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Service bulletins for the 2014 BMW 328d

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.

501 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
B0104182019-05-20. Service bulletin. ENGINE. N47T/N57T DIESEL PARTICULATE SENSOR: LIMITED WARRANTY EXTENSION TO 10 YEARS/120000 MILEAGE This Service Information bulletin supersedes SI B01 04 18 dated April 2018.
B1101192019-03-18. Service bulletin. ENGINE. ENGINE VIBRATIONS OR NOISE. One of the following complaints may be reported The engine runs erratically; The engine causes vibrations when running; Grinding noise from the engine compartment when engine is running.
B1601192019-02-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. ENGINE STALLS AFTER STARTING OR WILL NOT START. The engine stalls right after starting (when stationary).
B1107172019-02-25. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. FAULT 118002 - MIXTURE TOO RICH SETS DURING WINTER WITH COLD AMBIENT TEMPERATURES. The Service Engine Soon (MIL) light is on with the following fault stored in the Digital Motor Electronics (DME). Fault: 118002 - Mixture too rich In the situation being described.
B0119182019-02-25. Service bulletin. EQUIPMENT; ENGINE. N47T/N57T NITROGEN OXIDE SENSOR (NOX) BEFORE AND AFTER THE SCR: LIMITED WARRANTY EXTENSION TO 10 YEARS/120.
1215132018-12-17. Service bulletin. ENGINE AND ENGINE COOLING. N20 and N26 Engine: Various VANOS System Faults Stored in DME. The Service Engine Soon lamp and Engine Malfunction warning are illuminated, and the vehicle has reduced power output. Various faults related to VANOS operation are stored in the DME. While performing the test plan, the results may appear to be inconclusive because the fault will not clear from DME fault memory. CAUSE This is due to a programming error associated with ISTA/P 2.49 and lower. The error is corrected with ISTA/P 2.50.2 or higher.
B1113152018-12-10. Service bulletin. ENGINE. The plastic oil filter housing may fail and lead to an internal and/or external engine oil or coolant leak.
B6212162018-12-10. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. "CCM - ""COOLANT LEVEL LOW"". Sporadically, while driving in ePower mode, a ""Coolant Low"" Check Control Message appears, even though coolant is at the specified level. FEM (Front Electronic Module) Control unit software error"
B1107162018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE. Diesel Engine: Intake Manifold Damaged. The Service Engine Soon light is on. There may also be: Complaints of lack of engine performance An exhaust smell coming from the engine area. The following fault codes may be stored in the DDE: 24CE00 - Hot film air mass meter: Ratio of measured to calculated air mass too high 27F000 - Charge air hose monitoring in idle: Charge air hose fallen down 290900 - Air system, air to EGR air mass flow plausibility: Measured air mass compared to calculated air mass too high 290A00 - Air system, air to EGR air mass flow plausibility: measured air mass compared to calculated air mass too high and high charging pressure control deviation 1. Excessive thermal load from the EGR system on the intake components 2. An excessive or unmetered air leak in the intake/charge air system
B1209162018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. N20 - The Service Engine Soon Light is On with DME Fault 118602 Stored. The Service Engine Soon light is on (MIL) with only the following oxygen sensor fault stored. 118602 - Oxygen sensor before catalytic converter, fine mixture control: exhaust gas after catalytic converter too lean CAUSE An actual engine related problem and/or DME software diagnostic
B1116152018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. N20 and N26 engine: Smoke from Exhaust when Starting a Cold Engine. When starting a cold engine, blue smoke can be seen emitting from the exhaust tailpipe for approximately 10-20 seconds. No turbo charger boost faults are stored and no drivability issues can be detected. CAUSE When the vehicle is parked overnight the engine oil pressure will equalize and may leak past the turbo charger exhaust side turbine seal.
B1126152018-12-10. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. SI B11 26 15 March 2016 Engine Technical Service This Service Information Bulletin supersedes SI B11 26 15 dated February 2016. The upper crankshaft guide bearing may wear out prematurely. The wear on the upper guide bearing can cause the clutch pedal to malfunction during shifting. The Engine Malfunction warning may be illuminated and a fault will be stored in the DME memory for the crankshaft sensor. Noise may be heard from the lower engine and transmission bell housing area. Engine damage can occur in rare occasions.
B1102162018-12-10. Service bulletin. ENGINE; ELECTRICAL SYSTEM. N47T Oxygen Sensor Faults Caused By Thermal Shock Damage. Service Engine Soon (MIL) is illuminated with any of the following faults stored in the DDE: 282D00 - Oxygen sensor before catalytic converter, heating, activation: Short circuit to B+ 282E00 - Oxygen sensor after catalytic converter, heating, activation: Short circuit to B+ 283000 - Oxygen sensor after catalytic converter, heating, activation: Short circuit to ground 283300 - Oxygen sensor before catalytic converter, heating, activation: Open circuit 283400 - Oxygen sensor after catalytic converter, heating, activation: Open circuit 284E00 - Oxygen sensor after catalytic converter, Nernst voltage, signal: Open circuit 284F00 - Oxygen sensor before catalytic converter, pump current, signal: Open circuit 285000 - Oxygen sensor after catalytic converter, pump current, signal: Open circuit 285100 - Oxygen sensor before catalytic converter, virtual ground, signal: Open circuit 285200 - Oxygen sensor after catalytic converter, virtual ground, signal: Open circuit 285A00 - Oxygen sensor after catalytic converter, signal: Short circuit to B+ The oxygen sensor heating is active before normal moisture condensation in the exhaust has been eliminated during engine operation (dew point is not reached) resulting in incorrect sensor operation.
