Description
2016 Mercedes-Benz GL450 3.0L AT gas ECM / ECU – Programmed | Plug&Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2016 Mercedes-Benz GL450 3.0L AT gas models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: 647-247-8555







Isaac Douglas –
I had some trouble with my 2016 Mercedes GL450’s ECM and was worried about finding a reliable replacement. This unit arrived VIN programmed and ready to go, which made installation a breeze. The team was very helpful, answering all my questions promptly and keeping me informed throughout the process. Shipping was fast and free, which was an unexpected bonus. After swapping it out, my truck runs like new again—highly recommend this service!
Harvey Hill –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2016 GL450—installation was a breeze.
Great communication throughout the process, and the ECU was ready to plug and play right out of the box.
Super fast turnaround and the unit works flawlessly; their professional programming really shows in the performance.
Shipping was very reasonable, and they answered all my questions promptly, which made this a stress-free purchase.
Received the updated ECM exactly as described, and the quality of the programming saved me a ton of time at the shop.
Harvey Bailey –
Fast shipping and a plug-and-play unit made installation a breeze. Saved me a ton compared to dealer prices and the service was super professional.
Aiden Foster –
I purchased the 2016 Mercedes GL450 3.0L AT gas ECM with VIN programming and was really impressed with the entire process. The unit arrived quickly with free shipping, which was a nice bonus. The programming was spot on, and it was essentially plug-and-play, making installation much easier than I expected. Customer service was also very responsive, answering my questions promptly and keeping me informed throughout the order.
Eric Palmer –
I purchased the 2016 Mercedes GL450 3.0L AT gas ECM and was really impressed by how quickly it arrived. The unit was truly plug-and-play, making installation straightforward without any hassle. The communication from the seller was excellent throughout, and their service definitely saved me a significant amount compared to dealer prices. Everything worked perfectly after installation, and I couldn’t be happier with the smooth experience.
Elijah Reynolds –
I was really impressed with how quickly this ECM arrived after I placed my order—definitely faster than I expected. The unit was exactly as described and was truly plug-and-play, which made the installation process straightforward even though I’m not a professional mechanic. The fact that it came VIN programmed saved me a ton of time and hassle. Compared to the dealer’s quote, this option was much more affordable and didn’t compromise on quality. Throughout the purchase, the communication was clear and helpful, so I felt confident in what I was getting. Overall, a hassle-free experience that brought my GL450 back to life without breaking the bank.