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2021 BMW X4 Overview, Reviews, Ratings & Specs

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Eugene S | September 24, 2025
The 2021 BMW X4 is a "Sports Activity Coupe," a crossover SUV with a distinctive sloped roofline, based on the X3 platform. Introduced in 2014, the 2021 model belongs to the second generation (G02), which debuted in 2018. Key trims include the xDrive30i and the performance-oriented M40i, with new pricing ranging from approximately $52,000 to $65,000. It stands out for its bold, coupe-like design and sporty driving dynamics, appealing to those who desire style and performance over traditional SUV utility.
The Good

The 2021 X4 boasts strong performance with agile handling and potent engine options, appealing to emotional buyers seeking driving thrills. Its luxurious interior and striking coupe-like design offer premium comfort and style. Practical benefits include decent fuel efficiency for its class and BMW's expected long-term reliability with proper maintenance, making it a compelling package for both enthusiasts and those seeking a refined daily driver.

The Bad

The 2021 BMW X4's primary weaknesses include its compromised rear headroom and cargo space due to the sloped roofline, which limits practicality. The ride can be firm, especially with larger wheels or M Sport suspension. Rear visibility is also somewhat reduced. Furthermore, it carries a higher starting price than many traditional compact luxury SUVs.

2021 BMW X4: Quick Overview

  • Engine Options:
    - 2.0-liter TwinPower Turbo inline 4-cylinder (xDrive30i)
    - 3.0-liter M TwinPower Turbo inline 6-cylinder (M40i)

  • Horsepower:
    - xDrive30i: 248 hp
    - M40i: 382 hp

  • Fuel Economy (EPA estimated MPG city/highway):
    - xDrive30i: 23 city / 29 highway (26 combined)
    - M40i: 21 city / 27 highway (23 combined)

  • 0-60 mph Times:
    - xDrive30i: Approximately 6.2 seconds
    - M40i: Approximately 4.4 seconds

  • Towing Capacity:
    - Both xDrive30i and M40i are rated for up to 3,500 lbs when properly equipped with the optional trailer hitch.

  • Trim-Level Features:
    - xDrive30i: Standard features include a 10.25-inch iDrive infotainment system with navigation, Apple CarPlay and Android Auto compatibility, SensaTec upholstery, sport seats, power tailgate, LED headlights, panoramic moonroof, and Active Driving Assistant (lane departure warning, frontal collision warning with pedestrian detection, active blind spot detection, speed limit info). It comes with 19-inch wheels.
    - M40i: Builds upon the xDrive30i with the more powerful 6-cylinder engine, M Sport suspension, M Sport differential, M Sport brakes, variable sport steering, aggressive M aerodynamic body kit, upgraded 19-inch M wheels (20-inch and 21-inch optional), and enhanced interior details like an M-specific steering wheel. It also features a standard digital instrument cluster.

  • Optional Packages (across trims):
    - Executive Package: Includes features like a Head-up Display, gesture control, heated steering wheel, heated front/rear seats, and Parking Assistant Plus.
    - Driving Assistance Professional Package: Adds more advanced driver aids such as adaptive cruise control with stop-and-go, extended traffic jam assistant, and lane keeping assistant.
    - Various standalone options like leather upholstery, premium Harman Kardon sound system, adaptive M suspension, and specific M Sport styling upgrades are also available.

2021 BMW X4 Specifications

Vehicle Information
Year 2021
Make BMW
Model X4
Trim -
Style -
Type Sport Utility Vehicle
Category Standard Sport Utility Vehicle
Manufacturing Details
Made In United States
Manufacturing City GREER
Dimensions
Doors 4-Door
Curb Weight -
Gross Vehicle Weight Rating 6000 pounds
Overall Height 63.70 inches
Overall Length 187.50 inches
Overall Width 75.90 inches
Wheelbase Length 112.80 inches
Standard Seating 5
Engine & Performance
Engine 3.0-L L-6 DOHC 24V
Engine Size 3L
Engine Cylinders 6
Transmission 8-Speed Automatic
Transmission Type Automatic
Transmission Speeds 8-Speed
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $74,395
Invoice Price $69,755
Delivery Charges $995

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What Problems Does the 2021 BMW X4 Have?

As a relatively recent model, the 2021 BMW X4 does not yet have an extensive history of widespread, frequently reported problems. It benefits from being part of the second generation (G02), which generally received good marks for initial quality compared to some earlier BMW models. However, like many modern luxury vehicles, potential areas of concern tend to revolve around complex electronics and sophisticated systems.

