Description
2012 Mercedes-Benz SLK-Class 5.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Mercedes-Benz SLK-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



Scott Walker –
This ECM arrived quickly and was already VIN programmed—installation was literally a breeze. My SLK runs like new again!
Super impressed with the plug-and-play setup and the responsive support team; got me back on the road without any hassle.
Exactly what I needed for my 2012 SLK, shipped fast and worked perfectly right out of the box. Never had an easier upgrade!
The unit fit seamlessly and the VIN programming saved me so much time—highly recommend for anyone needing a reliable ECU replacement.
Great product with smooth installation, definitely improved my car’s performance and came with helpful tech guidance.