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SIB 17 01 26: Vent line leak
Vent line leak on B58/N74 engines (2022–2025); BMW gives an inspection and repair procedure.
BMW service campaign · NHTSA ID 11035398 · Jul 2026 · also written SI B17 01 26, B170126
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.
Internal quality inspections have revealed that leaks may occur due tolocalized material aging on the vent lines. These leaks occur because the material originally used is notsufficiently resistant to the continuously high temperatures.
Details
| Bulletin number | SIB 17 01 26 Also written: SI B17 01 26, B170126, 17 01 26, SIB-17-01-26, SI B170126 |
|---|---|
| NHTSA ID | 11033034, 11035398 (revisions) |
| Document IDs filed | B170126 |
| Type | Service campaign |
| Date | (first filed May 2026) |
| Models | 740i, M760i |
| Model years | 2022–2025 |
| Chassis | G70, G11, G12 |
| Engines | B58, N74 |
| Component (NHTSA) | Engine |
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
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- SIB 01 13 25 EVAP system warranty extension EVAP system warranty extension on BMW G12/F30/I12/I15 models (2016–2022); BMW extended the warranty on this part for eligible cars. Warranty extension · May 2026
- SIB 11 10 24 Oil pump bolt torque check Oil pump bolt torque check on B58/N63 engines (2023–2024); BMW repairs affected cars free under a service campaign. Service campaign · Jan 2025
- SIB 11 06 25 Oil pump bolt torque check Oil pump bolt torque check on B58/N63 engines (2024); BMW repairs affected cars free under a service campaign. Service campaign · Aug 2025
- SIB 01 01 21 Thermostat warranty extension Thermostat warranty extension on BMW G05/G06/G07/G11 and other models (2016–2022); BMW extended the warranty on this part for eligible cars. Warranty extension · Nov 2024
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.