Service bulletins for the 2018 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.
796 on file from NHTSA, as of 2026-10-19.
About B2000 on the 2018 Audi S4: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: B2000 are shown. Show all
| TSB_2082977_1 | 2026-09-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton when the airbag warning lamp is active, event memory "B200000 - Faulty control module, symptom 305". |
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| A4821972063041_1 | 2021-05-06. Service bulletin. STEERING. This buletin contains a software update when there is a red steering warning lamp and DTC B200000 is stored. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.