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Service bulletin 121712

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 id10148256
Published by NHTSA2018-11-13
Manufacturer's number121712
Manufacturer's date2014-04-01
NHTSA componentENGINE; POWER TRAIN

NHTSA's summary

N52T / N55 with 8HP45: Delay in Engine Response. A customer may complain of a delay in engine response after decelerating at low road speeds and then reaccelerating. This can occur when the transmission remains in a high gear due to a delay in the transmission downshifting. This situation can be more noticeable while driving on roads with slight turns or with an increasing gradient. Unfavorable EGS and DME software

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

Engine, Transmission and driveline

Vehicles listed
BMW 528I2011
BMW 535I2011, 2012, 2013, 2014, 2015
BMW 535I GRAN TURISMO2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
BMW 535I US2011 (the catalog's model; the bulletin names a series or trim of it)
BMW 550I2013, 2014, 2015
BMW 550I GRAN TURISMO2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
BMW ACTIVE HYBRID 52012, 2013
BMW X32011, 2012
BMW X52007, 2008, 2009, 2010, 2011, 2012, 2013
BMW X5 M2010 to 2012
BMW X62008, 2009, 2010, 2011, 2012, 2013, 2014
BMW X6 M2010 to 2012

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

Recalls for the same vehicles and component
20235682023-10-20. Engine
23V7070002023-10-20. ENGINE AND ENGINE COOLING:ENGINE
20220952022-03-02. Engine
18V3360002018-05-23. ENGINE AND ENGINE COOLING:ENGINE
18V2480002018-04-18. ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
17V6830002017-10-30. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
20174702017-09-28. Engine
20171132017-03-03. Powertrain
17V1380002017-03-02. POWER TRAIN:DRIVELINE:DRIVESHAFT
17V0670002017-02-02. POWER TRAIN:DRIVELINE:CONSTANT VELOCITY JOINT

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
B0101222026-02-02. Service bulletin. N63TU1 CLASS ACTION SETTLEMENT SVC CAMPAIGN: OIL CONSUMPTION DIAGNOSIS/REPAIR
B0664252026-01-06. Other. Gasket Return
B1106142025-04-03. Service campaign. This bulletin outlines the Customer Care Package program that has been designed exclusively for BMWvehicles with the N63 engine. Vehicles with the N63 high performance engine are engineered with EfficientDynamics that provides fueleconomy without compromising on its “class leading” power and performance. To ensure these engines keep delivering the ultimate performance, we have designed this Care Package thatincludes a 6 point check, and if necessary, the replacement of one or more of the following powertraincomponents: Hot-Film Air Mass Sensors PIEZO High Pressure Fuel Injectors Engine Vacuum Pump Fuel System Low Pressure Sensor/Feed Line Fresh Air Intake Turbo Seals Crankcase Ventilation Lines (Hoses)
B0112242024-10-28. Warranty extension. The Electrical Machine Electronics (EME)Modules limited warranty for defects in materials or workmanship has been extended to 10years/120,000 miles as determined from the original in-service date
B1606232024-01-03. Service bulletin. Engine will crank but not start. There is no communication with the integrated fuel module (TFE) whendiagnosing with ISTA. The following two fault codes will be stored in the DME: 032B43 - Low fuel pressure system, electric fuel pump: pressure value too low CDA594 - Message (- 0x33E) missing, receiver DME, transmitter TFE
B0109192023-12-06. Service bulletin. DIESEL FUEL INJECTORS: LTD WTY EXTENSION TO 10 YEARS/120,000 MILES
B1702222022-10-31. Service bulletin. Coolant is leaking from under the car which is equipped with the S63 engine. A low coolant warning might also be displayed (CC Message ID166).
SIB1702222022-08-22. Service bulletin. Coolant is leaking from under the car which is equipped with the N63 engine. A low coolant warning might also be displayed (CC Message ID166).
SIB0114182022-08-22. Service bulletin. Component specific limited warranty extension for the Exhaust Gas Recirculation Valve.
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.