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Service bulletins for the 2012 BMW 528i

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.

372 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
2702132018-12-03. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Knocking Noise from Driveline During Low-speed Turning. A cracking or knocking noise is heard from the driveline on sharp turns at low driving speeds (<15 mph). CAUSE Software calibration error in the transfer case control unit (Longitudinal Torque Module or LMV)
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.
8405132018-11-26. Service bulletin. ELECTRICAL SYSTEM. TCB: Emergency Call Is Erroneously Triggered. An emergency call is erroneously made with no input from the driver. The following fault codes are stored in the TCB: * 0xB7F325 - Emergency call loud speaker: break in circuit * 0xB7F319 - Emergency call button: short circuit * 0xB7F326 - Emergency call loud speaker: short circuit to earth * 0xB7F33E - Automatic emergency call triggered frequently CAUSE TCB control unit error
6603132018-11-26. Service bulletin. ELECTRICAL SYSTEM. Parking Assistant Inoperative After Programming. The parking assistant system does not function correctly. One or more of the following scenarios may occur: * Unable to activate the parking assistant via the iDrive * When activated, the vehicle does not locate a parking spot * Does not assist with parking the vehicle CAUSE Software error in ISTA/P 2.49.0 programming data
6138122018-11-26. Service bulletin. ELECTRICAL SYSTEM. "Service Action: Program Control Units (CAS). After programming/coding the vehicle with ISTA/P 2.48.1 or earlier, the Car Access System (CAS) was incorrectly coded. This causes the anti-theft alarm system panic button on the remote control to not function. In order to determine whether a specific vehicle has had this Service Action completed or is affected by this Service Action, first check the B-pillar label for code number 637. If code number 637 has been punched out, the campaign has already been performed. If code number 637 has not been punched out, it will be necessary to utilize the ""Service Menu"" of DCSnet (Dealer Communication System) or the Key Reader. Based on the response of the system, either proceed with the corrective action or take no further action. Important Note: A campaign can be reserved in ISPA Light as ""Pending"" prior to submission of a claim. If you find this campaign reserved, please verify the reason before attempting to perform this repair."
2702122018-11-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. "The warning lamps for DSC, ABS and brake warning are illuminated. There may also be a warning in the control display for ""Chassis Control System failure."" One or more of the following fault codes are stored: DSC: * D36D44 - Signal error longitudinal torque distribution (LMV) * 48097D - Transfer Case clutch position open F01, F02, F07, F10, F12 and F13 LMV: * 440108 - Control Unit internal error * 44010F - Control Unit internal error E70, E71 and E84 LMV: * 5219 - Control Unit: EEPROM Writing-reading-error * 522D - Control Unit: internal Error CAUSE Software calibration error in the LMV"
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.
6513132018-11-26. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. "Headunit-High: CID Is Blank and ""NO SIGNAL"" Is Displayed. Intermittently the Central Information Display (CID) is blank and ""NO SIGNAL"" is displayed on the CID. ??Fault Code B7F8C3 ""no response from CID (HW error: loss of CID communication)"" is stored in the HU-H Hardware error in the Headunit-High"
6506132018-11-26. Service bulletin. ELECTRICAL SYSTEM. CHAMP2: Integrated Cooling Fan Is Noisy Intermittently. Intermittently, the cooling fan integrated in the CHAMP2 head unit (Radio Professional) is noisy. * More noticeable after the ignition is turned off * The cooling fan runs for approx. 6 minutes (until CHAMP2 enters sleep mode), depending on the ambient temperature Settings of the fan characteristics: the fan keeps running after the ignition is turned off
6506132018-11-26. Service bulletin. ELECTRICAL SYSTEM. CHAMP2: Integrated Cooling Fan Is Noisy Intermittently. INFORMATION Do not replace parts and do not perform a repair attempt! Explain to the customer that this only happens at high ambient temperatures, which keep the fan running after the ignition is turned off. The fan stops running when the head unit enters sleep mode (after approx. 6 minutes). This Service Information will be updated as soon as a solution is available. A software solution is expected to be available with ISTA/P 2.49.0 in March 2013.
6401132018-11-26. Service bulletin. ELECTRICAL SYSTEM. IHKA Operating Panel Buttons Are Peeling.
