Service bulletins for the 2018 BMW 640i
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.
279 on file from NHTSA, as of 2026-10-19.
By type
By component
| B620518 | 2019-05-20. Service bulletin. ELECTRICAL SYSTEM. HEADS UP DISPLAY SPORADICALLY INOPERATIVE. Fault memory entry "B7F6E4 HUD: Fault in display backlighting "is stored in the instrument cluster. Intermittently the Head-Up Display (HUD) may deactivate. |
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| B612315 | 2019-05-20. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. The Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full This Service Information bulletin supersedes SI B61 23 15 dated April 2016. |
| B610419 | 2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019. |
| B511319 | 2019-05-20. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; STRUCTURE:BODY:DOOR. DOOR LATCHING COMPLAINTS IN COLD WEATHER. Below freezing temperatures: One or more doors (front or rear) may not open or After opening they may not correctly latch. A leaking seal on the outer Bowden release cable may allow water to enter the cable sheathing and freeze. |
| B170118 | 2019-05-20. Service bulletin. ENGINE AND ENGINE COOLING; STEERING. HEATER HOSE IS CONTACTING THE STEERING SHAFT This Service Information bulletin replaces SI B17 01 18 dated April 2018. |
| B661119 | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM. NIGHT VISION 3: INTERNAL SOFTWARE ERROR FAULT. During vehicle diagnosis of an unrelated issue the following erroneous fault may be stored in the Night Vision 3 control unit. |
| B610419 | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THE VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED. The customer's vehicle does not start due to a totally discharged battery. |
| B340319 | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. HUMMING/RUMBLING NOISES AFTER OPENING THE DOOR. After waking up/unlocking and entering the vehicle may cause a humming/rumbling noise to occur. |
| B640119 | 2019-03-18. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. DEACTIVATION OF THE AUTOMATIC AIR RECIRULATION. Customer request for deactivation of the automatic air recirculation function. |
| B630318 | 2019-03-18. Service bulletin. EXTERIOR LIGHTING; INTERIOR LIGHTING. LED LIGHT CARPET IS DIM OR DISTORTED. The light carpet may appear dim or distorted on one or both sides. See the photo below demonstrating the difference side to side. The light carpet LED lens may be blocked by debris. |
| B540718 | 2019-03-18. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. PANORAMIC SUNROOF DOES NOT OPEN OR CLOSE. The panoramic sunroof will not open or close. The sunroof may only tilt with no other functions available. There are no faults stored for the panoramic sunroof. A software error in the Roof Function Center (FZD). |
| B110119 | 2019-03-18. Service bulletin. ENGINE. ENGINE VIBRATIONS OR NOISE. One of the following complaints may be reported The engine runs erratically; The engine causes vibrations when running; Grinding noise from the engine compartment when engine is running. |
| B720417 | 2019-02-25. Service bulletin. SEAT BELTS:FRONT:WARNING LIGHT/DEVICES. FALSE WARNINGS THAT THE FRONT PASSENGER SEAT IS OCCUPIED WITHOUT THE SEAT BELT BUCKLED. Acoustic and visual warnings indicate that the front passenger seat is occupied and the seat belt is not fastened. |
| B661918 | 2019-02-25. Service bulletin. ELECTRICAL SYSTEM. FAULT CODE 804417 CAUSED BY THE REMOTE KEY. When a short test is performed as part of a workshop visit for an unrelated situation. |
| B651118 | 2019-02-25. Service bulletin. EQUIPMENT. FM RADIO STATIC HEARD BETWEEN 88 TO 97 MHZ. |
| B641418 | 2019-02-25. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. NO COOLING INTERMITTENTLY FROM VENTS. After a long journey (more than 30 minutes). |
| B111516 | 2019-02-25. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. B58 ENGINE: OIL LEAK FROM TURBOCHARGER. Engine oil (1) can be seen leaking from the bottom of the turbocharger near the band clamp (2). The turbocharger band clamp is loose. |
| B160818 | 2019-02-25. Service bulletin. FUEL SYSTEM, GASOLINE. The fuel delivery unit (in-tank fuel pump) may be incorrect part installed for the Model/Market. |
| B110717 | 2019-02-25. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. FAULT 118002 - MIXTURE TOO RICH SETS DURING WINTER WITH COLD AMBIENT TEMPERATURES. The Service Engine Soon (MIL) light is on with the following fault stored in the Digital Motor Electronics (DME). Fault: 118002 - Mixture too rich In the situation being described. |
| B630418 | 2019-02-25. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. DAYTIME RUNNING LIGHT IS DIM OR DISCOLORED. One or more of the LED daytime running lights are dim or discolored. The connection between the LED module and light tube inside the headlight is damaged. |
| B540718 | 2019-02-25. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. PANORAMIC SUNROOF DOES NOT OPEN OR CLOSE. The panoramic sunroof will not open or close. The sunroof may only tilt with no other functions available. There are no faults stored for the panoramic sunroof. A software error in the Roof Function Center (FZD). |
| B510718 | 2019-02-25. Service bulletin. VISIBILITY; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. POWER WINDOWS WILL NOT INITIALIZE AFTER WINDOW LIFT MOTOR REPLACEMENT. The windows are unable to be initialized after replacement of a window lift motor. |
| B661618 | 2019-01-07. Service bulletin. EQUIPMENT. COMFORT ACCESS AND PASSIVE GO DO NOT WORK AFTER REPLACING A REMOTE KEY. Note: This situation only affects the listed vehicles with a factory I-level lower than 18-03-XXX. After teaching in a new replacement radio remote key (aka radio-operated key), Comfort Access keyless entry and Passive Go (aka Convenience Starting) are no longer possible. However, it is possible to start the engine by holding the new key to the ring antenna at the right side of the steering column. CAUSE Software error in the remote key, and/or the Display Key where applicable. |
| B660218 | 2019-01-07. Service bulletin. EQUIPMENT. RADIO REMOTE SPORADICALLY INOPERATIVE. INFORMATION All required parts can be found in the Electronic Parts Catalog. |
| B520518 | 2019-01-07. Service bulletin. ELECTRICAL SYSTEM. SEAT MEMORY SWITCH SPORADICALLY NOT FUNCTIONING. Selecting one of the saved seat positions (via the memory seat position switch on the door panel), fails to work. A saved seat position cannot be retrieved. The memory function works again after a terminal change or backrest width adjustment. Note: Manual seat adjustment using the button for forward/back seat adjustment still works. Software error in the seat module. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.