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SIB 61 15 21: Battery service information
Battery service information on BMW G82/G83 models (2021); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 10205094 · Nov 2021 · also written SI B61 15 21, B611521
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 EPP (expanded polypropylene) insert for the lithium-ion battery was not installed in approx. 0.3% of the G82 and G83 vehicles.
Details
| Bulletin number | SIB 61 15 21 Also written: SI B61 15 21, B611521, 61 15 21, SIB-61-15-21, SI B611521 |
|---|---|
| NHTSA ID | 10205094 |
| Document IDs filed | B611521 |
| Type | Service bulletin |
| Date | |
| Models | M4 |
| Model years | 2021 |
| Chassis | G82, G83 |
| Engines | S58 |
| Component (NHTSA) | Electrical System › 12v/24v/48v Battery Equipment Equipment Adaptive/Mobility |
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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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.