Last updated: 2026-04-20
2026 BMW 4-Series Reliability Report
The 2026 BMW 4-Series has a predicted reliability score of 65/100 based on prior model year data. Early data shows 4 recalls and 0 owner complaints.
Recalls
4
Complaints
0
Complaint Rate
N/A
Est. Repair Cost
$968
Annual Fuel Cost
$3,650–$3,850
The Verdict
Based on historical reliability patterns, predicted to score 65/100 — worth considering.
Should You Buy the 2026 BMW 4-Series?
The 2026 BMW 4-Series has a predicted reliability score of 65/100 ("Good") based on prior model year performance.
So far: 4 recalls, 0 owner complaints. No owner-reported issues on file yet.
Prior model years suggest some reliability concerns. A thorough pre-purchase inspection and extended warranty are recommended. This is a predicted score — real-world data is still developing.
See also the 2025 BMW 4-Series for an earlier comparison.
Pros
- +Acceptable predicted reliability based on prior model years
- +Low complaint frequency
- +5-star NHTSA crash rating
Cons
- −Score is a prediction — real-world data still developing
- −Moderate recall count
Compare 2026 BMW 4-Series With
2026 Mercedes-Benz C-Class
Predicted: 56/100
2026 Mercedes-Benz E-Class
Predicted: 62/100
2026 Toyota Supra
Predicted: 73/100
2026 BMW 5-Series
Predicted: 70/100
Common Problem Categories
Safety
LOW RISK- 4 manufacturer recalls issued
Recall Overview
4
recalls on record
A moderate 4 recalls are on file for the 2026 BMW 4-Series. Each one points to a specific safety or compliance issue identified by the manufacturer or NHTSA — check the list below before buying.
NHTSA.gov →Complaint Breakdown
0
complaintsSafety Incidents
0
Crashes
0
Fires
0
Injuries
0
Deaths
NHTSA 5/5 Stars
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
2026 BMW 4-Series Recall Details
4 recalls have been issued for the 2026 BMW 4-Series. All recall repairs are performed free of charge at authorized dealerships.
EXTERIOR LIGHTING
BMW of North America, LLC (BMW) is recalling certain 2026 228i Gran Coupe, 228i xDrive Gran Coupe, and M235i xDrive Gran Coupe vehicles. These vehicles are equipped with rear lights that may not function properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, Lamps, reflective devices, and assoc. equipment."
Consequence
A rear taillight, brake light, or rear turn signal light that functions improperly, increases the risk of a crash.
Remedy
Dealers will replace the rear lights, free of charge. Owner notification letters are expected to be mailed March 27, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 27, 2026.
SEAT BELTS
BMW of North America, LLC is recalling certain 2026 2 Series Gran Coupe, X1, X2, and Mini Countryman S ALL4 vehicles. The housing pin in the rear (left and/or right) seat belt retractors may have been damaged during production, resulting in the retractor not locking the seat belt as intended. As such, these vehicles fail to comply to Federal Motor Vehicle Safety Standard number 209, "Seat Belt Assemblies."
Consequence
A damaged seat belt retractor may not properly restrain an occupant during a crash, increasing the risk of injury.
Remedy
Dealers will replace the rear (left and/or right) seat belts, free of charge. Owner notification letters were mailed December 18, 2025. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov December 12, 2025.
ELECTRICAL SYSTEM
BMW of North America, LLC (BMW) is recalling certain 2026 M4 and 430i vehicles. The positive battery cables may not be properly connected to the power distribution box, resulting in an engine stall and a fire.
Consequence
An engine stall increases the risk of a crash and a fire increases the risk of injury.
Remedy
Dealers will inspect and replace cables and power distribution box as necessary, free of charge. Owner notification letters were mailed November 20, 2025. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 17, 2025.
Buying a used 2026 BMW 4-Series? Check its history first
Every 2026 BMW 4-Series has a different past. A VIN check reveals hidden accidents, title problems, odometer rollbacks, and open recalls that reliability scores can't show you.
