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SIB 34 02 26: Brakes warning message
Brakes warning message on BMW G22/G23/G26 models (2026); BMW gives an inspection and repair procedure.
BMW service campaign · NHTSA ID 11036389 · Aug 2026 · also written SI B34 02 26, B340226
What it covers
A service campaign is a fix BMW performs free on affected cars. Ask a BMW center whether it is open on your VIN.
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.
Details
| Bulletin number | SIB 34 02 26 Also written: SI B34 02 26, B340226, 34 02 26, SIB-34-02-26, SI B340226 |
|---|---|
| NHTSA ID | 11036389 |
| Document IDs filed | B340226 |
| Type | Service campaign |
| Date | |
| Models | 430i |
| Model years | 2026 |
| Chassis | G22, G23, G26 |
| Engines | B46/B48 |
| Component (NHTSA) | Service Brakes |
Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.
More for these cars
Related bulletins
- SIB 32 04 26 Hydro Unit DSC Hydro Unit DSC on BMW G22/G23/G26 models (2027); BMW repairs affected cars free under a service campaign. Service campaign · Jul 2026
- NHTSA 11016435 Coolant expansion tank new-car delivery hold Coolant expansion tank new-car delivery hold on BMW G20/G22/G23/G26 and other models (2025); unsold cars were held for inspection and repair before delivery. Service campaign · Mar 2025
- SIB 34 02 25 Coolant expansion tank leak Coolant expansion tank leak on BMW G20/G22/G23/G26 and other models (2025); BMW repairs affected cars free under a service campaign. Service campaign · Apr 2025
- SIB 34 10 20 Brakes ticking noise Brakes ticking noise on B46/B48/B58 engines (2019–2021); BMW explains the cause and the approved repair. Service bulletin · Oct 2020
- SIB 06 28 26 Brake Hose Return Brake Hose Return on BMW G20/G22/G23/G26 models (2025); BMW explains the cause and the approved repair. Other communication · Apr 2026
- SIB 34 09 25 Coolant expansion tank leak Coolant expansion tank leak on BMW G20/G22/G23/G26 and other models (2024–2026); BMW explains the cause and the approved repair. Service bulletin · Dec 2025
Before you pay: check your VIN for recalls
Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.
Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.