Service bulletins for the 2026 BMW 430i
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.
9 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Brakes are shown. Show all
| B340226 | 2026-08-27. Service campaign. SERVICE BRAKES. The protective film which covers the 6 threaded connection holes on the DSC hydro unit may not have been completely removed before the brake line was fastened. This can lead to a gradual loss of brake fluid at the threaded connection. As a result, the driver is alerted at an early stage by a red Check Control Message stating “Brake system defective. Stop carefully. Do not continue driving. Call BMW Roadside Assistance”. However, there is no functional limitation of the brake. |
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| B340925 | 2026-01-05. Service bulletin. SERVICE BRAKES. There may be an internal leakage in the brake fluid expansion tank (aka brake fluid reservoir). In the rarecase of a leak, the filling level sensor might malfunction over a relatively long period of time. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.