Description
2019 Mercedes-Benz GLS-Class 3.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Mercedes-Benz GLS-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 Collins –
The ECU arrived quickly and was exactly as advertised—installation was a breeze and my GLS is running flawlessly again. Highly recommend!
Kyle Murphy –
I was pretty nervous about ordering an ECM/ECU online for my 2019 Mercedes GLS, but this unit arrived exactly as promised and was already programmed to my VIN. Installation was surprisingly straightforward—just plug it in and go, no extra coding or headaches. The shipping was quicker than I expected, which was a relief since I needed my car back on the road asap. After swapping it out, the vehicle started right up and runs perfectly, no warning lights or glitches. Overall, a solid purchase that saved me a lot of time and trip to the dealer. Highly recommend this for anyone needing a reliable, ready-to-use replacement.
Lucas Cooper –
Received the ECM/ECU quickly and it was exactly as described. Installation was straightforward with no hiccups, truly plug and play as promised. My 2019 Mercedes GLS is running perfectly now, and the performance feels just like new. Customer support was also very helpful when I had a couple of questions before ordering.
Owen Hill –
I was a bit nervous about replacing the ECM myself, but this unit arrived perfectly programmed for my 2019 Mercedes GLS and made the whole process incredibly straightforward. It truly was plug-and-play—I didn’t have to mess with any complicated coding or settings after installation. Shipping was surprisingly quick, and the seller even responded promptly when I had a couple of questions before purchasing. Once installed, my car started right up with no issues, and all systems are running smoothly. Definitely saved me a ton on dealership fees, and I’m really impressed with the quality of this product.