WenmarOpen by Wenmar Pro

C110D on the 2021 Audi S5

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.

Bulletins for this model year that name C110D
A4823492061904_52023-07-10. Service bulletin. This bulletin provides information for when the yellow steering malfunction light is on in the cluster and DTC C110DF0 is stored in the active steering module.
A4822302061904_42022-05-05. Service bulletin. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
A4821022061904_32021-07-02. Service bulletin. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
A4821002061904_22021-06-03. Service bulletin. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
A4821922061904_12021-02-04. Service bulletin. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.

5 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.