Description
2011 Mercedes-Benz S550 5.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2011 Mercedes-Benz S550 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
Noah Rogers –
Fast shipping and plug-and-play unit made installation a breeze; definitely saved me a bundle compared to dealer prices. Great communication throughout and very professional service.
Steven Gonzalez –
I was really impressed with how quickly the ECM arrived after I placed my order. Installing it was straightforward since the unit was truly plug-and-play, which saved me a ton of hassle. The car fired right up and has been running perfectly ever since. I was prepared for a long wait and a costly dealer visit, but this service not only sped things up but also saved me a significant amount of money. The communication throughout the process was clear and professional, making the whole experience stress-free. Definitely recommend if you’re looking to replace your ECU without breaking the bank.
Keith Phillips –
I was a bit nervous ordering an ECM online, but this 2011 Mercedes S550 unit arrived exactly as described and was already VIN programmed, which saved me a lot of hassle. The shipping was surprisingly fast and affordable, arriving well within the estimated timeframe. What impressed me most was the clear communication—I had a few questions before purchasing and they responded quickly and thoroughly. Installation was straightforward thanks to the plug-and-play setup, and my car is running smoothly now. Overall, a great experience from start to finish.
Cooper Parker –
I was impressed by how quickly this ECM arrived with free shipping included. The VIN programming was spot on, and it fit perfectly in my 2011 Mercedes S550 without any issues. The seller kept me informed throughout the process and was very responsive when I had a few questions. Overall, a smooth experience and great quality part.
Dylan Rogers –
The ECU arrived quickly with free shipping, and the VIN programming was flawless—car started right up without a hitch. Customer support was also very responsive when I had a couple of questions.
David Rivera –
I was a bit nervous ordering an ECM online, but this 2011 Mercedes S550 ECM arrived quickly and was exactly as described. What really impressed me was the VIN programming service—they handled all of that for me, so the unit was ready to go straight out of the box. The shipping was super reasonable too, which made the whole process feel even better. I reached out with a couple of questions during the order, and their customer service was prompt and very helpful. After installation, my car runs perfectly again, just like new.
Jason Sanders –
I ordered the 2011 Mercedes S550 ECM and was pleasantly surprised by how quickly it arrived. The unit was truly plug-and-play, making installation straightforward and hassle-free. Compared to dealer prices, this saved me a significant amount of money, and their communication throughout the process was excellent. Definitely a professional service that I would recommend to anyone needing an ECM replacement.