Description
2009 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 2009 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
Carlos Reed –
I ordered the 2009 Mercedes CLS550 ECM and was pleasantly surprised by how smooth the whole process went. The unit arrived quickly, and the shipping cost was very reasonable, which I appreciated. What really stood out was their programming service; my VIN was already programmed, so installation was truly plug-and-play. I had a few questions before buying, and their team responded promptly with detailed answers. Overall, it felt like a hassle-free experience from start to finish, and my car runs perfectly now.
Brian Harrison –
I was a bit nervous about buying an ECM online, but this 2009 Mercedes CLS550 unit arrived quickly with free shipping, which was a nice surprise. The best part was that it came VIN programmed, so installation was basically plug-and-play, saving me a ton of hassle. The quality of the part exceeded my expectations—I noticed my car runs smoother and more responsive now. Whenever I had a question about the setup, their team responded within hours, which made the whole process stress-free. Overall, a great experience from start to finish.
Cooper Johnson –
Super fast shipping and the ECU was truly plug-and-play. Saved me a ton compared to dealer prices, and installation was hassle-free.
Joel Gonzalez –
I purchased the 2009 Mercedes CLS550 ECM and was really impressed by the fast turnaround and the quality of the programming. The unit arrived VIN programmed and ready to install, which saved me a lot of time and hassle. Shipping was very reasonable, and the seller kept me informed throughout the entire process. It worked perfectly on the first try, and I couldn’t be happier with the service.
Cooper Hill –
I’m really impressed with this ECM for my 2009 Mercedes CLS550. The unit arrived quickly and was completely plug-and-play, which made the installation much easier than I expected. The whole process was smooth, and the professional service saved me a ton compared to what the dealership quoted. Communication throughout was clear, and I couldn’t be happier with how everything turned out.
Dominic Russell –
Fantastic experience—ECU arrived quickly with free shipping and was perfectly programmed for my CLS550. The communication was spot on, keeping me informed every step of the way.
Austin Barrett –
I was a bit nervous ordering an ECM online for my 2009 Mercedes CLS550, but this unit arrived incredibly fast and was truly plug-and-play. Installation went smoothly with no hiccups, and the VIN programming was spot on, so there was no delay getting my car back on the road. The difference in price compared to the dealer was huge — this service saved me a ton of money, which was a relief. Communication throughout was clear and professional, answering all my questions promptly. Overall, a seamless experience that I’d highly recommend to anyone looking for a reliable ECM replacement.