WenmarOpen by Wenmar Pro

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

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
B6521202021-02-01. Service bulletin. SEATS; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT. ?NO PREVIEW IMAGES DISPLAYED IN THE REAR SEAT ENTERTAINMENT: The rear seat entertainment screens do not display any preview images at times.
B6208182021-02-01. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. ?INSTRUMENT CLUSTER DISPLAY SHAKES-SHIFTS TO THE LEFT: The Instrument cluster intermittently flickers, shakes and has shifted to the left. The fault is resolved once the vehicle goes into sleep mode. The fault can reoccur at any point.
B6203202021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MALFUNCTION INDICATOR LAMP (MIL) IS ILLUMINATED WITH FAULT MEMORY CDC152: The malfunction indicator lamp (MIL) is illuminated in the instrument cluster. The vehicles has no operating failures; only the MIL is illuminated.
B6126202021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. ?BMW DIGITAL KEY CARD IS NOT DETECTED WHEN PLACED ON THE NFC TRAY: The customer may have the following complaints: The Digital Key Card cannot be activated on the NFC (near field communication) charging tray (the activation pop-up does not appear although the Digital Key menu is present), Or the Digital Key Card is not detected when placed on the NFC tray.
B5408192020-12-21. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. SUNROOF REVERSES WHEN CLOSING: The sunroof reverses direction (anti-traps) just as the sunroof glass meets the wind deflector. The sunroof may not properly initialize as a result.
B3204202020-11-16. Service bulletin. ELECTRICAL SYSTEM; STEERING. GROANING NOISE DURING HEIGHT ADJUSTMENT OF THE ELECTRIC STEERING COLUMN: A groaning type noise is heard during the height adjustment.
B6619192020-09-14. Service bulletin. ELECTRICAL SYSTEM. COMFORT ACCESS AND COMFORT GO NOT POSSIBLE: Vehicle cannot be unlocked/locked or started via Comfort Access. Remote control functionality is restored by pressing any of the key buttons or by removing and reinstalling the remote control key battery.
B6515202020-09-14. Service bulletin. ELECTRICAL SYSTEM. HEAD UNIT RESETS WHEN NAVIGATION IS USED IN CERTAIN LOCATIONS: The head unit resets sporadically causing the CID to turn black and then starts up again after a short time with the message "Start navigation system". This only occurs during navigation guidance when the "3D building" function is used Software in the Head Unit High (HU-H3).
B6208182020-09-14. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT CLUSTER DISPLAY SHAKES-SHIFTS TO THE LEFT: The Instrument cluster intermittently flickers, shakes and has shifted to the left. The fault is resolved once the vehicle goes into sleep mode.
B0902182020-09-14. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. NEW ECU VALIDATION NEEDED AFTER REPLACING CERTAIN CONTROL MODULES: With introduction of the new Headunit HU-H3 (MGU Media Graphics Unit), there is a new protection mechanism against tampering. If one or more of the following components needs to be replaced, the secure connection between them must be re-established: MGU TCB Telematic Communication Box (ATM-02) RSE Rear Seat Entertainment and/or KOMBISP18 instrument cluster Prior to re-establishing this connection, an electronic certificate must be created in the BMW backend for importing into the Vehicle. After the replacement of one of the mentioned Modules, the Control Module needs a valid certificate for it to communicate with the other Modules.
B6512202020-08-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. BMW CONNECTEDDRIVE APPS ARE NO LONGER AVAILABLE AFTER PROGRAMMING: After programming vehicle with "20-03" software, BMW ConnecedDrive apps are no longer available in the head unit. Software in the Head Unit High (HU-H3).
B6507092020-08-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. NAVIGATION SYSTEM - REPORTING MISSING OR INCORRECT ROADMAP DATA: Do not replace parts and do not program the vehicle. Roads can change by up to 15% every year. To ensure the best navigation experience, we do everything in our power to create the best maps. Your reports help us to detect changes in your area and keep future versions of our maps as accurate as possible. Therefore, a road map error or missing data must be reported directly to the map supplier.
B6104192020-08-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.
B6104192020-07-27. Service bulletin. ELECTRICAL SYSTEM. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.
