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SIB 12 26 14: Software reduced power

Software reduced power on BMW E84/E89/F01/F02 and other models (2014); BMW released a software update.

BMW service bulletin · NHTSA ID 10056719 · Sep 2014 · also written SI B12 26 14, B122614

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.

With drivetrain malfunction message displayed and service engine soon, engine CAN go into reduced power mode, due to engine position management (epm) unfavorable parameters in DME software.

NHTSA's summary of this communication (excerpt)

Find it on NHTSA.gov →

Details

Bulletin numberSIB 12 26 14
Also written: SI B12 26 14, B122614, 12 26 14, SIB-12-26-14, SI B122614
NHTSA ID10056719
Document IDs filedSIB-12-26-14
TypeService bulletin
Date
Models228i, 320i, 328d, 328i, 335i, 428i, 435i, 528i, 535i, 640i, 650i, 740i, 740LI, 750i, 750LI, I3, I8, M6, X1 SAV, X3, X5, Z4
Model years2014
ChassisE84, E89, F01, F02, F06, F10, F12, F13, F15, F22, F23, F25, F30, F31, F32, F33, F34, F36, I01, I12, I15
EnginesB38, Electric, N20, N47, N52, N54, N55, N57, N63, S63, W20
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.

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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.