- Accidents
- Open Recalls
- Title History
- Odometer Rollback
2026 BMW 4-Series NHTSA Safety Ratings
Overall Safety Rating
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 9.2%
Safety Technologies
Gas / PHEV Powertrain
Rollover risk: 0.0%
Safety Technologies
PHEV Powertrain
Rollover risk: 0.0%
Safety Technologies
BMW 4-SeriesRepair Costs & Maintenance
Maintenance Rating
3Maintenance rating: 3 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$968
Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.
2026 BMW 4-Series Example Repair Prices
National average price ranges for common repairs. These are not model-year-specific failure predictions.
| Repair | Estimated Cost |
|---|---|
| Headlamp Switch Replacement | $295 – $338 |
| Engine Oil Level Sensor Replacement | $345 – $561 |
| Air Conditioning Expansion Valve Replacement | $641 – $949 |
| Wheel Bearing Replacement | $783 – $1,140 |
| Tire Rotation | $61 – $90 |
| Timing Chain Replacement | $4,812 – $6,790 |
| Engine Leak Inspection | $153 – $224 |
| Windshield Wiper Blade Replacement | $122 – $143 |
| Timing Chain Tensioner Replacement | $333 – $390 |
| Battery Replacement | $753 – $846 |
Estimates based on national average repair costs. Actual costs may vary by location and shop.
MPG & Annual Running Costs
Gas
18–19 MPG
Running cost: $4,600–$4,800/yr
Fuel + repair
16 city / 22–23 hwy MPG
Hybrid
27–31 MPG
Running cost: $3,200–$3,500/yr
Fuel + repair
24–28 city / 31–36 hwy MPG
Running cost includes EPA fuel-cost estimate and independent repair-cost data (repair cost estimated at model level). Excludes routine maintenance, depreciation, and insurance. Data as of 2026 EPA label cycle.
Gas trims
| Trim | Drive | Trans. | City | Hwy | Comb | Fuel Cost |
|---|---|---|---|---|---|---|
| M4 Competition Coupe 3.0L 6-cyl | Rear-Wheel Drive | Automatic (S8) | 16 | 23 | 19 | $3,650 |
| M4 Coupe 3.0L 6-cyl | Rear-Wheel Drive | Manual 6-spd | 16 | 23 | 19 | $3,650 |
| M4 Competition M xDrive Convertible 3.0L 6-cyl | All-Wheel Drive | Automatic (S8) | 16 | 22 | 18 | $3,850 |
| M4 Competition M xDrive Coupe 3.0L 6-cyl | All-Wheel Drive | Automatic (S8) | 16 | 23 | 18 | $3,850 |
Hybrid trims
| Trim | Drive | Trans. | City | Hwy | Comb | Fuel Cost |
|---|---|---|---|---|---|---|
| 430i Coupe 2.0L 4-cyl | Rear-Wheel Drive | Automatic (S8) | 28 | 36 | 31 | $2,250 |
| 430i Convertible 2.0L 4-cyl | Rear-Wheel Drive | Automatic (S8) | 27 | 35 | 30 | $2,300 |
| 430i Gran Coupe 2.0L 4-cyl | Rear-Wheel Drive | Automatic (S8) | 27 | 35 | 30 | $2,300 |
| 430i xDrive Coupe 2.0L 4-cyl | All-Wheel Drive | Automatic (S8) | 27 | 34 | 30 | $2,300 |
| M440i Coupe 3.0L 6-cyl | Rear-Wheel Drive | Automatic (S8) | 27 | 34 | 30 | $2,300 |
| 430i xDrive Gran Coupe 2.0L 4-cyl | All-Wheel Drive | Automatic (S8) | 25 | 34 | 29 | $2,400 |
| M440i Convertible 3.0L 6-cyl | Rear-Wheel Drive | Automatic (S8) | 27 | 33 | 29 | $2,400 |
| M440i xDrive Coupe 3.0L 6-cyl | All-Wheel Drive | Automatic (S8) | 26 | 33 | 29 | $2,400 |
| 430i xDrive Convertible 2.0L 4-cyl | All-Wheel Drive | Automatic (S8) | 24 | 33 | 28 | $2,450 |
| M440i Gran Coupe 3.0L 6-cyl | Rear-Wheel Drive | Automatic (S8) | 26 | 32 | 28 | $2,450 |
| M440i xDrive Convertible 3.0L 6-cyl | All-Wheel Drive | Automatic (S8) | 25 | 32 | 28 | $2,450 |
| M440i xDrive Gran Coupe 3.0L 6-cyl | All-Wheel Drive | Automatic (S8) | 25 | 31 | 27 | $2,550 |
Best & Worst BMW 4-Series Years
Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.
