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Service bulletins for the 2018 BMW 440i

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.

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

By type

By component

Bulletins, newest first
B6409152018-12-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Whistling Noise Coming from the Center Vent - A/C is Off . A very high pitched whistling or beeping noise is heard coming from the center vents. The flow of refrigerant through the expansion valve at certain temperature differentials.
B6203162018-12-10. Service bulletin. ELECTRICAL SYSTEM. ?Clock gains or loses time. The time displayed in the KOMBI (instrument cluster) may gain or lose a few minutes each week. Internal KOMBI calculation error.
B6201162018-12-10. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:SOFTWARE. "Vehicles which have had the Instrument Cluster (KOMBI) replaced may display incorrect CBS (Condition Based Service) data after programming. AFFECTED VEHICLES Vehicles which require this Service Action to be completed will show it as ""Open"" when checked either in the ""Service Menu"" of DCSnet (Dealer Communication System) or with the Key Reader. Incorrect SW calibration loaded after KOMBI replacement."
B5147162018-12-10. Service bulletin. STRUCTURE. ?CREAKING NOISES FROM C-PILLAR. Flexing of body panels near weld point in the interior side wall.
B5146162018-12-10. Service bulletin. STRUCTURE:BODY:TAILGATE; LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH. During opening and closing of the tailgate, a creaking noise can be heard from the tailgate lock. Excess friction caused by dust/dirt entry into the tailgate lock and on the striker.
B5144162018-12-10. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. ?EXTERIOR MIRROR: CREAKING NOISES. Accumulation of dust in the joint gap seal.
B3413162018-12-10. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR; SERVICE BRAKES, AIR:DISC:ROTOR; SERVICE BRAKES, AIR:DISC; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC. ?WHEEL COVER PILOT PROGRAM. BMW is piloting/testing a measure that is designed to help prevent brake disc/rotor surface corrosion on new vehicles during transportation and storage.
B1606162018-12-10. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM. ?SERVICE ACTION: REPLACE LOW-PRESSURE ELECTRIC IN-TANK FUEL Please perform the procedure outlined in this Service Information on all affected vehicles before customer delivery or the next time the vehicle is in the shop.
B1110152018-12-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. ?Service Action: Replace the Thermostat. Please perform the procedure outlined in this Service Information on all affected vehicles before customer delivery. In the event the customer has already taken delivery of the vehicle, please perform the procedure the next time the vehicle is in the shop. This Service Information bulletin supersedes SI B11 10 15 dated January 2016.
B1110152018-12-10. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. The Service Engine Soon light is on with corresponding fault codes in the DME for the engine thermostat.
B5409072018-12-10. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM; EQUIPMENT. ?RETRACTABLE HARDTOP STATUS REQUEST SUPPLEMENT. INFORMATION Documents have been developed showing the known correct statuses for all hall sensors and micro switches used to operate the retractable hard top (RHT). This document is intended to act as a supplement to the diagnostic information available in ISTA. Comparing these statuses to the actual statuses of a vehicle with a functional problem may assist in narrowing down which sensor/switch is contributing to the functional problem. For E93, the status request may be found by connecting the car to ISTA and selecting: Control module functions/CTM Convertible top module/Diagnosis Requests ?Sensors/Switches For F33/F83, the statuses should be checked using the applicable test plan as instructed in attachment B54 09 07 F33 F83 RHT Status.pdf. For I15, the statuses should be checked using the applicable test plan as instructed in attachment B54 09 07 I15 Top Status.pd
B8406162018-12-03. Service bulletin. ELECTRICAL SYSTEM. ?BMW ONLINE NON-FUNCTIONAL: CHECK ICC-ID IN ACCOUNT. BMW Online/BMW ConnectedDrive not functional. Vehicle and service cockpit have different ICC-ID's (Integrated Circuit Card Identifier).
