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SIB 54 04 22: Sun/moon roof assembly cracking
Sun/moon roof assembly cracking on BMW G22/G23/G26 models (2021–2022); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 10228432 · Nov 2022 · also written SI B54 04 22, B540422
What it covers
A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.
It is possible that the guide stem (aka rotational axis) on the wind deflector can break upon removal and/or during installation.
Details
| Bulletin number | SIB 54 04 22 Also written: SI B54 04 22, B540422, 54 04 22, SIB-54-04-22, SI B540422 |
|---|---|
| NHTSA ID | 10228432 |
| Document IDs filed | B540422 |
| Type | Service bulletin |
| Date | |
| Models | 430i, M440i |
| Model years | 2021–2022 |
| Chassis | G22, G23, G26 |
| Engines | B46/B48, B58 |
| Component (NHTSA) | Visibility › Sun/Moon Roof Assembly |
Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.
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Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.