Audi A5 2025–2026 — technical service bulletin
Bulletin TSB_2078914_4 · NHTSA communication 11027409 · issued Dec 18, 2025
Technical service bulletin
communication type
Engine
component
2025–2026
model years
12
vehicle entries
Official summary
This bulletin provides information when the MIL is on, DTC P064F00 stored in the ECM.
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.