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2021 BMW 4 Series Overview, Reviews, Ratings & Specs

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Jovan | March 31, 2025
The 2021 BMW 4 Series marked the start of the second generation (G22) of this sporty coupe, convertible, and Gran Coupe (four-door coupe). Key trims included the 430i, 430i xDrive, M440i, and M440i xDrive. The pricing ranged from approximately $45,000 to $60,000+ depending on trim and options. Its bold styling, particularly the large kidney grilles, and its blend of performance and luxury made it a popular choice for those seeking a stylish and engaging driving experience.
The Good

The 2021 BMW 4 Series boasts strong performance from its turbocharged engines, offering a thrilling driving experience. While reliability can vary, BMW has generally improved. Comfort is excellent, with well-appointed interiors. Its striking design appeals to emotional buyers, while decent fuel efficiency and relative value for the luxury segment attract practical shoppers.

The Bad

The 2021 BMW 4 Series' controversial large kidney grilles aren't universally loved. Some find the ride firm, especially without adaptive dampers. Infotainment can have a steep learning curve. Watch out for potential electronic glitches and ensure proper maintenance, as repair costs can be high. Some users have reported issues with the iDrive system.

2021 BMW 4 Series: Quick Overview

  • Engine Options:
    • 430i/430i xDrive: 2.0-liter turbocharged inline-4
    • M440i/M440i xDrive: 3.0-liter turbocharged inline-6 with mild hybrid technology
  • Horsepower:
    • 430i/430i xDrive: 255 hp
    • M440i/M440i xDrive: 382 hp
  • Fuel Economy (EPA Estimated):
    • 430i: 26 mpg city / 34 mpg highway
    • 430i xDrive: 24 mpg city / 33 mpg highway
    • M440i: 25 mpg city / 34 mpg highway
    • M440i xDrive: 22 mpg city / 31 mpg highway
  • 0-60 Times:
    • 430i: Approximately 5.5 seconds
    • M440i: Approximately 4.3 seconds
  • Towing Capacity: Not typically a vehicle used for towing. Towing capacity is minimal and not recommended.
  • Trim-Level Features:
    • 430i (Base): LED headlights, 18-inch wheels, simulated leather upholstery, power front seats, 8.8-inch touchscreen, Apple CarPlay and Android Auto, forward collision warning, lane departure warning.
    • M440i: Includes 430i features plus a more powerful engine, M Sport suspension, M Sport brakes, aerodynamic kit, variable sport steering, 18-inch M wheels, and unique interior trim.
  • Optional Features: Premium Package (heated seats, heated steering wheel, head-up display), Driving Assistance Professional Package (adaptive cruise control, lane keep assist), Harman Kardon surround sound system, leather upholstery, adaptive M suspension.

2021 BMW 4 Series Specifications

Vehicle Information
Year 2021
Make BMW
Model 4-Series
Trim -
Style Cabriolet
Type Convertible
Category Subcompact Car
Manufacturing Details
Made In Germany
Manufacturing City DINGOLFING
Dimensions
Doors 2-Door
Curb Weight 1737.26 kg
Gross Vehicle Weight Rating -
Overall Height 139.19 cm
Overall Length 480.31 cm
Overall Width 188.72 cm
Wheelbase Length 285.75 cm
Standard Seating 4
Engine & Performance
Engine Twin Turbo Premium Unleaded I-6, 3.0-L
Engine Size 3L
Engine Cylinders 6
Transmission 6 Manual w/OD
Transmission Type Manual
Transmission Speeds 6-Speed
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $71,800 USD
Invoice Price -
Delivery Charges -

Vehicle History Report

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Market Price
Analysis

What Problems Does the 2021 BMW 4 Series Have?

The 2021 BMW 4 Series, being a relatively new model year, hasn't accumulated a long history of widespread, consistently reported problems. However, some owners have reported issues common to modern BMWs, including electronic glitches with the iDrive infotainment system (freezing, connectivity issues) and sensor malfunctions (parking sensors, driver-assistance features). There have been some reports of issues with the mild-hybrid system in the M440i variants, though these are not widespread.
While specific recalls for the 2021 model year might be limited at the time of launch, it's crucial to check the NHTSA (National Highway Traffic Safety Administration) website for the latest recall information. BMW, in general, has faced recalls related to fuel pump failures, electrical issues, and airbag malfunctions in other models, so it's essential to stay informed.
Long-term reliability hinges on proper maintenance. BMWs require specific fluids and adherence to the maintenance schedule. Neglecting this can lead to premature wear and expensive repairs. Oil leaks, cooling system issues, and problems with the turbocharger (particularly in the M440i) are potential long-term concerns if preventative maintenance is skipped. Some have reported issues with the adaptive suspension, if equipped, over time.

