Description
2009 Mercedes-Benz G550 5.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Mercedes-Benz G550 5.5L 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: Local: 647-247-8555 | Toll-Free: 1-800-915-5566



Scott Scott –
I was really impressed with how quickly the 2009 Mercedes G550 ECM arrived after I placed the order. When it came, the unit was exactly as described and truly plug-and-play, which made the installation straightforward without any complications. The fact that it was already VIN programmed saved me a lot of headaches and trips to a mechanic. Compared to the dealer’s price, this service was a huge money saver. The communication throughout the process was clear and professional, making the whole experience stress-free from start to finish. I’d definitely recommend this to anyone needing a replacement ECM.
Elliot Chapman –
Fast shipping and a true plug-and-play unit—saved me a bundle versus the dealer. Installation went smoothly and the customer support was top-notch.
Owen Marshall –
I’m really impressed with this ECM for my 2009 Mercedes G550. The unit arrived quickly, and installation was seamless since it was truly plug-and-play—no complicated programming needed on my end. The communication from the seller was clear and professional throughout, which made the whole process stress-free. Compared to dealer prices, this service saved me a significant amount of money without sacrificing quality or reliability.
Joel Wilson –
Exactly what I needed for my G550—VIN programmed and ready to go. Shipping was quick and free, which made the whole process super easy.