Audi A4 2023–2025 — technical service bulletin
Bulletin TSB_2075261_2 · NHTSA communication 11018976 · issued May 21, 2025
Technical service bulletin
communication type
Engine
component
2023–2025
model years
10
vehicle entries
Official summary
This TSB provides information when the engine warning lamp is on - P016900 DFCC 45233 incorrect fuel detection - 4-cyl. 2.0 TFSI.
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.