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SIB 12 15 14: Transmission service information
Transmission service information on N52/N54/N55 engines (2010–2013); BMW released a software update.
BMW service bulletin · NHTSA ID 10147236 · Sep 2015 · also written SI B12 15 14, B121514
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.
This Service Information bulletin supersedes SI B12 15 14 dated August 2014. designates changes to this revision SUBJECT N55 with Double-Clutch Transmission: Idle Fluctuates when Stopped.
Details
| Bulletin number | SIB 12 15 14 Also written: SI B12 15 14, B121514, 12 15 14, SIB-12-15-14, SI B121514 |
|---|---|
| NHTSA ID | 10056707, 10148217, 10147236 (revisions) |
| Document IDs filed | 121514, B121514, SIB-12-15-14 |
| Type | Service bulletin |
| Date | (first filed Aug 2014) |
| Models | 1 Series, 135i |
| Model years | 2010–2013 |
| Chassis | E82, E88 |
| Engines | N52, N54, N55 |
| Component (NHTSA) | Electrical System › Software Engine Power Train Power Train › Automatic Transmission |
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.