Description
2008 Mercedes-Benz SL550 5.5L AT gas ECM / ECU – Programmed | Plug&Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2008 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: 647-247-8555
Mark Miles –
I needed a replacement ECM for my 2008 Mercedes SL550, and this unit fit perfectly. The VIN was already programmed, so installation was straightforward and plug-and-play, which saved me a lot of hassle. The shipping was surprisingly fast and affordable, arriving well within the timeframe they promised. I also appreciated how responsive their team was when I had a few questions before purchasing. Overall, the quality of the ECM feels just like the original, and my car runs smooth again. Highly recommend this seller for anyone needing a reliable ECU.
Cole Ward –
Fast shipping and a plug-and-play unit made the swap super easy. The price was way better than the dealer, and their communication was top-notch.
Owen Stewart –
Received my programmed ECU quickly with free shipping—installation was straightforward and the car runs perfectly now.
Patrick Brown –
I was really pleased with how smoothly the whole process went from start to finish. The ECU arrived quickly, and the fact that it came VIN programmed saved me a ton of hassle—just plug and play. Shipping was surprisingly affordable too, which was a nice bonus. Their team kept me in the loop the entire time, answering my questions promptly and professionally. My SL550 runs perfectly now, and I couldn’t be happier with the quality of their work.
Michael Richardson –
I was really impressed with how quickly this ECM arrived, and the free shipping was a nice bonus. The unit came VIN programmed and ready to install, which saved me a lot of hassle. The communication was excellent too—they answered all my questions promptly and kept me informed throughout the process. Overall, a smooth and professional experience from start to finish.