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2021 BMW 3-Series Overview, Reviews, Ratings & Specs

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Drew B | September 25, 2025
The BMW 3-Series, a cornerstone of the compact executive sedan segment, has been a benchmark for decades. The 2021 model continues this legacy. Available as a sedan, its model years extend back to the mid-1970s. Key trims include the 330i, 330e (plug-in hybrid), and the M340i. Pricing ranged approximately from $42,000 to $57,000 when new. It stands out due to its blend of sporty handling, luxurious interior, and advanced technology, making it a popular choice for driving enthusiasts and those seeking a premium experience.
The Good

The 2021 BMW 3-Series offers a compelling blend of performance and practicality. Its precise handling and powerful engine options cater to emotional buyers seeking a thrilling driving experience. Simultaneously, its comfortable interior, decent fuel efficiency, and reputation for reliability appeal to practical buyers who value a refined and dependable daily driver. The stylish design further enhances its appeal.

The Bad

Potential weaknesses in the 2021 BMW 3-Series include higher maintenance costs compared to non-luxury brands. The iDrive infotainment system, while feature-rich, can have a steep learning curve for some users. Some owners have reported minor electrical glitches. Watch out for potential issues with the cooling system and oil leaks as the car ages. The ride can feel firm on rough roads, especially with the sport suspension.

2021 BMW 3-Series: Quick Overview

  • Engine Options:
    • 2.0L Turbocharged Inline-4 (330i): This engine delivers a balance of performance and efficiency.
    • 2.0L Turbocharged Inline-4 with Electric Motor (330e): A plug-in hybrid powertrain for increased efficiency and electric driving range.
    • 3.0L Turbocharged Inline-6 (M340i): Offers significantly more power for a sportier driving experience.
  • Horsepower:
    • 330i: 255 hp
    • 330e: 288 hp (combined)
    • M340i: 382 hp
  • Fuel Economy (EPA Estimated):
    • 330i: 26 mpg city / 36 mpg highway
    • 330e: 28 mpg combined / 22 miles electric range
    • M340i: 23 mpg city / 32 mpg highway
  • 0-60 Times:
    • 330i: 5.6 seconds
    • 330e: 5.6 seconds
    • M340i: 4.4 seconds
  • Towing Capacity:
    • Not recommended for towing in the US market. In some international markets, a limited towing capacity is specified.
  • Trim-Level Features:
    • 330i (Base): Includes features such as LED headlights, SensaTec upholstery, an 8.8-inch touchscreen infotainment system, Apple CarPlay and Android Auto compatibility, and a suite of driver-assistance features like forward collision warning.
    • 330e: Adds the plug-in hybrid powertrain, pre-conditioning functions, and specific hybrid drive modes.
    • M340i: Upgrades to a more powerful engine, M Sport suspension, M Sport brakes, aerodynamic body kit, variable sport steering, and upgraded interior trim.
    • Optional Packages: Various packages are available, including the Premium Package (adds features like heated seats and a head-up display), the Convenience Package (adds features like keyless entry and a power trunk lid), and the Driver Assistance Professional Package (adds advanced driver-assistance features like adaptive cruise control and lane keeping assist). Also available is the M Sport Package on the 330i and 330e, which provides similar styling and performance enhancements to the M340i, albeit with the standard engine.

2021 BMW 3-Series Specifications

Vehicle Information
Year 2021
Make BMW
Model 3-Series
Trim -
Style Sedan Rear-Wheel Drive
Type Sedan
Category Minicompact Car
Manufacturing Details
Made In Germany
Manufacturing City MUNICH
Dimensions
Doors 4-Door
Curb Weight -
Gross Vehicle Weight Rating 6000 pounds
Overall Height 56.90 inches
Overall Length 185.70 inches
Overall Width 71.90 inches
Wheelbase Length 112.20 inches
Standard Seating 5
Engine & Performance
Engine 2.0-L I4
Engine Size 2L
Engine Cylinders 4
Transmission 8-Speed Automatic
Transmission Type Automatic
Transmission Speeds 8-Speed
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $45,545
Invoice Price $42,925
Delivery Charges $995

Vehicle History Report

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Analysis

What Problems Does the 2021 BMW 3-Series Have?

The 2021 BMW 3-Series generally enjoys good reliability, but some issues have been reported. Common concerns include minor electrical glitches, such as issues with the infotainment system or sensor malfunctions. Some owners have also reported problems with the cooling system, including coolant leaks and thermostat failures. Oil leaks, particularly around the valve cover gasket, are another potential area to monitor as the car ages. While not widespread, some reports of issues with the turbocharger system have surfaced, mainly on higher-mileage vehicles. Regarding recalls, it's essential to check the National Highway Traffic Safety Administration (NHTSA) website for any specific recalls affecting the 2021 model year. Long-term reliability concerns typically revolve around the increased complexity of modern BMWs, which can lead to higher repair costs as they age. Preventative maintenance, such as regular oil changes and fluid checks, is crucial for mitigating potential problems. Specific to the 330e plug-in hybrid, battery life and performance may degrade over time, impacting electric range. The 2021 model year doesn't stand out as having significantly different reported problems compared to similar years in the G20 generation, but staying informed about potential issues is always advisable for any vehicle.

