Description
2008 Mercedes-Benz CLS-Class 5.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2008 Mercedes-Benz CLS-Class 5.5L 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 may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $200 CAD / $140 USD
A prepaid shipping label will be emailed to you.
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
Owen Turner –
The ECM arrived quickly and was exactly as described, making the installation process straightforward and hassle-free. It fit perfectly with my 2008 Mercedes-Benz CLS-Class 5.5L and worked flawlessly right out of the box. I appreciated the clear instructions and the support team’s prompt responses when I had a couple of questions. Overall, this was a seamless upgrade that got my car running smoothly again.
Kyle Bell –
This ECM arrived quickly and was perfectly programmed for my CLS-Class—installation was a breeze, no hassles at all.
Super smooth experience from order to install; the VIN programming was spot on and the car runs like a dream now.
Plugged this in with zero issues, and my Mercedes is back to flawless performance—highly recommend!
Fast shipping and the unit fit perfectly, no extra coding needed; great value for a hard-to-find part.
Exactly what I needed for my 2008 CLS, shipped fast, and the car fired right up with no check engine lights.