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SIB 64 06 21: Hard parts internal/mechanical service information
Hard parts internal/mechanical service information on B46/B48 engines (2016–2021); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 10204657 · Sep 2021 · also written SI B64 06 21, B640621
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.
Details
| Bulletin number | SIB 64 06 21 Also written: SI B64 06 21, B640621, 64 06 21, SIB-64-06-21, SI B640621 |
|---|---|
| NHTSA ID | 10201145, 10204657 (revisions) |
| Document IDs filed | B640621 |
| Type | Service bulletin |
| Date | (first filed Jul 2021) |
| Models | 228i, M235i, X1, X1 SAV, X2 |
| Model years | 2016–2021 |
| Chassis | F39, F44, F48 |
| Engines | B46/B48 |
| Component (NHTSA) | Engine And Engine Cooling › Engine › Hard Parts Internal/Mechanical Equipment › Appliance › Air Conditioner |
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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- SIB 64 13 18 Blower motor service information Blower motor service information on BMW F39/F48 models (2016–2018); BMW explains the cause and the approved repair. Service bulletin · Jan 2019
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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.