Description
2016 Mercedes-Benz E-Class 3.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2016 Mercedes-Benz E-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






Jacob Ward –
Perfect fit for my 2016 E-Class, arrived quickly, and worked immediately without any hassle. Highly recommend for a stress-free upgrade!
Mark Cox –
I was impressed with how straightforward the installation was—this ECM came perfectly programmed and ready to go for my 2016 E-Class. It saved me a ton of time compared to trying to get a unit reprogrammed elsewhere. Shipping was quick, and the support team was really helpful in answering my questions before purchase. Overall, a hassle-free experience that got my car back on the road in no time.
Matthew Taylor –
I was a bit nervous about replacing the ECM on my 2016 Mercedes-Benz E-Class, but this unit arrived perfectly programmed for my VIN and was incredibly straightforward to install. Within an afternoon, I had everything swapped out and the car running like new again. The shipping was surprisingly quick, and I appreciated the follow-up support when I had a couple of questions. It’s rare to find a part that truly fits seamlessly without any hassle. Overall, this purchase saved me a lot of stress and downtime. Highly recommend it for anyone needing a reliable ECU replacement.