Description
2008 Mercedes-Benz R320 3.0L AT diesel ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2008 Mercedes-Benz R320 3.0L AT diesel models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566



Andrew Lopez –
I was a bit nervous about ordering a programmed ECM for my 2008 Mercedes R320, but this experience exceeded my expectations. The unit arrived quickly with free shipping, which was a nice bonus. What really stood out was how well they programmed it to match my VIN—plug-and-play was exactly how it worked once I installed it. They also kept me updated throughout the process, answering all my questions promptly. My truck runs smoother than before and I’m really happy with the service overall. Definitely recommend if you need a reliable ECM replacement without the hassle.
Aaron Murray –
ECM arrived quickly with free shipping, and the plug-and-play setup saved me a ton of time—highly recommend!
Dominic Murphy –
I was really impressed with how quickly this ECU arrived, and the free shipping was a nice bonus. The unit came VIN programmed and ready to install, which saved me a lot of time and hassle. Customer service was responsive and kept me informed throughout the process, making the whole experience smooth and worry-free. After installation, my R320 runs perfectly, and I’m very happy with the quality.