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P0300 on the 2021 Audi A6 allroad

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.

Bulletins for this model year that name P0300
A0124482014753_132025-01-07. Service bulletin. This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.
A0124212069038_52024-06-25. Service bulletin. This bulletin provides information when the MIL is illuminated, cylinder misfires; P0300, P0301, P0302, P0303, P0304, P0305, P0306
A0124212069038_52024-06-25. Service bulletin. This bulletin provides information when the MIL is illuminated, cylinder misfires; P0300, P0301, P0302, P0303, P0304, P0305, P0306
A0123042072274_12024-01-04. Service bulletin. This bulletin provides information when the vehicle is running rough at idle; P030000, P030200, P030300, P030400.
A0123912069038_52023-12-06. Service bulletin. This bulletin provides information for when the MIL is illuminated, DTCs P0300, P0301, P0302, P0303, P0304, P0305, P0306.
A0123852058038_52023-11-06. Service bulletin. This bulletin requests that technicians create a Pending Service Solutions record in the Pending Service Solutions Database in instances where there are misfires with DTCs P0300 through P0306.
A0123802069038_42023-11-06. Service bulletin. This bulltin provides information for when the MIL, cylinder misfires, DTCs P0300, P0301, P0302, P0303, P0304, P0305, P0306.
A0123362058038_42023-02-07. Service bulletin. This bulletin requests that technicians open a PSS record when the MIL is illuminated and DTCs P0300 - P0306 may be stored.

8 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.