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SIB 12 19 15: Battery cracking
Battery cracking on N55 engines (2012–2015); the fix is replacing the affected part.
BMW service bulletin · NHTSA ID 10147709 · Jun 2015 · also written SI B12 19 15, B121915
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.
Service Action: Replace EME B+ Cable. The Electric Machine Electronics (EME) has a connection for the B+ cable which leads to the 12V battery. This B+ cable transfers energy from the DC/DC converter to the 12V network. This cable may corrode over time and, in extreme cases, could break.
Details
| Bulletin number | SIB 12 19 15 Also written: SI B12 19 15, B121915, 12 19 15, SIB-12-19-15, SI B121915 |
|---|---|
| NHTSA ID | 10147709 |
| Document IDs filed | B121915 |
| Type | Service bulletin |
| Date | |
| Models | ActiveHybrid 3, ActiveHybrid 5, ActiveHybrid 7 |
| Model years | 2012–2015 |
| Chassis | F01, F02, F10, F30 |
| Engines | N55 |
| Component (NHTSA) | Engine Equipment |
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.