How long will the 2021 BMW 4 Series last?

With proper maintenance, a 2021 BMW 4 Series can realistically provide 150,000-200,000 miles or 10-12 years of service. However, reaching these figures heavily depends on consistent maintenance and responsible driving habits.
Long-term durability can be affected by the electronic complexity of the vehicle. Sensors, control modules, and the infotainment system are potential points of failure. The turbocharged engines, while powerful, require diligent oil changes to prevent sludge buildup. The cooling system is another area to monitor for leaks and component degradation over time. Neglecting these areas can significantly shorten the vehicle's lifespan.

What Technology & Safety Features are Included?

The 2021 BMW 4 Series boasts a comprehensive suite of tech, entertainment, driver-assistance, and safety features.
Built-in Tech & Entertainment: Standard features include an 8.8-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility. Higher trims and optional packages offer a larger 10.25-inch touchscreen, a Harman Kardon surround sound system, a head-up display, and wireless charging. The iDrive 7.0 system offers intuitive controls, customizable widgets, and over-the-air software updates.
Driver-Assistance: Standard safety features include forward collision warning with automatic emergency braking, lane departure warning, and speed limit information. Optional packages add features like adaptive cruise control, lane keep assist, blind-spot monitoring, rear cross-traffic alert, and parking assistant plus.
Safety Features: Multiple airbags (front, side, and curtain), stability control, and anti-lock brakes are standard.
Crash-Test Ratings: While specific crash-test ratings for the 2021 BMW 4 Series might vary depending on the testing organization (NHTSA, IIHS), BMW generally performs well in crash tests. It's recommended to check the latest ratings from these organizations for the most up-to-date information.
The optional Driving Assistance Professional Package provides a semi-autonomous driving experience on highways, making long journeys more comfortable and less stressful. However, it's crucial to remember that these systems are driver aids and not replacements for attentive driving.

What Colors Options are Available?

Exterior Colors
Alpine White
Black Sapphire Metallic
Arctic Race Blue Metallic
Portimao Blue Metallic
Tanzanite Blue II Metallic
San Remo Green Metallic
Brooklyn Grey Metallic
Dravit Grey Metallic
Sunset Orange Metallic
Mineral White Metallic
Individual Frozen Portimao Blue Metallic
Thundernight Metallic
Arkamisrot Metallic
Interior Colors
Cognac Vernasca Leather
Black SensaTec
Black Vernasca Leather
Oyster Vernasca Leather
Tacora Red Vernasca Leather
Mocha Vernasca Leather
Canberra Beige SensaTec

2021 BMW 4 Series Prices and Market Value

When new, the 2021 BMW 4 Series ranged from approximately $45,000 for a base 430i to $60,000+ for a fully equipped M440i. Current used market prices vary significantly based on mileage, condition, trim level, and location, but generally range from $35,000 to $50,000+.
The 4 Series depreciates at a rate similar to other luxury coupes. Factors affecting resale value include: mileage, condition (accident-free history is crucial), trim level (M440i models hold their value better), options (desirable packages like the Premium Package boost value), and overall market demand for luxury coupes. Cars with a well-documented service history command higher prices.

2021 BMW 4 Series Cost of Ownership

The 2021 BMW 4 Series is generally considered costly to own. Insurance premiums are higher than average due to its luxury status and performance capabilities. Fuel costs are moderate, depending on driving habits and engine choice. However, maintenance and repair costs can be significant. BMWs require specialized parts and labor, which contribute to higher bills. Long-term, budgeting for potential repairs, especially related to electronics and the turbocharger, is crucial. It's not an economical vehicle compared to mainstream brands.

