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Service bulletins for the 2018 BMW 430i

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.

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

By type

By component

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
B5124182018-11-26. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE. SERVICE ACTION. RE-WORK SEAL OF FUEL FILLER HOUSING. The fuel filler pipe seal is possibly not mounted and/or only poorly mounted over the wheel arch flange. If incorrectly installed, water may leak into the luggage compartment. Incorrect installation during production.
B6509152018-11-05. Service bulletin. EQUIPMENT. SI B65 09 15 November 2016 Audio, Navigation, Monitors, Alarms,SRS Technical Service NBT Head Unit High (HU-H) Resets Intermittently or Permanently. The Head Unit-High (HU-H) resets intermittently or permanently. 1. The display is inoperative and there is no audio output 2. Automatic system start-up after a couple of seconds Fault Code E1C440 set No Fault Codes set Software error in the Head Unit High (HU-H)
B8402142018-11-05. Service bulletin. EQUIPMENT. ConnectedDrive/BMW Assist System Diagnosis Information This Service Information bulletin replaces SI B84 02 14 dated July 2014 What's New: Model - Removed models which no longer support BMW Assist functionality and added new models. Procedure - Add step requesting print out of ConnectedDrive Service Cockpit page Information - Add SI for ConnectedDrive Service Cockpit; updated the hyperlinks and email address for CD support team; deleted scenario for old CDMA unit which are no longer supported. ConnectedDrive/BMW Assist features are partially or completely inoperative. This Service Information bulletin is being published because vehicles are down for an extended period of time when researching system failures with ConnectedDrive or BMW Assist. This Service Information bulletin will assist you both in identifying the issue and providing technical support. CAUSE Not enough information is available for BMW NA engineers to assist the technician in diagnosing the root cause.
B6406132018-11-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. A/C Cooling: Intermittent Reduction of Air Flow What is new The date in repair procedure and warranty section has been changed for vehicles produced to September 30, 2013 and from October 1, 2013.. Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. INFORMATION Possibility of reproducing this situation is improved by the following conditions: High outside ambient temperature High humidity Note: It is very difficult to duplicate this issue. The fault may be reproduced under the following conditions: Air-conditioning system switched on Driving Experience switch NOT set to Eco Pro Slower fan speeds Temperature setting below 68F (20C) Trip duration at least 30 minutes Outside temperature above 68F (20C) NOTE: After parking the vehicle or switching off the air-conditioning system for at least 20 minutes, the symptom disappears (ice melts off evaporator and puddles under the car from the A/C drains). Evaporator starts to freeze up due to the position of the evaporator temperature sensor.
B8409182018-10-09. Service bulletin. EQUIPMENT. PHONE CONTACTS: HEADUNIT BASIC 2 SORTING ORDER: Improper sorting of phone contacts, in the on-board computer or in the Central Information Display (CID), upon connecting to the vehicle:
B8402142018-10-09. Service bulletin. EQUIPMENT. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: ConnectedDrive/BMW Assist features are partially or completely inoperative.
B6513162018-10-09. Service bulletin. EQUIPMENT. COMPONENT PROTECTION ACTIVE. HEAD UNITS CANNOT BE SWAPPED BETWEEN VEHICLES FOR TESTING.: If either the head unit (NBT-EVO or ENTRY-NAV-EVO) or the Body Domain Controller (BDC) are swapped into a different vehicle they will cause the head unit to enter a locked mode once it recognizes a different VIN.
B6507092018-10-09. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
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.
B6511172018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION PRO (NBT EVO) MAP UPDATE NOT POSSIBLE, NAVIGATION DOES NOT START: Navigation system will not start at all or the: ÒNavigation system startsÓ message is permanently displayed; or
B6507092018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
B8403142018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL. Bluetooth Connection Failures: There are various connectivity failures with the following devices: Apple iPhones: Samsung S6 and the S6 Edge.
B6513162018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NBT-EVO (NEXT GENERATION NAVIGATION PROFESSIONAL) HEAD UNIT CANNOT BE SWAPPED BETWEEN VEHICLES FOR TESTING. ÕCOMPONENT PROTECTION ACTIVEÕ
B6503182018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. NO AUDIO PLAYBACK AFTER REPLACING THE HEAD UNIT HIGH 2 (HU-H2): After replacing the Head Unit High (HU-H2) and performing ISTA4 programming, there is no audio playback.
B8408182018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. 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:
B8407182018-05-21. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. IPHONE: CALL LIST MISSING AFTER RESTART: The call list from iPhone 8 or iPhone X, that is displayed, is missing after cycling the ignition.
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.
B6525172018-05-14. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. ENTRY EVO HEAD UNIT WILL NOT PLAY MP3 FORMATTED CD's: Data CDÕs (encoded as MP3Õs) can NOT be played.
B6412162018-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC BLOWER NOT WORKING: HVAC blower is not working.
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).
B8404182018-05-07. Service bulletin. EQUIPMENT:ELECTRICAL. BLUETOOTH AND USB AUDIO PLAYBACK FUNCTIONS MISSING - IPHONE: Playlists, song titles, etc. from iPhone do not display on Head Unit Basic 2.
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.

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