The 2021 BMW 3 Series lasts around 200,000 miles, with some average coolant and window issues reported. At $29,250 to $51,399, it’s a good value for a small luxury car with average running costs as it ages.
Is the 2021 BMW 3 Series a Good Used Car?
- Overall Rating 8/10 – 2021 is a great year for the BMW 3 Series since it seamlessly mixes luxury and sports features. Owner reviews praise the powerful engines, comfortable cabin, and the stereo system.
- Interior, Comfort & Cargo 8/10 – Inferior materials are fairly luxurious for a small car, the seats offer great support on trips, and the cargo space is good for a sedan.
- Reliability 8/10 – There are no widespread complaints on the 2021 3 Series. Models older than 2010 have a lot of problems, while 2011–2022 are dependable choices.
- Performance 9/10 – The base models have reasonable power, while the M340i is very quick for a small sedan.
- Safety 9/10 – The 2021 3 Series is safe, earning a perfect 5-star rating in government crash tests. It comes standard with automatic emergency braking along with a rearview camera. Optional upgrades include lane keep assist and adaptive cruise control.
- Gas Mileage 8/10 – Fuel economy is good at up to 30 MPG, giving 468 miles of range from the 15.6 gallon tank. Gas costs are $11 cheaper than average at $178 per month.
- Value 8/10 – The 2021 BMW 3 Series is reasonably priced for a luxury sedan and has great features, making it a good overall value for shoppers.
Positive Owner Reviews
What Do Critics Say About the BMW 3 Series?
- Consumer Reports says the 2021 BMW 3 Series continues to be one of the best sport sedans on the market, with good owner satisfaction scores as it ages.
- Edmunds rates the BMW 3 Series at 4.7/5, enjoying the powerful engine choices, but doesn’t like the clunky driver assistance features.
- Kelley Blue Book users give the 3 Series a 4.2/5, praising the mix of sportiness and luxury, but owners don’t like that it doesn’t offer a manual transmission.
What Common Problems Does the 2021 BMW 3 Series Have?
Common problems found on the 2021 BMW 3 Series include a coolant leak, the window failing to roll down, and a frozen stereo system. Overall, these problems are similar to some other entry-level luxury cars on the market, leading to average repair costs as the 3 Series ages.
A coolant leak is the most serious complaint from some 2021 3 Series owners, showing up in the first 30,000 miles. Usually, the problem is caused by a damaged coolant line, which allows it to leak. Replacing the coolant line costs around $550, depending on local labor rates.
The window failing to roll down has also been mentioned within the first 10,000 miles. Usually the problem is caused by a damaged window regulator, which holds the glass in place. Replacing the window regulator is a fairly involved process, costing around $600 if it’s not covered under warranty.
A frozen stereo system also shows up on some 2021 3 Series models at around 1,000 miles. There are over-the-air software updates available for the stereo system, which improves reliability. If they don’t solve the problem, then dealerships can manually update the software for free.
There are seven recalls on the 2021 BMW 3 Series, which is worse than some other cars from the same year. The most serious recall covers the front seats, which may not be properly welded. BMW will replace the seats on affected models for free. Other recalls include the seat belt buckles, and rearview camera images. BMW will fix those issues for free, too.
How Long Will the 2021 BMW 3 Series Last?
A well-maintained 2021 BMW 3 Series can last around 200,000 miles, which is shorter than other small luxury cars like the Lexus IS. Regular annual maintenance costs are higher than some competitors, according to data provided by Repair Pal, at $728 per year.
As a used 2021 BMW 3 Series reaches 100,000 miles, and depending on the vehicle history report, owners should be prepared to replace the A/C temperature sensor for $145, vehicle speed sensor costing $225, along with the variable valve timing actuator, which costs around $550.
How Is the Technology?
The standard entertainment technology is great, and includes an 8.8-inch touchscreen with Apple CarPlay and Android Auto integration. Optional upgrades include a stronger Harman Kardon sound system.
