2018 BMW 640I Technical Service Bulletins

279 technical service bulletins (TSBs) are on record for the 2018 BMW 640I. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11028928Feb 11, 2026Seats, Electrical system, Air bags. A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. 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.
• 11019575Jun 10, 2025Air bags. The Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in-service / first delivery date.
• 11018552May 1, 2025Air bags. A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. 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.
• 11017101Apr 18, 2025Air bags, Electrical system. The Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in-service / first delivery date.
• 11000579May 2, 2024Engine. Evap system purge (vent) valve ext ltd wty (elw) 15/150
• 10252031Mar 14, 2024Exterior lighting. One or more of the LED daytime running lights are dim or discolored.
• 10252038Mar 4, 2024Engine cooling. Check Control message (CCM) indicates: (ID 213): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 - Starter alternator / belt for 48V system (OSA_RIEMEN_RISS): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine…
• 10249437Jan 16, 2024Visibility (wipers, defrost, mirrors), Electrical system. The basic conditions for initializing the power windows are not met.
• 10249027Jan 11, 2024Electrical system. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.
• 10249032Jan 5, 2024Electrical system, Equipment. The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 – “HU-H: Reset” will be stored in the HU-H3.
• 10249015Jan 5, 2024Fuel system. A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system(NVLD natural vacuum leak detection).
• 10249017Jan 4, 2024Steering. SITUATION Unusual noises occur only when operating the steering column in the axial direction. 1. A one-time thump sound at the start of movement Shortly after the steering column starts moving, retracting, or extending, a one-time thump noise is heard. See attached video V32 03 23 2. Humming noise while steering column extends in the axial direction. The sound is only heard when the steering column is extended…
• 10245365Nov 13, 2023Engine cooling. Pressure control valve (pcv) extended ltd wty 15 years/150,000 miles
• 10245367Nov 9, 2023Engine cooling. Check Control message (CCM) indicates: (ID 213): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 - Starter alternator / belt for 48V system (OSA_RIEMEN_RISS): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine…
• 10242694Aug 1, 2023Seats. ?The front seat will not calibrate/initialize, and the stored faults cannot be deleted.
• 10242691Aug 1, 2023Steering. ?Unusual noises occur only when operating the steering column in the axial direction.
• 10239614Jun 1, 2023Visibility (wipers, defrost, mirrors). The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings.
• 10239611Jun 1, 2023Electrical system, Exterior lighting. Headlight check control (CC) message 128 "High beam headlight failure" is displayed. The following fault codes are stored during a vehicle test: 80419A - Left high-beam headlight: Short circuit and/or 8041A5 - light outputs: Number of permitted short circuit cycles exceeded
• 10239605Jun 1, 2023Wheels. The Dynamic Stability Control (DSC) warning light comes on while driving. The following DSC fault codes for the wheel speed sensors are stored: 480712 and/or 480715 and/or 480718 and/or 48071B They cannot be cleared, even though the wheel speed sensors work correctly and no problem can be found with the wiring harness.
• 10239604Jun 1, 2023Steering. A groaning type noise is heard during the height adjustment.
• 10239602Jun 1, 2023Fuel system. A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system (NVLD natural vacuum leak detection). For this condition, the following fault is stored in the DME: 190302 - fuel tank ventilation and scavenging air system, micro-leak: leakage more than 0.5 mm.
• 10239595Jun 1, 2023Engine cooling. Radiator Grille Upper and Lower Active Air Flaps limited warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in-service date.
• 10238090May 1, 2023Electrical system. After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.
• 10238083May 1, 2023Electrical system. Due to a software error, the vehicle sporadically does not achieve sleep mode. As a result, the 12-volt battery becomes discharged and may cause a no-start condition.
• 10238081May 1, 2023Body and structure. Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
• 10236236Apr 1, 2023Electrical system. Issues with the various functions of the camera-based driver assistance systems (KAFAS system) can possibly lead to following customer complaints: KAFAS camera system deactivates itself, due to system restrictions that are not clear to the customer KAFAS camera system cannot be activated due to system restrictions that are not clear to the customer Road signs are sporadically not detected.
• 10235206Mar 1, 2023Equipment, Lane departure. Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates).
