Description
2014 Mercedes-Benz CLS-Class 4.7L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 Mercedes-Benz CLS-Class 4.7L 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




Kyle Cook –
I was a bit nervous about ordering an ECM/ECU online, but this 2014 Mercedes-Benz CLS-Class unit arrived quickly and was exactly as described. The VIN was perfectly programmed, so installation was smoother than I expected—just plug and play with no extra coding required. After swapping it in, my car fired right up, and all the systems have been running flawlessly. It’s clear this unit is high quality, and the seller’s support team was helpful when I had a couple of questions before ordering. Overall, a great experience and highly recommended if you want to get your Mercedes back on the road fast.
Sean Moore –
I was really impressed with how straightforward the installation was on this ECM unit for my 2014 Mercedes CLS. It came VIN programmed, which saved me a lot of time and hassle. Shipping was quick, and the part worked flawlessly right out of the box with no error codes. Definitely a reliable fix if you’re looking to replace your ECU without any headaches.
Jacob Parker –
Arrived quickly and worked flawlessly right out of the box—exactly what I needed for my CLS-Class. Highly recommend!
Liam Bell –
I was pretty nervous about ordering an ECM for my 2014 Mercedes CLS, but this unit came exactly as described and was programmed to my VIN right out of the box. Installation was straightforward, and it truly was a plug-and-play experience—no extra coding or trips to the dealer needed. I had a small question during setup, and their tech support responded quickly and helped me through it without any hassle. The car runs smoother than ever, and I feel like I saved a lot of money compared to going with the dealership. Overall, a fantastic purchase that gave me peace of mind.