Last updated: 2026-10-10

RELIABILITY SCORE: 64/100 (GOOD)

2026 BMW 4 Series Reliability Report

The 2026 BMW 4-Series has a good reliability standing but trails other 2026 coupes, with four recalls and no owner complaints yet.

Full Breakdown Compare Models

Recalls

Complaints

Complaint Rate

N/A

Est. Repair Cost

$968

Annual Fuel Cost

$3,650–$3,850

Detailed Score Breakdown

Complaint SeverityN/A

Component-weighted complaints normalized by sales volume

Repair Costs60/100

Independent repair cost ratings

Recall Impact71/100

Recall count weighted by severity

Issue DiversityN/A

Breadth of reported problem categories

The Verdict

Consider

Middle of nine scored years, with four recalls covering exterior lighting, seat belts and the electrical system, and no owner complaints filed so far.

Should You Buy the 2026 BMW 4 Series?

Reliability standing is good, though the picture is mixed. Against other 2026 coupes, this 4-Series sits well below average. Across its own scored model years it lands in the middle of nine, and the 2025 rates better.

No owner complaints have been filed for this year, so there are no symptoms or mileage figures to report. That mostly reflects limited time on the road, not a clean record. Federal recall records show four recalls, covering exterior lighting, seat belts, and the electrical system, which accounts for two of them. Crash-test results are strong at 5 of 5 stars.

Before buying, run the VIN through federal recall records and confirm the work on all four recalls was completed, especially the seat belt and lighting ones. A 2025 is worth a look since it rates better, but it carries nine recalls and two complaints, so check its history the same way.

See also the 2025 BMW 4 Series for an earlier comparison.

Pros

+Acceptable reliability score
+Low complaint frequency
+5-star NHTSA crash rating

Cons

−Moderate recall count

Compare 2026 BMW 4 Series With

2026 Mercedes-Benz C-Class

Reliability: 82/100

Excellent

2026 Toyota Supra

Reliability: 78/100

Good

2026 Mercedes-Benz E-Class

Reliability: 76/100

Good

2026 BMW 5 Series

Reliability: 71/100

Good

Common Problem Categories

Safety

LOW RISK

4 manufacturer recalls issued

Recall Overview

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

complaints

LowAvgHigh

Very Low

Safety Incidents

Crashes

Fires

Injuries

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.

26V0640002026-02-04

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.

25V7170002025-10-21

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.

25V6430002025-09-25

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.

VIN History Report

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

Driver: 5/5Passenger: 5/5

Rollover risk: 9.2%

Safety Technologies

Dynamic Head Restraints (Not Available)Head Restraint (Driver, Front Passenger, 2nd row)Advanced Belt Feature (Not Available)Seat Belt Pretensioners (Driver, Front Passenger, 2nd row)Seat Belt Load Limiters (Driver, Front Passenger, 2nd row)Frontal Air Bag (Driver, Front Passenger)Head Protection (Driver, Front Passenger, 2nd row)Torso and/or Pelvis Protection (Driver, Front Passenger)Knee (Driver, Front Passenger)Additional Air Bags (Not Available)Meets Side Air Bag Out-of-Position Requirements (Info Not Available)Unattended Child Reminder Direct Sensing System (No)LATCH Locations (2nd row)Driver Monitoring System (Yes)Automatic High Beams (LED)

Gas / PHEV Powertrain

Rollover risk: 0.0%

Safety Technologies

PHEV Powertrain

Rollover risk: 0.0%

Safety Technologies

Dynamic Head Restraints (Not Available)Head Restraint (Driver, Front Passenger, 2nd row)Advanced Belt Feature (Not Available)Seat Belt Pretensioners (Driver, Front Passenger, 2nd row)Seat Belt Load Limiters (Driver, Front Passenger, 2nd row)Frontal Air Bag (Driver, Front Passenger)Head Protection (Driver, Front Passenger, 2nd row)Torso and/or Pelvis Protection (Driver, Front Passenger)Knee (Driver, Front Passenger)Additional Air Bags (Not Available)Meets Side Air Bag Out-of-Position Requirements (Info Not Available)Unattended Child Reminder Direct Sensing System (No)LATCH Locations (Not Available)Driver Monitoring System (Yes)Automatic High Beams (LED)

View full safety data on NHTSA.gov →

BMW 4 SeriesRepair Costs & Maintenance

Maintenance Rating

Based 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.

