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SIB 12 04 12: Fault codes
Fault codes on N55 engines (2010–2014); BMW released a software update.
BMW service bulletin · NHTSA ID 10150032 · Jul 2013 · also written SI B12 04 12, B120412
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.
N55: Idle Fluctuates Briefly After a Cold Engine Start. Under certain engine cold starts, the engine idle may fluctuate during the first 10-20 seconds of operation before becoming stable.
Details
| Bulletin number | SIB 12 04 12 Also written: SI B12 04 12, B120412, 12 04 12, SIB-12-04-12, SI B120412 |
|---|---|
| NHTSA ID | 10150032 |
| Document IDs filed | 120412 |
| Type | Service bulletin |
| Date | |
| Models | 535i, 535I Gran Turismo, 640i, ActiveHybrid 5, X3, X5, X6 |
| Model years | 2010–2014 |
| Chassis | E70, E71, F06, F07, F10, F12, F13, F25 |
| Engines | N55 |
| Component (NHTSA) | Engine |
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.
More for these cars
E70 repair costs F10 repair costs F25 repair costs All N55 bulletins
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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.