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Service bulletins for the 2020 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.

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

By type

By component

Bulletins, newest first
B6512202020-08-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. BMW CONNECTEDDRIVE APPS ARE NO LONGER AVAILABLE AFTER PROGRAMMING: After programming vehicle with "20-03" software, BMW ConnecedDrive apps are no longer available in the head unit. Software in the Head Unit High (HU-H3).
B6507092020-08-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. NAVIGATION SYSTEM - REPORTING MISSING OR INCORRECT ROADMAP DATA: Do not replace parts and do not program the vehicle. Roads can change by up to 15% every year. To ensure the best navigation experience, we do everything in our power to create the best maps. Your reports help us to detect changes in your area and keep future versions of our maps as accurate as possible. Therefore, a road map error or missing data must be reported directly to the map supplier.
B6201192020-08-31. Service bulletin. EQUIPMENT:ELECTRICAL. INSTRUMENT CLUSTER AND ONBOARD COMPUTER INTERMITTENTLY INOPERATIVE: The audio source, radio station, or music track cannot be changed using the MFL. Normal functionality may possibly return after a sleep cycle or a battery reset. This affects vehicles with: Integration level S18A-18-11-5xx Live Cockpit Professional (option code 6U3) including the instrument cluster High 4.1. While the Kombi is not working properly the rest of the system is working properly. The customer can still use the Central Information Display (CID) for items such as entertainment settings, Driver Experience settings, etc, utilizing the I drive controller. The telephone functions are not affected. Unfavorable software at system start-up.
B3405172020-08-31. Service bulletin. SERVICE BRAKES, HYDRAULIC; WHEELS. TICKING NOISE WHILE CORNERING WITHOUT THE BRAKES APPLIED: Ticking noise coming from front wheel while cornering without brakes applied, noticeable at low speeds. The vehicle must be moving.
B3403202020-07-27. Service bulletin. ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC. PREMATURE WEAR OF THE REAR AXLE BRAKE PADS WITH STANDARD BRAKES: The CBS data and Check Control (CC) message shows the rear axle brake pads are worn, and the vehicle has less than 15,500 miles. Increased residual braking forces in the rear axle brake calipers caused by production-related deviations on the surface of the piston ring seal.
B6611202020-06-15. Service bulletin. ELECTRICAL SYSTEM. REVERSING ASSISTANT LIMITATIONS: The Reversing Assistant function is not operating to customer expectations. Some possible customer concerns are: Vehicle does not avoid objects in its path tires or wheels contact the curb reversing Assistant only works for a short distance.
B6609202020-06-15. Service bulletin. ELECTRICAL SYSTEM. SURROUND VIEW WRONG VEHICLE DISPLAYED AFTER PROGRAMMING: After programming the wrong vehicle model is displayed in the Central Information Display (CID) when the Surround View is activated.
B5113182020-06-15. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM; POWER TRAIN. LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE: Any or all of these conditions may be present: A. The exterior rearview mirror glass is discolored or cracked B. The power windows and folding mirrors may not operate C. One or more of the following LIN bus faults are stored in the BDC (Body Domain Controller): D90C03 LIN bus master B: short circuit - BDC D90C04 LIN bus master B: No communication - BDC D90C05 LIN bus master B: Communication failed - BDC D90D07 Operating facility switch block (LIN): Missing LIN slave D90D0A exterior rearview mirror left (LIN bus): Absent LIN slave - BDC D90D0D exterior rearview mirror right (LIN bus): Absent LIN slave - BDC 804246 exterior rearview mirror left (LIN bus): Heating or electrochrome: faulty - BDC 804256 exterior rearview mirror right (LIN bus): Heating or electrochrome: faulty - BDC 804265 exterior mirror left or right: Excess temperature - BDC 804260 exterior mirror left or right: Overvoltage - BDC 804261 exterior mirror left or right: Undervoltage - BDC Faulty exterior rearview mirror electronics have created a short on the LIN bus damaging the mirror glass and causing functional errors in power window and exterior mirror operation.
B1101202020-06-15. Service bulletin. ENGINE. B58C AND B58M ENGINES ENGINE OIL FILTER INSERT IS DIFFICULT TO REMOVE - REMOVAL: On rare occasions during an engine oil service the BMW Original (Genuine) engine oil filter insert is either difficult to remove or breaks apart in the oil filter housing. The engine oil filter is broken. The paper is torn and the lower plastic section is stuck in the engine oil filter housing.
B8402202020-05-18. Service bulletin. ELECTRICAL SYSTEM. REMOTE 3D VIEW NOT AVAILABLE: Remote 3D View cannot be launched In the BMW ConnectedDrive App. Software error in the Advanced Telematics Module 2 (ATM2).
B8401202020-05-18. Service bulletin. ELECTRICAL SYSTEM. BMW CONNECTEDDRIVE SERVICES ARE NOT AVAILABLE: The BMW ConnectedDrive services are not available for an extended period. This may include: Calls in the BMW Assistance app (Concierge Service) Vehicle data and status in the BMW ConnectedDrive app Remote services Remote 3D View Real Time Traffic Information (RTTI) Weather News Software error in Advanced Telematics Module 2 (ATM2).
B6610202020-05-18. Service bulletin. LANE DEPARTURE: SENSING SYSTEM: CAMERA; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. KAFAS04 (CAMERA-BASED DRIVER ASSISTANCE SYSTEMS) LIMITATIONS: Various functions of the KAFAS (without radar installed) are not operating up to customer expectations.
