Home › Service bulletins › SIB 12 05 14

SIB 12 05 14: Engine no-start

Engine no-start on N20 engines (2012–2013); BMW released a software update.

BMW service bulletin · NHTSA ID 10148307 · May 2014 · also written SI B12 05 14, B120514

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.

N20/N26: Engine Fails to Run on Repeated Cold Start. The engine turns over but does not start on a repeat cold-starting attempt.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 12 05 14
Also written: SI B12 05 14, B120514, 12 05 14, SIB-12-05-14, SI B120514
NHTSA ID10148307
Document IDs filed120514
TypeService bulletin
Date
Models320i, 328i, 528i, X1 SAV, Z4
Model years2012–2013
ChassisE84, E89, E92, E93, F10, F30
EnginesN20
Component (NHTSA)Electrical System › Starter Assembly
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.

Related bulletins

  • SIB 12 26 18 Starter cracking Starter cracking on BMW G11/G12/F30/F31 and other models (2015–2017); the fix is replacing the affected part. Service bulletin · Sep 2018
  • SIB 12 13 13 Engine no-start Engine no-start on N20/N52/N54/N55/N57/N62/N63 engines (2010–2013); BMW released a software update. Service bulletin · Jun 2013
  • SIB 61 20 14 Steering no-start Steering no-start on BMW E90/E92/E93/F30 and other models (2012–2015); BMW explains the cause and the approved repair. Service bulletin · Aug 2014
  • SIB 01 02 24 EVAP system warranty extension EVAP system warranty extension on BMW G11/G12/G20/F22 and other models (2016–2024); BMW extended the warranty on this part for eligible cars. Warranty extension · Jun 2026
  • SIB 01 03 24 EVAP system warranty extension EVAP system warranty extension on BMW G01/G02/G05/G06 and other models (2017–2025); BMW extended the warranty on this part for eligible cars. Warranty extension · Jun 2026
  • SIB 01 01 22 Oil consumption class-action settlement Oil consumption class-action settlement on BMW E60/F01/F02/F06 and other models (2009–2019); covers eligible repairs and reimbursement under the court settlement. Service bulletin · Jan 2026

Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.

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.

Want a heads-up when prices or bulletins change for your E84/E89/E92 or other listed model?

About one short email a week, with BMW news. Unsubscribe anytime.