unlocks. No bench work required, the entire process is done through the diagnostic port.

The unlock process typically takes 1-2 hours. Combined with a remap, expect around 2-3 hours total.

As with any ECU modification, manufacturer warranty may be affected. We keep your original file and the unlock is not detectable under normal circumstances.

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Ready to get started?

Book your appointment today or get in touch with any questions.