Service bulletins for the 2023 Audi A3
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.
739 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
| A192336202530314 | 2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants. |
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| A9122342065485_2 | 2022-11-04. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when there is an interference described as a whistling noise that changes notably with the engine’s RPM on a Bluetooth phone call. No relevant DTCs stored. |
| A8722302067716_1 | 2022-09-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin advises that techs should document the specific o-ring seal that is replaced if a refrigerant leak is found and caused by the o-ring seal. |
| A3422582067365_1 | 2022-08-03. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This bulletin describes the appropriate repairs in instances where an oil leak is found near the transmission oil cooler. |
| A8722242064077_1 | 2022-05-05. Service bulletin. ENGINE AND ENGINE COOLING. This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only. |
| A1722172060750_3 | 2022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.