2021 BMW X4 Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 17%of 6 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 2021 BMW X4, 17% of the 6 complaints for this model year.
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 2026-04Related service bulletins
- 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.
Transmission and drivetrain: other model years
Other parts of the 2021 BMW X4
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About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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