B8402142018-12-03. Service bulletin. ELECTRICAL SYSTEM. ?CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION. 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. This Service Information bulletin 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.
B1207182018-11-26. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. DME FC 1C0102 IS STORED WITH NO OTHER RELATED FAULTS. The following fault has been stored in the Digital Motor electronics (DME) fault memory with no other engine oil pressure faults stored: ??1C0102 - oil pressure control, plausibility, static: Pressure too low This fault will not cause a customer complaint or a Check Control Message (CCM). The fault is typically identified during unrelated diagnostics. Software error in the Digital Motor Electronics (DME) may cause the fault code to be erroneously stored. Only Integration level 17-11-5xx and higher are affected.
B6130172018-11-26. Service bulletin. ELECTRICAL SYSTEM. RAIN/LIGHT SENSOR (RLS): OIL LEAKAGE FROM GEL PAD. ??Oil leaking from the Rain/Light Sensor (RLS). Note: This oil serves as a separation medium between the RLS mounting gel pad and the windscreen. The oil ensures damage free disassembly in case of repair. CAUSE The oil that serves as the separation medium of the Rain/Light Sensor (RLS) gel pad and the windscreen leaks out. Expose the Rain/Light Sensor (RLS) and properly clean the area of all oily residue. Note: The separating oil usually leaks only once from the pad at the RLS. Due to the small oil quantity in the gel pad, additional oil leakage is not plausible. Leaking oil does not impair the function of the RLS.
B5124182018-11-26. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE. SERVICE ACTION. RE-WORK SEAL OF FUEL FILLER HOUSING. The fuel filler pipe seal is possibly not mounted and/or only poorly mounted over the wheel arch flange. If incorrectly installed, water may leak into the luggage compartment. Incorrect installation during production.
B6509152018-11-05. Service bulletin. EQUIPMENT. SI B65 09 15 November 2016 Audio, Navigation, Monitors, Alarms,SRS Technical Service NBT Head Unit High (HU-H) Resets Intermittently or Permanently. The Head Unit-High (HU-H) resets intermittently or permanently. 1. The display is inoperative and there is no audio output 2. Automatic system start-up after a couple of seconds Fault Code E1C440 set No Fault Codes set Software error in the Head Unit High (HU-H)
B6308162018-11-05. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM. TURN SIGNAL - INTERMITTENTLY FLASHES AT FASTER RATE. Turn signal, intermittently, flashes at faster rate or not at all. Software error in FEM (Front Electronics Module)
B6504142018-11-05. Service bulletin. AIR BAGS. "AIRBAG WARNING LIGHT: ACSM FC 930A60 OR 930A1C SEAT OCCUPANCY DETECTION. According to the customer, the airbag warning light was on, but it may not be on 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 currently be present. The front passenger seat occupancy mat consists of a seat occupancy mat with a capacitive sensor system. This means a front passenger is detected by measuring the resistance of the human body. The fault is set when moisture is detected on the mat itself."
B6136172018-11-05. Service bulletin. ELECTRICAL SYSTEM. "BATTERY DISCHARGE CCM (CHECK CONTROL MESSAGE) DISPLAYED: COMFORT ACCESS DISABLED. One or more of the following conditions are present: * CCM ""Battery. Discharge in standstill."", or similar, is displayed. * Comfort Access and contactless tailgate opening are not working. * Vehicle can still be unlocked with radio remote control (ID transmitter). Fault conditions are cleared upon engine restart. FEM (Front Electronics Module) software error Unauthorized (radio remote control out of range) access to vehicle has been attempted at least seven times with Comfort Access or Smart Opener (contactless tailgate opening) when the vehicle was locked. As a result of these unauthorized access attempts, the following conditions were set: * CCM ""Battery. Discharge in standstill."", or similar, is displayed * Terminal 30F (switched battery terminal when fault occurs) was deactivated, preventing Comfort Access and contactless tailgate opening."
