Service bulletins for the 2016 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.
521 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Windshield are shown. Show all
| A6420742020552_9 | 2020-06-04. Service bulletin. VISIBILITY:WINDSHIELD; EQUIPMENT. This bulletin provides instructions on how to clean exterior glass. |
|---|---|
| Fluid Capacity 7 | 2018-02-05. Service bulletin. EQUIPMENT; ENGINE; SERVICE BRAKES; POWER TRAIN; VISIBILITY:WINDSHIELD. This document contains the fluid capacity chart. |
| A641436 2020552- | 2017-12-05. Service bulletin. VISIBILITY:WINDSHIELD. Windshield is streaked, has a snakeskin appearance, or its surface feels rough. Residue from industrial fallout as well as normal road dirt and grime may accumulate on windshield. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.