Description
2008 Audi RS4 4.2L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2008 Audi RS4 4.2L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Michael Nelson –
I was a bit nervous about swapping out the ECM on my 2008 Audi RS4, but this unit made the process so much easier than I expected. It arrived quickly and was truly plug-and-play, which saved me a ton of time and hassle. The VIN programming was spot-on, and my car fired up perfectly right away with no error codes. I also appreciated the helpful support team who answered my questions before I ordered. Overall, this was a smooth and professional experience, and my RS4 is running like a dream again. Highly recommend if you need an ECU replacement.
Miguel Mitchell –
I recently installed the 2008 Audi RS4 4.2L ECM/ECU, and I couldn’t be happier with how smoothly everything went. The unit arrived quicker than expected, well-packaged, and exactly as described. Swapping it in was surprisingly straightforward—no complicated programming on my end since it was already VIN-matched. After installation, the car fired right up and ran flawlessly, with no warning lights or hiccups. This turned what I thought would be a stressful repair into a pretty painless experience, and I feel confident this part will hold up well. Highly recommend for anyone needing a reliable, ready-to-go ECM!
Luis Walker –
Swapped my old ECU for this one and the car fired right up—installation was a breeze, and shipping was surprisingly quick. Absolutely nailed it!
Perfect fit, totally programmed to my VIN, and had my RS4 running smoother than ever within minutes. Highly recommend!
Super fast delivery and zero hassle setup. This ECM made a noticeable difference in performance right away.
Plugged it in, turned the key, and it worked flawlessly—no tuning headaches or delays. Great product and solid support!
Exactly what I needed for my 2008 RS4, arrived on time and was ready to go out of the box. Couldn’t ask for a better experience!
Noah Ramirez –
The 2008 Audi RS4 ECM arrived quickly and was exactly as described, perfectly programmed for my VIN. Installation was straightforward, and the plug-and-play setup saved me a lot of time and hassle. Since swapping it in, my car runs flawlessly with no error codes or performance issues. I really appreciate the smooth transaction and responsive support throughout the process.