Description
2007 Mercedes-Benz S-Class 5.5L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2007 Mercedes-Benz S-Class 5.5L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566




Logan Allen –
The ECM arrived quickly and was perfectly programmed for my S-Class—installation was seamless and it runs like a charm. Couldn’t ask for a smoother swap!
Adrian Edwards –
Installed the ECM in my 2007 S-Class and it worked perfectly right out of the box. The VIN programming was spot on, so there was no need for any additional coding or adjustments. Shipping was quick, and the support team was helpful when I had a couple of questions before ordering. Definitely a hassle-free upgrade that restored my car’s performance.
Jacob Cooper –
I was a bit nervous about ordering an ECM/ECU online for my 2007 Mercedes S-Class, but this unit came exactly as described and was already VIN programmed, which saved me so much hassle. The installation was straightforward—truly plug and play—and my car fired right up without any error codes. Shipping was surprisingly quick, and I appreciated the helpful guidance from their tech support when I had a couple of questions. It’s been a few weeks now, and everything is running smoothly with no glitches. Definitely a solid purchase that restored my car’s performance without breaking the bank.