B1233142018-12-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; POWER TRAIN. This Service Information bulletin supersedes SI 12 33 14 dated December 2015. SUBJECT Fault Code 1D2008 Stored in DME. The Service Engine Soon light is on. Fault Code 1D2008: Map thermostat: jammed open is stored in the DME. There may also be a complaint of low heat output with lower outside temperatures. CAUSE During the engine warm-up, the engine coolant does not reach operating temperature within the DME's allowable time limits. This is caused by either a faulty thermostat inside the transmission oil heat exchanger or a faulty engine characteristic map thermostat.
B1126152018-12-10. Service bulletin. POWER TRAIN; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. The upper crankshaft guide bearing may wear out prematurely. The wear on the upper guide bearing can cause the clutch pedal to malfunction during shifting. The Engine Malfunction warning may be illuminated and a fault will be stored in the DME memory for the crankshaft sensor. Noise may be heard from the lower engine and transmission bell housing area. Engine damage can occur in rare occasions.
B1116152018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. February 2016 Engine Technical Service This Service Information Bulletin supersedes SI B11 16 15 dated September 2015 SUBJECT N20 and N26 engine: Smoke from Exhaust when Starting a Cold Engine. When starting a cold engine, blue smoke can be seen emitting from the exhaust tailpipe for approximately 10-20 seconds. No turbo charger boost faults are stored and no drivability issues can be detected. CAUSE When the vehicle is parked overnight the engine oil pressure will equalize and may leak past the turbo charger exhaust side turbine seal.
B1110152018-12-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. ?Service Action: Replace the Thermostat. Please perform the procedure outlined in this Service Information on all affected vehicles before customer delivery. In the event the customer has already taken delivery of the vehicle, please perform the procedure the next time the vehicle is in the shop. This Service Information bulletin supersedes SI B11 10 15 dated January 2016.
B1114152018-12-10. Service bulletin. ENGINE AND ENGINE COOLING. SI B11 14 15 October 2015 Engine Technical Service This Service Information bulletin supersedes SI B11 14 15 dated October 2015. The plastic oil filter housing may fail and lead to an internal and/or external engine oil or coolant leak.
B1110152018-12-10. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. The Service Engine Soon light is on with corresponding fault codes in the DME for the engine thermostat.
6406132018-12-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING. A/C Cooling: Intermittent Reduction of Air Flow. The customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than one hour. The complaint can vary due to one or more of the following variables: * High outside ambient temperature * Too much humidity * A/C temperature and fan settings set too low for too long Note: It is very difficult to duplicate this issue due the required outdoor weather conditions and length of driving time needed. CAUSE Evaporator starts to freeze up due to the position of the evaporator temperature sensor
1217132018-12-03. Service bulletin. ENGINE; POWER TRAIN. N55: Engine Difficult to Start at Cold Ambient Temperatures. The complaint may include any of the following symptoms: * The engine stalls immediately after a cold start before driving away * The engine may run roughly or misfire after a cold start * The engine does not start cold or may take several attempts * To assist starting when cold, the accelerator may need to be depressed slightly and the idle speed raised for a few seconds so the engine does not stall This can occur most frequently at outside ambient temperatures between -15°C and + 15°C. It is possible that the Service Engine Soon (MIL) lamp is on with misfire fault(s) stored, but it is equally possible that there will be no faults stored in the DME. Unfavorable DME software Cold start or idling problems may arise due to poor fuel quality. The use of summer fuel during cold outside temperatures may also lead to such problems.
1701132018-12-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Service Action: Replace Coolant Expansion Tank. The low coolant level warning may come on in the information display. CAUSE Insufficient contact at the electrical connector for the coolant level sensor causes an inaccurate reading of the coolant level.
1216112018-12-03. Service bulletin. ENGINE; POWER TRAIN. N55 Engine Failsafe - FC 120308 Boost Pressure Control, Plausibility: Pressure Too Low Stored in DME Fault Memory. INFORMATION The customer complains the SES is illuminated and the engine has reduced power (engine failsafe mode).
1215132018-12-03. Service bulletin. ENGINE. N20 and N26 Engine: Various VANOS System Faults Stored in DME. The Service Engine Soon lamp is illuminated; Engine Malfunction warning is illuminated; and the vehicle has reduced power output. Various faults related to VANOS operation are stored in the DME. While performing the test plan, the results may appear to be inconclusive because the fault will not clear from DME Fault Memory. The ISTA/D diagnostic test plan does incorporate a VANOS bleed function, but it does not advise the technician to bleed the VANOS system after a VANOS or engine oil supply component replacement. CAUSE This is due to an error in the current level of ISTA/D. The error will be corrected with ISTA/D 2.41.0.
B1209182018-11-26. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. NOISE FROM ENGINE WHEN STARTING. Noise when starting the engine. Engine making a rattling/grinding noise near the 12 volt starter motor. The following fault has been stored in the DME fault memory: * 21A511 - Start system, pinion starter motor: Timeout The following faults are also possible: * 21A504 - EGS, separation clutch: jammed open * 21A50A - Start system, pinion starter: Timeout successively occurred multiple times * 21A510 - Start system, EME: Timeout Consequential damage to flywheel (Torsional vibration damper) and automatic transmission may have also occurred. The starter motor is broken. It may be indicated by:

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.