Description
2010 Mercedes-Benz C300 3.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2010 Mercedes-Benz C300 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
Chris Hill –
I was really impressed with how quickly this ECM arrived and how easy it was to install—it was truly plug-and-play with no issues. The unit was perfectly programmed to my VIN, which made the whole process seamless. Choosing this option saved me a significant amount compared to dealer prices, and the seller’s communication throughout was clear and professional. Overall, it was a smooth experience from start to finish.
Harrison Campbell –
The ECU arrived quickly with free shipping and worked perfectly right out of the box—definitely recommend their plug-and-play programming service.
Liam Edwards –
I needed a replacement ECM for my 2010 Mercedes C300 and was a bit nervous about ordering online. This unit arrived exactly as described, already VIN programmed which made installation a breeze. The shipping was very reasonable too, which was a nice bonus. What impressed me most was how quickly they responded to my questions and kept me updated throughout the entire process. After installation, my car runs perfectly, no issues at all. Highly recommend this seller for anyone needing quality parts with great service.
Ethan Webb –
I bought the 2010 Mercedes C300 ECM from this seller and was really impressed with the whole experience. The unit arrived quickly with free shipping, which was a great bonus. What stood out most was the seamless plug-and-play setup — it fit perfectly and worked right away without any hassle. Customer support was also very responsive, answering my questions promptly and making the process stress-free.
Max Lewis –
Fast shipping and a perfect plug-and-play fit made installation a breeze. Saved me a ton compared to dealer pricing and the support was really responsive.