Technical Service Bulletin B340925 — 2024 BMW M4
SERVICE BRAKES
Bulletin Details
| TSB ID | B340925 |
| Manufacturer | |
| Vehicle | 2024 BMW M4 |
| Component | SERVICE BRAKES |
| Communication Date |
Bulletin Summary
There may be an internal leakage in the brake fluid expansion tank (aka brake fluid reservoir). In the rare case of a leak, the filling level sensor might malfunction over a relatively long period of time.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.