# Service bulletin B511522

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: 10227549
- Published by NHTSA: 2022\-12\-12
- Manufacturer's number: B511522
- Manufacturer's date: 2022\-10\-01
- NHTSA component: POWER TRAIN

## NHTSA's summary

While driving on a rough road, a groaning sound is heard coming from the D\-pillar trim panel and the headliner. The sound can occur on either the left or right\-side D\-pillar trim panels.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227549-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227549-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2022 BMW I4

## Other bulletins for the same vehicles and component

- [B120523](/bulletins/11030059.md), 2026-03-13, Service bulletin: POWER TRAIN. 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.
- [B121425](/bulletins/11025669.md), 2025-11-25, Service campaign: ELECTRICAL SYSTEM; POWER TRAIN. 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.
- [B120523](/bulletins/10250361.md), 2024-03-02, Service bulletin: POWER TRAIN. 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.
- [B120523](/bulletins/10242885.md), 2023-10-01, Service bulletin: POWER TRAIN. 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 the ISTA test procedure lists the possible cause of fault as “a metal chip is found behind the brush module” \(between the brush module and the end shield of the electrical machine\), then a repair is required. Refer to service solution no. 20000794435083 in Aftersales Information Research \(AIR\). Follow information in the Procedure section below
- [B612023](/bulletins/10242700.md), 2023-09-25, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. ?The customer states there is a Drivetrain Malfunction message displayed in the instrument cluster, and in some cases the vehicle will not go into drive readiness.
- [SIB120522](/bulletins/10236220.md), 2023-05-15, Service bulletin: POWER TRAIN. BMW AG has issued a Delivery Stop \(effective December 1, 2022\) on certain Model Year 2023 BMW i4 and i7 vehicles that were produced between October 5, 2022 and November 10, 2022. A bearing in the front electric drive unit could fail due to a manufacturing defect, resulting in a noise while driving.
- [B120522](/bulletins/10233155.md), 2023-03-20, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. A bearing in the front electric drive unit could fail due to a manufacturing defect, resulting in a noise while driving.

JSON: [/v1/bulletins/10227549](/v1/bulletins/10227549)

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