Description
2021 Audi S5 3.0L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2021 Audi S5 3.0L AT gas 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 require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
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
Isaac Howard –
The VIN programmed ECU arrived quickly with free shipping, and the setup was completely plug-and-play—couldn’t be easier.
Their communication was spot-on; they answered all my questions fast and made the whole process smooth.
Fast turnaround and the programming service was top-notch, got my Audi running perfectly again in no time.
Shipping was super reasonable, and the quality of the ECM exceeded my expectations for the price.
They provided professional programming and kept me in the loop the entire time—highly recommend.
Aaron Nichols –
I purchased the 2021 Audi S5 3.0L AT gas ECM, and it arrived quickly with free shipping, which was a pleasant surprise. The ECU was VIN programmed and ready to install right out of the box, making the setup completely plug-and-play. The quality of the unit is outstanding, and my car runs perfectly now. The whole process was smooth and hassle-free.