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Service bulletin B-121814

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10058489
Published by NHTSA2015-09-28
Manufacturer's numberB-121814
Manufacturer's date2015-03-01
NHTSA componentENGINE

NHTSA's summary

FAILED IGNITION COIL CAUSES MISFIRE DUE TO HIGH TEMPERATURE FLUCTUATIONS DURING OPERATIONS *CN

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
BMW 320I2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20244682024-08-13. Engine
20217112021-11-19. Engine
20185872018-10-26. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
B0109192023-12-06. Service bulletin. DIESEL FUEL INJECTORS: LTD WTY EXTENSION TO 10 YEARS/120,000 MILES
SIB0119182022-07-18. Service bulletin. Component specific limited warranty extension. For the eligible vehicles, BMW of North America, LLC (BMW NA) is extending the limited warranty for the vehicle Nitrogen Oxide (NOx) Sensor(s) to: 10 years/120,000 miles as determined by the vehicle original in-service date.
B1701212022-06-21. Service bulletin. The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
B1701212022-05-31. Service bulletin. The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
SIB1103172021-12-13. Service bulletin. BMW of North America, LLC BMW NA is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date
B1103172021-12-13. Service bulletin. For the above-referenced vehicles, BMW of North America, LLC (BMW NA) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date.
B1103172021-11-08. Service bulletin. BMW of North America, LLC (BMW NA) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date
B1101202021-08-09. Service bulletin. On rare occasions during an engine oil service, the BMW Original (Genuine) engine oil filter insert is either difficult to remove or breaks apart in the oil filter housing.
B1103212021-07-19. Service bulletin. B58 ENGINE: ENGINE OIL FILTER REMOVAL PROCEDURE AND TOOLS . A. For the B58 engines, a BMW Oil Catch special tool for use in conjunction with removing the engine oilfilter insert is now available.
B1213182021-03-15. Service bulletin. COMBUSTION CONTROL VALVE LIFT AT IDLE: The vehicle will run rough or hesitate when accelerating from a stationary position.