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Service campaign eB340225

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11016435
Published by NHTSA2025-04-03
Manufacturer's numbereB340225
Manufacturer's date2025-03-06
NHTSA componentSERVICE BRAKES

NHTSA's summary

Delivery Stop - Brake Fluid Expansion Tank

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

Vehicles listed
BMW 230I2025
BMW 330I2025
BMW 430I2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B0628262026-05-01. Other. Brake Hose Return
B3409252026-01-05. 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.
B3410252025-07-28. Service bulletin. After programming from the I-Levels between …24-03-505 and lower than …24-03-540 to I-Level …24-11-530 or higher, the following CCM may be displayed: “CCM-2525: Brake system. Drive at moderate speed”
B3402252025-04-17. Service campaign. Due to a manufacturing defect, there might be an internal leakage of the brake fluid expansion tank. In therare case that there is a leakage, the filling level sensor might malfunction over a relatively long period oftime .