Description
2008 Mercedes-Benz GL-Class 5.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2008 Mercedes-Benz GL-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






John Brooks –
This ECM arrived quickly and was exactly as described—installed without any hassle and my GL-Class runs like new again. Super happy with the smooth plug-and-play setup!
Perfect fit for my 2008 Mercedes, programmed right out of the box. The install was straightforward, and customer support was really helpful when I had questions.
Got my ECU fast and it was ready to go on arrival. Literally just plugged it in and everything worked flawlessly—highly recommend for anyone needing a quick fix!
Fantastic product that saved me a ton of time and stress. Shipping was speedy and the module was already VIN programmed, making installation a breeze.
This ECM was spot on and shipped faster than I expected. Plug-and-play truly means plug and play—my GL-Class fired right up with no issues at all.