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: Engine are shown. Show all

Bulletins, newest first
B1213182019-09-23. Service bulletin. ENGINE. DME FC 21A02D - COMBUSTION CONTROL: VALVE LIFT AT IDLE This Service Information Bulletin (Revision #2) replaces SI B12 13 18 dated May 2018. Correction software level updated Procedure text changes made due to an ISTA/D test plan name change Adjusted text in the Warranty section for use with AIR and the ISTA/D test plan name change. The vehicle will run rough or hesitate when accelerating from a stationary position.
B1101192019-07-22. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. ENGINE VIBRATIONS OR NOISE This Service Information bulletin replaces SI B11 01 19 dated February 2019.
B3408192019-06-24. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE. VARIOUS CHECK CONTROL MESSAGES FOR DRIVER ASSISTANCE SYSTEMS. The following messages are displayed in the Check Control (CC) display: Continued driving possible. Driving stabilization. Driving stabilization restricted driving stabilization. Drive with caution to the nearest authorized BMW Service workshop and/or Collision warning/you can continue driving. Collision warning fully or partially failed. No warning is given if the distance from the vehicle in front is too short.
B1216192019-06-24. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. ERRONEOUS ELECTRIC FAN FUNCTION FAULT STORED IN THE DME. The following faults may be erroneously stored in the Digital Motor Electronics (DME): And: There is no customer-facing vehicle symptom(s) or related check control message displayed. A software error may cause these faults to be erroneously stored in the Digital Motor Electronics (DME).
B1107172019-06-24. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 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). In the situation being described the fault is primarily stored during the cold winter months along with the use of winter fuel.
B6104192019-05-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019.
B1701182019-05-20. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT; STEERING. HEATER HOSE IS CONTACTING THE STEERING SHAFT This Service Information bulletin replaces SI B17 01 18 dated April 2018.
B1701182019-05-20. 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.
B1101192019-03-18. 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.
B1115162019-02-25. 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.
B1107172019-02-25. 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.
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.
B1220182018-10-09. Service bulletin. ENGINE. SERVICE ACTION: PROGRAM CONTROL UNITS (DME): The check engine light is illuminated and the vehicle may run roughly
B1701182018-05-21. Service bulletin. ENGINE AND ENGINE COOLING. HEATER HOSE IS CONTACTING THE STEERING SHAFT: The customer may complain of a coolant leak from the front of the vehicle, or a noise when turning the steering wheel.
B1207182018-05-21. Service bulletin. ENGINE. 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.

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