Description
2019 Audi S4 3.0L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Audi S4 3.0L 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
Henry Johnson –
The plug-and-play setup was flawless, and the car runs like new—highly recommend this ECM for anyone needing a quick fix. Fast delivery and zero hassle!
Aiden Parker –
I was a bit nervous about swapping out the ECM/ECU myself, but this unit made the whole process surprisingly smooth. It arrived quickly and was already programmed to my car’s VIN, so installation was straightforward—no complicated setups or trips to the dealership needed. Once installed, my S4 fired up perfectly and runs just like it did from the factory. The difference in performance is noticeable, and I really appreciated how professional the tech support was when I had a quick question. Overall, a great buy that saved me time and hassle.
Elijah Turner –
This ECM arrived quickly and was exactly what I needed for my 2019 Audi S4. Installation was straightforward, and it truly was plug-and-play—no complicated programming on my end. The vehicle started right up and runs smoothly now, and I appreciated the helpful customer support when I had a couple of questions. Definitely a reliable replacement part that saved me time and hassle.