Description
2012 Mercedes-Benz CL63 5.5L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz CL63 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



Matthew Jenkins –
I was a bit nervous about ordering an ECU online for my 2012 Mercedes CL63, but this experience exceeded my expectations. The unit arrived quickly with free shipping, and everything was perfectly programmed to my VIN before it even shipped. Installation was straightforward thanks to their plug-and-play setup, and my car has been running smoothly ever since. The whole process was hassle-free, and I appreciated how they kept me informed every step of the way. Definitely a reliable source if you need a quality ECM replacement.
Nathan Wright –
I was impressed with how quickly the programmed ECM arrived, and the free shipping was a great bonus. Installation was straightforward since it came VIN programmed, so no extra hassle or trips to the dealer. The quality feels top-notch, and the car runs perfectly now. Customer service was also very responsive when I had a few questions before ordering.
Michael Evans –
I recently purchased the 2012 Mercedes CL63 5.5L AT gas ECM from this seller, and I’m really impressed. The unit arrived quickly with free shipping, which was a nice bonus. What stood out was how smoothly the VIN programming was handled—I didn’t have to worry about a thing, it was practically plug-and-play. Communication was excellent too; they kept me in the loop every step of the way, which made the whole process stress-free. My car is running perfectly now, and I’d definitely recommend them to anyone needing a reliable ECU.
Carlos Cook –
Fast shipping and the ECU was perfectly programmed for my 2012 CL63—no hassle at all. Excellent service throughout.
Kevin Reynolds –
I’m very pleased with the 2012 Mercedes CL63 ECU I received. The shipping was surprisingly quick, and the unit was completely plug-and-play, making installation hassle-free. The team’s communication was clear throughout, and the updated programming worked perfectly right out of the box. Choosing this service saved me a significant amount compared to dealer pricing, which was a huge relief.
Lucas Lewis –
Fast shipping and the plug-and-play ECU fit perfectly in my 2012 CL63. Saved me a bundle versus dealer prices and the installation was hassle-free.