2021 BMW X4 Engine Problems
- Complaints
- 2about this part
- Share
- 33%of 6 total for the year
- Median mileage
- 70,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2021 BMW X4, 33% of the 6 complaints for this model year. Where a mileage was given, the median is 70,000 miles. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I am reporting a safety concern regarding BMW vehicles equipped with the B58 Technical Update (B58TU) engine, commonly found on models from 2019 to 2021. The oil pump in these vehicles is failing prematurely. I was told this by service technicians at BMW and confirmed it through my own research. The oil pump failure is due to a plastic adjusting ring breaking. The result is severe oil pressure loss and engine failure. This is uncommon for a vehicle that has 65k miles. The engine failure comes without warning; there are no check engine light warnings. …”
NHTSA complaint #11729655, filed 2026-04“The contact owns a 2021 BMW X4. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System). While the vehicle was in park(P), there were abnormal sounds coming from the engine. The contact stated that when the vehicle was shifted into drive(D) and the brake pedal was depressed, there was an abnormal sound coming from the front of the vehicle. The vehicle was taken to a dealer on several occasions, but the failure was not duplicated. The vehicle was then taken to an independent mechanic and was currently being diagnosed. …”
NHTSA complaint #11717328, filed 2026-02, 70,000 milesRelated recalls
- 21V598000Aug 2, 2021BMW 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…Covers: BMW X4 2020–2021, Z4 2019–2021, Toyota Supra 2020–2021 +3 more
Related service bulletins
- 11035500Jul 17, 2026The 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…
- 11035497Jun 29, 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…
- 11032731May 6, 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…
- 10211853Mar 1, 2022BMW 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…
- 10212524Feb 1, 2022A 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…
- 10208177Jan 1, 2022DELIVERY STOP: REPLACE CONTROL UNIT TRANSFER CASE. Due to a production failure, the control unit was assembled with a capcitator instead of a resistor.
- 10199292May 1, 2021B58 ENGINE: ENGINE OIL FILTER REMOVAL PROCEDURE AND TOOLS . A. For the B58 engines, a BMW Oil Catch special tool for use in conjunction with removing the engine oilfilter insert…
- 10194310Apr 1, 2021WHISTLING NOISE COMING FROM FRESH AIR INLET (ENGINE COMPARTMENT): A whistling noise is present from the fresh air inlet area (engine compartment bulkhead area), in the right…
- 10187473Jan 1, 2021CONNECTING ROD BEARING: The engine must be replaced due to a crankcase manufacturing error.
Engine: other model years
Other parts of the 2021 BMW X4
2 complaintsOther or unknown
1 complaintsSuspension
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2021 BMW X4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology