Description
2013 Mercedes-Benz C-Class 3.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2013 Mercedes-Benz C-Class 3.5L 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





Ethan Campbell –
I recently replaced the ECM on my 2013 Mercedes-Benz C-Class with this unit, and I couldn’t be happier. The VIN was already programmed, which saved me a ton of time and hassle during installation. Everything plugged in perfectly without any extra modifications, making the whole process smooth and stress-free. The package arrived quickly, and the customer service was very responsive when I had a couple of questions before buying. My car is running like new now, and I feel confident knowing I chose a quality product.
Adam Rivera –
I was a bit nervous about replacing the ECM on my 2013 Mercedes C-Class, but this unit exceeded my expectations. It arrived quickly and was truly plug-and-play, making installation hassle-free. After swapping it out, my car fired up immediately with no issues. The VIN programming was spot on, so everything runs smoothly just like before.
This ECM for my 2013 C-Class was exactly what I needed. Shipping was surprisingly fast, and installation went without a hitch thanks to the perfect VIN programming. I appreciated that it was ready to go right out of the box—no extra coding or trips to the dealership required. The car has been running flawlessly ever since.
Fantastic product! The ECM arrived well-packaged and was programmed specifically for my 2013 Mercedes-Benz C-Class. Installing it was straightforward, and the engine management system worked perfectly right after. Customer support was also responsive when I had a couple of questions, which made the whole process stress-free. Definitely recommend for anyone needing a
Connor Brown –
Super easy install and works perfectly with my 2013 C-Class—had it up and running in no time! Fast shipping and the programming matched my VIN flawlessly.