Description
2020 Audi S3 2.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2020 Audi S3 2.0L 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:
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
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
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



Ryan Bailey –
Swapped out my old ECU in no time—perfect fit and the car runs smoother than ever. Super impressed with how quick and easy the install was!
Eric Lewis –
I was a bit nervous ordering an ECU online, but this 2020 Audi S3 unit arrived quickly and was exactly as described. The VIN was already programmed, so installation was effortless—just plug it in and you’re good to go. Since the swap, the car runs smoother and feels more responsive, definitely worth the investment. Support was very helpful when I had questions, which made the whole process stress-free.
Lucas Rivera –
I recently installed the 2020 Audi S3 ECM, and I have to say, it exceeded my expectations. The unit arrived quickly and was exactly as described—VIN programmed right out of the box, which saved me a ton of hassle. Installation was surprisingly straightforward, even for someone who isn’t a professional mechanic. Once everything was connected, my car fired up without a single hiccup. It’s clear this was designed with the user in mind, and the performance improvements are noticeable. Definitely worth the investment if you want a hassle-free upgrade.