Service bulletins for the 2025 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.
539 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| A0124302074640_1 | 2024-08-06. Service bulletin. ENGINE. This bulletin provides information when the defrost function deactivates after 5-10 seconds and/or MMI settings are lost. |
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| A0023712070568_1 | 2023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on professional noise analysis with the VAS 611 015 PICO NVH Tool. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.