# Service bulletin B330126

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: 11028922
- Published by NHTSA: 2026\-02\-23
- Manufacturer's number: B330126
- Manufacturer's date: 2026\-02\-18
- NHTSA component: SUSPENSION

## NHTSA's summary

1. Noise complaint: Humming or clicking type noise in the speed range of 15 – 65 mph can be heard from the rear axle. Seeattached video “V33 01 26 Humming” and “V33 02 26 Clicking” The noise may be amplified depending on road speed. Or 2. Fault memory entry: Customer has Dynamic Stability Control malfunction indicator lamp and/or related Check Control Message. The following fault codes are found in the Integrated Brake module fault memory: 4809B7: Wheel speed sensor \- rear left \- tooth missing 4809C2: Wheel speed sensor \- rear right \- tooth missing 480AB4: Wheel speed sensor \- rear right – noise monitoring 480AAD: Wheel speed sensor \- rear left – noise monitoring

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028922-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028922-9999.pdf)

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

## Components

Suspension

## Vehicles listed

- 2023 to 2024 BMW X1
- 2023 to 2024 BMW X2

## Other bulletins for the same vehicles and component

- [B310126](/bulletins/11028921.md), 2026-02-23, Service bulletin: SUSPENSION. When driving over an uneven road surface, a “thumping” noise can be heard from the front axle. Seeattached video V 31 01 26. Under certain weather conditions, a “groaning” noise may be heard during steering movements
- [B310122](/bulletins/11008106.md), 2024-09-29, Service bulletin: SUSPENSION. During inspection and/or diagnosis there is noticeable dirt/grease buildup on the axles near the inner and/or outer CV boots.
- [B310122](/bulletins/10252033.md), 2024-04-01, Service bulletin: SUSPENSION. During inspection and/or diagnosis there is noticeable dirt/grease buildup on the axles near the inner and/o router CV boots.

JSON: [/v1/bulletins/11028922](/v1/bulletins/11028922)

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