U1013 on the 2018 Audi S8
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.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| A3920382060169_2 | 2021-01-08. Service bulletin. This bulletin contains instructions for when DTC U101300 is logged with sports differential warning lamps or messages. |
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| A3920342060169_1 | 2020-08-06. Service bulletin. This bulletin contains instructions for when DTC U101300 is logged with sports differential warning lamps or messages. |
2 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.