2021 BMW 4 Series Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 59.05 liters
City Mileage 6.8 km/l
Highway Mileage 9.78 km/l

2021 BMW 4 Series Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating Not Tested
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Overall Side Star Rating Not Tested
Side Barrier Star Ratings Not Tested
Side Pole Star Rating Not Tested
Combined Side Barrier And Side Pole Star Ratings Not Tested
Rollover Resistance Star Rating Not Tested

2021 BMW 4 Series Recalls & Defects

Seat Belts
Recall date 2021-07-21
Recall no. 21v554000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2021 2 Series (230i, 230i Xdrive, M240i, M240i Xdrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i Xdrive, M440i Xdrive) M4 Coupe, M4 Competition Coupe, BMW 4 Series Convertible (430i, M440i), BMW X1 Sdrive28i, Xdrive28i, 2 Series Gran Coupe (228i, 228i Xdrive, M235i Xdrive), M2 Competition Coupe, 330i, 330i Xdrive, M340i, M340i Xdrive, M3, M3 Competition, 530i, 530i Xdrive, 540i, 540i Xdrive, Mini Hardtop 2 Door (cooper, Coopers, Jcw), X2 Sdrive28i, X2 Xdrive28i, X2 M35i, Z4 Sdrive30i, Z4 M40i, Mini Hardtop 2 Door (cooper Se), Mini Convertible (cooper, Cooper S, Jcw), Mini Clubman (cooper S, Cooper S All4, Jcw), Mini Countryman (cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), Rolls Royce Ghost, Mini Countryman (cooper S E All4), Rolls Royce Phantom, Rolls Royce Cullinan, and Toyota Supra Vehicles. THE Passenger Seat Belt Automatic Locking Retractor (alr) MAY Deactivate Early, Before THE Webbing Fully Retracts. AS Such, These Assemblies Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard Number 208, "occupant Crash Protection."
Consequence During A Crash, A Seat Belt Retractor That Does NOT Function AS Intended Increases THE Risk OF Injury.
Remedy Dealers Will Inspect THE Seat Belt Retractors (Including THE Seat Belts) And, IF Necessary, Replace THE Retractors, Free OF Charge. Owner Notification Letters Were Mailed ON September 3, 2021. Owners MAY Contact BMW Customer Service AT 1-800-525-7417; 1-866-825-1525 (Mini); 1-877-877-3735 (rolls Royce); and 1-888-270-9371 (toyota).
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.
AIR Bags:side/Window:thorax
Recall date 2021-03-15
Recall no. 21v176000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2021 430i and M440i 4 Series Convertible Vehicles. IN Certain Side-Impact Crashes, THE Head-Thorax AIR BAG MAY NOT Deploy AS Intended.
Consequence AN AIR BAG That Deploys Incorrectly CAN Increase THE Risk OF Injury IN A Crash.
Remedy Dealers Will Update THE Software, AT NO Charge. All Affected Vehicles ARE Still IN Dealer Inventory, and Therefore NO Owner Letters Will BE Mailed. THE Recall Began March 9, 2021. Owners MAY Contact BMW Customer Service AT 1-800-525-7417.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
AIR Bags:side/Window:head
Recall date 2021-03-15
Recall no. 21v176000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2021 430i and M440i 4 Series Convertible Vehicles. IN Certain Side-Impact Crashes, THE Head-Thorax AIR BAG MAY NOT Deploy AS Intended.
Consequence AN AIR BAG That Deploys Incorrectly CAN Increase THE Risk OF Injury IN A Crash.
Remedy Dealers Will Update THE Software, AT NO Charge. All Affected Vehicles ARE Still IN Dealer Inventory, and Therefore NO Owner Letters Will BE Mailed. THE Recall Began March 9, 2021. Owners MAY Contact BMW Customer Service AT 1-800-525-7417.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Back Over Prevention: Sensing System: Camera
Recall date 2021-02-19
Recall no. 21v096000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2019-2021 X3 Sdrive30i, X3 Xdrive30i, X3 M40i, X3m, X4 Xdrive30i, X4 M40i, M550i, X4m, X5 Sdrive40i, X5 Xdrive40i, X5 Xdrive50i, X5m, X5 M50i, X7 Xdrive40i, X7 Xdrive50i, X7 M50i, Alpina Xb7, 330i, 330i Xdrive, M340i, M340i Xdrive, and 8 Series Coupe, Convertible and Grand Coupe, 840i, 840i Xdrive, M850i Xdrive, M8, 2020-2021 530e, 530e Xdrive, 330e, 330e Xdrive, 745le, 745le Xdrive, X5 Xdrive45e, X3 Xdrive30e, X6 Sdrive40i, X6 Xdrive40i, X6 Xdrive50i, X6 M50i, X6m, 530i, 530i Xdrive, 540i, 540i Xdrive, M550i Xdrive, M5, 740i, 740li, 740li Xdrive, M760i Drive, M760li Xdrive, 750li Xdrive Alpina, Alpina B7 Xdrive, and 2021 4 Series Coupe 430i, 430i Xdrive, M440i Xdrive Vehicles. When Shifting Into Reverse, A Small Portion OF THE Rearview Image MAY BE Obscured, or THE Screen MAY NOT Illuminate. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard (Fmvss) Number 111, "rear Visibility."
