Description
2007 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 2007 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



Scott Watson –
I was a bit nervous about buying an ECM online, but this 2007 Mercedes R320 3.0L AT diesel ECU came perfectly programmed to my VIN, so installation was seamless. The seller provided excellent communication throughout the process, promptly answering my questions and keeping me updated on the shipping status. Shipping was surprisingly fast and reasonably priced, which was a nice bonus. Since installing it, my truck runs smoothly with no hiccups, and I couldn’t be happier with the quality of the unit. Definitely a reliable source for anyone needing a plug-and-play solution.
Bruce Kelly –
The ECU arrived quickly with free shipping and was fully programmed—installed with zero hassle. Their communication was spot-on throughout the process.
Michael Hudson –
I purchased the 2007 Mercedes R320 3.0L AT diesel ECM from this seller and was really impressed with how smoothly the entire process went. The ECU arrived quickly with free shipping, and it was already VIN programmed, so installation was straightforward. I reached out with a few questions before buying, and their customer service responded promptly and clearly, which gave me confidence in the purchase. Overall, the unit works perfectly, and I couldn’t be happier with the quality and support.