Before you buy
This 2021 Bmw X4 has 6 NHTSA complaints — top issue: Engine Problems.
A model-year pattern isn't the car in front of you. Check this exact VIN for accidents, open recalls, odometer rollback, and salvage titles.
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2021 Bmw X4 Fuel Economy
✓ EPA Official DataEPA-rated fuel economy across 4 2021 Bmw X4 trim configurations. The median figure is shown; range reflects all available trims.
Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions. 4 trims analysed.
2021 Bmw X4 Safety Ratings
NHTSA 5-Star ProgramOfficial crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.
Overall
Not RatedFrontal Crash
Not RatedSide Crash
Not RatedRollover
Not RatedSource: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.
Based on NHTSA complaint data, the 2021 Bmw X4 has 6 owner complaints, 0 crash-related complaints, and 7 recall campaigns on record. The most frequently reported component is Engine Problems. NHTSA reliability signal: Good Record.
- Make
- Bmw
- Model
- X4
- Model year
- 2021
- NHTSA owner complaints
- 6
- Crash-related complaints
- 0
- Safety recall campaigns
- 7
- Top reported component
- Engine Problems
- Reliability signal
- Good Record
- EPA MPG combined
- 23
- EPA MPG city / highway
- 21 / 27
- Fuel type
- Premium Gasoline
- Electronic stability control
- Standard
Common problems
Most common 2021 Bmw X4 problems
Top owner-reported complaint areas and where they often appear.
Engine Problems
Seat Belt Issues
Transmission / Drivetrain
Complaint patterns center on Engine Problems, Seat Belt Issues, Transmission / Drivetrain. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Buyer verdict
Should you buy a used 2021 Bmw X4?
The 2021 Bmw X4 looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car.
Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.
Pre-purchase
What to check before buying a used 2021 Bmw X4
Inspection Focus
- Inspect engine for any reported problems, such as stalling or performance issues.
- Check seat belt functionality and ensure all belts retract and latch properly.
- Verify all open recalls at nhtsa.gov/recalls using the VIN.
- Request service records for any reported transmission, suspension, or engine repairs.
Before You Close the Deal
- Inspect engine for any reported problems, such as stalling or performance issues.
- Check seat belt functionality and ensure all belts retract and latch properly.
- Verify all open recalls at nhtsa.gov/recalls using the VIN.
- Request service records for any reported transmission, suspension, or engine repairs.
- Have a mechanic perform a pre-purchase inspection focusing on the engine and seat belts.
Check the exact car
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2021 Bmw X4, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
AI verdict
What the complaint data suggests
Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology
Based on 6 complaints for the 2021 BMW X4, issues are concentrated in the engine and seat belt systems. No crash-related complaints were reported, but the low complaint volume limits confidence in these patterns.
- Engine problems and seat belt issues each account for 2 of the 6 total complaints.
- Transmission/drivetrain, suspension, and uncategorized issues each have 1 complaint.
- No crash-related complaints were reported for the 2021 model year.
- Engine Problems
- Seat Belt Issues
- Transmission / Drivetrain
Full breakdown
All 2021 Bmw X4 complaints by category
Every owner-reported complaint category filed with NHTSA for the 2021 Bmw X4. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Engine Problems | 2 | — | — | — | |
| Seat Belt Issues | 2 | — | — | — | |
| Transmission / Drivetrain | 1 | — | — | — | |
| Uncategorized Issues | 1 | — | — | — | |
| Suspension Failures | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
In their words
Real owner complaints
Read what owners actually reported to NHTSA for the 2021 Bmw X4. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
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…
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 t…
Went to sit in driver rear seat and put on my seat belt and found it frayed apart. Thought this was od and tried the rear passenger side only to find the exact same thing. Took it to the dealer in Visalia, CA. They said that they have never seen anything like that before. After d…
BOTH rear seat belts have broken off in the same spot. Went to use the driver's side rear seat belt and found it had been broken (frayed off). Moved to the passenger side and found the exact same thing. This could have been a bad situation if in an accident had occurred where th…
transfer case AWD/xDrive system drivetrain components The dealer diagnosed a transfer case failure on the BMW X4 xDrive. Vehicle displayed drivetrain malfunction warning. Repair estimate exceeds $20,000. The vehicle has under 50,000 miles. The issue appears consistent with known…
What component or system failed or malfunctioned, and is it available for inspection upon request? - Suspension How was your safety or the safety of others put at risk? - Its giving head ache and body pain, driver & passengers are jumping / shaking / feeling very uncomfortable …
Source: NHTSA Complaints Database. Real owner reports for the 2021 Bmw X4.
Safety recalls
2021 Bmw X4 recalls
7 campaignsNHTSA recall campaigns for the 2021 Bmw X4. 7 recall campaigns are on record for this model year. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
ENGINE
SEATS
ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
ELECTRICAL SYSTEM:STARTER ASSEMBLY
Research more
Keep researching before you buy
Compare brands and categories, then check the exact car's history by VIN.
Questions
2021 Bmw X4 buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2021 Bmw X4 reliable?▾
Good Record. NHTSA currently shows 6 owner complaints, 0 crash-related complaints, and 7 recall campaigns for this model year. The 2021 Bmw X4 looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.
What are the most common problems with the 2021 Bmw X4?▾
#1: Engine Problems (2 complaints). #2: Seat Belt Issues (2 complaints). #3: Transmission / Drivetrain (1 complaints)
At what mileage do problems start on the 2021 Bmw X4?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2021 Bmw X4?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2021 Bmw X4, NHTSA complaints include 0 crash-related reports and 0 fire reports out of 6 total complaints. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2021 Bmw X4 have any recalls?▾
Yes. 7 NHTSA recall campaigns affect the 2021 Bmw X4. A major recall area is BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. 7 recall campaigns are on record for this model year. Always verify open recalls by VIN because completion status varies by vehicle.
Should I buy a 2021 Bmw X4?▾
The 2021 Bmw X4 looks comparatively lower-risk based on complaint volume, but model-year averages do not confirm the condition of any specific used car. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Engine Problems during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Bmw X4 reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2021 Bmw X4 based on your ownership experience.
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Ratings are based on owner experience and are separate from NHTSA data shown above.
Before you buy
Check the exact vehicle history before you buy
Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.