Consequence IF THE Driver Relies ON Only THE Rearview Camera Image, THE Missing or Reduced Rearview Image View CAN Increase THE Risk OF A Crash or Injury.
Remedy BMW Will Notify Owners, and Dealers Will Inspect THE Rearview Camera Software and Update IT IF Necessary, Free OF Charge. THE Recall Began April 16, 2021. Owners MAY Contact BMW Customer Service AT 1-800-525-7417.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Back Over Prevention:software
Recall date 2021-02-19
Recall no. 21v096000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2019-2021 X3 Sdrive30i, X3 Xdrive30i, X3 M40i, X3m, X4 Xdrive30i, X4 M40i, M550i, X4m, X5 Sdrive40i, X5 Xdrive40i, X5 Xdrive50i, X5m, X5 M50i, X7 Xdrive40i, X7 Xdrive50i, X7 M50i, Alpina Xb7, 330i, 330i Xdrive, M340i, M340i Xdrive, and 8 Series Coupe, Convertible and Grand Coupe, 840i, 840i Xdrive, M850i Xdrive, M8, 2020-2021 530e, 530e Xdrive, 330e, 330e Xdrive, 745le, 745le Xdrive, X5 Xdrive45e, X3 Xdrive30e, X6 Sdrive40i, X6 Xdrive40i, X6 Xdrive50i, X6 M50i, X6m, 530i, 530i Xdrive, 540i, 540i Xdrive, M550i Xdrive, M5, 740i, 740li, 740li Xdrive, M760i Drive, M760li Xdrive, 750li Xdrive Alpina, Alpina B7 Xdrive, and 2021 4 Series Coupe 430i, 430i Xdrive, M440i Xdrive Vehicles. When Shifting Into Reverse, A Small Portion OF THE Rearview Image MAY BE Obscured, or THE Screen MAY NOT Illuminate. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard (Fmvss) Number 111, "rear Visibility."
Consequence IF THE Driver Relies ON Only THE Rearview Camera Image, THE Missing or Reduced Rearview Image View CAN Increase THE Risk OF A Crash or Injury.
Remedy BMW Will Notify Owners, and Dealers Will Inspect THE Rearview Camera Software and Update IT IF Necessary, Free OF Charge. THE Recall Began April 16, 2021. Owners MAY Contact BMW Customer Service AT 1-800-525-7417.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Seat Belts
Recall date 2023-08-16
Recall no. 23v584000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2019-2022 330i, 330i Xdrive, M340i, 2022 430i Coupe, 2021-2022 430i, M440i Convertible, and 2020-2022 228i Xdrive Gran Coupe Vehicles. THE Receiver Audio Module Control Unit Software MAY Fail TO Properly Generate Audible Seat Belt Warnings TO THE Driver TO Fasten Their Seat Belt. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard Number 208, "occupant Crash Protection."
Consequence AN Audible Chime That Does NOT Properly Alert THE Driver TO Fasten Their Seat Belt Increases THE Risk OF Injury IN A Crash.
Remedy Dealers Will Update THE Receiver Audio Module Software, Free OF Charge. Owner Notification Letters Were Mailed October 12, 2023. Owners MAY Contact BMW Customer Service AT 1-800-525-7417.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.
Electrical System:software
Recall date 2023-08-16
Recall no. 23v584000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2019-2022 330i, 330i Xdrive, M340i, 2022 430i Coupe, 2021-2022 430i, M440i Convertible, and 2020-2022 228i Xdrive Gran Coupe Vehicles. THE Receiver Audio Module Control Unit Software MAY Fail TO Properly Generate Audible Seat Belt Warnings TO THE Driver TO Fasten Their Seat Belt. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard Number 208, "occupant Crash Protection."
Consequence AN Audible Chime That Does NOT Properly Alert THE Driver TO Fasten Their Seat Belt Increases THE Risk OF Injury IN A Crash.
Remedy Dealers Will Update THE Receiver Audio Module Software, Free OF Charge. Owner Notification Letters Were Mailed October 12, 2023. Owners MAY Contact BMW Customer Service AT 1-800-525-7417.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.

