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Service bulletins for the 2018 BMW M4

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.

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

By type

By component

Bulletins, newest first
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.
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.
B3103182018-05-07. Service bulletin. STEERING. CRACKING NOISE FROM FRONT OF VEHICLE WHILE TURNING OR PARKING: Cracking noises heard from the area of the front axle when rotating the steering while stationary or at low speed. Refer to the linked video https://tinyurl.com/y9lddolz
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.
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.
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.
B5402182018-04-23. Service bulletin. STRUCTURE:BODY. NOISES FROM THE C-PILLAR AREA OF THE CONVERTIBLE TOP: Cracking or clicking noises can be heard from the rear area of the convertible top (C-pillar area) when driving on uneven roads.
B3406152018-04-23. Service bulletin. SERVICE BRAKES. Grinding Noise from Rear Brakes: Pebbles, road grit, or other foreign materials caught between the brake protection plate and the brake disc may cause a disturbing noise in the rear axle area.
B3405152018-04-23. Service bulletin. POWER TRAIN. TICKING NOISE FROM THE FRONT AXLE WHEN CORNERING: The customer may complain of a metallic ticking noise from the front axle when cornering, maneuvering, parking or pulling away from a parking space.
B1222162018-04-23. Service bulletin. ENGINE. WATER INJECTION SYSTEM WATER LEVEL TOO LOW: Check Control (CC) Message Water level too low, engine performance only available to a limited degree is displayed.

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