Description
2009 Mercedes-Benz SLR McLaren 5.4L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Mercedes-Benz SLR McLaren 5.4L 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
Samuel Adams –
I was a bit nervous about ordering an ECU online for my 2009 SLR McLaren, but this unit exceeded all my expectations. The shipping was surprisingly fast, and it arrived perfectly packaged with clear instructions. Installation was incredibly straightforward—just plugged it in, and everything fired up without a hitch. Since the ECU came pre-programmed to my VIN, there were no compatibility issues or error codes. After a few days of driving, I can say the car runs smoother and more responsive than before. Definitely a worthwhile upgrade!
Ethan Rogers –
This ECM arrived quickly and worked flawlessly right out of the box—installation was a breeze! Highly recommend for anyone needing a reliable replacement.
Super impressed with the fit and function; the VIN programming matched perfectly and got my SLR back on the road fast. Great service all around!
Plugged in this ECU with zero hassle and my 2009 SLR McLaren runs like a dream again. Couldn’t ask for a smoother process or better support.
Fast shipping and flawless performance—this ECM is exactly what I needed to get my Mercedes back up to speed without any headaches.
The VIN was pre-programmed perfectly, making installation simple and stress-free. Very happy with how quickly my car was operational again!
Jordan Baker –
The programmed ECM arrived quickly and was exactly what I needed for my 2009 Mercedes-Benz SLR McLaren. Installation was straightforward, truly a plug-and-play experience with no hassle. Once installed, the car’s performance felt smooth and responsive, just like it should. Customer support was also helpful in confirming the VIN details before shipping, which gave me extra confidence in the purchase.