An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in...
BMW technical service bulletin B640422 for 2020-2022 BMW X3, 2020-2022 BMW Z4 and 2020-2022 BMW 330I and others.
- Bulletin number
- B640422
- Component
- Visibility: defroster/defogger/HVAC system
- Summary
- An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in the center of the instrument panel.
Owners of these vehicles have filed 17 complaints in the visibility category.
Vehicles covered
- BMW X3 2020-2022 202020212022
- BMW Z4 2020-2022 202020212022
- BMW 330I 2020-2022 202020212022
- BMW M3 2021-2022 20212022
- BMW 430I 2020-2023 2020202120222023
- BMW X4 2020-2022 202020212022
- BMW I4 2022-2023 20222023
- BMW M340I 2020-2023 2020202120222023
- BMW M4 2020-2022 202020212022
- BMW 330E 2020-2023 2020202120222023
- BMW M440I 2021-2023 202120222023
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