Description
2016 Mercedes-Benz S-Class 5.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2016 Mercedes-Benz S-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
Paul Phillips –
Installed it in minutes with zero hassle, and my S-Class runs perfectly now—highly recommend! Fast delivery and flawless fit for my 2016 model.
Jason Brooks –
This ECM/ECU arrived quickly and was exactly what I needed for my 2016 Mercedes-Benz S-Class. Installation was straightforward—no complicated programming or extra tools required. The vehicle fired right up, and everything runs smoothly now. Really impressed with how seamless the process was and the quality of the part.
Ryan Walker –
I was a bit nervous about ordering an ECU online, but this one for my 2016 Mercedes-Benz S-Class fit perfectly and worked exactly as promised. The VIN programming was spot on, so there were no issues with compatibility or errors after installation. Shipping arrived much faster than I expected, which made the whole process smoother. Installation was straightforward, truly plug-and-play with no need for complicated setups or extra trips to the mechanic. Overall, a great experience that saved me a lot of time and hassle.
I recently replaced the ECM on my Mercedes S-Class with this VIN-programmed unit, and I couldn’t be happier with how seamless everything went. The unit arrived in excellent condition and was clearly quality-tested before shipping. What impressed me the most was how it just plugged right in without any additional programming on my end — a real lifesaver! I also appreciated the quick customer support who answered my questions promptly. This purchase definitely restored my car’s performance to like-new status.
After some extensive research,