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Service bulletins for the 2021 BMW X4

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.

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

By type

By component

Bulletins, newest first
SIB6402222022-07-05. Service bulletin. ENGINE AND ENGINE COOLING. Mist formation on the windshield inside surface may occur at departure or after MSA (automaticstart/stop). Acoustic abnormality in the area of the recirculated air flap (recirculation flap closing and opening severaltimes). The above may occur individually or in combination.
SIB6108222022-07-05. Service bulletin. EQUIPMENT:ELECTRICAL. When using the Key Reader to retrieve information from the customer's key, no current vehicle data is available.
SIB6107222022-07-05. Service bulletin. EQUIPMENT:ELECTRICAL. Check Control Message (CCM) displays "Vehicle key missing" after engine start.
SIB5107222022-07-05. Service bulletin. STRUCTURE. This bulletin outlines known areas of possible functional issues, operational noise, or wind noise for the vehicles listed above. It serves only as a diagnostic resource in troubleshooting complaints pertaining to the doors, windows, and mirrors. This bulletin and the associated attachments are designed to provide one single diagnostic resource for troubleshooting all known issues related to the door, windows, and mirrors of BMW Sports Activity Vehicles which have quality improvement measures already in place.
SIB6501222022-06-21. Service bulletin. AIR BAGS; LANE DEPARTURE. A check control message for the restraint system appears. In the instrument cluster, the red air bag warning light lights up permanently.
B5201222022-06-21. Service bulletin. SEATS; SEAT BELTS. A groaning noise can be heard when accelerating and cornering from the area of the shoulder safety belt support(s). The complaint can occur in both the driver's seat and the front passenger seat.
B3101222022-06-21. Service bulletin. WHEELS. During inspection and/or diagnosis there is noticeable dirt/grease buildup on the axles near the inner and/or outer CV boots.
B2701222022-06-21. Service bulletin. EQUIPMENT. BMW AG has issued a Delivery Stop (effective January 11, 2022) on a small number of Model Year 2022 BMW vehicles that were produced between December 23, 2021 and January 4, 2022. Due to a production failure, the control unit was assembled with a capacitor instead of a resistor.
B0903212022-06-21. Service bulletin. BACK OVER PREVENTION:SOFTWARE. In some rare cases a customer vehicle might be excluded from one or more Remote Software Upgrade(RSU) campaigns. This SIB gives an overview how to identify these vehicles and how to proceed in case of a customer complaint.
B6107222022-05-31. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Check Control message (CCM) displays "Vehicle key missing" after engine start.
B6106222022-05-31. Service bulletin. VISIBILITY/WIPER. No actuation of front and rear windscreen wipers is possible.
B6101212022-05-31. Service bulletin. EQUIPMENT:ELECTRICAL. 48 V battery may become totally discharged, and possible replacement needed.
B6501222022-05-31. Service bulletin. AIR BAGS. A check control message for the restraint system appears. In the instrument cluster, the red air bag warning light lights up permanently.
B6401212022-05-31. Service bulletin. ENGINE; EQUIPMENT; VISIBILITY:SUN/MOON ROOF ASSEMBLY. A whistling noise is present from the fresh air inlet area (engine compartment bulkhead area), in the right front area of the vehicle, at speeds above 40 mph. The noise is loudest when the sunroof is in the vent position.
B6401212022-05-16. Service bulletin. STRUCTURE; VISIBILITY:SUN/MOON ROOF ASSEMBLY. A whistling noise is present from the fresh air inlet area (engine compartment bulkhead area), in the right front area of the vehicle, at speeds above 40 mph. The noise is loudest when the sunroof is in the vent position.
B5202212022-05-16. Service bulletin. SEATS. Milky-white stains (discolorations) in the leather are observed in the second-row seat bottom, backrests and/or headrests. Refer to attachment for details. This only affects vehicles with the Merino leather.
B5105222022-05-16. Service bulletin. STRUCTURE:BODY. BMW AG has issued a Delivery Stop (effective March 28, 2022) on certain Model Year 2022 BMW vehicles that were produced between February 28, 2022 and March 8, 2022 because the torsion struts were not installed at the plant.
B2701222022-05-16. Service bulletin. ENGINE. BMW AG has issued a Delivery Stop (effective January 11, 2022) on a small number of Model Year 2022 BMW vehicles that were produced between December 23, 2021 and January 4, 2022. Do not deliver to a customer, a New, Certified Pre-Owned or Used vehicle subject to a Delivery Stop, until the vehicle is repaired. Do not use or sell replacement equipment/parts subject to a Delivery Stop. Due to a production failure, the control unit was assembled with a capacitor instead of a resistor.
B6615192022-05-16. Service bulletin. EQUIPMENT; LANE DEPARTURE; STEERING. The steering intervention for Lane Departure Warning (LDW) is too strong (severe), which can create an uncomfortable feeling for the driver. Background: Steering intervention helps keep the vehicle in the lane if the system detects that a lane marking has been crossed. The steering intervention can be noticed on the steering wheel and can be manually overridden at any time.
B6201222022-02-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL. Temporary black screen in the instrument cluster.
B2701222022-02-22. Service bulletin. ENGINE; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). DELIVERY STOP: REPLACE CONTROL UNIT TRANSFER CASE. Due to a production failure, the control unit was assembled with a capcitator instead of a resistor.
B8409172022-01-24. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. While using the wireless charger, one or both of the following may occur: 1) The BMW display key or mobile phone becomes hot to the touch. 2) The device switches off due to over temperature (built-in device protection).
B8406212022-01-24. Service bulletin. EQUIPMENT; COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM. The SIM card installed in the telematics control unit (ATM2) connects to different mobile providers' networks. However, due to a missing parameter, this does not work and can cause disruption in BMW ConnectedDrive services in areas with insufficient network coverage.
B8404212022-01-24. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Wi-Fi Hotspot is missing and inoperable.
B6521212022-01-24. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. SiriusXM satellite radio is not working and does not display a channel list.

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