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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

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
B8408182018-08-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. HEAD UNIT HIGH 2 RESET WHILE BLUETOOTH IS CONNECTED: The following event may cause an unexpected reset of the Head Unit High 2 (NBT EVO) when:
B8406162018-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. BMW ONLINE NON-FUNCTIONAL: CHECK ICC-ID IN ACCOUNT: BMW Online/BMW ConnectedDrive not functional.
B6113162018-07-16. Service bulletin. ELECTRICAL SYSTEM. KLE CHARGING FAULT 21E6E9: During the ISTA short test diagnosis, fault code 21E6E9 Ð ÒCharging electronics: Charging mode interruptedÓ is found stored in the KLE (Convenience Charging Electronics) module.
B6513162018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. NBT-EVO Head Unit Cannot be Swapped between Vehicles for Testing: 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.
B6212152018-05-21. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. INSTRUMENT CLUSTER OUTSIDE TEMPERATURE DISPLAY IMPLAUSIBLE: In the Instrument Cluster (Kombi) display you may observe an implausible outside temperature reading.
B8402142018-05-14. Service bulletin. ELECTRICAL SYSTEM. ConnectedDrive/BMW Assist System Diagnosis Information
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.
B6101182018-05-07. Service bulletin. ELECTRICAL SYSTEM. HIGH VOLTAGE SYSTEM: ISOLATION FAULTS: The Check Control message (CCM), "Powertrain malfunction!" is displayed.
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.
B8402182018-04-23. Service bulletin. ELECTRICAL SYSTEM. HEAD UNIT HIGH RESETS WITH CONNECTION OF IPHONE 8, IPHONE 8+ OR IPHONE X
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.
B1206182018-04-23. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. DME FAULT CODE CDC203: Various control units contain faults indicating missing messages from the battery management electronics

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