Service bulletins for the 2019 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.
859 on file from NHTSA, as of 2026-10-19.
About B18BD on the 2019 Audi A4: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: B18BD are shown. Show all
| A9123872062480_3 | 2023-05-05. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. This bulletin advises that DTCs B18BDF0 and B18BEF0 are erroneously stored and should be cleared. |
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| A9122292062480_2 | 2022-10-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin advises that DTCs B18BEF0 and/or B18BDF0 may arise due to a sensitive diagnostic routine; codes can be cleared and no parts require replacement. |
| A9121522054038_3 | 2021-12-07. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for DTCs B18BE13 and B18BD13 with an SOS malfunction message. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.