Service bulletin B121814
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10147666 |
| Published by NHTSA | 2018-11-13 |
| Manufacturer's number | B121814 |
| Manufacturer's date | 2015-03-01 |
| NHTSA component | ELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE; ELECTRICAL SYSTEM |
NHTSA's summary
Engine Misfire Due to Failed Ignition Coil. ? The Check Engine or Service Engine Soon (MIL) lamp is on with misfire fault(s) stored in the DME. ? Intermittent performance or rough running without a relevant DME fault stored The most likely cause is that an ignition coil has failed, which can be confirmed in many cases with basic diagnosis. During operation with high temperature fluctuations, the different materials used in the Bosch ignition coil construction can deteriorate over time, leading to a failure.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Ignition
| BMW BMW |
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Listing a model year does not mean every vehicle of it is concerned: the document says which.