Description
2013 Mercedes-Benz S-Class 3.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2013 Mercedes-Benz S-Class 3.5L 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
Samuel Stewart –
I recently installed this ECM on my 2013 Mercedes-Benz S-Class, and I couldn’t be happier with how smooth the whole process was. The fact that it was already VIN programmed saved me so much hassle, and I was up and running within an hour. Shipping was surprisingly quick, which made a last-minute repair much less stressful. The engine runs flawlessly now, and the car drives just like it did when new. If you need a reliable, ready-to-go ECU, this is definitely the one to get.
When my S-Class started having engine management issues, I was worried about the complicated ECU replacement process. Thankfully, this VIN programmed unit made everything incredibly straightforward. The plug-and-play setup really lived up to its name—no fiddling with wires or extra programming needed on my end. The support team was also very responsive when I had a few questions, which gave me extra confidence. Overall, it’s like buying a brand-new engine brain at a fraction of the cost, and it
Hunter James –
The ECM arrived exactly as described and was perfectly programmed to my 2013 Mercedes-Benz S-Class. Installation was straightforward with no modifications needed, which saved me a lot of time and hassle. The shipping was quick, and the support team was very responsive when I had a couple of questions. Overall, this was a seamless experience and the car runs smoothly now.
Carlos Perez –
I was a bit nervous about ordering an ECM/ECU for my 2013 Mercedes-Benz S-Class, but this unit arrived quickly and fit perfectly. The VIN programming meant I didn’t have to mess with complicated coding, which saved me a lot of time and frustration. Installation was straightforward—just plug it in and go. Ever since swapping it out, the car runs smoothly with no warning lights or issues. I really appreciate the support team who answered my questions promptly. Overall, a fantastic experience from start to finish.
Travis Hall –
Installed this ECM in under 20 minutes with zero issues—car runs perfectly now, couldn’t be happier!