Owners might occasionally report minor glitches with the iDrive infotainment system, such as occasional freezing or slow responsiveness, though these are often resolved with software updates. Sensor malfunctions, particularly those related to parking assist or driver-assistance features, can occur but are not common for this model year. Electrical issues, while not rampant, are a general watch-out for any luxury vehicle with extensive wiring and components as it ages.

For long-term reliability, common BMW traits apply. Expect higher maintenance costs compared to non-luxury brands. Turbocharged engines, while powerful, require diligent oil changes and can be susceptible to oil leaks or turbocharger issues if not properly cared for over time. Suspension components, especially adaptive M suspension systems, can be costly to repair or replace as they wear out. Regular preventative maintenance is key to mitigating these potential long-term concerns.

Regarding recalls, it is crucial for owners or prospective buyers to check the National Highway Traffic Safety Administration (NHTSA) website using the specific VIN. Recalls are typically issued for safety-related defects identified by the manufacturer or the agency. For example, some 2021 BMW models (not X4-specific, but applicable to shared platforms) had recalls related to potential fuel pump control unit issues or airbag inflator concerns, but these are vehicle-specific and should always be verified. To date, the 2021 X4 has had very few specific widespread recalls directly impacting its reliability for the majority of owners.

How long will the 2021 BMW X4 last?

With diligent maintenance, a 2021 BMW X4 can reliably serve its owner for 150,000 to 200,000 miles, or approximately 10 to 15 years. BMWs are generally well-engineered, but longevity largely hinges on adhering to recommended service schedules, using premium fuels, and addressing issues promptly. Long-term durability is strong for the engine and transmission if maintained. However, weaknesses over time often include potential for fluid leaks (oil, coolant), electronic component failures (iDrive screen, sensor modules), and wear on complex suspension parts. Turbocharged engines in both trims demand regular oil changes. Neglecting maintenance shortens its lifespan significantly, making it crucial for sustained reliability.

What Technology & Safety Features are Included?

The 2021 BMW X4 comes well-equipped with a sophisticated suite of technology and safety features. At its core is the iDrive 7.0 infotainment system, featuring a 10.25-inch touchscreen display, which is intuitive and responsive. Standard entertainment includes Apple CarPlay and Android Auto compatibility, navigation, Bluetooth, and a 12-speaker audio system. An optional Harman Kardon surround sound system significantly upgrades the audio experience.

For driver assistance, all 2021 X4 models include the Active Driving Assistant suite. This comprehensive package includes important safety features such as Lane Departure Warning, Frontal Collision Warning with City Collision Mitigation (which detects vehicles, pedestrians, and cyclists), Active Blind Spot Detection, and Speed Limit Info. Standard parking sensors (front and rear) and a rearview camera aid in maneuvering.

Optional advanced driver-assistance features can be bundled in the Driving Assistance Professional Package, which adds Adaptive Cruise Control with Stop & Go, an Extended Traffic Jam Assistant for semi-automated driving in specific conditions, and a Lane Keeping Assistant with side collision avoidance. Other optional tech includes a Head-up Display, Gesture Control for the infotainment system, a Surround View camera system, and an automatic Parking Assistant Plus, which can parallel and perpendicular park the vehicle.

In terms of passive safety, the X4 is built with a robust chassis and equipped with a full array of airbags. While the 2021 BMW X4 specifically did not undergo separate crash testing by the IIHS (Insurance Institute for Highway Safety) or NHTSA (National Highway Traffic Safety Administration), its mechanically similar sibling, the BMW X3, consistently earned top "Good" ratings in all IIHS crashworthiness tests and was designated a "Top Safety Pick." The NHTSA also typically awarded the X3 a 5-star overall safety rating. These ratings generally extend to the X4, given their shared platform and safety architecture, indicating very strong crash protection.

What Colors Options are Available?

We’re working on this section!
In the meantime, feel free to explore the other sections for more content.

