Description
2019 Mercedes-Benz SL-Class 5.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Mercedes-Benz SL-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



Jordan Phillips –
Installed the ECM in my 2019 SL-Class with zero hassle—true plug-and-play and it runs flawlessly. Super fast shipping, couldn’t be happier!
Ryan Adams –
I recently installed this ECM/ECU on my 2019 Mercedes-Benz SL-Class, and I couldn’t be happier with how smoothly everything went. The unit came already VIN programmed, which saved me a ton of time and hassle. I was impressed by how straightforward the plug-and-play connection was—no confusing rewiring or complicated setup needed. Shipping was quick, and when I had a couple of questions, the support team was knowledgeable and really helpful. Overall, this was exactly what I needed to get my car running perfectly again without any headaches.
David Walker –
This ECM arrived quickly and was exactly as described. Installation was straightforward, and it seamlessly integrated with my 2019 SL-Class without any hitches. After programming to my VIN, the car started right up with no error codes or issues. Very impressed with the quality and professionalism behind this product.