Description
2012 Mercedes-Benz SL550 5.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz SL550 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
Austin Clark –
Fast shipping and the ECU arrived perfectly programmed for my SL550—installation was a breeze!
Neil Payne –
I was a bit nervous ordering an ECU online for my 2012 Mercedes SL550, but this unit arrived exactly as described and was already VIN programmed, which made installation a breeze. The shipping was surprisingly fast and didn’t cost an arm and a leg, which I really appreciated. What stood out most was the seller’s communication—they kept me in the loop every step of the way and promptly answered all my questions. After installing it, my car runs smoothly again, just like new. Overall, a great experience from start to finish!
Russell Howard –
I’m really impressed with the 2012 Mercedes SL550 ECM I purchased. The shipping arrived quickly, and the unit was truly plug-and-play, making the installation hassle-free. Compared to the dealer’s price, this saved me a significant amount of money, and the communication from the seller was clear and professional throughout the process. Overall, a smooth experience from start to finish.
Henry Adams –
Fast shipping and the plug-and-play unit worked perfectly in my 2012 SL550, saving me a bundle compared to dealer prices. The installation was hassle-free and the communication was spot on.
Dominic Perez –
I recently purchased the 2012 Mercedes SL550 5.5L ECM and was really impressed by how smooth the whole process was. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was the professional VIN programming service they provided—everything was perfectly calibrated and ready to install right out of the box. The communication was also top-notch; they answered all my questions promptly and kept me informed throughout.