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Service bulletins for the 2017 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.

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

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

Bulletins, newest first
B6118172018-11-05. Service bulletin. ELECTRICAL SYSTEM. "SME FAULT CODE 21F02A. Upon starting the vehicle, the following CC message is displayed to the customer: "Powertrain malfunction!" (CCM-ID: 633) In addition, one or several of the following CC message(s) may be displayed: "Charging not possible" (CCM-ID: 804), "Hybrid system malfunctioning!" (CCM-ID: 585), "Drive. No restart" (CCM-ID: 586) or "Engine fault! Power loss" (CCM-ID: 29). Possible hardware defect of the safety box."
B6517152018-11-05. Service bulletin. ELECTRICAL SYSTEM. "?ACTIVE SOUND DESIGN (ASD) INOPERATIVE AFTER PROGRAMMING What's New: ? ISTA/P and ISTA 4 software level that contains the fix added to Correction and Procedure ? F31, F32, F33, F34, F36 vehicles added to Models ? Warranty information updated to include programming fix . After programming with ISTA/P V3.56.1 or ISTA/P V3.60: Active Sound Design (ASD) no longer provides simulated engine sounds. A fault is stored in the Active Sound Design (ASD) module. Fault Code 8053A5 ""ASD; invalid coding data for equalizing"". Invalid ASD coding data in two different versions of ISTA/P."
B6506162018-11-05. Service bulletin. ELECTRICAL SYSTEM. ?NBT HEAD UNIT ABORTS IMPORT OF CD Whats New: ? G12 (7 Series) removed ? I01 (i3) removed ? Warranty Section updated for removal of G12 and I01 . While importing a CD to the internal music collection of an NBT head unit the process aborts. You will see 'import error' on the radio display when this occurs. NBT Head Unit software
B6202172018-11-05. Service bulletin. ELECTRICAL SYSTEM. ?Instrument Cluster Failure at Low Ambient Temperature. Sporadically, at low temperatures, the instrument cluster (KOMBI) is not operating (display remains black). KOMBI software.
B6202172018-11-05. Service bulletin. ELECTRICAL SYSTEM. ?SeriesOptionDescription F22, F23, F30, F31, F32, F33, F34, F36, F25, F26, F48, 05AR Traffic Jam AssistantX. Sporadically, at low temperatures, the instrument cluster (KOMBI) is not operating (display remains black). KOMBI software.
B6103152018-11-05. Service bulletin. ELECTRICAL SYSTEM. ?Various Check Control Messages Caused by Shorted K- CAN This Service Information bulletin supersedes SI B61 03 15 dated June 2016. . The customer states that one or more of the following CC messages are displayed: 627 - Steering behavior: Drive moderately 070 - Steering: Drive moderately 765 - Rear-end collision restricted 850 - Pedestrian warning restricted 236 - Driving stabilization: Drive moderately 299 - SOS call system failure 042 - Brake system: Drive moderately After performing a vehicle test, one or more of the following fault codes are stored: ACSM - C9549A Message faulty (seat memory), ACSM receiver, driver's seat module transmitter FEM - D91DE0 No message, receiver FEM, transmitter TMSL FEM - D91EE5 No message, receiver FEM, passenger seat module transmitter ACSM - C9540C Message missing, receiver ACSM, transmitter FEM TMSL - D95402 Message missing, receiver TMSL, transmitter FEM KOMBI - E11454 No message, receiver KOMBI, transmitter REM FEM - D91DE6 No message, receiver FEM, transmitter TMSL TMSR - D99401 Message missing, receiver TMSR, transmitter FEM TMSR - D99402 Message missing, receiver TMSR, transmitter FEM FEM - 8041BA AHL system faulty FEM - D916C3 No message, receiver FEM, transmitter TCB ZBE - E2D403 No message, receiver CON, transmitter FEM-ZGM TRSVC - CA9428 Message incorrect, receiver TRSVC, transmitter PDC-REM TMSL- D95401 Message missing, receiver TMSR, transmitter FEM HU-H - S0397 MOST configuration was not stored TCB - E1445F KCAN2 or KCAN4: Line fault/electrical fault FEM - 8041B6 LWR faulty REM - E58468 Body CAN2; communication fault TRSVC - CA9427 Message incorrect, receiver all around vision camera, transmitter PDC/REM FEM - D91CEC Message missing, receiver FEM, transmitter REM Shorted K-CAN wiring under driver or passenger seat Shorted K-CAN2 wires were shorted between the left side trunk trim panel and the body of the vehicle Shorted K-CAN in left rear wheel well area Shorted K-CAN under center console trim Shorted K-CAN und
B5203172018-11-05. Service bulletin. ELECTRICAL SYSTEM; SEATS. ?MISSING AUDIO NOTIFICATION WHEN STORING SEAT MEMORY . When saving seat memory settings (Memory 1 or Memory 2) with a vehicle without navigation, there is no audio tone confirmation. Software error in control unit of Seat Module 2.
B6111182018-10-09. Service bulletin. ELECTRICAL SYSTEM. AFTER EXCHANGING THE FRONT ELECTRONIC MODULE (FEM), PROGRAMMING / ENCODING IS NOT POSSIBLE: After replacing the Front Electronic Module (FEM) for an applicable repair, programming / encoding is not possible.
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.
B6127172018-04-23. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. REPLACE BATTERY CHECK CONTROL MESSAGE: In-stock, new vehicle instrument cluster displays the red CCM ÒReplace BatteryÓ (ID # 460).
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.