Description
2019 Mercedes-Benz GLC300 2.0L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Mercedes-Benz GLC300 2.0L AT gas 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




Robert Willis –
I recently purchased the 2019 Mercedes GLC300 2.0L AT gas ECM from this seller, and I’m very impressed with the professionalism throughout the process. The ECU came VIN programmed and ready to install, which made the whole setup incredibly straightforward. Shipping was fast and free, and the seller kept me informed every step of the way. The quality of the part is excellent, and my car runs like new again.
Noah Little –
The plug-and-play setup was flawless, and their communication kept me informed every step of the way. Shipping was quick and hassle-free too.