Audi A5 2025 — technical service bulletin
Bulletin TSB_2078871_1 · NHTSA communication 11022654 · issued Aug 1, 2025
Technical service bulletin
communication type
Engine
component
2025
model years
6
vehicle entries
Official summary
This bulletin provides information when the engine warning lamp (MIL) is on - DTC U041800.
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.