Description
2012 Mercedes-Benz C-Class 1.8L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz C-Class 1.8L 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



David Wright –
Perfect fit for my 2012 C-Class, and it was ready to go right out of the box—super easy install and fast delivery!
Jose Bell –
This ECM arrived quickly and was exactly as described for my 2012 Mercedes C-Class. Installation was straightforward—I simply plugged it in, and it worked perfectly without any additional programming on my end. The engine runs smoothly now, and I appreciate the clear instructions that made the whole process stress-free. Definitely a reliable solution if you need a replacement ECU.
Hunter Peterson –
I was a bit nervous about ordering an ECU online, but this unit for my 2012 Mercedes-Benz C-Class arrived quickly and worked flawlessly right out of the box. The VIN programming was spot on, so I didn’t have to fiddle with any complicated setups. Installation was surprisingly simple—truly plug and play as advertised. After swapping it in, my car started up without a hitch and runs as smoothly as ever. It’s clear this is a quality product, and the seller’s support was helpful when I had a couple of questions. Highly recommend if you need a reliable ECM replacement!