Service bulletins for the 2019 Audi S4
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
836 on file from NHTSA, as of 2026-10-19.
About P2181 on the 2019 Audi S4: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P2181 are shown. Show all
| A1922292058767_8 | 2022-04-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400. |
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| A1921132058767_7 | 2021-04-06. Service bulletin. EQUIPMENT. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400. |
| A0120822058767_6 | 2020-09-03. Service bulletin. ENGINE; EQUIPMENT. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400. |
| A0120652058767_5 | 2020-07-07. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400. |
| A0120632058767_4 | 2020-06-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400. |
| A0120572058767_3 | 2020-05-07. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400. |
| A0120522058767_2 | 2020-04-02. Service bulletin. UNKNOWN OR OTHER. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.