Description
2011 Mercedes-Benz CLS550 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 CLS550 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
Cameron Rogers –
I was impressed with how quickly the ECM arrived after placing my order, and it was truly plug-and-play when it got here. Installing it was straightforward, and everything worked perfectly right away. The communication from the seller was excellent, answering my questions promptly. Choosing this unit saved me a significant amount compared to dealer prices, making it a great value overall.
Chase Adams –
Fast shipping and the ECU arrived perfectly programmed for my 2011 CLS550—plug-and-play setup made installation a breeze.
Benjamin Bailey –
I was really impressed with how quickly the ECM arrived after I placed my order—much faster than I expected. The unit came perfectly programmed for my 2011 Mercedes CLS550, and installation was straightforward; it was truly plug-and-play. This saved me a ton of money compared to what the dealer quoted me for a replacement ECU. The communication with the seller was clear and professional, which made the whole process stress-free. Overall, a fantastic experience and a smart choice for anyone needing this part.
Kyle Sharp –
I was a bit nervous about ordering an ECU online for my 2011 Mercedes CLS550, but this purchase exceeded my expectations. The unit arrived quickly with very reasonable shipping costs, which was a nice surprise. What really impressed me was how smoothly the VIN programming was handled—they took care of everything, so it was basically a plug-and-play experience. The car started up perfectly, and I could immediately feel the engine running smoother than before. Their attention to detail and quality really shows, and I’ll definitely turn to them for future needs.
Nathan Payne –
Fast shipping and the ECU was truly plug-and-play—saved me a bundle versus dealer costs. Installation went smoothly thanks to clear communication from the team.
Jason Taylor –
I was really impressed with how quickly this ECM arrived, especially with the free shipping option. The unit was already VIN programmed and worked flawlessly right out of the box, saving me a ton of installation hassle. Their team was very responsive when I had questions about the setup, which made the whole process smooth and stress-free. Overall, a top-notch product and service for my 2011 CLS550.