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.
By type
By component
By trouble code
Only bulletins with component: Seats are shown. Show all
| TSB_2071893_2 | 2025-05-03. Service bulletin. SEATS. This TSB provides damage assessment guidelines for textile seat covers. |
|---|---|
| A7223462069350_1 | 2023-06-06. Service bulletin. ELECTRICAL SYSTEM; SEATS. This bulletin provides information for when the starter battery is discharged, and the vehicle cannot be started due to the front adjustment seat switch becoming jammed. |
| A7221372064695_1 | 2021-11-05. Service bulletin. STRUCTURE; SEATS. The informational bulletin explains the technical aspect of enter/exit assistance. |
| 19A4S4ALRDTECREP | 2019-05-06. Service bulletin. VISIBILITY:WINDSHIELD; SEATS; EQUIPMENT. Vehicle Preparation Section: ADDED: "Verify Audi Phone Box Customer Registration form is present in car and fill out 'Serial Number'field. Check Elsa 'Vehicle Information' Section or location sticker on car. See TSB 2051720 Lighting and Windshield Section: REMOVED: "(and headlight washers if equipped)" from "Test Front Windsheld Washers" Interior Section: REMOVED: "(if applicable)" from Verify SOS button ADDED: "Verify operation of heated rear seats (if equipped)" CHANGED: Made ventilated seats its own checklist item |
| A91164120436602 | 2017-03-07. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; SEATS:MID/REAR ASSEMBLY. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE ISSUES WITH THE REAR SEAT ENTERTAINMENT TABLETS AND HOW TO UPDATE THE SOFTWARE OF THE TABLETS. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.