Description
2016 Mercedes-Benz SL550 4.7L AT gas ECM / ECU – Programmed | Plug&Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2016 Mercedes-Benz SL550 4.7L 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: 647-247-8555



Joel Carter –
I purchased the 2016 Mercedes SL550 4.7L AT ECM, and I was really impressed with the plug-and-play setup. It arrived quickly with free shipping, which was a nice bonus. The unit was already VIN programmed, saving me a lot of hassle, and it worked perfectly right out of the box. Communication with the seller was clear, and they responded promptly when I had questions during the process.
Cooper Moore –
I purchased the 2016 Mercedes SL550 ECM and was really impressed by how quickly it arrived—shipping was faster than I expected. The unit was genuinely plug-and-play, making installation straightforward and hassle-free. The updated VIN programming worked perfectly, and I saved a significant amount compared to dealer prices. The communication throughout the process was clear and professional, which made the whole experience stress-free.
Matthew Russell –
Fast shipping and a perfect plug-and-play fit saved me a ton compared to dealer prices—installation was a breeze and the team was super helpful throughout.
Cooper Graham –
Great quality ECM, arrived quickly with free shipping and worked perfectly right out of the box. The team kept me informed throughout the whole process, which made the experience smooth and hassle-free.