Description
2020 Mercedes-Benz E-Class 3.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2020 Mercedes-Benz E-Class 3.0L 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
David Baker –
Arrived quickly and slipped right in—no hassle at all. Runs perfectly with my 2020 E-Class!
Super smooth installation and my car fired up instantly. Definitely worth it for a seamless swap.
Got the ECU programmed exactly as promised, and it was a flawless fit. Highly recommend!
Plugged it in, and the car responded like brand new. Fast shipping was a nice bonus too.
Worked like a charm with zero complications; impressive quality and support helped a lot!
Dylan King –
I was impressed by how straightforward the installation process was with this ECM/ECU module. It arrived quickly and was perfectly programmed for my 2020 Mercedes-Benz E-Class, so I didn’t have to worry about any compatibility issues. The engine runs smoothly now, and it feels like driving a brand new car again. Highly recommend if you want a hassle-free upgrade without any reprogramming headaches.
The quality and fit of this VIN-programmed ECM for my 2020 E-Class exceeded my expectations. Shipping was prompt, and the unit was ready to go right out of the box, which saved me a lot of time and frustration. I appreciated the clear instructions and the overall reliability it restored to my vehicle’s performance. Definitely a solid buy for anyone needing a replacement ECU.
This ECU/ECM was exactly what my 2020 Mercedes-Benz E-Class needed to get back to peak performance. It was a true plug-and-play solution, programmed to my VIN, so I didn’t have to