• 10235205Mar 1, 2023Equipment, Electrical system. The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration in the mobile communication network. Due to a production error, the telematics control units were delivered without an IMS configuration.
• 10235203Mar 1, 2023Equipment. Customer states there is no audio playback (telephony, navigation, radio) and system sounds (PDC, turn indicators, acoustic signals) may also have failed.
• 10235200Mar 1, 2023Exterior lighting. One or more of the LED daytime running lights are dim or discolored.
• 10235191Mar 1, 2023Electrical system. Due to a software error, the vehicle sporadically does not achieve sleep mode. As a result, the 12-volt battery becomes discharged and may cause a no-start condition.
• 10235181Mar 1, 2023Steering. A groaning type noise is heard during the height adjustment.
• 10230740Dec 1, 2022Equipment. Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates).
• 10230732Dec 1, 2022Steering. The saved steering column positions, vertical and horizontal, are not stored long term.
• 10230716Dec 1, 2022Equipment. With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered into a nationwide settlement with the plaintiffs in the following class action: Isley, et al. v. Bayerische Motoren Werke Aktiengesellschaft and BMW of North America, LLC.
• 10227575Oct 1, 2022Equipment. The customer complains that the radio stations change by themselves.
• 10227568Oct 1, 2022Air bags, Other or unknown, Seats, Back-over prevention (rear camera), Lane…. According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. The fault may or may not currently be present. Or 2. ACSM fault code "930A1C - Front passenger seat occupancy detection transmitting fault(moisture)" is stored. The fault may or may not…
• 10227558Oct 1, 2022Visibility (wipers, defrost, mirrors). After opening the vehicle with the radio remote control and changing the profile, the exterior mirror settings are lost.
• 10225128Sep 1, 2022Other or unknown. Due to a production error, the telematics control units were delivered without an IMS configuration.
• 10224185Aug 1, 2022Equipment. Component-Specific Limited Warranty Extension. For the eligible vehicles, BMW of North America, LLC (BMW NA) is extending the limited warranty for the vehicle's Leak Diagnosis Module with hose assembly (NVLD, shown) to: 15 years/150,000 miles as determined by the vehicle's original in-service date.
• 10218384Jun 1, 2022Equipment, Electrical system. Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may not start when placing the key against the steering column. Note: Opening, closing and starting via the BMW Digital Key or the Digital Key Card are not affected.
• 10218379Jun 1, 2022Visibility (wipers, defrost, mirrors). The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings. In some cases the air conditioning may have stopped blowing cold air altogether.
• 10215744May 1, 2022Suspension, Equipment. Component specific limited warranty extension. This component-specific limited warranty extension applies to defects in materials or workmanship. This coverage is subject to the same vehicle eligibility requirements, limitations and exclusions that apply to the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks.
• 10214990May 1, 2022Electrical system. The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain MY2013 vehicles with option 609 (as of 7/2012 production). This uses map North America NEXT. The Headunit High 2 (HU-H2), also called NBT-EVO, superseded the NBT HU and was introduced in 3/2014. This uses map North America EVO. The Headunit High 4 (HU-H4, also called MGU21) superseded the MGU starting with…
• 10214989May 1, 2022Engine cooling. Mist formation on the windshield inside surface may occur at departure or after MSA (automaticstart/stop). Acoustic abnormality in the area of the recirculated air flap (recirculation flap closing and opening severaltimes). The above may occur individually or in combination.
• 10214985May 1, 2022Equipment. When using the Key Reader to retrieve information from the customer's key, no current vehicle data is available.
• 10214984May 1, 2022Equipment. Check Control Message (CCM) displays "Vehicle key missing" after engine start.
• 10212795Apr 1, 2022Electrical system. Check Control message (CCM) displays "Vehicle key missing" after engine start.
• 10212793Apr 1, 2022Equipment. 48 V battery may become totally discharged, and possible replacement needed.
• 10211851Mar 1, 2022Engine cooling, Engine. This bulletin outlines the procedure for checking the engine timing chains for wear, and should be completed in conjunction with SI B11 06 14, "N63 Customer Care Package." The N63CCP and N63 Engine Check the Timing Chain are NOT mandatory Technical Campaigns or Recalls. They should be completed only based on parts availability, workshop capacity, and the customer's schedule.

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