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Service bulletins for the 2019 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.

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

By type

By component

Bulletins, newest first
B5134192019-11-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. FLOOR MATS DO NOT STAY IN PLACE. The floor mat fastening pads come loose, causing the floor mat to move out of place.
B8413192019-10-21. Service bulletin. EQUIPMENT:ELECTRICAL. CONNECTEDDRIVE: BMW APPS AND SERVICES NOT AVAILABLE. The BMW ConnectedDrive Services are no longer available in the vehicle nor are the BMW Apps displayed in the vehicle. Also "Update Apps and Services" via the iDrive is not selectable (greyed out). Synchronization error between the vehicle and the BMW ConnectedDrive backend system.
B6517192019-10-21. Service bulletin. ELECTRICAL SYSTEM. HU-H3 MGU HEAD UNIT DOES NOT START CID REMAINS BLACK: If the ignition is briefly switched off and without the vehicle entering sleep mode the MGU (Media Graphics Unit) head unit does not start The CID display remains black.
B6113192019-10-21. 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.
B5409192019-10-21. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. RUBBER BUMPER PAD PULLS OFF OF CONVERTIBLE TOP LATCH: Rubber bumper pads (circled) are normally attached to the latch on the convertible top.
B5222192019-10-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; SEATS. NOISE DURING FORWARD/BACK SEAT ADJUSTMENT OVER THE ENTIRE LENGTH OF TRAVEL: A loud screeching noise can be heard from the front driver's or passenger's seat during forward/back seat adjustment.
B8412192019-10-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. BLUETOOTH: VARIOUS CONNECTIVITY CONCERNS. Various Bluetooth connectivity concerns may sporadically occur. Some known concerns are as follows: Device(s) sporadically does not reconnect to the vehicle Disconnect during a phone call New device cannot be paired to the vehicle Software in the Head unit (HU-H3).
B6630192019-10-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. ACTIVE CRUISE CONTROL (ACC): FRONT MID-RANGE RADAR FAULT CODE 48214E. Only after programming the vehicle with ISTA 4.19.1 or lower the fault code 48214E is set or stored in MidRange Radar (MRR) control module.
B6622192019-10-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. KAFAS STOPS RESPONDING AND FAILS PROGRAMMING: During programming of the vehicle the session aborts or the programming fails due to the KAFAS camera (Camera-based Driver Assistance System) no longer responding.
B5127192019-10-21. Service bulletin. STRUCTURE. SIDE TRIM IS LOOSE OR COMES OFF: INFORMATION Trim replacement is only required if the trim strip is missing or damaged otherwise the original trim can be re-installed.
B1107192019-09-23. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). RATTLING NOISE FROM ENGINE IN NEUTRAL This Service Information bulletin supersedes SI B11 07 19 dated May 2019. The affected production range has been increased by 6 months. Rattling noises coming from the oil sump and crankcase area when the engine is running with the transmission in neutral. The noise can be heard outside the vehicle.
B8408192019-09-23. Service bulletin. ELECTRICAL SYSTEM. APPLE CARPLAY: WI-FI DISCONNECTS AND DOES NOT RECONNECT This Service Information bulletin replaces SI B84 08 19 dated July 2019. The Wi-Fi connection is interrupted (disconnects) and does not reconnect by itself. As a result functionality such as Apple CarPlay does not work until after a vehicle sleep cycle (at least 16 minutes).
B6201192019-09-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. INSTRUMENT CLUSTER AND ONBOARD COMPUTER INTERMITTENTLY INOPERATIVE This Service Information Bulletin (Revision #2) replaces SI B62 01 19 dated March 2019. Updated I-level info. Instrument Cluster (KOMBSP18) functions are intermittently inoperative including: On-board Computer (BC) button on turn signal stalk (BC button shown at left) Radio displays Menu button Turn signal displays Arrows on multifunction steering wheel MFL thumbwheel control (shown at left) Additionally 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.
B8408192019-09-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. APPLE CARPLAY: WI-FI DISCONNECTS AND DOES NOT RECONNECT This Service Information bulletin replaces SI B84 08 19 dated July 2019. The Wi-Fi connection is interrupted (disconnects) and does not reconnect by itself. As a result functionality such as Apple CarPlay does not work until after a vehicle sleep cycle (at least 16 minutes).
B6627192019-08-19. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY; LANE DEPARTURE: WARNING. LANE CHANGE WARNING: LIGHT ON EXTERIOR MIRROR NO LONGER WORKS. The Lane Change Warning (LCW) light on either one or on both of the exterior (side view) mirrors no longer illuminates. This also activates a CCM for "Driver Assistance system restricted" to be displayed in the CID. Faulty exterior mirror glass or wire connection.
B6624192019-08-19. Service bulletin. ELECTRICAL SYSTEM; ENGINE; STEERING. REMOTE CONTROL IS NOT DETECTED. Vehicle cannot be opened or closed using comfort access engine start is not possible and the vehicle may not start when placing the key again in the steering column.
B6620192019-08-19. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. SERVICE ACTION: REPLACE KAFAS (CAMERA-BASED DRIVER ASSISTANCE SYSTEM) CAMERA: A malfunction of the KAFAS camera can occur due to a voltage supply fault. This triggers a Check Control Message (CCM) to be displayed sporadically during the drive cycle.
B6208192019-08-19. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. CC MESSAGE THAT FUEL TANK IS EMPTY AND RANGE IS ZERO WHILE THERE IS STILL FUEL: The customer states that sporadically the vehicle's remaining drive range is displayed as 0 miles even though the fuel level indicator (aka gas gauge) still indicates that there is sufficient fuel in the tank. There is also a Check Control message (CCM ID 286) displayed: "range 0. Please refuel" After the vehicle goes to sleep and restarts. The display functions normally. The correct remaining range is displayed Software error in the instrument cluster.
B3206192019-08-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. VARIOUS CHECK CONTROL (CC) MESSAGES FOR FAILURE OF DRIVER ASSISTANCE SYSTEMS.
B1230182019-08-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. ERRONEOUS FAULT 1F2505 IS STORED IN THE DME This Service Information bulletin replaces SI B12 30 18 dated November 2018. This fault does not cause any drivability complaints or engine warning lamps.
B8410192019-07-22. Service bulletin. EQUIPMENT:ELECTRICAL. HANDS-FREE MICROPHONE: POOR VOICE INPUT QUALITY. The voice quality input is not clear or is difficult to understand from inside the vehicle.
B8408192019-07-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. APPLE CARPLAY: WI-FI DISCONNECTS AND DOES NOT RECONNECT This Service Information bulletin replaces SI B84 08 19 dated May 2019.
B6619192019-07-22. Service bulletin. ELECTRICAL SYSTEM. COMFORT ACCESS AND COMFORT GO NOT POSSIBLE. Vehicle cannot be opened/locked or started via Comfort Access. Electrostatic charge puts the remote control key into a deep sleep.
B6306192019-07-22. Service bulletin. EXTERIOR LIGHTING. Service Information May 2019 Lights B63 06 19 Technical Service AMBIENT LIGHTING SETTINGS LOST AFTER RESTARTING.
B6109192019-07-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. SERVICE ACTION: CHECKING THE SIGNAL WIRE AT POWER DISTRIBUTION BOX. The lithium-ion battery in the dual storage system is connected to the terminal 30C to enable issuing a switch-off command in the event of a crash.

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