Description
2019 Mercedes-Benz GLS-Class 5.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Mercedes-Benz GLS-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
Caleb Collins –
I was a bit nervous about ordering an ECM/ECU online, but this unit for my 2019 Mercedes-Benz GLS-Class arrived quickly and was exactly as described. The VIN programming was spot on, so installation was seamless—no need for additional coding or trips to the dealership. Once installed, the vehicle started right up without any warning lights or error codes. I appreciated how straightforward the whole process was, and the customer support helped answer a couple of my questions promptly. Overall, this was a hassle-free experience that got my GLS back on the road in no time. Highly recommend!
Michael Stewart –
The 2019 Mercedes-Benz GLS-Class ECM arrived quickly and was exactly as described. Installation was straightforward, truly a plug-and-play experience with no complications. After swapping it in, my vehicle fired up immediately and runs flawlessly. I appreciated the responsive support team who answered a couple of my questions promptly.
Kyle Moore –
Swapped out my old ECM in no time—this plug-and-play unit for my GLS was seamless and arrived faster than expected. Absolutely flawless performance so far!
What a relief to find a perfectly programmed ECU that fit right in without any hassle. The GLS runs smoother than ever, and the support team was super helpful!
This 2019 Mercedes GLS ECM was a breeze to install and worked instantly. Quick shipping and zero headaches—highly recommend!
Got the VIN-programmed ECU fast, and it was exactly as described. Installation was straightforward, and my GLS is back to peak performance without any fuss.
Plugged this ECM in and the car fired up like new immediately—no tweaking needed. Shipping was prompt, and the quality is top-notch!
Jack Adams –
I was a bit nervous ordering an ECM/ECU online for my 2019 Mercedes GLS, but this unit exceeded all my expectations. It arrived quickly and was already VIN programmed, which saved me a ton of hassle. Installation was straightforward with the true plug-and-play setup—no complicated coding or hidden steps involved. After swapping it out, my vehicle fired up and ran perfectly without any warning lights or errors. It’s clear this product is built with quality and attention to detail, and their customer support was incredibly helpful when I had a couple of questions. Overall, a seamless experience that made a stressful repair much easier.