Description
2012 Mercedes-Benz ML-Class 3.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz ML-Class 3.0L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $200 CAD / $140 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566








Kyle Brown –
Installed this ECM in my 2012 ML-Class and it fired right up—no hassle at all. Super quick delivery and flawless fit!
Anthony Stewart –
This ECM arrived quickly and was exactly as described, pre-programmed to my vehicle’s VIN which made installation hassle-free. I was impressed with how seamlessly it integrated with my 2012 ML-Class, no extra programming needed on my end. Everything worked perfectly right out of the box, and I appreciated the support team who guided me through the initial setup. Overall, a reliable replacement that saved me a lot of downtime.
Andrew Howard –
I was a bit nervous about replacing the ECM on my 2012 ML-Class, but this VIN programmed unit made the process so simple. It truly was plug and play—no complicated coding or extra trips to the dealership needed. Shipping arrived quicker than I expected, which was a huge relief because my car was out of commission. After installation, everything fired up perfectly, and the performance feels just like it did before any issues popped up. I appreciate how straightforward and reliable this product turned out to be.
Swapping out the ECU for my 2012 Mercedes ML was a breeze thanks to this ready-to-use module. The fact that it came pre-programmed for my VIN saved me a ton of headaches and extra work. I didn’t have to fuss with programming tools, and the fit was perfect right out of the box. Plus, the customer service was really helpful in answering my questions quickly. My SUV is running smooth again, and I’m confident I made the right choice purchasing this part.
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