It is possible that the guide stem (aka rotational axis) on the wind deflector can break upon removal...
BMW technical service bulletin B540422 for 2021-2022 BMW 430I and 2021-2022 BMW M440I.
- Bulletin number
- B540422
- Component
- Visibility: sun/moon roof assembly
- Summary
- It is possible that the guide stem (aka rotational axis) on the wind deflector can break upon removal and/or during installation.
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