Service bulletins for the 2013 Audi A4
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.
662 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Fuel injection are shown. Show all
| 01137420332112 | 2022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Under extreme driving conditions (e.g. long idle periods or extended stop and go traffic), high temperatures build up in the rail system and can lead to steam bubbles in the fuel. |
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| A012046201475310 | 2020-04-02. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This bulletin contains instructions for when to add gasoline additives for cleaning the injectors. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.