Description
2012 Mercedes-Benz ML350 3.0L AT diesel ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz ML350 3.0L AT diesel 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 require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
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



Colin Richardson –
I was a bit nervous ordering an ECU online for my 2012 Mercedes ML350, but this purchase turned out great. The unit arrived quickly with free shipping, which was a nice bonus. What impressed me most was the seamless plug-and-play setup—they had it programmed perfectly to my VIN, so installation was straightforward and hassle-free. Customer support was also very responsive, answering all my questions promptly. Overall, I’m really happy with the quality and service.
David Torres –
I purchased the 2012 Mercedes ML350 3.0L diesel ECM and was impressed with how smoothly the VIN programming was handled. The unit arrived quickly with free shipping, which was a nice bonus. Installation was straightforward thanks to their professional programming service, and the engine has been running perfectly since. Customer support was responsive and answered all my questions promptly, making the whole process stress-free.
Ethan Cox –
The ECU arrived quickly with free shipping, and the plug-and-play setup was a breeze—highly recommend for anyone needing a reliable replacement.
Matthew Hayes –
I was thrilled to find this programmed ECM for my 2012 Mercedes ML350. The plug-and-play setup made installation a breeze, which saved me a lot of time and hassle. What impressed me most was how quickly the shipment arrived, especially considering the size of the part. The quality of the repair feels spot on — my engine runs smoother and more responsive than before. Overall, this was a stress-free experience from purchase to install.