B9-FL / 35 TFSI (1.5)
Audi A4 OBD Unlock Patch
Audi A4 OBD Unlock Patch service using AutoTuner Bench Patch compatibility, listed by model year, controller coverage, and request intake at Cedar.
OBD unlock catalog
Audi A4 OBD unlock patches
Open the exact vehicle page to review controller coverage and request the unlock service.
2026 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2025 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2024 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2023 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2022 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2021 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2020 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2019 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
2018 Audi A4 B9-FL ECU OBD Unlock Patch
35 TFSI (1.5) / B9-FL · AutoTuner Bench Patch
ECU access coverage
Audi A4 OBD unlock details
9 vehicle listings across 2018-2026.
Controller compatibility is confirmed from the actual ECU before service.
This service is the OBD unlock patch only; any tune is selected separately.