How long will the 2021 BMW 3-Series last?

With consistent maintenance, a 2021 BMW 3-Series can realistically provide 150,000 to 200,000 miles or 10-15 years of service. Proper maintenance habits, including timely oil changes, fluid flushes, and addressing issues promptly, are critical. Long-term durability often depends on climate and driving conditions. Weaknesses over time can include wear and tear on suspension components, potential for increased oil leaks, and the gradual degradation of rubber and plastic parts. Models with more complex systems, like the 330e, may require more specialized maintenance over the long haul. Regular inspections can help identify and address issues early, maximizing the vehicle's lifespan.

What Technology & Safety Features are Included?

The 2021 BMW 3-Series boasts a comprehensive suite of technology, entertainment, driver-assistance, and safety features. Standard features include an 8.8-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, Bluetooth connectivity, and a 10-speaker audio system. Optional upgrades include a larger 10.25-inch touchscreen, a 12.3-inch digital instrument cluster, a premium Harman Kardon sound system, and a Wi-Fi hotspot. Driver-assistance features include standard forward collision warning with automatic emergency braking, lane departure warning, and automatic high beams. Optional features include adaptive cruise control, lane keeping assist, blind-spot monitoring, and parking assist. Safety features encompass multiple airbags, stability control, and anti-lock brakes. The IIHS (Insurance Institute for Highway Safety) awarded the 2021 3-Series a "Top Safety Pick+" designation, indicating excellent crash-test performance. The NHTSA (National Highway Traffic Safety Administration) also gave it a 5-star overall safety rating. The iDrive 7.0 infotainment system is responsive but can take time to master. The optional head-up display projects key information onto the windshield, enhancing the driving experience. Overall, the 2021 3-Series offers a well-rounded and technologically advanced package.

What Colors Options are Available?

Exterior Colors
Alpine White
Black Sapphire Metallic
Mineral Grey Metallic
Mediterranean Blue Metallic
Sunset Orange Metallic
Portimao Blue Metallic
Dravit Grey Metallic
Tanzanite Blue II Metallic
Melbourne Red Metallic
Glacier Silver Metallic
Dark Graphite Metallic
Shadow Metallic
Interior Colors
Cognac Vernasca Leather
Black SensaTec
Black Vernasca Leather
Oyster Vernasca Leather
Tacora Red Vernasca Leather
Canberra Beige SensaTec
Ivory White Vernasca Leather
Black with Blue contrast stitching SensaTec

2021 BMW 3-Series Prices and Market Value

When new, the 2021 BMW 3-Series ranged from approximately $42,000 for the base 330i to $57,000+ for a fully equipped M340i. Used market prices vary widely based on mileage, condition, and trim, generally ranging from $30,000 to $45,000. The 3-Series depreciates at a moderate rate, typical for a luxury vehicle. Factors affecting resale value include mileage, condition, service history, and options. M Sport packages and desirable color combinations tend to hold their value better. Maintaining a clean title and documented service history are crucial for maximizing resale value. Demand for used luxury sedans also influences pricing.

2021 BMW 3-Series Cost of Ownership

The 2021 BMW 3-Series is generally considered costly to own compared to non-luxury vehicles. Insurance premiums are higher due to the vehicle's value and performance capabilities. Fuel costs are moderate, but premium fuel is recommended. Maintenance and repair costs can be significant, especially for specialized components. Regular servicing at a BMW dealership or qualified independent mechanic is recommended. Long-term ownership costs are influenced by driving habits and maintenance diligence. While not economical, the driving experience and luxury features justify the expense for many owners.

2021 BMW 3-Series Fuel Efficiency

Fuel Type Hybrid
Fuel Capacity 28 gallons
City Mileage 72 miles/gallon
Highway Mileage 80 miles/gallon

