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SIB 12 13 15: Check engine light

Check engine light on S55 engines (2015–2016); BMW gives diagnosis and repair guidance.

BMW service bulletin · NHTSA ID 10147072 · Feb 2015 · also written SI B12 13 15, B121315

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.

SUBJECT Service Engine Soon Light (MIL) ""On"" with Lean Mixture Faults Stored.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 12 13 15
Also written: SI B12 13 15, B121315, 12 13 15, SIB-12-13-15, SI B121315
NHTSA ID10147072
Document IDs filed121315
TypeService bulletin
Date
ModelsM3, M4
Model years2015–2016
ChassisF80, F82, F83
EnginesS55
Component (NHTSA)Electrical System
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

All S55 bulletins

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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.