U0300 on the 2017 Audi A4
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| A3923542048671_6 | 2023-06-06. Service bulletin. This bulletin provides a software update for when "All Wheel Drive Malfunction Message" is displayed in the instrument cluster and DTC U030000 is logged. |
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| A3921452048671_5 | 2021-12-07. Service bulletin. This bulletin contains instructions for when DTC U030000 appears and “All Wheel Drive Malfunction Message” is displayed in the instrument cluster. |
| A3920262048671_4 | 2020-04-02. Service bulletin. This bulletin contains instructions for when DTC U030000 appears and 'All Wheel Drive Malfunction Message' is displayed in the instrument cluster. |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.