Standard safety technology is very good, and features:
- Forward collision warning
- Lane-departure warning
- Rearview camera
- Forward automatic emergency braking
- Rain-sensing windshield wipers
Optional driver assistance features include:
- Blind spot monitoring
- Lane keep assist
- Head-up display
- Automatic parking assist
- Adaptive headlights
- Stop-and-go adaptive cruise control
- Rear cross-traffic alert
- Surround-view parking camera system
- Front and rear parking sensors
- Automatic high-beam headlights
Is the 2021 BMW 3 Series a Good Value?
Yes, the 2021 BMW 3 Series is a good value if you’re in the market for a compact luxury sedan with some decent performance features. The blue book fair purchase price ranges from $29,250 to $51,399, making it more than an Acura ILX or Volvo S60. When new, the price range was $41,250 to $56,700. Depreciation is similar to other luxury cars, losing about 12% of its current value per year.
What are the Different Models of the BMW 3 Series?
There are three main models of the 2021 BMW 3 Series offered from the entry-level 330i, through to the sportier M340i. The 3 Series comes standard with rear-wheel drive, while all-wheel drive is available as an optional upgrade. The high-performance M3 is covered in another review.
BMW 3 Series 330i is the entry-level model with:
Standard Features:
- 18-inch wheels
- LED headlights
- Sunroof
- Tri-zone automatic climate control
- Power-adjustable front seats
- Synthetic leather upholstery
- 8-inch touchscreen with navigation
- Apple CarPlay and Android Auto
- 10-speaker stereo system
- HD Radio
- Forward collision warning and automatic emergency braking
- Lane-departure warning
- Rearview camera
- Rain-sensing windshield wipers
- Universal garage door opener
- Moonroof
Notable Optional Features:
- Leather upholstery
- 16-speaker Harman Kardon surround-sound stereo
- Proximity keyless entry
- Premium package
- Ambient interior lighting
- Heated front and rear seats
- Heated steering wheel
- Convenience package
- 3-inch digital instrument cluster
- 25-inch touchscreen
- Infotainment gesture control
- Head-up display
- Automatic high-beam headlights
- Blind-spot monitoring
- Front and rear parking sensors
- Stop-and-go adaptive cruise control
- Lane-keep assist
- Rear cross-traffic alert
- Surround-view parking camera system
- Automatic parking assist
- M Sport differential
- Adaptive M suspension
- M Sport brakes
- Wireless device charging
- Wi-Fi hotspot
- Remote start
BMW 3 Series 330e is a more efficient version with:
Additional Features Over 330i:
- Plug-in-hybrid powertrain
- Satellite radio
- Automatic high-beam headlights
- 23 miles of estimated all-electric range (rear-wheel drive)
BMW 3 Series M340i is the flagship model with:
Enhanced Performance and Features:
- M Sport differential
- M Sport brakes
- Upgraded suspension
- M Sport steering wheel
- Upgraded driving modes
- Variable sport steering
- Adaptive headlights
- Satellite radio
- Proximity keyless entry
- Includes features of the M Sport and Dynamic Handling packages from the 330i (excluding adaptive suspension)
What Engines Come In the BMW 3 Series?
- The base model, the BMW 330i, comes equipped with a 2.0-liter turbocharged four-cylinder engine. This engine delivers 255 horsepower and 295 lb.-ft of torque. It’s paired with an eight-speed automatic transmission, achieving a combined fuel economy of 30 MPG. This setup allows the 330i to accelerate from 0 to 60 MPH in about 5.6 seconds.
- For those seeking more power, the BMW M340i features a 3.0-liter turbocharged inline-six engine. This engine produces a robust 382 horsepower and 369 lb.-ft of torque. It also uses an eight-speed automatic transmission and offers a combined fuel economy of around 25 MPG. The M340i can sprint from 0 to 60 MPH in just 4.4 seconds, providing a more exhilarating driving experience.
- Additionally, the 330e plug-in hybrid variant combines a 2.0-liter turbocharged four-cylinder engine with an electric motor. This combination results in a total system output of 288 horsepower and 310 lb.-ft of torque. The 330e has an eight-speed automatic transmission and boasts a combined fuel economy of about 75 MPGe, highlighting its efficiency. It can accelerate from 0 to 60 MPH in 5.6 seconds, offering a balance of power and environmental consciousness.
What Colors Does the BMW 3 Series Come In?
How Comfortable Is the BMW 3 Series?
