2021 BMW X4
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 BMW X4 is worth — from official NHTSA and EPA data. 262 on record.
2021 BMW X4 at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2021 BMW X4 recalls 7
BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 2021-2024 X3 vehicles. Please see the recall report for a complete list of all models. The engine starter may overheat an…
Fix: Dealers will replace the engine starter, free of charge. Owner notification letters were mailed July 21, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Vehicle Identification Numbers (VINs) involved in this recall will be searchable o…
BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.
Fix: Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identificatio…
BMW of North America, LLC (BMW) is recalling certain 2019-2021 330i, 330i xDrive, M340i xDrive, 2020-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, 2021 X3 xDrive30e, X4 xDrive30i, and X4M vehicles. The seat frame may not have been welded properly to the seat rails.
Fix: Dealers will replace the seat frame and back rest, free of charge. Owner notification letters were mailed May 22, 2023. Owners may contact BMW customer service at 1-800-525-7417.
BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles. During engine start, the engine management software may cause loss of braking assist. Full mechanical braking (without assist) remains available.
Fix: Dealers will update the engine management software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact BMW customer service at 1-800-525-7417.
BMW of North America, LLC (BMW) is recalling certain 2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, and X4, and 2021 X4 xDrive30i vehicles. The inlet check valve weld may fail, allowing the filling pipe to separate from the fuel tank.
Fix: BMW will notify owners, and dealers will replace the fuel tank, free of charge. The recall is scheduled to begin May 17, 2021. Owners were also contacted by telephone. To date, all repairs have been done. No further owner notification letters will be sent. Owners may contact BMW customer service at…
BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7 xDrive50i, X7 M50i, Alpina XB7, 330i, 330i xDrive, M340i, M340i xDrive, and 8 Series Coupe, Convertible and Grand Coupe, 840i, 840i xDrive, M850i xDrive, M8, 2020-2021 530e, 530e xDrive, 330e, 330e xDrive, …
Fix: BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW customer service at 1-800-525-7417.
BMW of North America, LLC (BMW) is recalling certain 2020-2021 X3 sDrive 30i, X3 xDrive 30i, X3M 40i, X3 xDrive 30e, X4 xDrive 30i, X4M 40i, 530i, 540i, 540i xDrive, M550i xDrive, M5, 550e, 550e xDrive, and 550e iPerformance vehicles. A small portion of the rearview image may be slightly obscured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear …
Fix: BMW will notify owners, and dealers will inspect and, if necessary, program the rearview camera with updated software. The recall began November 18, 2020. Owners may contact BMW customer service at 1-800-525-7417.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
2021 BMW X4 common problems
The most-reported problem areas across all 6 owner complaints filed with NHTSA — and what to check before you buy.
Dimensions & weight
Manufacturer-reported figures for the 2021 BMW X4 — ranges cover the 2 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.
Investigations & service bulletins
Manufacturer service bulletins 168
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 168.
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.
Bulletin B110426 · Electrical System, Engine · Jul 2026The 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.
Bulletin B010324 · Engine · Jun 2026The 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.
Bulletin B010324 · Engine · May 2026The 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.
Bulletin B661719 · Service Brakes · Apr 2025The 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.
Bulletin B650122 · Air Bags · Jan 2025While driving the vehicle on normal roads at10mph and above, a "cracking" sound from the top of the B-pillar(s) is heard.
Bulletin B410722 · Structure · Apr 2024One or more of the LED daytime running lights are dim or discolored.
Bulletin B630418 · Exterior Lighting · Mar 2024During inspection and/or diagnosis there is noticeable dirt/grease buildup on the axles near the inner and/o router CV boots.
Bulletin B310122 · Suspension · Mar 2024An 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 mov…
Bulletin B640422 · Electrical System, Visibility · Feb 2024The 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.
Bulletin B170122 · Engine And Engine Cooling · Jan 2024Source: NHTSA Office of Defects Investigation, listed for the X4 AWD. Model-year data, not specific to one car.
