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Service bulletins for the 2013 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.

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

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

Bulletins, newest first
B6525162018-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. USB CABLE: BATTERY DISCHARGE/AUDIO FAILURE/RADIO RECEPTION. No sound from the radio, telephone, gong signal and or PDC. Poor radio reception and failure of the telematics systems. Possible Check Control system message: o Battery discharge when engine off. o Caution, no acoustic warning signals. Non BMW approved (third-party supplier) USB cable plugged into the USB port.
B6523162018-11-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. ?AUDIO VOLUME NOT RESTORED AFTER MSA STOP, ENTRY HEAD UNIT. Volume of audio system (when set to near maximum) is reduced when Auto Start-Stop (MSA) stop occurs and is not restored upon automatic engine restart. This is normal system behavior - serves to protect the head unit, battery drain and avoidance of incremental leaps in the loudness. The loudness is reduced to 2/3 of maximum and is not restored. Note: Air conditioning output is also reduced upon MSA stop and is not restored for similar reasons.
B6520162018-11-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. CID Split Screen Always Changes Back to Compass Display. This Service Information bulletin Replaces SI B65 20 16 dated June 2016. After starting the vehicle, the Control Display (CID) right side (split screen) display does not stay on the last selection made by the driver. Within 30 seconds of starting the right side of the display changes by itself to the compass view. Software error (Head Unit NBT-EVO ID5) was introduced with ISTA/P V3.58.0 (16-03-502 I Level).
B6127162018-11-05. Service bulletin. ELECTRICAL SYSTEM. SERVICE ACTION: PROGRAMMING CONTROL UNITS (REAR WINDOW HEATING). Under unfavorable conditions, activation of the rear window heating may overload its fuse. Software allows unfavorable activation.
B8408162018-11-05. Service bulletin. ELECTRICAL SYSTEM. The underlying 2G technology for the GSM (Global System Mobile communication) COMBOX will no longer be supported by the cellular network providers after December 31, 2016. This COMBOX and the BMW Assist services that use its functionality will therefore no longer function after that date. The BMW Assist functionalities that are affected includes the following: SOS/E-Call including Automatic crash notification Concierge Service Remote Service Teleservices The vehicle's exisiting Bluetooth(r) wireless functionality is NOT affected.
B8403162018-11-05. Service bulletin. ELECTRICAL SYSTEM. SERVICE ACTION: GSM COMBOX DEACTIVATION / DISCONTINUATION WITH 4 YEAR ASSIST SERVICE. What's New: ? Model: Option code removed to prevent confusion about affected vehicles ? Situation: Information added about Bluetooth functionality that is not affect by this Service Action ? Correction: Information added about lease returns, loaner, CPO and used vehicles that are not eligible for the 3 customer options ? Information: Removed scenario regarding new/unsold Z4s & X1s ? Procedure: Added info about COMBOX retrofit that it does not affect Bluetooth functionality ? Warranty: Added info that the correct flat rate labor operation that corresponds to the option the customer selected is claimed and removed information about Z4s & X1s . The underlying 2G technology for the GSM (Global System Mobile communication) COMBOX will no longer be supported by the cellular network providers after December 31, 2016. This COMBOX and the BMW Assist services that use its functionality will therefore no longer function after that date. The BMW Assist functionalities that are affected includes the following: SOS/E-Call including Automatic crash notification Concierge Service Remote Service Teleservices The vehicle's exisiting Bluetooth(r) wireless functionality is NOT affected.
B6506162018-11-05. Service bulletin. ELECTRICAL SYSTEM. ?NBT HEAD UNIT ABORTS IMPORT OF CD Whats New: ? G12 (7 Series) removed ? I01 (i3) removed ? Warranty Section updated for removal of G12 and I01 . While importing a CD to the internal music collection of an NBT head unit the process aborts. You will see 'import error' on the radio display when this occurs. NBT Head Unit software
B6203172018-11-05. Service bulletin. ELECTRICAL SYSTEM. "?SERVICE ACTION: INSTRUMENT CLUSTER DISPLAY IN KM/H . When the instrument cluster's digital speedometer has been set to display metric speed and distance values, there is no display of the miles per hour. US regulations specify that even with the instruments set to display metric values, a ""Miles per hour"" display must also be present for immediate visual reference. To confirm language settings use the iDrive controller: Menu, Vehicle Settings, Language/Units, then - Distance - Dig (digital) Speedometer Instrument Cluster (KOMBI) software error."
B8408182018-08-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. HEAD UNIT HIGH 2 RESET WHILE BLUETOOTH IS CONNECTED: The following event may cause an unexpected reset of the Head Unit High 2 (NBT EVO) when:
B8406162018-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. BMW ONLINE NON-FUNCTIONAL: CHECK ICC-ID IN ACCOUNT: BMW Online/BMW ConnectedDrive not functional.
B6605182018-05-21. Service bulletin. ELECTRICAL SYSTEM. COMFORT ACCESS SPORADICALLY INACTIVE VIA DOOR HANDLE: Sporadically, CA (Comfort Access) locking or unlocking of the vehicle does not work via the door handles.
B6212152018-05-21. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. INSTRUMENT CLUSTER OUTSIDE TEMPERATURE DISPLAY IMPLAUSIBLE: In the Instrument Cluster (Kombi) display you may observe an implausible outside temperature reading.
B8402142018-05-14. Service bulletin. ELECTRICAL SYSTEM. ConnectedDrive/BMW Assist System Diagnosis Information
B6130142018-05-07. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. BMW Maintenance Program: 12-Volt Battery Replacement Measure: This bulletin outlines a customer satisfaction measure that has been designed exclusively for the BMW vehicles listed above.

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