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Service bulletins for the 2014 BMW Z4

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.

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

By type

By component

By trouble code

Bulletins, newest first
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
2801142018-11-26. Service bulletin. POWER TRAIN. DCT Transmission: Oil Leakage Diagnosis. INFORMATION Incorrect diagnosis of DCT (Double-clutch Transmission) oil leaks may lead to unnecessary part replacements and repeat customer repair visits. When diagnosing complaints related to DCT fluid leaks, please use the attached diagnostic procedure. WARRANTY INFORMATION Not applicable. ATTACHMENTS View PDF attachment B280114_DCT_Oil_Leak_Diagnosis. [ Copyright (c)2014 BMW of North America, Inc. ] https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/16672.2.B28011... 12/24/2014
1305142018-11-26. Service bulletin. ENGINE. . INFORMATION To properly diagnose the customer's complaint, the applicable test plan for the misfire faults stored in the DME must be performed to avoid repeat repairs. If a misfire fault is not stored in the DME memory and an engine related drivability complaint is received, follow the path below to manually start the misfire test plan (AT1214_TVD4_MISFIRE_20): 1. Perform a vehicle test. 2. Select "Function Structure." 3. Select "01 Engine." 4. Select "Engine electronics MEVD." 5. Select "Misfire detection." 6. Follow the steps in the test plan and select "Basic check (start)" first. Do not select "Additional check" at this time. 7. If the result of the "Basic check" indentifies a fuel system component failure, replace the identified component. If the result of the "Basic check" test plan was inconclusive, go to step 7. After the component replacement, perform the "Basic check" portion of the test plan again to verify if the diagnosis was correct and the vehicle condition has been rectified.
1110122018-11-26. Service bulletin. ENGINE. ?N20 Engine: Repeated Juddering or Surging While Accelerating. The vehicle judders or surges repeatedly while accelerating in hot ambient temperatures between 3,000 RPM and 5,000 RPM. The Service Engine Soon lamp is not illuminated, and no fault codes are stored in the vehicle memory related to this complaint. CAUSE The EPDW (electropneumatic pressure convertor) for the turbocharger wastegate valve is binding internally.
1120142018-11-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). Delivery Stop: Crankcase Failure. A Delivery Stop has been issued on certain 2015 model year vehicles with N20/N26 engines produced from September 4, 2014 through October 21, 2014. These vehicles may have a crankcase failure. Approximately 145 vehicles are affected.
5404142018-11-13. Service bulletin. ELECTRICAL SYSTEM. Service Action: Wiring Harness Sensor Rear Module. The wiring harness for the convertible top rear module sensor may be positioned incorrectly, which can cause damage to the wiring harness. Incorrect positioning of the convertible top rear module sensor connector AFFECTED VEHICLES This Service Action involves E89 (Z4) vehicles produced from March 26, 2014 to April 1, 2014. First check if a Service Action label with a code number 686 is already attached to the B-pillar. If a code number 686 has been punched out, the Campaign has already been performed and no further action is necessary. 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.
6505142018-11-13. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Traffic Information Is Inoperative. The traffic information is intermittently or permanently inoperative. * Traffic flow is not displayed on the navigation map. * The traffic list is empty. 1. The Offboard Availability (backend) system is unavailable and is not sending traffic information. 2. The traffic information feature is not activated correctly.
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
5404142018-11-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Delivery Stop: Wiring Harness Sensor Rear Module. A Delivery Stop has been issued on certain 2014 model year E89 vehicles produced from March 26, 2014 through April 01, 2014. These vehicles may be faulty with the routing of the micro switch connector for the retractable hard top. Affected vehicles in dealer inventory must not be retailed or delivered until this issue is corrected. Vehicles at ports of entry will be repaired prior to dealer delivery. This bulletin will be updated with instructions and warranty information when parts become available. Please contact your field representatives if you have any questions.
