Service bulletins for the 2021 Audi A4 allroad
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.
785 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Body and frame are shown. Show all
| A5123262068999_1 | 2023-02-07. Service bulletin. STRUCTURE. This bulletin provides instruction for when a customer advises that a visible line of corrosion is forming in the roof. |
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| A6622862046229_3 | 2022-05-05. Service bulletin. STRUCTURE. This informational bulletin outlines proper warranty procedure for optical defects. |
| A5522672066057_1 | 2022-03-04. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:HATCHBACK/LIFTGATE. This bulletin advises that there is an SVM update for complaints that the power tailgate does not open or close electronically. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.