Canadian recalls 6
Transport Canada recall campaigns for the 2021 BMW X4. Relevant if the car was first sold in, or imported from, Canada.
Engine
Issue: On certain vehicles, the engine starter may not have been manufactured properly. As a result, the starter could overheat. Note: This recall is an expansion of Transport Canada recall no. 2026-040. Safety Risk: A starter that overheats can create the risk of a fire. Corrective Actions: To reduce the safety risk, BMW recommends not using the remote start function and not l…
Transport Canada #2026331 · Jul 2026Engine
Issue: On certain vehicles, the engine starter may not have been manufactured properly. As a result, the starter could overheat. Safety Risk: A starter that overheats can create the risk of a fire. Corrective Actions: To reduce the safety risk, BMW recommends not using the remote start function and not leaving the vehicle unattended with the engine running until the recall repa…
Transport Canada #2026040 · Jan 2026Electrical
Issue: On certain vehicles, water could leak into the starter relay and cause it to corrode. If this happens, the relay could short circuit and the starter could overheat. Safety Risk: A short circuit and/or a starter that overheats can create a fire risk, even while the vehicle is parked and turned off. Corrective Actions: To reduce the safety risk, BMW advises that you should…
Transport Canada #2025499 · Sep 2025Label
Issue: On certain vehicles, the tire and loading information label does not list that there is no spare tire in both official languages. The label reads as "NONE" when it should read as "NONE / AUCUN". Canadian regulations require the information to be listed on the label in both English and French. Safety Risk: This error does not affect vehicle safety. Corrective Actions: Thi…
Transport Canada #2024544 · Aug 2024Brakes
Issue: On certain vehicles, a software problem could cause the vacuum pump to be damaged during engine starting. If this happens, there could be a loss of brake assist. This can cause an increase in brake pedal effort and increase the distance needed to stop the vehicle. Safety Risk: A sudden increase in brake pedal force could lead to an increased stopping distance. This could…
Transport Canada #2021479 · Aug 2021Visual System
Issue: On certain vehicles, a software problem could cause the rearview camera image not to appear correctly in the central display. Canadian regulations require the rearview image to display when the transmission is shifted into reverse gear. Safety Risk: A rearview camera image that does not display correctly could reduce a driver's ability to see behind the vehicle while bac…
Transport Canada #2021078 · Feb 2021Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the BMW X4
The BMW X4 is a compact luxury crossover SUV manufactured by BMW from 2014 to 2025. It is marketed as a sports activity coupé (SAC), the second model from BMW marketed as such after the X6, and features styling elements and the roofline of a traditional two-door coupé. The X4 is widely considered as a "coupé" version of the X3, trading its practicality with a sloping rear roof which offers a sportier styling. BMW has indicated 2025 will be the X4's final model year.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.
2021 BMW X4 vehicles on record
2021 BMW X45UX2V5C08M9G87220
2021 BMW X4WBAUJ710209G94577
2021 BMW X45UX2V5C06M9H42988
2021 BMW X4WBAUJ710409H24436
2021 BMW X45UX2V1C02M9G84273
2021 BMW X45UX2V1C09M9H40435
2021 BMW X4WBAVJ910109G14654
2021 BMW X4WBAUJ710609G96056
2021 BMW X45UX2V1C09M9G20165
2021 BMW X4WBAUJ710109G91850
2021 BMW X4WBA4M310609F98807
2021 BMW X4WBA4M910209H12899
2021 BMW X4WBAVJ910009G70780
2021 BMW X45UX33DT00N9K40920
2021 BMW X4WBA31CA0909K48136
2021 BMW X45UX2V1C07M9G26160
2021 BMW X4WBAUJ710109G94408
2021 BMW X4WBAUJ710709G94199
2021 BMW X4WBAUJ710209H70640
2021 BMW X45UX33DT0XN9K71656
2021 BMW X4WBA11DT0109K12385
2021 BMW X45UX33DT03N9J29228
2021 BMW X45UX2V1C0XM9G39856
2021 BMW X4WBAUJ710709G04596