Description
2013 Mercedes-Benz CLS-Class 5.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2013 Mercedes-Benz CLS-Class 5.5L 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






Victor Ramirez –
This ECM arrived quickly and worked flawlessly right out of the box—super easy swap with zero hassle. Really impressed with the seamless fit for my 2013 CLS!
Jose Ramirez –
I recently installed this 2013 Mercedes-Benz CLS-Class ECM on my car, and I couldn’t be happier with how smooth the process was. The unit arrived quickly and was already programmed to my vehicle’s VIN, saving me the hassle of additional coding or visits to the dealer. It really was as simple as plug and play—the car fired up perfectly right away without any warning lights. The fit and finish matched the original part exactly, which gave me peace of mind. Overall, this replacement exceeded my expectations and got my CLS running like new again.
Benjamin Morris –
I was a bit nervous about ordering an ECM for my 2013 Mercedes-Benz CLS-Class but this unit exceeded my expectations. It arrived quickly and was already programmed to my VIN, which saved me a lot of hassle. Installation was straightforward, and the car started right up without any errors. I appreciate that the seller included clear instructions and was available for support when I had a couple of questions. Overall, it felt like a seamless experience from purchase to driving—definitely worth it for anyone needing an ECU replacement.
Sean Adams –
The ECM arrived quickly and was exactly as described. Installation was straightforward, and my 2013 Mercedes CLS fired up without any issues. I appreciated the pre-programmed VIN, which saved me a lot of hassle. Overall, a seamless experience that brought my engine control back to perfect working order.