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Service bulletins for the 2016 BMW 340i

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.

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

By type

By component

Bulletins, newest first
B1207182018-05-21. Service bulletin. ENGINE. DME FC 1C0102 IS STORED WITH NO OTHER RELATED FAULTS: The following fault has been stored in the Digital Motor electronics (DME) fault memory with no other engine oil pressure faults stored.
B8402142018-05-14. Service bulletin. ELECTRICAL SYSTEM. ConnectedDrive/BMW Assist System Diagnosis Information
B6509152018-05-14. Service bulletin. EQUIPMENT:ELECTRICAL. NBT Head Unit High (HU-H) Resets Intermittently or Permanently
B6309172018-05-14. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS. REAR TAIL LIGHT FAILURE: Exterior rear lights do not work.
B5144162018-05-14. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. EXTERIOR MIRROR: CREAKING NOISES: Creaking noise coming from either or both exterior rearview mirrors when folding in.
B5113142018-05-14. Service bulletin. LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK. Trunk Lid Does Not Open Completely: The trunk lid/hatch does not open fully when unlatched with remote or hands-free operation.
B2403172018-05-14. Service bulletin. POWER TRAIN. 8HP50 TRANSMISSIONS GEAR SHIFTS FROM REVERSE TO NEUTRAL: After a cold start, when the transmission gear selector is placed in R and driving resumes, intermittently transmission may shift to Neutral
B1227172018-05-14. Service bulletin. ELECTRICAL SYSTEM. ERRONEOUS INTERNAL FAULT 10501D IS STORED IN THE DME: The following fault is erroneously store in the Digital Motor Electronics (DME).
B1217172018-05-14. Service bulletin. ELECTRICAL SYSTEM. SERVICE ACTION: INSPECT / REWORK DME CONNECTOR: Due to missing sealing pins in the unused wiring slots of DME connector A368*1B, moisture ingress could occur increasing the risk of corrosion or electrical short circuits between pins.
B6513122018-05-07. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). HEADUNIT NAVIGATION MAPS (HU-H HU-H2 HU-B): The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain MY2013 vehicles with option 609 (7/2012+).
B6412162018-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC BLOWER NOT WORKING: HVAC blower is not working.
B6305162018-05-07. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES; EXTERIOR LIGHTING. HEADLIGHT ASSEMBLIES HAVE VISIBLE INTERNAL MOISTURE/CONDENSATION: Water on the inside (A) or misting (B) of both headlight lenses that is visible from outside.
B6101182018-05-07. Service bulletin. ELECTRICAL SYSTEM. HIGH VOLTAGE SYSTEM: ISOLATION FAULTS: The Check Control message (CCM), "Powertrain malfunction!" is displayed.
B5130162018-05-07. Service bulletin. LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH; LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK. TAILGATE UNINTENTIONALLY OPENS: Trunk/tailgate may open when vehicle is locked.
B1801182018-05-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. DIAGNOSING NOISE FROM THE REAR EXHAUST FLAP (B58): There is a rattling noise from the rear exhaust flap during initial start-up.
B1208182018-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. ROUGH RUNNING AND VARIOUS VANOS FAULTS STORED: The check engine light is illuminated and the vehicle may run rough at idle and while driving.
3202182018-05-07. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. CHECK CONTROL MESSAGE (CCM): ASSISTANCE SYSTEM RESTRICTED AFTER DELETING TRANSPORT MODE: The CCM assistance systems restricted or pedestrian protection system failed is displayed after deleting transport mode.
B8406182018-05-07. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. CONNECTEDDRIVE-REMOTE SERVICES DO NOT FUNCTION: Remote Services (such as locking and unlocking the car, vehicle location by honking the horn, flashing the lights or on the map in the BMW Connected App) do not function after vehicle has been sitting for extended amount of time (In excess of 20 hours).
B6623172018-05-07. Service bulletin. EQUIPMENT:ELECTRICAL. CONTACTLESS TAILGATE (SMART OPENER) IS TOO SENSITIVE: When the remote is located in the range of the Smart Opener operation may be the contactless tailgate (Smart Opener) opens / close unintentionally from objects in the vicinity of the rear of the vehicle; for example by a gas filling hose.
B6513162018-05-07. Service bulletin. EQUIPMENT. NBT-EVO Head Unit Cannot be Swapped between Vehicles for Testing. 'Component Protection Active': If either the NBT-EVO head unit or Body Domain Controller (BDC) are swapped into a different vehicle they will cause the head unit NBT-EVO to enter a locked mode once it recognizes a different VIN.
B8411172018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. BMW APPS RANDOMLY STARTS PLAYING ON ITS OWN: While listening to FM, or AM, or Satellite Radio (SDARs), the audio source randomly switches to BMW Apps (Pandora, Spotify, Audible etc.) with no input from driver or passenger.
B8402182018-04-23. Service bulletin. ELECTRICAL SYSTEM. HEAD UNIT HIGH RESETS WITH CONNECTION OF IPHONE 8, IPHONE 8+ OR IPHONE X
B6623172018-04-23. Service bulletin. FUEL SYSTEM, GASOLINE. CONTACTLESS TAILGATE (SMART OPENER) IS TOO SENSITIVE: When the remote is located in the range of the Smart Opener operation may be the contactless tailgate (Smart Opener) opens / close unintentionally from objects in the vicinity of the rear of the vehicle; for example by a gas filling hose.
B6218172018-04-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. FUEL GAUGE ERRONEOUS DISPLAY: Vehicle runs out of fuel but the instrument cluster still displays fuel remaining in the tank.
B6201182018-04-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. INSTRUMENT CLUSTER BLANKS OUT OR REMAINS DARK AFTER STARTING THE VEHICLE: Instrument cluster display goes black during starting or while driving.

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