B6113202020-05-18. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. SERVICE ACTION - CHECKING THE DUAL STORAGE SYSTEM AND REPLACE IF NECESSARY: In the event of an accident the two-battery Dual Storage System (DSS) is disconnected from the electrical system via an internal relay. In some cases the relay is stuck closed and a fault is set. In these circumstances: A crash shutdown of the DSS does not occur The power distribution box is supplied with power until the DSS is fully discharged
B6111202020-05-18. Service bulletin. STRUCTURE; LATCHES/LOCKS/LINKAGES. WHEN LOCKING VEHICLE DOORS ARE LOCKED BUT VEHICLE IS NOT SECURED: The customer complains that when locking the vehicle from the outside using the remote control: The doors lock The alarm system is not activated The side mirrors (when the function is activated) do not fold in CAUSE Due to a software error on the Body Domain Controller (BDC) it identified the remote control as being inside even though the remote control is actually located outside the vehicle. This caused the doors to be locked without securing the vehicle.
B8402142020-04-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: This Service Information Bulletin (Revision 7) replaces SI B84 02 14 dated May 2019. 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. 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.
B6631192020-04-27. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR. REARVIEW CAMERA: SPORADICALLY NO IMAGE IS DISPLAYED: This Service Information Bulletin (Revision 2) replaces SI B66 31 19 dated February 2020. When reverse gear is selected or the rear view camera is activated sporadically no image is displayed on the Central Information Display (CID). If the ignition is cycled off and back on the function is restored. Software error between the head unit and the rear-view camera.
B6619192020-04-27. Service bulletin. EQUIPMENT:ELECTRICAL; LATCHES/LOCKS/LINKAGES. COMFORT ACCESS AND COMFORT GO NOT POSSIBLE: This Service Information Bulletin (Revision 1) replaces SI B66 19 19 dated May 2019. Vehicle cannot be unlocked/locked or started via Comfort Access. Remote control functionality is restored by pressing any of the key buttons or by removing and reinstalling the remote control key battery. The Display Key Digital Key and the Digital Key Card are not affected. Electrostatic discharge puts the remote control key into a deep sleep. Various situations can lead to an electrostatic charge which is often not recognized by the customer. For example walking over carpet wearing shoes that have a hard rubber sole positive and negative charges are exchanged. The sole accumulates a negative charge and an electrostatic charge develops before touching the remote control key.
B6603202020-04-27. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. DIAGNOSTIC HINT: DRIVING ASSISTANCE SUPPORT REDUCED CHECK CONTROL MESSAGE DISP: Driving Assistance support reduced Check Control Message (CCM) is displayed sporadically. All or some of the system functions maybe inoperative.
B6522142020-04-20. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). AUTOMATED ACTIVATION OF NAVIGATION SYSTEM DURING PDI/QC1: This Service Information Bulletin (Revision 2) replaces SI B65 22 14 dated October 2015. 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.
B6508202020-04-20. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. DISPLAYS SPORADICALLY REACT VERY SLOWLY WHEN SCROLLING IN THE AUDIO MENU: Sporadically the reaction time of the display in the instrument cluster the head-up display or in the CID (Central Information Display) is very long. This can occur when browsing/scrolling through lists in the audio menu switching radio stations or albums. Software in the Head Unit High (HU-H3).
B6108202020-04-20. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE; BACK OVER PREVENTION. ALARM ACTIVATES WHEN OPENING THE TRUNK: When the trunk is opened using the trunk lid mounted switch the vehicle alarm will intermittently activate. Opening the trunk using the remote control button does not cause this issue to happen. CAUSE Anti-theft alarm system software.
B5110202020-04-20. Service bulletin. BACK OVER PREVENTION; VISIBILITY. INTERFERENCE NOISE WHEN FOLDING THE OUTSIDE MIRRORS: Interference noises (creaking groaning clicking) may be present when folding the side view mirrors in or out. Excessive friction on the pivoting mechanism of the side view mirror hinge.
B5104202020-04-20. Service bulletin. STEERING; BACK OVER PREVENTION. RATTLE NOISE FROM STEERING COLUMN TRIM: A rattle noise is present from the area of the lower steering column trim (lower shroud). One or more of the lower steering column trim latching mechanisms is broken.
B3405172020-04-20. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC; WHEELS; POWER TRAIN. TICKING NOISE WHILE CORNERING WITHOUT THE BRAKES APPLIED: This Service Information Bulletin (Revision 3) replaces SI B34 05 17 dated September 2017. Ticking noise coming from front wheel while cornering without brakes applied noticeable at low speeds. The vehicle must be moving. See attached video V34 01 20 Note: For a similar noise heard when parking with the brakes applied refer to SIB 31 01 12. Microscopic movement of the contact interface between the inner brake disc and the wheel bearing flange on vehicles equipped with lightweight brake discs.
B6631192020-03-16. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. REARVIEW CAMERA. SPORADICALLY NO IMAGE IS DISPLAYED: This Service Information Bulletin (Revision 1) replaces SI B66 31 19 dated October 2019. When reverse gear is selected or the rear view camera is activated sporadically no image is displayed on the Central Information Display (CID). If the ignition is cycled off and back on the function is restored. Software error between the head unit and the rear-view camera.

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