Description
2013 Mercedes-Benz S550 4.7L AT gas ECM / ECU – Programmed | Plug&Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2013 Mercedes-Benz S550 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



Matthew Stewart –
Fast shipping and the plug-and-play ECU fit perfectly. Saved me a bundle versus the dealer and installation was a breeze.
Luis Douglas –
I was really impressed with how quickly this 2013 Mercedes S550 ECM arrived—shipping was surprisingly fast. The unit was fully programmed to my VIN and was truly plug-and-play, which made installation smooth and hassle-free. Choosing this option saved me a significant amount compared to dealer prices, and the seller’s clear communication throughout the process was a big plus. Overall, a professional service that I would definitely recommend.
Dominic Lewis –
I was really impressed with how quickly the ECM arrived after placing my order. It was fully VIN programmed and ready to go, which made the installation completely plug-and-play. I had been dreading the cost of getting this part replaced at the dealer, so finding this option saved me a ton of money. The whole process was smooth, and the sellers were very communicative when I had questions. After swapping the unit in, my S550 started right up with no issues. Overall, a great experience from start to finish.
Oliver Miller –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2013 S550 — installation was straightforward and hassle-free.
Matthew Lawrence –
I purchased the 2013 Mercedes S550 4.7L gas ECM and was impressed by the smooth plug-and-play setup. The unit arrived quickly with free shipping, which was a great bonus. Their team kept me informed throughout the process, answering all my questions promptly. Overall, the updated module performed flawlessly, restoring my car’s performance perfectly.