The BMW 3 Series, renowned for its blend of luxury and performance, excels in offering a comfortable driving and passenger experience. The interior of the 3 Series is meticulously crafted with high-quality materials and thoughtful ergonomics, making sure that both driver and passengers are treated to a premium environment. The seats in the 3 Series are a particular highlight. They are designed with a superb balance of support and cushioning, which makes them comfortable for both short commutes and long-distance journeys. The front seats, often equipped with power adjustments and memory functions in higher trims, allow drivers of all sizes to find their ideal driving position with ease. Additionally, the availability of features like heated and ventilated seats adds to the overall comfort, especially in extreme weather conditions.
The ride quality in the BMW 3 Series is also great. Despite its reputation for sporty handling, the suspension is tuned to absorb road imperfections gracefully, providing a smooth ride even on less-than-ideal surfaces. This balance of agility and ride comfort means that the 3 Series is equally at home navigating tight city streets as it is cruising on the highway. Noise insulation is another area where the 3 Series excels. The cabin remains remarkably quiet, shielding occupants from road and wind noise, which contributes to a serene and relaxing environment.
Furthermore, the climate control system in the 3 Series is highly effective, maintaining a comfortable cabin environment regardless of external weather conditions. The layout of the controls and the intuitive infotainment system also contribute to overall comfort, as they allow easy adjustment of the car’s features without distraction or inconvenience. In summary, the BMW 3 Series offers a comprehensive comfort package, combining luxurious seating, a smooth and quiet ride, and user-friendly technology to create an exceptionally comfortable driving experience.
How Much Storage Space Does the BMW 3 Series Have?
The 2021 BMW 3 Series is a luxury sedan that skillfully balances performance with utility, offering a surprisingly spacious cargo area for its class. The trunk of the 2021 BMW 3 Series provides 17 cubic feet of cargo space. This volume is quite generous for a vehicle in the luxury small car segment, easily accommodating a range of items. For example, it’s ample enough to comfortably fit four to five medium-sized suitcases, making it ideal for airport runs or weekend getaways. Additionally, the space can easily handle a full load of groceries, several large backpacks, or golf bags, demonstrating its practicality for both daily errands and leisure activities.
Aside from the trunk, the 2021 BMW 3 Series also offers various small interior storage spaces that add to its practicality. The cabin features a range of well-thought-out compartments, including a reasonably sized glovebox, door pockets in both the front and rear that can hold small items like water bottles and notebooks, and a center console with a deep bin for storing personal items like wallets, phones, or small purses. Additionally, there’s a useful storage compartment under the front armrest, which is perfect for keeping valuables out of sight or storing electronic devices while charging. The rear-seat passengers haven’t been forgotten either, with pockets behind the front seats for magazines or tablets and a center armrest that includes cupholders.
What Are the Differences Between Years?
The seventh generation of the BMW 3 Series was launched in 2019, with all new styling and engine choices.
2015: Standard Bluetooth audio on all models, heated seats now available as a standalone option.
2016: Small changes to the exterior styling, interior updates, and the 335i model has been renamed to 340i.
2017: Standard M Sport package on all 340i models, optional upgrades include wireless charging and Apple CarPlay.
2018: Minor adjustments to the standard features and packages.
2019: Fully redesigned for the seventh generation with all new styling, technology, and engine choices.
2020: Six-cylinder engine added to the M340i model.
2021: Plug-in hybrid 330e model launched, wireless Android Auto added.
How Does the BMW 3 Series Compare to the Competition?
The 2021 BMW 3 Series is a great small luxury sports sedan since it offers a fun driving experience paired with a reasonably upscale cabin for the money.
The BMW 5 Series is a larger car offered by BMW, which costs around $3,500 more. Passenger room is better in the back seats of the BMW 5 Series, while the steering feels more nimble on the BMW 3 Series. We recommend the BMW 3 Series for most people unless you really need the extra room found in the 5 Series.
The Mercedes C Class is another luxury compact car, which is about $3,000 more. Interior materials are more luxurious in the Mercedes C Class, while the BMW 3 Series offers a sportier driving experience. We recommend the BMW 3 Series since the ownership costs are lower as it ages.