B6103152018-11-05. Service bulletin. ELECTRICAL SYSTEM. VARIOUS CCM (CHECK CONTROL MESSAGES) CAUSED BY SHORTED K-CAN. The customer states that one or more of the following CCM are displayed: * 627 - Steering behavior: Drive moderately * 070 - Steering: Drive moderately * 765 - Rear-end collision restricted * 850 - Pedestrian warning restricted * 236 - Driving stabilization: Drive moderately * 299 - SOS call system failure * 042 - Brake system: Drive moderately After performing a vehicle test, one or more of the following fault codes are stored: * ACSM (Advanced Safety Crash Module) - C9549A Message faulty (seat memory), ACSM receiver, driver's seat module transmitter * FEM (Front Electronics Module) - D91DE0 No message, receiver FEM, transmitter TMSL * FEM - D91EE5 No message, receiver FEM, passenger seat module transmitter * ACSM - C9540C Message missing, receiver ACSM, transmitter FEM * TMSL (Front Light Electronics Left) - D95402 Message missing, receiver TMSL, transmitter FEM * KOMBI - E11454 No message, receiver KOMBI, transmitter REM * FEM - D91DE6 No message, receiver FEM, transmitter TMSL * TMSR (Front Light Electronics Right) - D99401 Message missing, receiver TMSR, transmitter FEM * TMSR - D99402 Message missing, receiver TMSR, transmitter FEM * FEM - 8041BA AHL system faulty * FEM - D916C3 No message, receiver FEM, transmitter TCB * ZBE (Controller) - E2D403 No message, receiver CON, transmitter FEM-ZGM * TRSVC (Control unit for rear view camera and Side View) - CA9428 Message incorrect, receiver TRSVC, transmitter PDC-REM * TMSL - D95401 Message missing, receiver TMSR, transmitter FEM * HU-H (Headunit High) - S0397 MOST configuration was not stored * TCB (Telematics Control Box) - E1445F KCAN2 or KCAN4: Line fault/electrical fault * FEM - 8041B6 LWR faulty * REM (Rear Electronics Module) - E58468 Body CAN2; communication fault * TRSVC- CA9427 Message incorrect, receiver all around vision camera, transmitter PDC/REM FEM - D91CEC Message missing, receiver FEM, transmitter REM * Shorted K-CAN wiring under drive
B5146162018-11-05. Service bulletin. LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH. CREAKING NOISE FROM TAILGATE LOCK.. During opening and closing of the tailgate, a creaking noise can be heard from the tailgate lock. Excess friction caused by dust/dirt entry into the tailgate lock and on the striker.
B8402142018-11-05. Service bulletin. EQUIPMENT. ConnectedDrive/BMW Assist System Diagnosis Information This Service Information bulletin replaces SI B84 02 14 dated July 2014 What's New: Model - Removed models which no longer support BMW Assist functionality and added new models. Procedure - Add step requesting print out of ConnectedDrive Service Cockpit page Information - Add SI for ConnectedDrive Service Cockpit; updated the hyperlinks and email address for CD support team; deleted scenario for old CDMA unit which are no longer supported. 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. This Service Information bulletin 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.
B6406132018-11-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. A/C Cooling: Intermittent Reduction of Air Flow What is new The date in repair procedure and warranty section has been changed for vehicles produced to September 30, 2013 and from October 1, 2013.. Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. INFORMATION Possibility of reproducing this situation is improved by the following conditions: High outside ambient temperature High humidity Note: It is very difficult to duplicate this issue. The fault may be reproduced under the following conditions: Air-conditioning system switched on Driving Experience switch NOT set to Eco Pro Slower fan speeds Temperature setting below 68F (20C) Trip duration at least 30 minutes Outside temperature above 68F (20C) NOTE: After parking the vehicle or switching off the air-conditioning system for at least 20 minutes, the symptom disappears (ice melts off evaporator and puddles under the car from the A/C drains). Evaporator starts to freeze up due to the position of the evaporator temperature sensor.
B6210172018-11-05. Service bulletin. ELECTRICAL SYSTEM. ERRONEOUS SERVICE INCLUSIVE CBS DISPLAY. After pre-delivery check or after instrument cluster exchange, BMW Service Inclusive is displayed although the vehicle does not feature the optional Service Inclusive coverage. Instrument Cluster display error

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