Service bulletins for the 2018 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.
567 on file from NHTSA, as of 2026-10-19.
About U0300 on the 2018 Audi A4 allroad: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: U0300 are shown. Show all
| A341838 2048671- | 2019-02-19. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains instructions for when DTC U030000 appears and ?All Wheel Drive Malfunction Message? is displayed in the instrument cluster. |
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| A341830 2048671_ | 2018-04-16. Service bulletin. WHEELS. This bulletin contains instructions for when DTC U030000 appears and ?All Wheel Drive Malfunction Message? is displayed in the instrument cluster. |
| A341723 2048671- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This bulletin contains instructions for when DTC U030000 appears and ?All Wheel Drive Malfunction Message? is displayed in the instrument cluster. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.