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SIB 12 11 18: Engine no-start

Engine no-start on B57 engines (2018); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10138378 · Apr 2018 · also written SI B12 11 18, B121118

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.

B57O - ROUGH RUNNING WITH CRANKSHAFT AND ZERO-QUANTITY ADAPTATION FAULTS: The Malfunction Indicator Lamp (MIL) is illuminated and the engine may run roughly while idling and accelerating.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 12 11 18
Also written: SI B12 11 18, B121118, 12 11 18, SIB-12-11-18, SI B121118
NHTSA ID10138378
Document IDs filedB121118
TypeService bulletin
Date
Models540d
Model years2018
ChassisG30
EnginesB57
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.