1305142018-11-13. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. N20 and N26 Injector Replacement. INFORMATION When a defective high-pressure fuel injector is identified with an index "02" designation, as shown in the illustration below, all 4 injectors must be replaced at the same time. This bulletin only applies to index "02" injectors. Index "01" and index "03" or higher are not affected. No immediate repair is required unless the BMW vehicle is currently experiencing this problem.
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.
6522142018-11-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Automated Activation of Navigation System During PDI/QC1. INFORMATION Important: The INITIAL NAV enabling code no longer needs to be pre-ordered through the Parts department! When the vehicle is connected to the diagnostic system ISTA to perform PDI/QC1, the step to activate the navigation system (part of Delete Transport Mode) will automatically request the INITIAL NAV enabling code (VIN-specific) without pre-ordering the enabling code. This enabling code will be automatically delivered through ISTA and it then activates the navigation system. Note: This VIN-specific NAV enabling code is then also automatically stored in the Repair Kit in the Aftersales Assistance Portal (ASAP). The automated INITIAL NAV enabling code request and activation of the navigation system will take no longer than 1 minute. After finishing "Delete Transport Mode," the navigation system in the vehicle will be active without entering the 20-digit INITIAL NAV enabling code manually or in ISTA. If the navigation system is not active and asking for the enabling code, turn off the ignition and wait for the head unit to enter sleep mode (approx. 3 minutes). After that, turn on the ignition again. The head unit will start up and the navigation system is activated. If the INITIAL NAV enabling code for first-time activation of the navigation system is not requested or delivered automatically, it still can be ordered manually through the Parts department and activated in the vehicle through the iDrive controller, by entering the 20-digit enabling code manually.
8402142018-11-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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.
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 15°F, 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 46°F, 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 shut
8403142018-11-13. 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: * Call disconnection * Contact List incomplete * General connection failures CAUSE Apple software iOS 7 and its variants.
6117142018-11-13. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. "Intelligent Battery Sensor Diagnosis Hints. The vehicle enters the workshop with one or more of the following complaints: * Check Control Message related to battery discharge * No-start condition * Consumer power reduction (reduced blower speed, heated seats operation, etc.) * The following fault codes may be stored in the DME a. 2E8B - Intelligent battery sensor, signal b. 2E8C - Intelligent battery sensor, function c. 2E8D - Intelligent battery sensor, signal transmission d. 2E8E - Intelligent battery sensor, communication CAUSE A faulty battery or IBS sensor (not both) The power management system and IBS in the vehicle cannot determine if the battery needs to be replaced. This is normal operation for all E-Series vehicles because they do not have the Advanced IBS sensor that the F-Series vehicles do. An external battery tester (Midtronics EXP-1000) must be used to determine if the battery needs to be replaced. Energy Diagnosis will not prompt for a battery replacement unless the battery is ""aged."" When energy diagnosis identifies the battery as ""aged,"" it means the amount of energy discharge over the course of the life of the battery has reached its maximum (worn out). In most cases, energy diagnosis states that the battery is OK. This is typically an indication of the current State of Charge (SoC), not the State of Health (SoH). The SoC is defined as the current amount of energy left in the battery (displayed as a percentage). The SoH is defined as an evaluation of the condition of the battery over a period of time (displayed as a percentage). For more information about batteries, refer to Training Manual ST051, ""07 Battery Basics."""
8401142018-11-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. ConnectedDrive/BMW Assist System Information and Availability. ConnectedDrive features are partially or completely inoperative. Examples of some of these features are listed below: * BMW Assist Inoperative ? SOS call ? Roadside Assistance call * My BMW Remote App * BMW Online - Google local search * Concierge CAUSE The Electronic Subscriber Agreement (ESA) is inactive. * No active contract for ConnectedDrive features Offboard Availabilty (Backend) system issues * The external network was/is inoperative. * No data is sent to the vehicle.
