Audi A3 2021–2025 — technical service bulletin
Bulletin TSB_2081828_1 · NHTSA communication 11032203 · issued Apr 28, 2026
Technical service bulletin
communication type
Electrical System
component
2021–2025
model years
14
vehicle entries
Official summary
This bulletin provides information to address whistling noises during calls, which change with engine speed.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.