LATEST · 29.10.2026

Mercedes Actros and Axor ECU Solutions: AdBlue, DPF, EGR on HDEP MCM and ACM

Mercedes Actros and Axor ECU Solutions: AdBlue, DPF, EGR on HDEP MCM and ACM

Mercedes-Benz Actros, Axor and Atego are among the most common trucks on the road. They use two controllers: the MCM for the engine and the ACM for after-treatment (AdBlue, DPF). Solutions for Mercedes trucks are available at ECU Prime on both.

Which ECU does your Mercedes use?

The ECU type depends on model year and engine. The exact type is confirmed from the ECU label or by reading it with a diagnostic tool; send a photo of the label on WhatsApp and we will tell you which file applies.

Common faults

  • AdBlue / SCR warning, NOx sensor failure and derate
  • DPF loading and endless regeneration in city and short runs
  • Sooted EGR valve and cooler
  • Weak pulling on loaded climbs and high fuel use

Related pages: Mercedes kamyon, Mercedes kamyon AdBlue fault solution.

How it works

  1. Reading: upload the original file read with your tool, or visit one of our locations.
  2. Calibration: the file is prepared for the exact engine and ECU software version, checksum corrected; the original is archived.
  3. Application and check: fault scan and run / road test after writing.

Workshops get the same solutions through the ECU Prime file service.

Emission-related software is offered only for uses permitted by applicable law (off-road / closed-site use, racing, export, diagnostics); road use and inspection compliance are the owner’s responsibility.

ECU solutions mentioned in this article

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FOR WORKSHOPS AND TUNERS

Notify me when a new CONTINENTAL MCM2.1 D1/D2 solution is released

We email you when an unlock, a new operation or an on-site solution is added for this ECU family. No advertising; technical announcements only.

For workshops

Prepare this file in your own workshop: ECU Prime

ECU Prime is chiptuning software that recognises the original ECU file you read with your tool and applies the operation you choose. The checksum is corrected in the same flow.

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