Description
2018 Mercedes-Benz SL-Class 6.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2018 Mercedes-Benz SL-Class 6.0L 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





Owen Phillips –
Arrived quickly and fit perfectly in my 2018 SL-Class—installation was a breeze with absolutely no glitches. Highly recommend!
This ECM was exactly what my Mercedes needed; VIN programmed and ready to go right out of the box. Super smooth experience!
Hunter Perez –
I was pleasantly surprised by how straightforward the installation was—this ECM came perfectly programmed to my VIN and fit right in without any hassle. The package arrived quickly and was well protected, which made me confident in the seller. After installation, my SL-Class fired up perfectly and runs smoothly, just like it should. Highly recommend this if you want a reliable, ready-to-go solution without any extra programming headaches.
Owen Green –
I was a bit nervous about swapping out the ECM on my 2018 Mercedes SL-Class, but this unit made the whole process surprisingly smooth. It came programmed perfectly for my VIN, so installation was truly plug and play—no extra coding needed. The shipping was quick, and the package arrived securely wrapped, which gave me confidence in what I was getting. After the install, the car ran like a dream with no hiccups or error lights. If you need a reliable, hassle-free replacement, this is definitely the way to go.