2021 BMW X4 Prices and Market Value

When new, the 2021 BMW X4 xDrive30i started around $51,600, while the more powerful M40i began at approximately $62,400. Fully optioned, prices could climb well into the $70,000s. In the current used market (as of late 2023/early 2024), a 2021 X4 xDrive30i typically ranges from $35,000 to $45,000, and the M40i from $45,000 to $55,000, depending heavily on mileage, condition, and optional features. Depreciation for luxury SUVs like the X4 is moderate but significant in the first three years. Factors greatly affecting resale value include low mileage, pristine condition, desirable optional packages (e.g., Executive, M Sport), a clean vehicle history report, and consistent maintenance records. The M40i tends to hold its value slightly better due to its performance appeal.

2021 BMW X4 Cost of Ownership

The 2021 BMW X4 is generally considered a costly vehicle to own. Insurance premiums are typically higher due to its luxury, performance, and advanced technology. Both engine options require premium gasoline, contributing to elevated fuel costs. Maintenance and repair expenses are significantly above average; routine services (oil changes, inspections) are more expensive than mainstream brands, and parts and labor for unexpected repairs can be substantial. Expect annual maintenance to range from $1,000 to $2,000, excluding major repairs. Long-term ownership costs reflect its luxury status, making it far from an economical choice but consistent with BMW's premium positioning.

2021 BMW X4 Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 17.20 gallons
City Mileage 14 miles/gallon
Highway Mileage 19 miles/gallon

2021 BMW X4 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 X4 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 X4 Insurance

Insurance for a 2021 BMW X4 is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.

How Does the 2021 BMW X4 Compare to Other Sport Utility Vehicle?

The 2021 BMW X4 competes fiercely in the compact luxury "coupe SUV" segment, primarily against the Mercedes-Benz GLC Coupe, Audi Q5 Sportback, and to some extent, the Porsche Macan and Genesis GV70.

Performance: The X4 generally offers a sportier driving experience than the GLC Coupe and Q5 Sportback, especially in M40i trim, which delivers a more engaging feel and stronger acceleration. The Porsche Macan (especially GTS/Turbo trims) surpasses the X4 M40i in raw performance and handling prowess, but at a higher price point. The X4 strikes a good balance between sportiness and daily usability.

Features: Feature-wise, the X4 is highly competitive. Its iDrive infotainment system is intuitive, and standard driver-assistance features are robust. The GLC Coupe often boasts a more luxurious interior ambiance, while the Q5 Sportback's virtual cockpit is highly regarded. All offer comparable levels of luxury and technology, with BMW often leading in driving dynamics. The Genesis GV70 offers an incredible amount of features and luxury for its price, often undercutting the European rivals.

Reliability: Reliability for all these European luxury brands is generally considered good, though maintenance costs are higher than average. The X4, GLC Coupe, and Q5 Sportback typically rank similarly in reliability surveys. The Genesis GV70, being a newer player, is quickly establishing a strong reputation for reliability, often topping charts.

Price: The X4's pricing is competitive within its segment, sitting slightly above the Q5 Sportback but generally below the Porsche Macan. The GLC Coupe is usually priced similarly. The Genesis GV70 offers a compelling value proposition, providing similar luxury and performance at a lower entry price.

Alternatives:
- For a slightly softer ride and more traditional luxury, the Mercedes-Benz GLC Coupe is a strong alternative.
- If you prioritize technology and a refined cabin, the Audi Q5 Sportback is an excellent choice.
- For the ultimate in driving dynamics and a more premium feel, the Porsche Macan is superior, but it comes at a significant price premium.
- For those seeking excellent value, extensive features, and distinctive styling, the Genesis GV70 is a highly recommended and compelling alternative that often outperforms its price point.

Final Verdict: Is the 2021 BMW X4 a Good Sport Utility Vehicle?

The 2021 BMW X4 is ideal for buyers who prioritize distinctive styling and engaging driving dynamics over maximum utility. It appeals to singles, couples, or small families who appreciate a luxurious, performance-oriented SUV with a coupe-like aesthetic. It's less suited for those needing extensive rear headroom or cargo space.

Is it worth buying? Yes, but ideally as a used vehicle. Buying a 2-3 year old X4 significantly mitigates the initial depreciation hit, offering excellent luxury and performance value. Consider the xDrive30i for a balance of power and efficiency in daily driving, or the M40i if you crave exhilarating acceleration and sharper handling, and are prepared for slightly higher running costs.

Conditions for buying include having a budget for premium fuel, higher insurance, and BMW-specific maintenance. If style, sportiness, and a premium badge are paramount, and minor practicality compromises are acceptable, a well-maintained used 2021 X4 is a compelling choice.

2021 BMW X4 Owner Reviews

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Eugene S

Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.