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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
B6124172018-10-09. Service bulletin. STEERING. STEERING WHEEL BUTTONS DO NOT FUNCTION RELIABLY: Sporadic or continuous malfunction of multifunction steering wheel buttons
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.
B3404142018-10-09. Service bulletin. SERVICE BRAKES. Diagnosis of Compound Brake System Complaints in M Vehicles:
B3103182018-10-09. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. 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.
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:
B5203182018-10-09. Service bulletin. SEATS. MEMORY SEAT ADJUSTMENT IS LIMITED: After programming the vehicle with ISTA 4.10.2x, the adjustment range of the memory seat may restricted.
B1223182018-10-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. S55 - CHECK CONTROL MESSAGE: DRIVE FAULTY: Check Control Message (CCM) ÒDrive faultyÓ is display for 5 seconds
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.
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:
B5409072018-08-06. Service bulletin. STRUCTURE; STRUCTURE:FRAME AND MEMBERS. RETRACTABLE HARDTOP STATUS REQUEST SUPPLEMENT
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.
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.
B5130162018-07-16. Service bulletin. STRUCTURE:BODY:TAILGATE. TAILGATE UNINTENTIONALLY OPENS: Trunk/tailgate may open when vehicle is locked.
B3101122018-07-16. Service bulletin. STEERING; POWER TRAIN:AXLE ASSEMBLY. CRACKING NOISES FROM THE FRONT AXLE AREA WHILE TURNING THE WHEELS, WHEN STATIONARY OR PARKING: Cracking noises are heard from the front axle area while maneuvering at low speeds (e.g., parking lot maneuvers) or when turning the steering wheel while stationary.
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.
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.
B3405152018-05-21. Service bulletin. SUSPENSION:FRONT; SUSPENSION:FRONT:WHEEL BEARING. 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.
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.

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