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Service bulletins for the 2018 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.

80 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
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.
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.
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.
B7102182018-05-07. Service bulletin. EQUIPMENT:OTHER:LABELS. DELIVERY STOP: REPLACE UNDERHOOD EMISSIONS LABEL: A Delivery Stop has been issued (effective March 2, 2018) on Model Year 2018 BMW 3 Series vehicles that have been produced from November 14, 2017 Ð February 11, 2018. The affected vehicles were equipped with an incorrect emissions label which must be replaced.
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.

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