6202132018-11-26. Service bulletin. ELECTRICAL SYSTEM. Instrument Cluster Only Displays Background Image and Gear Indicator. The display in the instrument cluster intermittently only shows the background image and the gear indicator. * No fault code is stored * All gauges function correctly Note: The issue is rectified after a sleep mode cycle (ignition off for approx. 16 minutes). Software error in the instrument cluster introduced with software I-level 12-03-500 or higher (ISTA/P 2.46.1 or higher)
6102112018-11-26. Service bulletin. ELECTRICAL SYSTEM. Advanced Onboard Battery Diagnostics. Starting with the introduction of the F10 (5 Series), an advanced intelligent battery sensor has been used. This now makes it possible for the vehicle to monitor the condition of the battery in order to determine if the battery needs to be recharged or replaced, along with the remaining capacity of the battery. The analysis and testing of the battery's SoC (Stateof Charge) and SoH (State of Health) is now performed using ISTA (Integrated Service Technical Application) diagnosis. A separate test using a battery tester is no longer needed.
84030142018-11-26. Service bulletin. ELECTRICAL SYSTEM. iPhone: Connection Failures with iOS 7. There are various connectivity failures with the iPhone using iOS 7. Some examples are listed below: z Call disconnection z Contact List incomplete z General connection failures Apple software iOS 7 and its variants
3405132018-11-26. Service bulletin. ELECTRICAL SYSTEM. Hill Descent Control Inoperative After Programming with ISTA/P 2.49.0 or 2.49.1. Hill Descent Control is inoperative after programming the vehicle with ISTA/P versions 2.49.0. or 2.49.1. Central Gateway Module software error.
6501132018-11-26. Service bulletin. ELECTRICAL SYSTEM; SEAT BELTS; ELECTRICAL SYSTEM:WIRING; EQUIPMENT; AIR BAGS. Airbag Warning Lamp Illuminated; Shorted Wire in Front Seat Harness. The airbag warning lamp (AWL) is illuminated. One or more of the following faults will be stored in the ACSM (Advanced Crash Safety Module) as displayed in ISTA: 930979: Side airbag, driver: short-circuit to negative 930955: CAK, driver: short-circuit to earth 930925: Seat belt tensioner, driver: short-circuit to earth 9309CA: Seat belt lock contact, front passenger: communication fault 93095B: Active head restraint, front passenger: short-circuit to negative 93095F: Active head restraint, front passenger: line coupled 93093A: Seat belt tensioner, front passenger: resistance too great 93095E: Active head restraint, front passenger: resistance too great 9309CA: Seat belt lock contact, front passenger: break in circuit 930982: Side airbag, front passenger: resistance too great CAUSE A short in the wiring harness in the driver's or/and passenger's seat
6520132018-11-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. Vehicle inTransport Mode Cannot Be Unlocked with Remote Control. When the vehicle is in transport mode, intermittently it cannot be unlocked via the remote control key. CAUSE When the vehicle is in transport mode, to reduce power consumption, the software is designed to disable the outside antenna receiver from waking up the vehicle.
6103142018-11-13. Service bulletin. ELECTRICAL SYSTEM. Check Control Messages Related to Battery Charge During Cold Ambient Temperatures. On cold days with an outside ambient temperature of less than 15F, customers may notice a check control message related to the battery that is displayed on the instrument cluster and the control information display. Under these conditions, the vehicle starts. Various power management faults can be stored: z 213901 - Power management: Reduction or shutdown of individual electrical consumer z 8040BD - Reset or deactivation of Terminal 30F z 8040B9 - De-activation of terminal 30B: Top start capability limit reached z 8020E8 - Reset or deactivation of terminal 30F z 800E89 - FRM: start capability limit reached with lights active during stationary mode z 93076B - Deactivation of terminal 30B: upper start capability limit reached z 93076A - Deactivation of terminal 15: upper start capability limit reached, but deactivation preventer active z 93076C - Deactivation of terminal 30B: upper start capability limit reached, but deactivation preventer or legal loads active z 930769 - Deactivation of terminal 15: upper start capability limit reached Note: When the outside temperatures drop below 46F, the charging system is switch to full charge. CAUSE z The check control message (ID 229) is caused by a heavily discharged battery. z The check control message is triggered when the current state of charge (SoC) of the battery approaches the minimum SoC that is required to start the vehicle (start capability limit). z In low outside ambient temperatures, the start capability limit of the vehicle is higher. Therefore it takes more energy from the battery to start a cold engine. z Without the early warning of the check control message, the current state of charge would drop below the start capability limit and the vehicle would not start. z The vehicle's intelligent power management system actively takes measures to increase the charge of the battery, such as increasing idle speed and reducing or shutting
6206132018-11-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. Condition Based Service Due Date Is Reset to 01/2000. The Condition Based Service (CBS) due date is reset to 01/2000 and cannot be updated for: * Oil Service * Check Vehicle Note: No fault code is stored Software error in the Instrument Cluster.
