2021 BMW X4 Technical Service Bulletins

168 technical service bulletins (TSBs) are on record for the 2021 BMW X4. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11035500Jul 17, 2026Engine, Electrical system. The manual starting of electronic engine oil level measurement from inside the vehicle, usually afterperforming an engine oil service task, is inoperative or it may lock up at between a 15% to 30% completionrate.
• 11035497Jun 29, 2026Engine. The EVAP systems purge (vent) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in-service / delivery date.
• 11032731May 6, 2026Engine. The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date.
• 11017504Apr 30, 2025Brakes. The vehicle applies the brakes on its own when reversing onto an inclined roadway or driveway. This appliesonly to the situation where the Active PDC option is activated via the iDrive.
• 11013058Jan 6, 2025Air bags. The limited warranty for the Knee Air Bag wire harness repair cable procedure for defects in materials and / or workmanship has been extended to 10 years / 120,000 miles as determined from the original first in-service / delivery date.
• 10253326Apr 4, 2024Body and structure. While driving the vehicle on normal roads at10mph and above, a "cracking" sound from the top of the B-pillar(s) is heard.
• 10252033Mar 14, 2024Suspension. During inspection and/or diagnosis there is noticeable dirt/grease buildup on the axles near the inner and/o router CV boots.
• 10252031Mar 14, 2024Exterior lighting. One or more of the LED daytime running lights are dim or discolored.
• 10250374Feb 16, 2024Electrical system, Visibility (wipers, defrost, mirrors). An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap moves to a different position. Due to the complex design of the heating and air-conditioning unit, the kinematics causing it (top or bottom,left or right) may…
• 10249425Jan 29, 2024Engine cooling. The Check Control message below appears even though the coolant level is not below minimum when theengine is cold. Check Control message (ID 166): Top up coolant.
• 10249437Jan 16, 2024Visibility (wipers, defrost, mirrors), Electrical system. The basic conditions for initializing the power windows are not met.
• 10249027Jan 11, 2024Electrical system. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.
• 10249016Jan 9, 2024Suspension. With the vehicle is on a lift and the front struts are in the extended position, there may be a cracking and orclicking type noise when turning the steering wheel left/right. See attached video V31 01 24. The sound can reoccur when the vehicle is lowered, and the wheels are once again under load. The noise might also be heard for a short time while driving.
• 10249024Jan 8, 2024Body and structure. This bulletin outlines known areas of possible water entry, operational noise, or wind noise for the vehicles listed above. It serves only as a diagnostic resource in troubleshooting complaints from the roof area. This bulletin and the associated attachments are designed to provide one single diagnostic resource for troubleshooting all known issues related to the panoramic sunroof of BMW Sports Activity Vehicles…
• 10249018Jan 8, 2024Steering. At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking, maneuvering)with a large steering angle, the front end can be slightly axially misaligned. This can be felt (jerking)/ heard via an acoustic acknowledgement (clunk) as seen at the 11 second mark of the video. See attached video V36 01 21.
• 10249032Jan 5, 2024Electrical system, Equipment. The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 – “HU-H: Reset” will be stored in the HU-H3.
• 10249015Jan 5, 2024Fuel system. A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system(NVLD natural vacuum leak detection).
• 10247574Dec 15, 2023Seats. A noise can be heard from underneath the seat while the seat is being moved either forwards or backwards. This can occur to the driver’s and/or the passenger’s front seat.
• 10246225Nov 28, 2023Air bags. A check control message (CCM) for the restraint system (Air bag) appears. In the instrument cluster, the red air bag warning light lights up permanently. One of the following fault codes is stored in the ACSM (air bag control unit): 930949 - Knee airbag, driver: short circuit to negative terminal 93094F - Knee airbag, front passenger: short circuit to negative terminal 93094C - Knee airbag driver's side: Resistance…
• 10244239Oct 18, 2023Body and structure, Visibility (wipers, defrost, mirrors). This situation can result in two customer complaints: 1. Wind noise 2. Excess water entry
• 10242880Sep 25, 2023Body and structure. A groaning noise is heard from the trunk when driving on rough roads.
• 10242874Sep 11, 2023Equipment. Customers may be experiencing one or more of these following issues with Bluetooth operation: Bluetooth cannot be switched on or off in the head unit (HU-H4) Paired mobile devices cannot be deleted Customer is unable to make phone calls or stream music with mobile device Customer is unable to connect a new mobile device via Bluetooth Mobile device does not automatically reconnect via Bluetooth in the next drive…
• 10242699Aug 1, 2023Visibility (wipers, defrost, mirrors), Body and structure. ?When driving over uneven pavement or cobblestones, a knocking noise is present from the passenger side front area (A pillar). Once the vehicle is driven on a flat, even surface; the noise is no longer present.
• 10242696Aug 1, 2023Visibility (wipers, defrost, mirrors), Body and structure. ?Water leaking into the vehicle from the headliner/microphone area.
