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Mercedes MRD2/MRG2/MRG3 ECU Unlocks Now Live!

Mercedes MRD2/MRG2/MRG3 ECU Unlocks Now Live!

New AT Protocol!

Dear Users,

Today, we are deploying a software update of monumental proportions. We are thrilled to announce full Bench mode support for a massive wave of latest-generation Bosch ECUs powering the modern Mercedes-Benz lineup: MG1CS046 (MRG3), MG1CS100 (MRG2), MD1CP010 (MRD2.20), and MD1CP011 (MRD2.1) on your AutoTuner Tool!

This colossal release targets the absolute core of the recent German car market (2020 to 2025+ models). It covers almost all modern Petrol and Diesel drivetrains paired with Mild-Hybrid (MHEV) and Plug-in Hybrid (PHEV) systems—spanning from the everyday C-Class to the iconic G-Class and ultra-luxurious Maybach variants.

🔒 Advanced Workflow (Mail-in ➡️ Bench):

Mail-in Unlock: The ECU must first be sent to our headquarters for a secure, high-precision hardware unlock by our engineering team.

Bench: Once returned to your workshop, factory restrictions are gone. You gain full Bench access to read and write calibrations directly on your workbench with total peace of mind—no ECU opening required.

Massive Fleet Coverage Highlights (Petrol & Diesel MHEV / PHEV Engines):

US Guide:

2.0T I4 MHEV and PHEV

  • 2022+ C300
  • 2024+ CLE300
  • 2024+ E350
  • 2023+ GLC300
  • 2025+ GLC350e
  • 2024+ GLE350
  • 2024+ GLE450e

3.0T V6 MHEV and PHEV

  • 2024+ CLE450
  • 2024+ CLE53 AMG
  • 2024+ E450
  • 2024+ E53 AMG
  • 2025+ G550
  • 2024+ GLE450
  • 2024+ GLE53 AMG
  • 2024+ GLS450
  • 2024+ S500

Global Guide:

Petrol Range (Bosch MG1CS046 & MG1CS100):
Supported Models: C, E, CLE, GLC, GLE, S-Class & Maybach.
Powerplants: 200, 260, 300, 450, 500, 550, the high-performance 53 AMG, and plug-in hybrids 300e, 350e, 400e, 450e, 580e.

Diesel Range (Bosch MD1CP010 & MD1CP011):
Supported Models: C, E, CLE, GLC, GLE.
Powerplants: 200d, 220d, 300d, and the highly popular diesel-hybrids 300de & 350de.

Update your software today and position your workshop as the ultimate destination for modern Mercedes-Benz tuning!

The AT Team

👉 Remote Unlock for Mercedes MDG1

👉 Reusable ECU shipping case

Key Features

  • Type: Engine Control Unit (ECU) ⚙️
  • Mode: BENCH NR 🔌
  • MCUs: TC387, TC389 🖥️
  • Read time: 2min ⏱️
  • Write time: 1min ⏱️
  • Checksums correction ✅
  • Backup creation 🔄
  • Mail-in unlock needed 📦

Compatibility List*

🚗 Mercedes Models: C (2021) / CLE (2023) / E (2020 - 2024) / G (2025) / GLC (2023) / GLE (2023) / Maybach (2020) / S (2021)
🔧 Mercedes Engines: 200 MHEV / 200d MHEV / 220d MHEV / 260 MHEV / 300 MHEV / 300d MHEV / 300de PHEV / 300e PHEV / 350 MHEV / 350de PHEV / 350e PHEV / 400e PHEV / 450 MHEV / 450e PHEV / 500 MHEV / 53 AMG MHEV / 53 AMG PHEV / 550 MHEV / 580e PHEV

*The list may evolve over time.

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