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Service bulletins for the 2012 BMW 328i

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.

623 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
1214122019-07-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; EQUIPMENT. N55 Engine: Various Faults Stored in DME Related to VANOS and Camshaft Position. A rattling noise can be heard from the engine compartment; the engine has a loss of power; and the Service Engine Soon lamp is illuminated. One or more of the following faults may be stored. E70, E71, E82, E88, E90, E92 and E93: 2D5A - VANOS, intake: control fault, camshaft sticking 2D5B - VANOS, intake: control fault, position not reached 2D60 - VANOS, exhaust: control fault, camshaft sticking 2D61 - VANOS, exhaust: control fault, position not reached 2D9F - camshaft input sensor: signal implausible 2DA1 - Camshaft exhaust sensor: signal implausible 300C - Camshaft input sensor: signal high 300D - Camshaft input sensor: signal low 300E - Camshaft exhaust sensor: signal high 300F - Camshaft exhaust sensor: signal low F07, F10, F12, F13 and F25: 130104 - VANOS, intake: control fault, camshaft sticking 130108 - VANOS, intake: control fault, position not reached 130304 - VANOS, exhaust: control fault, camshaft sticking 130308 - VANOS, exhaust: control fault, position not reached 130E11 - Camshaft input sensor: signal implausible 130F11 - Camshaft exhaust sensor: signal implausible 164020 - Camshaft input sensor: signal high 164021 - Camshaft input sensor: signal low 164030 - Camshaft exhaust sensor: signal high 164031 - Camshaft exhaust sensor: signal low CAUSE One or both (intake and/or exhaust) of the VANOS gear assemblies have failed; the attaching bolts may have also loosened and/or broken.
1102082019-07-09. Service bulletin. EQUIPMENT; ENGINE. "Power Reduction, FC 2A82 Intake VANOS and/or FC 2A87 Exhaust VANOS Camshaft Faults are Stored in DME. The ""Service Engine Soon"" (MIL) lamp is illuminated and engine power reduction is perceived. This situation can occur after driving for some time with the engine at full operating temperature. If the ignition is cycled, the engine then usually performs normally. The following faults are stored in the DME: * 2A82 VANOS intake - stiff; jammed mechanically * 2A87 VANOS exhaust - stiff; jammed mechanically * 130108 VANOS intake: control fault, position not reached * 130308 VANOS exhaust: control fault, position not reached For the N54 engine, the following secondary faults may also be stored: * 120408 Charge-air pressure control, cut-out: Boost pressure accumulation blocked * 3100 Boost-pressure control, deactivation - boost-pressure buildup prohibited CAUSE The VANOS faults can be caused by an insufficient oil pressure supply to the inlet VANOS adjustment unit. To effectively move the camshafts to the target positions in the specified time and under all engine conditions, sufficient oil pressure supply to the VANOS control pistons must always be available. If engine operation requires the VANOS system to quickly advance or retard the intake or exhaust camshaft, faults may be stored if the camshaft is ""late"", or does not reach the target position. In this situation, engine power may be reduced and a check control message is displayed. The consequential fault 3100 or 120408 can also be set in the DME fault memory as well."
B1220192019-06-24. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. DELIVERY STOP: PROGRAM CONTROL UNITS (DME). A Delivery Stop has been issued (effective May 16 2019) on certain Model Year 2016-2020 BMW vehicles that have been produced between June 19 2015 and April 17 2019. A software error within the Digital Motor Electronics (DME) may cause a miscalculation of an onboard diagnostic (OBD) function. All vehicles will need a software update (no parts required).
B1107172019-06-24. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 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). In the situation being described the fault is primarily stored during the cold winter months along with the use of winter fuel.
B6104192019-05-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019.
B1114172019-03-18. Service bulletin. ENGINE. N20 AND N26 ENGINES TURBOCHARGER ELECTRIC WASTEGATE ACTUATOR LINKAGE PIN CORROSION This Service Information bulletin replaces SI B11 14 17 dated February 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.
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
