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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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Bulletins, newest first
B3302162018-12-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. Howling Noise from the Rear Differential. When coasting from 85 - 70 mph, there is a howling noise from the rear differential. CAUSE Resonance behavior during the running-in phase of the PHEV rear differential
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.
B8403142018-12-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. SI B84 03 14 February 2016 Communication Systems Technical Service This Service Information bulletin supersedes SI B84 03 14 dated October 2014. SUBJECT Bluetooth Connection Failures. There are various connectivity failures with the following devices: Apple iPhones Samsung S6 and the S6 Edge. Connectivity failure examples are: Call disconnection - Call is transferred back to the handset. In some instances the call is then transferred back to the vehicle. Contact List incomplete General connection failures CAUSE Apple iOS software (issue started with iOS 8.3 continues with iOS 9.x and its variants) Samsung S6 and S6 Edge device firmware CORRECTOPM None available at this time. We are currently working with the device manufacturer on a solution.
B6502162018-12-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. SUBJECT Audio System Speaker Testing. For audio system speaker testing there is a NED (Non Electrical Diagnosis) Test Plan available. CAUSE We previously recommended use of the Audio Test CD (ATC) from BMW. This CD has been discontinued.
B6501162018-12-10. Service bulletin. ELECTRICAL SYSTEM. SUBJECT Entry Head Unit Resets After Pairing a Bluetooth Phone. The Entry Head Unit may reset after pairing an Iphone or Android phone via Bluetooth to the vehicle. Incompatibility between stored characters in the phone (emoticon/emoji) and the Head Unit. See SI B84 03 12 about emoticon's effects on the vehicle.
B6409152018-12-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Service Information bulletin supersedes SI B64 09 15 dated January 2016. designates changes to this revision SUBJECT Whistling Noise Coming from the Center Vent - A/C is Off. A very high pitched whistling or beeping noise is heard coming from the center vents. The flow of refrigerant through the expansion valve at certain temperature differentials.
B6103142018-12-10. Service bulletin. ELECTRICAL SYSTEM. February 2016 General Electrical Systems Technical Service This Service Information bulletin supersedes SI B61 03 14 dated May 2015. SUBJECT Check Control Messages Related to Battery Charge during Cold Ambient Temperatures. On cold days (an outside ambient temperature below 15F), customers may notice a check control message related to the battery displayed on the instrument cluster and the control information display. The check control message (ID 229) is caused by a heavily discharged battery. The check control message is triggered when the current state of charge (SoC) of the battery approaches the minimum SoC that is required to start the vehicle (start capability limit).
B3601152018-12-10. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; EQUIPMENT. SI B36 01 15 February 2016 Wheel and Tires Technical Service This Service Information bulletin supersedes SI 36 01 15 dated October 2015. designates changes to this revision SUBJECT Check Control Message: Tire Pressure Monitor (RDCi) Failure. A Check Control Message states Tire Pressure Monitor (RDCi) has failed CAUSE Hardware in the remote control unit (FBD3 antenna)
B1303152018-12-10. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT. SI B13 03 15 February 2016 Fuel Systems Technical Service This Service Information bulletin supersedes SI B13 03 15 dated March 2015 and replaces SI B13 04 13 dated March 2014. SUBJECT N20, N26, N55, N63TU, S63TU and S55 Engines: Bosch Injector ETK Part Number Error. The current version of the ETK incorporates multiple part number errors for the Bosch type injectors. Ordering the injectors by VIN number or manual identification in ETK may result in an incorrect part number.
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.
B8408152018-12-10. Service bulletin. ELECTRICAL SYSTEM. "?SUBJECT During the QC1 the BMW Assist Test Call Fails . After the transport mode is deleted (during the QC1), a BMW Assist (SOS) test call is made by pressing the SOS/ E-Call button. However, the call only connects via voice (no data is transmitted). The operator indicates that a crash call has been sent. ATM fault code ""B7F348 - Provisioning without signature OTA"" is stored. The provisioning of the ATM (Advanced Telematics Module) has failed."
B6525152018-12-10. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). ?SUBJECT Incremental Map Update of the NBT EVO Head Unit . Customers may be receiving onscreen messages concerning updates of their navigation system. Database mapping procedure in vehicles with the NBT EVO Head Unit (Head Unit high 2) has been changed to automatic, periodic, Over- the-Air (OTA), regional, incremental updates. INFORMATION Customers may not be familiar with the messages seen prior to, during, and after this update which may prompt inquiries. The following information provides an overview of the automatic OTA process that has replaced the previously required BMW center visit for navigation map updates. UPDATE DETAILS Updates can occur up to 4 times per year, ensuring that customers have the newest map data available. At a minimum, updates occur during first 2 years of vehicle ownership at no additional charge to the customer. At additional customers expense updates can also occur for up to 4 years (depending upon vehicle retail date and BMW assist options selected). Please check the BMW connected drive service cockpit for details on an individual vehicles coverage. To access the BMW connected drive service cockpit refer to the attachment.
B6507092018-12-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Whistling Noise Coming from the Center Vent - A/C is Off . A very high pitched whistling or beeping noise is heard coming from the center vents. The flow of refrigerant through the expansion valve at certain temperature differentials.
B6409152018-12-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Whistling Noise Coming from the Center Vent - A/C is Off . A very high pitched whistling or beeping noise is heard coming from the center vents. The flow of refrigerant through the expansion valve at certain temperature differentials.
B6203162018-12-10. Service bulletin. ELECTRICAL SYSTEM. ?Clock gains or loses time. The time displayed in the KOMBI (instrument cluster) may gain or lose a few minutes each week. Internal KOMBI calculation error.
B6201162018-12-10. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:SOFTWARE. "Vehicles which have had the Instrument Cluster (KOMBI) replaced may display incorrect CBS (Condition Based Service) data after programming. AFFECTED VEHICLES Vehicles which require this Service Action to be completed will show it as ""Open"" when checked either in the ""Service Menu"" of DCSnet (Dealer Communication System) or with the Key Reader. Incorrect SW calibration loaded after KOMBI replacement."
B5144162018-12-10. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. ?EXTERIOR MIRROR: CREAKING NOISES. Accumulation of dust in the joint gap seal.
B3413162018-12-10. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR; SERVICE BRAKES, AIR:DISC:ROTOR; SERVICE BRAKES, AIR:DISC; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC. ?WHEEL COVER PILOT PROGRAM. BMW is piloting/testing a measure that is designed to help prevent brake disc/rotor surface corrosion on new vehicles during transportation and storage.
B1606162018-12-10. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM. ?SERVICE ACTION: REPLACE LOW-PRESSURE ELECTRIC IN-TANK FUEL Please perform the procedure outlined in this Service Information on all affected vehicles before customer delivery or the next time the vehicle is in the shop.
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.