2021-2022 BMW 430i/M440i Wind Deflector Guide Stem Breakage
BMW has identified an issue where the wind deflector guide stem in 2021-2022 430i and M440i models can break during removal or installation. This manufacturer communication (NHTSA ID 10228432) advises technicians on this potential problem to prevent damage during service.
Also applies to
- BMW 430i
- 2022
- BMW M440i
- 2021–2022
What's the Issue?
BMW has released a manufacturer communication, identified by NHTSA ID 10228432, addressing a potential problem with the wind deflector assembly. Specifically, it highlights that "the guide stem (aka rotational axis) on the wind deflector can break upon removal and/or during installation." This issue primarily concerns service procedures rather than normal operation.
This advisory serves as a warning to technicians to exercise caution when working on the wind deflector to prevent damage to this component. The guide stem is a critical part of the wind deflector's mechanism, and its breakage would necessitate replacement. This information is crucial for understanding the nature of the "2021 BMW 430i manufacturer_communication".
Important Note for Technicians
The primary purpose of this communication is to inform service personnel about the fragility of the wind deflector's guide stem. Technicians performing work on the sun/moon roof assembly, particularly those involving the wind deflector, should be aware that the "guide stem (aka rotational axis) on the wind deflector can break upon removal and/or during installation." This knowledge helps prevent accidental damage and ensures proper handling during maintenance or repair.
Owner Action
As this issue pertains to potential damage during service, there is no immediate action required for owners unless they are experiencing a problem with their wind deflector. If you own a 2021 BMW 430i or other affected model and plan to have service performed on your sun/moon roof assembly, it is advisable to ensure your service center is aware of this manufacturer communication (NHTSA ID 10228432). This specific "2021 BMW 430i manufacturer_communication" helps prevent unnecessary damage or additional costs during maintenance.
Source: NHTSA ID 10228432.
Frequently Asked Questions
- What is the problem with the BMW wind deflector?
- BMW has issued a manufacturer communication (NHTSA ID 10228432) stating that the "guide stem (aka rotational axis) on the wind deflector can break upon removal and/or during installation" on certain models.
- Which BMW models are affected by this wind deflector issue?
- This issue affects 2021-2022 BMW 430i and M440i models.
- What should I do if my BMW's wind deflector breaks?
- If your wind deflector breaks, especially during service, it will likely require replacement. You should contact a BMW service center for diagnosis and repair.
- Is this a recall?
- No, this is a manufacturer communication (TSB) for technicians, not a safety recall. It informs service centers about a potential issue during repair procedures.
What BMW 430i owners report
Counted from the records in our database across 10 model years.
- 127
- Owner complaints
- 17
- Recalls
- 509
- Service bulletins
- 11
- Crashes reported
- 2
- Fires reported
- 11
- Injuries reported
The 2021 model year
15 complaints, the 4th most of 10 model years on file. Owners reported 0 crashes, 0 fires and 0 injuries for this year, which also has 6 recalls on file.
Visibility, the system this article covers, accounts for 2 of 127 complaints (2%).
Complaints by model year
| 2017 | 25 | |
|---|---|---|
| 2018 | 36 | |
| 2019 | 24 | |
| 2020 | 5 | |
| 2021 | 15 | |
| 2022 | 8 | |
| 2023 | 3 | |
| 2024 | 2 | |
| 2025 | 7 | |
| 2026 | 2 |
Most-reported systems
- Engine — 38
- Electrical System — 27
- Engine And Engine Cooling — 17
- Air Bags — 14
- Power Train — 13
Latest recalls for the 2021 model year
- 26V056000 — Electrical System (Jan 2026)
- 25V636000 — Electrical System (Sep 2025) — Park outside
- 23V584000 — Electrical System (Aug 2023)
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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