Description
2012 Mercedes-Benz GL350 3.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz GL350 3.5L 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



Jack King –
Received my 2012 Mercedes GL350 ECM quickly with free shipping, and it was ready to go right out of the box—super convenient and hassle-free!
Trevor Young –
I was really impressed with how smooth the entire process was. The ECU arrived quickly, and the fact that it was already VIN programmed saved me a lot of hassle. Their communication stood out to me—they responded to my questions promptly and kept me in the loop every step of the way. Installation went without a hitch, and my GL350 runs perfectly now. It’s clear they take pride in delivering quality products and top-notch service.
Lucas Murray –
Super fast shipping and the unit was truly plug-and-play. Saved me a bundle versus dealer pricing and the install went without a hitch.
Russell Poole –
I’m really impressed with the quality of the ECM for my 2012 Mercedes GL350. The unit arrived quickly with free shipping, which was a nice bonus. What stood out was how seamlessly it was VIN programmed and ready to go right out of the box. Installation was straightforward, and my vehicle runs perfectly now with no issues.
Max Payne –
I’m really impressed with this ECM for my 2012 Mercedes GL350. The unit arrived quickly and was truly plug-and-play, which made installation hassle-free. The communication from the seller was clear and professional throughout the entire process. This service saved me a ton compared to what the dealer quoted, and the updated programming works perfectly with my vehicle.
Samuel Hudson –
I was a bit nervous about ordering an ECM online, but this 2012 Mercedes GL350 unit arrived quickly with free shipping, which was a nice surprise. The ECU came fully VIN programmed, and the plug-and-play setup made installation a breeze. Their team was great about answering my questions promptly, which really eased my mind throughout the process. Since swapping it in, my truck runs perfectly with no warning lights or hiccups. Overall, a smooth experience from start to finish.