B1106162018-12-10. Service bulletin. EQUIPMENT; ENGINE. N51, N52, N52K and N52T Engines: Various Eccentric Shaft Sensor Faults stored in the DME - Diagnostic Hints This Service Information bulletin and attachment supersedes SI B11 06 16 dated April 2016.. The customer may complain about one of the following: Rough engine running Engine cannot be started (crank no start) Check Engine Light illuminated One or more of the following faults may be stored in the DME: 2A37 - Valvetronic, eccentric shaft sensor plausibility 2A47 - Valvetronic, eccentric shaft, signal plausibility 134E08 - Eccentric shaft plausibility (on F10, F25 vehicles only) CAUSE The VVT eccentric shaft sensor connector, and/or DME connector may have oil contamination due to oil leakage at the VVT sensor gasket.
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.
B1106162018-12-10. Service bulletin. ENGINE AND ENGINE COOLING. N51, N52, N52K and N52T Engines: Various Eccentric Shaft Sensor Faults stored in the DME - Diagnostic Hints. The customer may complain about one of the following: Rough engine running Engine cannot be started (crank no start) Check Engine Light illuminated One or more of the following faults may be stored in the DME: 2A37 - Valvetronic, eccentric shaft sensor plausibility 2A47 - Valvetronic, eccentric shaft, signal plausibility 134E08 - Eccentric shaft plausibility (on F10, F25 vehicles only) CAUSE The VVT eccentric shaft sensor connector, and/or DME connector may have oil contamination due to oil leakage at the VVT sensor gasket.
B1221102018-12-10. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. N51 Engine: Service Engine Soon Lamp Illuminated - Loss of Power and Various Faults Stored in the DME. The customer complains that the Service Engine Soon lamp is illuminated. The vehicle has lost power; the engine cranks but will not start; and various faults are stored in the DME for engine misfire and/or mixture adaptations. CAUSE The vehicle has lost fuel system delivery pressure due to a loose or split fuel line inside the fuel tank. The failure is related to an unfavorable stacking of tolerances between the rubber fuel hose and the plastic regulator nipple or deterioration of the rubber hose construction material.
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.
B0101162018-12-10. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. N20 Engine Coolant Thermostat: Limited Warranty Extension to 10 Years/120,000 Miles F30 (320i Sedan) Model Years 2013 and 2014 produced from 2/28/2013 to 3/31/2014 F30 (320i xDrive Sedan) Model Years 2013 and 2014 produced from 2/26/2013 to 3/31/2014 F30 (328i Sedan) Model Years 2012, 2013 and 2014 produced from 10/19/2011 to 3/31/2014 F30 (328i xDrive Sedan) Model Years 2013 and 2014 produced from 11/23/2011 to 3/29/2014 F31 (328i xDrive Sports Wagon) Model Year 2014 produced from 12/05/2012 to 3/29/2014 F32 (428i Coupe) Model Year 2014 produced from 6/27/2013 to 3/31/2014 F32 (428i xDrive Coupe) Model Year 2014 produced from 3/13/2013 to 3/28/2014 F33 (428i xDrive Convertible) Model Year 2014 produced from 7/17/2013 to 3/31/2014 F34 (328i xDrive Gran Turismo) Model Year 2014 produced from 6/12/2013 to 3/31/2014 With the N20 engine. This is NOT a notice of a Recall or Service Action. There is no immediate repair required unless the BMW vehicle is currently experiencing this problem. Customer Notification Letter - VIN and Component-specific Warranty Extension Even though this is NOT a Recall, BMW NA will be sending VIN-specific customer notification letters in a phased release.
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.
B0703142018-12-10. Service bulletin. ENGINE; STEERING; ELECTRICAL SYSTEM; EQUIPMENT. This Service Information bulletin supersedes SI B07 03 14 dated October 2015. Diagnosing Stored Fault Codes to Help Avoid Repeat Repair Visits. Fault codes stored in vehicles being serviced are not being diagnosed, leading to repeat repair visits (source- Analysis of FASTA data and repeat repair visit reports). INFORMATION Where diagnosis (vehicle or short test) with ISTA has already started, it is important to diagnose the fault code(s) listed below (when they are stored in the vehicle) to find their root cause during the current workshop visit. This will help lead to a reduction in workshop repeat repair visits and higher customer satisfaction.
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.

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