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








Dylan Richardson –
I was a bit nervous ordering an ECU online, but this 2008 Mercedes-Benz CLK-Class unit exceeded my expectations. It arrived quicker than I thought, well-packaged and ready to go. Installation was surprisingly straightforward—just plug it in and the car fired up without a hitch. The VIN programming was flawless, and my car runs smoothly now, just like before. If you need a replacement ECM that’s hassle-free, this is the one to get. The support team was also quick to answer my questions, which made the whole process stress-free.
Tyler Allen –
I was a bit nervous about replacing the ECU myself, but this unit fit perfectly and was already programmed to my VIN, so installation was straightforward. The shipping was quick, arriving well-packed and on time, which was a relief. Once installed, my CLK fired up immediately with no error codes or issues. Definitely a quality product that saved me time and a trip to the dealer.
James Phillips –
Exactly what I needed—plugged in perfectly and my CLK is running flawlessly again. Super quick delivery too!
This ECM fit right in without any hassle and got my car back on the road fast. Highly recommend for anyone needing a smooth install.
The VIN programming was spot on, and the part worked like a charm from the start. Shipping was speedy, which was a big plus.
No issues whatsoever; it was truly plug and play. Support was helpful when I had a quick question, making the process stress-free.
I’ve had this installed for a few weeks now and it’s performing just like the original—worth every penny!
Noah Bailey –
I was a bit nervous about ordering a replacement ECU for my 2008 Mercedes CLK, but this unit exceeded my expectations. It arrived quickly and was already VIN programmed, which made installation a breeze. The plug-and-play setup saved me from having to take it to a mechanic, and the car fired right up without any issues. I also appreciated the helpful customer support when I had a couple of questions before ordering. Overall, this was a smooth, hassle-free experience that got my car back on the road in no time. Highly recommend it to anyone facing a similar repair!