2021 BMW 3-Series Safety Rating

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

2021 BMW 3-Series Recalls & Defects

Electrical System:12v/24v/48v Battery
Recall date 2020-08-18
Recall no. 20v490000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2021 330e and X5 Xdrive45e, 2020-2021 X3 Xdrive30e, and 2020 Mini Countryman SE All4 Vehicles. Loose Welding Beads MAY Form A Conductive Path Between THE Hybrid Battery Cells Which Could Lead TO A Short-Circuit.
Consequence A Short-Circuited Hybrid Battery MAY Increase THE Risk OF A Fire.
Remedy BMW Will Notify Owners, and Dealers Will Inspect And, IF Necessary, Replace THE Battery Modules, Free OF Charge. BMW Issued Owners AN Interim Notification ON October 16, 2020. Although Potentially Affected BMW Owners Received Interim Owner Notification Letters, All Potentially Affected BMW Owner Vehicles Have Been Remedied; Therefore, BMW Final Owner Notification Letters Will NOT BE Necessary. 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.
Electrical System:propulsion System:traction Battery
Recall date 2020-08-18
Recall no. 20v490000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2021 330e and X5 Xdrive45e, 2020-2021 X3 Xdrive30e, and 2020 Mini Countryman SE All4 Vehicles. Loose Welding Beads MAY Form A Conductive Path Between THE Hybrid Battery Cells Which Could Lead TO A Short-Circuit.
Consequence A Short-Circuited Hybrid Battery MAY Increase THE Risk OF A Fire.
Remedy BMW Will Notify Owners, and Dealers Will Inspect And, IF Necessary, Replace THE Battery Modules, Free OF Charge. BMW Issued Owners AN Interim Notification ON October 16, 2020. Although Potentially Affected BMW Owners Received Interim Owner Notification Letters, All Potentially Affected BMW Owner Vehicles Have Been Remedied; Therefore, BMW Final Owner Notification Letters Will NOT BE Necessary. 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 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.
Electrical System:propulsion System:traction Battery
Recall date 2020-09-30
Recall no. 20v601000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2020-2021 530e, 530e Xdrive, 530e Iperformance and X3 Xdrive30e and Mini Cooper Countryman All4 SE, 2020 BMW I8, and 2021 330e, 330e Xdrive, 745le Xdrive and X5 Xdrive45e Vehicles. Debris MAY Have Entered ONE or More OF THE Hybrid Battery Cells During Their Production.
Consequence THE Debris Could Result IN A Short-Circuit, Increasing THE Risk OF Fire or Injury.
Remedy BMW Will Inspect And, IF Necessary, Replace THE Battery Module Free OF Charge. THE Remedy IS Currently Being Developed. Until THE Remedy IS Completed, Drivers ARE Instructed TO NOT Charge Their Vehicles. Drivers ARE Instructed TO NOT Drive IN Manual Mode, Sport Mode, and TO NOT USE THE Shift Paddles. Owners Were Notified OF THE Safety Risk October 23, 2020. THE Recall Began November 24, 2020. 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:front:buckle Assembly
Recall date 2021-04-28
Recall no. 21v298000
Source NHTSA
Summary BMW OF North America, LLC (Bmw) IS Recalling Certain 2021 330i, 330i Xdrive, M340i, M3, and 330e Xdrive Vehicles. THE Bolt Securing THE Seat Belt Assembly TO THE Frame WAS NOT Tightened TO Specification.
Consequence AN Improperly Installed Seat Belt Assembly MAY NOT Restrain AN Occupant AS Expected, Increasing THE Risk OF Injury.
Remedy BMW Will Notify Owners, and Dealers Will Inspect THE Front Seat Belt Buckle Assembly Connection And, IF Necessary, Replace IT, Free OF Charge. Owner Notification Letters Were Mailed ON June 25, 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.

2021 BMW 3-Series Warranty

Basic
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Powertrain
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Rust
Original warranty 144 months / unlimited miles
Estimated remaining 96 months / unlimited miles

2021 BMW 3-Series Insurance

Insurance for a 2021 BMW 3-Series is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.

How Does the 2021 BMW 3-Series Compare to Other Sedan?

The 2021 BMW 3-Series competes with the Mercedes-Benz C-Class, Audi A4, Lexus IS, and Genesis G70. In terms of performance, the 3-Series excels with its sharp handling and powerful engine options, often considered sportier than the C-Class. The A4 offers a similar level of technology and refinement. Features are comparable across the board, with each offering advanced infotainment systems and driver-assistance features. Reliability can be a mixed bag; the Lexus IS is generally considered more reliable, while the C-Class can sometimes have more issues. The Genesis G70 offers similar performance and features at a slightly lower price point. The 3-Series' price is competitive within its class, but slightly higher than the G70. For those prioritizing reliability, the Lexus IS is a strong alternative. If value is a primary concern, the Genesis G70 provides similar luxury and performance for less. The Mercedes-Benz C-Class provides similar luxury, but a different driving experience. The Audi A4 is a good alternative blending technology, luxury, and performance. Ultimately, the best choice depends on individual priorities and preferences.

Final Verdict: Is the 2021 BMW 3-Series a Good Sedan?

The 2021 BMW 3-Series is ideal for drivers seeking a balance of sporty performance, luxury, and technology in a compact sedan. It's worth buying if you appreciate the BMW driving experience and are willing to accept the associated ownership costs. A used 2021 model can offer good value, especially if you find one with low mileage and a comprehensive service history. The M340i is the trim to choose for maximum performance, while the 330i provides a more economical option. Consider a certified pre-owned model for added peace of mind. If reliability is a top priority, thoroughly inspect any used model and research its maintenance history or consider the Lexus IS as an alternative.

2021 BMW 3-Series Owner Reviews

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Drew B

Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma