Description
2019 Mercedes-Benz SL-Class 3.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Mercedes-Benz SL-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







Hunter Sanders –
I was impressed by how straightforward the installation process was for this ECM/ECU unit. It arrived quickly and was already programmed to my vehicle’s VIN, which saved me a ton of hassle. The engine runs smoothly now, and everything syncs perfectly with the car’s systems. Definitely a reliable part for anyone needing a replacement without the headache.
Aaron Torres –
I’m really impressed with the quality and ease of this ECM/ECU for my 2019 Mercedes-Benz SL-Class. It came fully programmed to my VIN, so I didn’t have to worry about any complicated setup or coding. The installation was straightforward—just plug it in and go, exactly as promised. Shipping was surprisingly quick, and the support team was very helpful when I had a couple of questions before ordering. After swapping it out, my car runs smoothly with no error codes, and it feels just like the original. Definitely worth every penny for a hassle-free fix.
Victor Wright –
Super easy install and worked flawlessly right out of the box—definitely saved me time and hassle. Great quality and fast delivery!
Anthony Kelly –
I was a bit nervous about ordering an ECM/ECU online, but this one for my 2019 Mercedes-Benz SL-Class arrived quickly and was exactly as described. The VIN was already programmed, which saved me a huge headache. Installation was surprisingly straightforward – it truly was a plug-and-play setup. After swapping it in, my car fired right up with no error codes, and everything runs flawlessly. The whole process went smoother than I expected, and I appreciate the clear instructions that came with it. Definitely a solid purchase for anyone needing a reliable replacement.