Best BMW 4-Series Years to Buy
Based on reliability index scoreThe best BMW 4-Series year is 2025 with a reliability score of 67/100, rated good. Other strong picks include 2024 (66/100) and 2022 (66/100).
BMW 4-Series Years to Avoid
The worst BMW 4-Series year is 2020 with a score of 52/100, primarily due to electrical system (17) issues. Also avoid 2018 (54/100).
BMW 4-Series Reliability Score Trend
BMW 4-Series reliability has improved in recent years, with newer models scoring an average of 66/100 compared to 55/100 for older years.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2018 | 54/100 | Mixed |
| 2019 | 55/100 | Mixed |
| 2020 | 52/100 | Mixed |
| 2021 | 57/100 | Mixed |
| 2022 | 66/100 | Good |
| 2023 | 63/100 | Good |
| 2024 | 66/100 | Good |
| 2025 | 67/100 | Good |
BMW 4-Series Reliability Compared to Other Years
2026 BMW 4-Series Reliability by Powertrain
The 2026 BMW 4-Series is available with 3powertrain options. Here's how they compare on reliability.
| Powertrain | Complaints | Recalls | Incidents* | Crash Rating |
|---|---|---|---|---|
| Gas | 0 | 3 | 0 | 5 out of 5 |
| Gas / PHEV | 0 | 0 | 0 | N/T |
| PHEV | 0 | 1 | 0 | N/T |
| Total | 0 | 4 | 0 |
NHTSA tracks complaints separately for each powertrain configuration. Totals reflect the sum across all variants. N/T = Not tested by NHTSA.
* Incidents = crash + fire reports. A single complaint can include multiple incident types.
2026 BMW 4-Series Common Questions
10 questions from 2026 BMW 4-Series owners.
Ignition trouble
If i replace the ignition switch does that include the cylinder tumbler in it,it was thought possibly the cylinder tumbler might need replacing since key will only turn just a little A few days
When turning key car wont start or click on solenoid.
1996 BMW Z3. Is there a relay that controls the starter? all fuses are fine. I replaced the starter and car still wont start or click! Car won't start More than a week
Crank no start
I started my car the other morning and it was about 29° outside. When I started it there was a loud pop under the hood. The car kept running so I drove it about 40 miles. Later that afternoon I went to leave and it would crank but no start I went and bought a battery and it started so I went back home. It's been 3 weeks and it still won't start. Now it's a slow rough crank with no start More than a week
2006 BMW X3 3.0i Coolant leak
Coolant leak-even when car is not running. Have replaced the coolant reservoir, the mounting plate for the reservoir and radiator, the heater control valve and the oil cooler have been replaced. It’s still just dousing the coolant out. Not a drop leak more consistent stream. I’m at a loss for what to do. Leaks regardless of engine on or off A few days
Oil leaking
When driving car smokes on and off I was told it could be valve cover gasket it gas been sitting for 2 months and now is hard to start More than a month
Frequently Asked Questions
Is the 2026 BMW 4-Series reliable?
What are the most common problems with the 2026 BMW 4-Series?
How many recalls does the 2026 BMW 4-Series have?
How is the predicted score calculated?
Don’t buy a 2026 BMW 4-Series without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.
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How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent— Top-tier reliability, minimal issues
- 60–79: Good— Reliable with some minor concerns
- 40–59: Mixed— Notable issues, research before buying
- 0–39: Risky— Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
Get notified when new recalls or reliability data is added for the BMW 4-Series.
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