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SIB 65 16 21: Convertible top service information
Convertible top service information on BMW G29 models (2019–2021); BMW gives an adjustment procedure.
BMW service bulletin · NHTSA ID 10201147 · Jul 2021 · also written SI B65 16 21, B651621
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.
Navigation announcement is very loud when the convertible top is open and can not be adjusted to a lower volume.
Details
| Bulletin number | SIB 65 16 21 Also written: SI B65 16 21, B651621, 65 16 21, SIB-65-16-21, SI B651621 |
|---|---|
| NHTSA ID | 10201147 |
| Document IDs filed | B651621 |
| Type | Service bulletin |
| Date | |
| Models | Z4 |
| Model years | 2019–2021 |
| Chassis | G29 |
| Engines | B46/B48, B58 |
| Component (NHTSA) | Equipment › Electrical |
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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Before you pay: check your VIN for recalls
Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.
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.