Service campaign B340226
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.
| Type | Service campaign |
|---|---|
| NHTSA id | 11036389 |
| Published by NHTSA | 2026-08-27 |
| Manufacturer's number | B340226 |
| Manufacturer's date | 2026-08-27 |
| Campaign id or software version | 0034410300 |
| NHTSA component | SERVICE BRAKES |
NHTSA's summary
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.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Brakes
| BMW 430I | 2026 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| B340925 | 2026-01-05. Service bulletin. 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. |
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