1205142018-11-13. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ENGINE. N20/N26: Engine Fails to Run on Repeated Cold Start. The engine turns over but does not start on a repeat cold-starting attempt. For example, on the first cold start the engine may start normally, but if shut off right away, the engine may then fail to start and remain running on the next repeated attempts. Unfavorable DME software in combination with the NGK SILZKBR8B8S spark plug
1204142018-11-13. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. MTurbocharger Coolant Pump: Fault Code 20A503. "Drive Faulty" message is displayed in the Check Control. Fault code 20A503 "Turbocharger coolant pump, self diagnosis: Signal implausible" is stored in the DME. Unfavorable DME software application
6103142018-11-13. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. Check Control Messages Related to Battery Charge During Cold Ambient Temperatures. On cold days with an outside ambient temperature of less than 15F, customers may notice a check control message related to the battery that is displayed on the instrument cluster and the control information display. Under these conditions, the vehicle starts. Various power management faults can be stored: * 213901 - Power management: Reduction or shutdown of individual electrical consumer * 8040BD - Reset or deactivation of Terminal 30F * 8040B9 - De-activation of terminal 30B: Top start capability limit reached * 8020E8 - Reset or deactivation of terminal 30F * 800E89 - FRM: start capability limit reached with lights active during stationary mode * 93076B - Deactivation of terminal 30B: upper start capability limit reached * 93076A - Deactivation of terminal 15: upper start capability limit reached, but deactivation preventer active * 93076C - Deactivation of terminal 30B: upper start capability limit reached, but deactivation preventer or legal loads active * 930769 - Deactivation of terminal 15: upper start capability limit reached Note: When the outside temperatures drop below 46F, the charging system is switch to full charge. CAUSE * The check control message (ID 229) is caused by a heavily discharged battery. * The check control message is triggered when the current state of charge (SoC) of the battery approaches the minimum SoC that is required to start the vehicle (start capability limit). * In low outside ambient temperatures, the start capability limit of the vehicle is higher. Therefore it takes more energy from the battery to start a cold engine. * Without the early warning of the check control message, the current state of charge would drop below the start capability limit and the vehicle would not start. * The vehicle's intelligent power management system actively takes measures to increase the charge of the battery, such as increasing idle speed and reducing or shutting
8405142018-11-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Service Action: Bluetooth Software (KISU Data) Update. This Service Action is being released to improve customer satisfaction as we strive to be number 1 in the JD Power Initial Quality Survey (IQS). This new KISU software improves the Bluetooth functionality in our vehicles, and it helps keep us up-to-date with technology innovation. Please implement the Bluetooth Software Update Service Action. This Service Action will be in effect until March 2015. Thank you for your continuous support. Improved KISU data (Customer Initiated Software Update) is now available for installation in these vehicles via the USB port. Improved functionality for COMBOX: z Detailed view of the text messages z Android device connection stability (linked contacts causing BT disconnection) Improved functionality for HU-H: z Reconnection strategy z 3rd Party App Metadata - Album art and song title Note: This Service Action is to be completed only at the dealer. You (dealers) will be receiving vehicles from the VDCs that will require this service action to be completed prior to customer delivery.
8404122018-11-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE. iPhone 6, 6 Plus, 5, 5S, 5C, 4S, 4, and 3GS with iOS 8.x Information. INFORMATION There is one major difference in functionality since iOS 8.0 was released. Scenario: z The customer leaves the vehicle and turns his or her phone off. z He or she turns the phone back on. z He or she enters the vehicle, but does not unlock the phone and start driving. Result: z The phone reconnects to the Bluetooth system (normal). z However, it does not transfer the contact list (not normal). z The contact list in the iDrive will be empty. z The call list in the Kombi will display only phone numbers, but no names. z The hands-free system works for accepting calls and conversing on calls started on the phone. Solution: z Prior to the customer entering the vehicle they must unlock the phone (passkey) With the release of Apple's new iPhone 6, 6 Plus and iOS 8.x software, there have been many questions regarding the new phone and software. The information in the attachment to this Service Information will help answer these questions. A printed copy can be given to the customer if needed. The attachment provides information on the differences between the new iPhone 6, 6 Plus and the previous versions, along with Apple software improvements in the following areas: 1. Visual comparison 2. Connectivity 3. Functionality Refer to the PDF file in the "Attachment" section of this bulletin for complete details. Information on the iPhone 6 is also available via the following: z www.bmwusa.com/bluetooth website NOTE: This SI will be updated as new information is received.

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