• 10242692Aug 1, 2023Body and structure. While driving the vehicle on normal roads at 10mph and above, a "cracking" sound from the top of the B-pillar(s) is heard.
• 10242690Aug 1, 2023Steering, Suspension. ?Disturbing noises (thump/pop) when reversing slowly near the steering wheel limit position; for example, when leaving a parking space.
• 10242686Aug 1, 2023Equipment, Body and structure. ?An unapproved nut was used for the ground point for the chassis ground.
• 10242529Aug 1, 2023Lane departure, Air bags. A check control message (CCM) for the restraint system (Air bag) appears. In the instrument cluster, the red air bag warning light lights up permanently.
• 10239611Jun 1, 2023Exterior lighting, Electrical system. Headlight check control (CC) message 128 "High beam headlight failure" is displayed. The following fault codes are stored during a vehicle test: 80419A - Left high-beam headlight: Short circuit and/or 8041A5 - light outputs: Number of permitted short circuit cycles exceeded
• 10239602Jun 1, 2023Fuel system. A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system (NVLD natural vacuum leak detection). For this condition, the following fault is stored in the DME: 190302 - fuel tank ventilation and scavenging air system, micro-leak: leakage more than 0.5 mm.
• 10239601Jun 1, 2023Equipment. BMW AG has issued a Delivery Stop effective June 6, 2023 on certain Model Year 2023 - 2024 BMW vehicles that were produced between October 26, 2022 and May 8, 2023.
• 10239599Jun 1, 2023Electrical system. With the introduction of the BMW Remote Software Upgrade, all Service Pack 18 vehicles and partial Service Pack 15 vehicles may receive new functionality or modifications in their features.
• 10238091May 1, 2023Electrical system. BMW AG has issued a Delivery Stop (effective October 15, 2021) on certain Model Year 2022 BMW vehicles that were produced between September 28, 2021 and October 8, 2021. The issue involves the Active Crash Safety Module (ACSM) sensor.
• 10238090May 1, 2023Electrical system. After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.
• 10238083May 1, 2023Electrical system. Due to a software error, the vehicle sporadically does not achieve sleep mode. As a result, the 12-volt battery becomes discharged and may cause a no-start condition.
• 10238081May 1, 2023Body and structure. Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
• 10238080May 1, 2023Visibility (wipers, defrost, mirrors), Electrical system. Due to the semiconductor supply, the Local Interconnect Network module in either of the exterior mirrors was switched to another controller. That one provides an imprecise voltage measurement, which the main controller interprets as a fault.
• 10238077May 1, 2023Visibility (wipers, defrost, mirrors). Upon opening or closing (i.e., folding in or out) the exterior mirror assembly, a creaking sound is heard from either the driver and/or passenger side.
• 10238072May 1, 2023Brakes. Brake squeak may occur with cold brakes and driving slowly or reversing
• 10236236Apr 1, 2023Electrical system. Issues with the various functions of the camera-based driver assistance systems (KAFAS system) can possibly lead to following customer complaints: KAFAS camera system deactivates itself, due to system restrictions that are not clear to the customer KAFAS camera system cannot be activated due to system restrictions that are not clear to the customer Road signs are sporadically not detected.
• 10236229Apr 1, 2023Other or unknown, Visibility (wipers, defrost, mirrors), Electrical system. Due to the semiconductor supply, the Local Interconnect Network module in either of the exterior mirrors was switched to another controller.
• 10236223Apr 1, 2023Wheels, Steering. Disturbing noises (thump/pop) when reversing slowly near the steering wheel limit position; for example, when leaving a parking space.
• 10236218Apr 1, 2023Engine cooling. In hot ambient conditions, if the engine was running for a prolonged time while the vehicle is stationary, a jolt may be experienced while lightly accelerating.
• 10235206Mar 1, 2023Equipment, Lane departure. Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates).
• 10235205Mar 1, 2023Electrical system, Equipment. The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration in the mobile communication network. Due to a production error, the telematics control units were delivered without an IMS configuration.
• 10235203Mar 1, 2023Equipment. Customer states there is no audio playback (telephony, navigation, radio) and system sounds (PDC, turn indicators, acoustic signals) may also have failed.
• 10235200Mar 1, 2023Exterior lighting. One or more of the LED daytime running lights are dim or discolored.
• 10235198Mar 1, 2023Electrical system. In SPORT mode, a black square appears in the RPM gauge (tachometer) section of the instrument cluster display.
• 10235196Mar 1, 2023Electrical system. The gear selector switch (GWS) consists of the control electronics circuit and the selector lever. The sensors for recording the gearshift lever position and for inhibiting inadvertent gearshifts are integrated in the control electronics.
• 10235191Mar 1, 2023Electrical system. Due to a software error, the vehicle sporadically does not achieve sleep mode. As a result, the 12-volt battery becomes discharged and may cause a no-start condition.

← All problems reported for the 2021 BMW X4