Description
2012 Mercedes-Benz ML350 3.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz ML350 3.5L AT gas 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



Dominic Moore –
I recently purchased the 2012 Mercedes ML350 ECM from this seller and couldn’t be happier with the experience. The ECU arrived quickly with free shipping, which was a nice bonus. What really stood out was how seamless the VIN programming was—the unit was ready to go right out of the box, no extra hassle. I had a couple of questions before ordering, and their customer service team responded promptly and thoroughly. Overall, the quality and ease of installation made this a great buy for my Mercedes.
Elijah Hayes –
I recently purchased the 2012 Mercedes ML350 3.5L AT gas ECM from this seller, and I couldn’t be happier with how smoothly everything went. The unit arrived quickly with free shipping, which was a pleasant surprise, and it was VIN programmed and ready to install right out of the box. I appreciated how well they communicated throughout the entire process, answering my questions promptly and keeping me in the loop. Installation was straightforward thanks to their plug-and-play setup, and my ML350 runs like new again. It’s clear that quality and customer service are priorities for this company.
Patrick Cooper –
Received my programmed ECM quickly with free shipping, and it worked perfectly right out of the box. Great service and fast delivery!
Michael Ward –
I ordered the 2012 Mercedes ML350 ECM and was impressed by how smoothly everything went. The VIN programming was spot on, and it was basically plug-and-play when I installed it. Shipping was very reasonable, arriving quicker than I expected, and the quality of the unit seems top-notch so far. They also kept me informed throughout the process, which made me feel confident in my purchase.