Home › Service bulletins › SIB 12 11 26
SIB 12 11 26: Engine rough running
Engine rough running on BMW G01/G05/G06/G07 and other models (2024); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 11037505 · Sep 2026 · also written SI B12 11 26, B121126
What it covers
A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.
Potential customer complaints with no fault codes stored / No MIL displayed. 1. “Rough idle after idling for a longer period of time” 2. “Vehicle feels like it is misfiring at idle” The automatic Start/Stop function is deactivated. The vehicle is stopped and the engine runs at idle speed.
Details
| Bulletin number | SIB 12 11 26 Also written: SI B12 11 26, B121126, 12 11 26, SIB-12-11-26, SI B121126 |
|---|---|
| NHTSA ID | 11037505 |
| Document IDs filed | B121126 |
| Type | Service bulletin |
| Date | |
| Models | 230i, 330i, 430i, 530i, 740i, X3, X5, X6, X7 |
| Model years | 2024 |
| Chassis | G01, G05, G06, G07, G20, G22, G23, G26, G42, G60, G70, F97 |
| Engines | B46/B48, B47, B58, N63, S58 |
| 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
G01 repair costs G05 repair costs G20 repair costs All B46/B48 bulletins All B58 bulletins All N63 bulletins All S58 bulletins
Related bulletins
- SIB 01 02 24 EVAP system warranty extension EVAP system warranty extension on BMW G11/G12/G20/F22 and other models (2016–2024); BMW extended the warranty on this part for eligible cars. Warranty extension · Jun 2026
- SIB 01 03 24 EVAP system warranty extension EVAP system warranty extension on BMW G01/G02/G05/G06 and other models (2017–2025); BMW extended the warranty on this part for eligible cars. Warranty extension · Jun 2026
- SIB 01 14 25 EVAP system warranty extension EVAP system warranty extension on BMW G01/G05/F97/G30 models (2018–2022); BMW extended the warranty on this part for eligible cars. Warranty extension · May 2026
- SIB 01 01 26 EVAP system warranty extension EVAP system warranty extension on B46/B48/B58 engines (2020–2025); 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
Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.
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.