6503142018-11-13. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. RAD2+ Radio: Background Noise with Audio Turned Off. Background noise (buzzing, crackling, static) can be heard: * At low audio volume * When the radio is turned off * When the ignition is turned off NOTE: Background noise stops when the radio enters sleep mode. IMPORTANT: Background noise is more noticeable on vehicles produced before 09/2009 in case a RAD2+ replacement radio was installed previously. RAD2+ radio concept, manufactured from July 2009 to February 2014
6530092018-11-13. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Enabling Code FSC/SWT - Enabling the Navigation System Map at QC1. The navigation system is inoperative unless the map is enabled during the QC1 Pre-Delivery Check. INFORMATION New vehicles come equipped with a navigation road map that must be enabled via an enable code (FSC). This process is part of the QC1 Pre-Delivery Check performed with the ISID (ISTA Diagnosis). IMPORTANT: There is no programming involved!
6525132018-11-13. Service bulletin. ELECTRICAL SYSTEM. "ConnectedDrive/BMW ASSIST Features Are Inoperative. ConnectedDrive features are partially or completely inoperative. * No traffic information (RTTI / ARTTI) * BMW ASSIST ""My Info"" service doesn't work. CAUSE The Electronic Subscriber Agreement (ESA) is inactive. * No active contract for ConnectedDrive features Offboard Availability (Backend) system issues * The external network was/is inoperative. * No data is sent to the vehicle."
6409132018-11-13. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY; ENGINE AND ENGINE COOLING. Service Action: Program IHKA Control Unit. The control panel for the air conditioning (IHKA) may fail intermittently. CAUSE IHKA software error
6304142018-11-13. Service bulletin. EXTERIOR LIGHTING. Delay in Automatic Driving Light Switching On/Off. When driving out of a tunnel or exiting underground parking, the automatic driving light remains switched on for two minutes, even in daylight. The automatic driving light switching on/off can be shorter or longer when it starts to get dark. CAUSE The software for the switch-on threshold is lowered to protect the xenon light source.
1603132018-11-13. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY; ENGINE. N52K, N54 and N20 Engine - Noise from Fuel Tank. The customer complains of a noise from the underside rear portion of the vehicle. When diagnosed the noise is coming from the fuel tank. CAUSE A manufacturing defect inside the electric fuel delivery unit (in-tank fuel pump) pressure limiting valve will result in a noise while driving. This defect will not lead to fuel pump failure or loss of power.
1224132018-11-13. Service bulletin. ENGINE AND ENGINE COOLING. "?SI B12 24 13 March 2014 Engine Electrical SystemsTechnical Service This Service Information bulletin supersedes SI B12 24 13 dated January 2014. PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON ALL AFFECTED VEHICLES BEFORE CUSTOMER DELIVERY OR THE NEXT TIME THEY ARE IN THE SHOP FOR MAINTENANCE OR REPAIRS. BMW centers must ensure Recalls are completed after having been notified by BMW of North America, LLC (BMWNA) that a safety-related defect or noncompliance exists in any motor vehicle or item of replacement equipment in the center's possession at the time of notification. In BMW NA's case, this notification would typically be made by the issuance of a Recall notification in the form of a Service Information bulletin (SIB) or transmission of a Dealer Communication System (DCS) Recall message. Under the National Traffic and Motor Vehicle Safety Act of 1966, as amended, if a Recall Campaign is announced by BMW NA, centers must ensure that all Recalls on new vehicles and new items of replacement equipment are completed BEFORE delivery to the consumer. This means that centers may not legally deliver new motor vehicles or new items of replacement equipment to consumers with an open Recall. The Safety Act also prohibits centers from selling or leasing the motor vehicle or item of replacement equipment, unless and until the open Recall has been completed BEFORE delivery. This also pertains to vehicles in the Certified Pre-Owned program, and to items of replacement equipment. Finally, BMW centers should not sell or use parts that have been recalled by BMW NA. Please follow the specific instructions provided by BMW NA on the return or disposition of the parts. designates changes to this revision SUBJECT Voluntary Emissions Recall Campaign 13E-A03: Program Control Units (OBD). Due to an error in the DME (Digital Motor Electronics) software, the required oxygen sensor onboard diagnostics (OBD) is not functioning. As a result, the ""Readiness bit"" confirmin

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