Service bulletin B120523
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11012080 |
| Published by NHTSA | 2024-12-31 |
| Manufacturer's number | B120523 |
| Manufacturer's date | 2024-12-10 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
The customer states there is a Drivetrain Malfunction message displayed in the instrument cluster. In addition, the following fault memory entries are saved in the CCU (Combined Charging Unit) 0317F2 - High-voltage system, insulation fault detected: when switch contactors are closed. 0317F1 - High-voltage system, insulation resistance below warning threshold: when switch contactors are closed. The fault memory entries (isolation faults) can occur both individually and in combination and must be traced back to the eDrive motor based on the ISTA test procedure. If ISTA test procedure lists possible cause of fault as; A metal chip is found behind the brush module (between the brush module and the end shield of the electrical machine). Repair required. Refer to service solution no. 20000794435083 in Aftersales Information Research (AIR). Follow information in the Procedure section below.
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
Electrical system
| BMW I4 | 2022, 2023 |
|---|---|
| BMW I5 | 2024 |
| BMW I7 | 2023, 2024 |
| BMW IX | 2021 |
| BMW IX | 2022, 2023, 2024 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 25V395000 | 2025-07-23. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION MOTOR:CONTROLLER:SOFTWARE |
|---|---|
| 25V470000 | 2025-07-16. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY |
| 24V135000 | 2024-02-23. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY |
| 2023561 | 2023-10-18. Electrical |
| 23V700000 | 2023-10-18. ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR |
| 23V479000 | 2023-07-12. ELECTRICAL SYSTEM |
| 23V449000 | 2023-06-28. ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT |
| 23V295000 | 2023-04-26. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY |
| 2023093 | 2023-02-24. Electrical |
| 23V118000 | 2023-02-23. ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| B630526 | 2026-09-28. Service bulletin. After programming the vehicle via ISTA/RSUto I-level …26-03-5xx, customer may reportsome of the interior ambient lighting strips(arrows) may begin to fail sporadically after adeep sleep cycle. This concern is temporary and the interiorambient lighting will be restored on its ownafter the vehicle is locked/unlocked or colorselection setting is changed. |
|---|---|
| B611626 | 2026-08-28. Service campaign. In vehicles equipped with the Roof Function Center “FZD‑21” variant, a quiescent‑current violation mayoccur if the system fails to enter sleep mode. When this sleep error is present, a remote software upgrade(RSU) may be aborted and the FZD can become degraded. The following Check Control Messages (CCMs) may be displayed: “Energy Management — Increased Energy Consumption While Parked.” “Software Upgrade Failed — Workshop Visit Required.” |
| B640925 | 2026-08-27. Service campaign. A faulty electric auxiliary heater may have been installed in the certain vehicles. This could result in thefailure of the electric auxiliary heater, utilized for the vehicle interior. |
| B640825 | 2026-08-27. Service campaign. A faulty electric auxiliary heater may have been installed in the certain vehicles. This could result in thefailure of the electric auxiliary heater, utlized for the vehicle interior. |
| B340124 | 2026-08-27. Service campaign. After replacement of the Integrated Braking system (IB)/Power Brake the total distance covered might belower than when handed over to the workshop for the repair. |
| B652026 | 2026-07-31. Service bulletin. The Central Information Display (CID) side of the Multifunction Display (MFD) may flicker intermittently. Theflickering manifests itself in three phases: The image is distorted The central information display turns black (black screen) The image is OK again The complete flickering episode with all the above-mentioned three phases only lasts about half a second intotal each time. |
| B610626 | 2026-04-27. Service bulletin. Charging sessions cannot be started or they are interrupted while using a Level 2 AC high-power charging station, or with a Level 3 DC charging station. Charging may start normally but can interrupt after some time. Level 2 (240 V) Flex Charger and Wall box may also be affected. The red or white LED is displayed on the high-voltage charging socket; however, no associated fault codes are stored. |
| B061526 | 2026-02-25. Other. High Voltage Connection Return |
| B640925 | 2026-01-05. Service campaign. A faulty electric auxiliary heater may have been installed in the certain vehicles. This could result in thefailure of the electric auxiliary heater, utilized for the vehicle interior. |
| B121425 | 2025-11-25. Service campaign. RSU availability. BMW AG is conducting a Service Action on certain Model Year 2025 - 2026 BMW vehicles that were produced between March 17, 2021 – November 6, 2025. In certain driving situations there can be a loss of traction or wheel slip followed by a throttle or torque requirement that can potentially damage the axle shafts. Damage of the drive shaft can cause it to break. |