B5121192020-07-27. Service bulletin. ELECTRICAL SYSTEM. ACTIVE AIR FLAP FAULT DIAGNOSIS AND REPAIR: A check control message or MIL (Malfunction Indicator Lamp) may be illuminated, with faults stored related to the upper and/or lower active air flap(s).
B6609202020-06-15. Service bulletin. ELECTRICAL SYSTEM. SURROUND VIEW WRONG VEHICLE DISPLAYED AFTER PROGRAMMING: After programming the wrong vehicle model is displayed in the Central Information Display (CID) when the Surround View is activated.
B6105202020-06-15. Service bulletin. ELECTRICAL SYSTEM. CCM DISPLAYED "INCREASED BATTERY DRAIN" CAUSED BY CONTROLLER: A yellow CCM (Check Control Message) ID 415 is displayed- "Increased battery drain! // Battery. Electrostatic discharge at standstill / start engine. Energy management" The results of the Energy Diagnosis test plan identifies the Controller as the root cause of the CCM. The Controller delays the vehicle going to sleep by up to 6 minutes. In some cases this will cause the CCM 415 to be displayed when starting the vehicle. Replacing the Controller in this case will not correct this situation.
B5121192020-06-15. Service bulletin. ELECTRICAL SYSTEM. ACTIVE AIR FLAP FAULT DIAGNOSIS AND REPAIR: A check control message or MIL (Malfunction Indicator Lamp) may be illuminated with faults stored related to the upper and/or lower active air flap(s). Potential causes include: Faulty upper air flap actuator (G01 G02 G12 G30 G32) Faulty lower air flap assembly (G01 G02 G12 G30 G32) Software error in the DME affecting the upper flap (G01 G02 only)
B0112192020-06-15. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM; STEERING. FRONT GRILLE UPPER/LOWER ACTIVE AIR FLAPS - LTD WTY EXT TO 15 YEARS/150000: A check engine light or check control message is present for the active air flaps behind the kidney grilles. The potential component-related causes of these faults are a: 1. Mechanical issue with the linkage of the upper or lower active air flap; and/or an 2. Internal short circuit of the adjustment motor.
B8402202020-05-18. Service bulletin. ELECTRICAL SYSTEM. REMOTE 3D VIEW NOT AVAILABLE: Remote 3D View cannot be launched In the BMW ConnectedDrive App. Software error in the Advanced Telematics Module 2 (ATM2).
B8401202020-05-18. Service bulletin. ELECTRICAL SYSTEM. BMW CONNECTEDDRIVE SERVICES ARE NOT AVAILABLE: The BMW ConnectedDrive services are not available for an extended period. This may include: Calls in the BMW Assistance app (Concierge Service) Vehicle data and status in the BMW ConnectedDrive app Remote services Remote 3D View Real Time Traffic Information (RTTI) Weather News Software error in Advanced Telematics Module 2 (ATM2).
B6614182020-05-18. Service bulletin. ELECTRICAL SYSTEM. CHECK CONTROL MESSAGE CROSSING TRAFFIC WARNING WHILEPARKING: The check control message (CCM) "Crossing traffic warning. It is possible to continue driving" can appear when parking. This can occur when the vehicle is parked too close to adjacent solid walls such as a single car garage or an underground parking space. The wall can be on either side of the vehicle regardless if the vehicle is pulled in forwards or backed in. If the customer switches the vehicle off and starts it again immediately the same CCM may occur again.
B6114202020-05-18. Service bulletin. ELECTRICAL SYSTEM. DEACTIVATION OF THE INTERIOR MOVEMENT DETECTOR/TILT ALARM SENSOR IS NOT POSSIBLE: Customer complains that the interior movement detector and the tilt alarm sensor system cannot be deactivated by pressing the lock button on the remote control / BMW display key twice. The second button press on the radio remote control / BMW display key is not detected. Customer may have to press the button 3 times to deactivate the interior movement detector and tilt alarm sensor. CAUSE Software error in the control unit of the roof function center (FZD).
B8402142020-04-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: This Service Information Bulletin (Revision 7) replaces SI B84 02 14 dated May 2019. 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. 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.
B7204172020-04-27. Service bulletin. SEAT BELTS:FRONT:BUCKLE ASSEMBLY; ELECTRICAL SYSTEM. FALSE WARNINGS THAT THE FRONT PASSENGER SEAT IS OCCUPIED WITHOUT THE SEAT BELT BUCKLED: This Service Information Bulletin (Revision 10) replaces SI B72 04 17 dated September 2019. Acoustic and visual warnings indicate that the front passenger seat is occupied and the safety belt is not fastened when the seat is actually unoccupied. If the situation is currently present sit in the seat and move the seat to a slightly different position. The POL (Passenger Occupancy Light) light should now function correctly. In some cases the Air bag Warning Light was illuminated.

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