Description
2013 Mercedes-Benz E300 3.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2013 Mercedes-Benz E300 3.5L 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



Jorge Stewart –
I was really impressed with how smoothly this ECM arrived—free shipping made the whole purchase even better. The unit came fully VIN programmed, so installation was straightforward without any extra hassle. After swapping it in my 2013 Mercedes E300, everything fired up perfectly and the car runs like new again. The seller also kept me updated throughout the process, which gave me confidence that I made the right choice. Definitely a reliable option if you need a quality replacement ECM.
Spencer Payne –
Fast shipping and the ECU arrived perfectly programmed—plug-and-play with zero hassle. This saved me a bundle compared to dealer prices and the installation went smoothly.
Gavin Cox –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2013 Mercedes E300—installed hassle-free and runs flawlessly.
Keith Turner –
The 2013 Mercedes E300 ECM arrived quickly and was exactly as described. What impressed me most was the VIN programming service—they handled everything so the unit was ready to install right out of the box. Customer support was very responsive and kept me informed throughout the process, which made the whole experience smooth and worry-free. Shipping was also free, which was a great bonus.
Nicholas Mitchell –
I was a bit nervous about ordering an ECU online, but this 2013 Mercedes E300 3.5L ECM arrived quickly and was already VIN programmed, which made installation straightforward. The team provided excellent communication throughout the process, promptly answering all my questions and reassuring me about compatibility. I really appreciated the free shipping, which saved me some extra costs. Once installed, my car ran smoothly without any hiccups, just like new. Overall, a reliable product and professional service that I’d recommend to anyone needing an ECU replacement.