Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Audi A4 2021–2025technical service bulletin

Bulletin A0124462071243_3 · NHTSA communication 11011243 · issued Nov 27, 2024

Technical service bulletin
communication type
Engine
component
2021–2025
model years
25
vehicle entries

Official summary

This bulletin provides information when there are whistling noises from the turbo charge at 1500 - 2200 rpm and apprximately 70% load.

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.