2021 BMW 4 Series Warranty

Basic
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Corrosion
Original warranty 144 months / unlimited miles
Estimated remaining 96 months / unlimited miles
Drivetrain
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Maintenance
Original warranty 36 months / 36,000 miles
Estimated remaining Expired
Roadside Assistance
Original warranty 48 months / unlimited miles
Estimated remaining Expired

2021 BMW 4 Series Insurance

Insurance for a 2021 BMW 4 Series is moderately priced, reflecting its status as a Convertible with strong safety ratings and
reasonable repair costs.

How Does the 2021 BMW 4 Series Compare to Other Convertible?

The 2021 BMW 4 Series competes with the Audi A5/S5, Mercedes-Benz C-Class Coupe/Cabriolet, and Lexus RC.
Performance: The 4 Series offers a sporty driving experience, similar to the A5/S5 and C-Class. The M440i delivers strong performance comparable to the S5. The Lexus RC prioritizes comfort over outright performance.
Features: The 4 Series offers a comparable level of technology and features to its German rivals. The Lexus RC may feel slightly dated in terms of technology.
Reliability: BMW's reliability can be a concern. The Lexus RC generally enjoys a reputation for better reliability. Audi and Mercedes-Benz fall somewhere in between.
Price: The 4 Series is priced competitively within its class.
Alternatives:
  • Audi A5/S5: A good all-around choice with similar performance and features.
  • Mercedes-Benz C-Class Coupe/Cabriolet: Offers a more luxurious and refined experience.
  • Lexus RC: A comfortable and reliable option, but lacks the sporty edge of the German competitors.
  • Infiniti Q60: Offers a stylish design and powerful engine at a lower price point, but sacrifices some refinement.
Depending on individual priorities, the Audi A5/S5 or Mercedes-Benz C-Class Coupe/Cabriolet are similar alternatives. If reliability is a top concern, the Lexus RC might be a better choice, albeit with some compromises in driving dynamics.

Ranks #74 Convertible

1 2005 Toyota MR2 Spyder (0.0★)
2 2015 Lexus IS (0.0★)
3 2009 Honda S2000 (4.0★)
4 2023 Mazda MX-5 Miata RF (4.0★)
5 2023 BMW 8 Series (0.0★)
6 2021 Ford Mustang (5.0★)
7 2020 Mercedes-Benz SL-Class (0.0★)
8 2023 Audi S5 Sportback (0.0★)
9 2023 Ferrari F8 Spider (0.0★)
10 2023 Porsche 718 Boxster (4.0★)
11 2021 Jeep Compass (5.0★)
12 2019 Buick Cascada (0.0★)
74 2021 BMW 4 Series (0.0★)

Final Verdict: Is the 2021 BMW 4 Series a Good Convertible?

The 2021 BMW 4 Series is ideal for drivers who prioritize sporty performance, stylish design, and a luxurious interior. It's a good choice for those who enjoy driving and want a coupe or convertible that stands out.
Whether it's worth buying depends on your budget and priorities. Buying used can offer significant savings, but thorough inspection and service history are essential. The M440i trim is worth the upgrade for those seeking exhilarating performance. However, be prepared for potentially higher maintenance costs. If reliability is a primary concern, consider alternatives or factor in the cost of extended warranties. Overall, it's a desirable vehicle for the right buyer, but informed decision-making is crucial.

2021 BMW 4 Series Owner Reviews

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Jovan

Jovan specializes in interpreting vehicle records and making sense of VIN data. With over 10 years of experience in the automotive data industry, his work ensures that every report is clear, accurate, and useful for car buyers.