Common repair costs and price estimates
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

Best BMW 4 Series Years to Buy

Based on reliability index score

Top Pick

Good

BMW 4 Series Reliability Score Trend

Scores 0–100. Higher is better. Current year highlighted.

BMW 4 Series reliability scores by year
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
2026	64/100	Good

BMW 4 Series Reliability Compared to Other Years

Reliability scores compared across model years
Year	Score	vs Prior Year	Rating	Recalls	Complaints
2026(selected)	64/100	-3	Good	4	0
2025	67/100	+1	Good	9	2
2024	66/100	+3	Good	13	17
2023	63/100	-3	Good	26	43
2022	66/100	+9	Good	18	36
2021	57/100	+5	Mixed	40	64
2020	52/100	-3	Mixed	34	66
2019	55/100	+1	Mixed	17	90
2018	54/100	—	Mixed	21	261

2026 BMW 4 Series Reliability by Powertrain

The 2026 BMW 4 Series is available with 3powertrain options. Here's how they compare on reliability.

Reliability comparison across powertrain options
Powertrain	Recalls	Crash Rating
Gas	3	5 out of 5
Gas / PHEV	0	N/T
PHEV	1	N/T
Total	4

NHTSA tracks complaints by vehicle configuration when that detail is available. Model-level reports that do not identify a specific powertrain are included in Total but not assigned to a row. A plus sign indicates a confirmed minimum; — means no complaints could be attributed to that specific powertrain. 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

VisitorJan 22, 2026

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

VisitorJan 15, 2026

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

VisitorJan 4, 2026

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

VisitorNov 11, 2025

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

VisitorOct 22, 2025

Frequently Asked Questions

Is the 2026 BMW 4-Series reliable?

It has a good reliability standing, but it is well below average among 2026 coupes. Within the 4-Series line it ranks in the middle of nine scored years, and the 2025 rates better. No owner complaints are on file, though a new year has had little time to collect them.

What are the most common problems with the 2026 BMW 4-Series?

No owner complaints have been filed, so there is no common symptom to report yet. The recall records are the only problem data. They cover exterior lighting, seat belts, and the electrical system, which has two recalls. Check a specific car's VIN for open recalls.

How many recalls does the 2026 BMW 4-Series have?

Federal recall records list four recalls for this year. One involves exterior lighting, one involves seat belts, and two involve the electrical system. The data here does not describe the details, so look up the VIN to see which recalls apply and whether the repairs were done.

Is the 2025 BMW 4-Series more reliable than the 2026?

The 2025 rates better on reliability, and both years have a good standing. The 2025 has more history on record, with two complaints and nine recalls, against none and four for the 2026. Check recall completion on either car before you buy.

How safe is the 2026 BMW 4-Series in a crash?

It earns the top federal crash-test rating of 5 of 5 stars. Separately, one of its four recalls involves seat belts, so confirm through the VIN that any seat belt recall repair has been completed on the car you are considering.

Don’t buy a 2026 BMW 4 Series without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.

Look Up a VIN →

How we score the 2026 BMW 4 Series

Of the four inputs behind this score, the 2026 BMW 4 Series does best on recall impact (71/100) and worst on repair costs (60/100). Scores weight complaint severity at 35%, repair costs at 30%, recall impact at 20%, and the spread of complaints across systems at 15%, with complaint counts adjusted for US sales. Read the full methodology.

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