Used 2021 Mercedes-Benz A-Class for Sale near Missouri

How much does the 2021 Mercedes-Benz A-Class cost?

Prices have softened 7.31% compared to this time last year, making it a favorable time to shop this model year.

There are 365 listings available, which gives you a modest amount of inventory to compare before you buy.

If you find a listing below $22,151.33, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2021 Mercedes-Benz A-Class a good car?

Yes — the 5/5 user rating points to strong owner satisfaction, and the expert rating is 7.83/10. The standout strength is Performance at 9/10.

The 2021 Mercedes-Benz A-Class is positioned as a small sedan that feels upscale and quick without giving up everyday usability. The expert review highlights its premium feel, modern interior, and strong technology, while also noting that the AMG A 35 version brings a more potent engine and sport suspension.

The main trade-offs are uninspired styling and poor value for money, and the transmission can be irritating. If you want a compact luxury sedan that prioritizes driving enjoyment and tech over bargain pricing, this model year fits that use case well.

25.2% of listings are marked as good or great deals, so there are still some attractive opportunities if you shop carefully.

Is the 2021 Mercedes-Benz A-Class reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction.

The A-Class is described as having a solid feel, and the expert review emphasizes its premium construction and well-executed cabin. The performance-oriented setup also suggests a car that was engineered with a clear focus on driving precision rather than just appearance.

Its AMG-prepared turbocharged engine, dual-clutch transmission, and all-wheel-drive system point to a sophisticated mechanical package, so maintenance history matters on the used market. For used buyers, the biggest long-term ownership risk is buying a neglected example with deferred service or hard use.

What should I look for when buying a used 2021 Mercedes-Benz A-Class?

At 72.9% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and then prioritize a pre-purchase inspection, especially on cars with higher mileage or visible cosmetic wear. Focus on condition consistency across the body, cabin, tires, brakes, and electronics, since this model leans heavily on premium features and complex systems. If you are considering an AMG A 35, pay extra attention to signs of hard driving and whether the car has been maintained on schedule.

Key things to evaluate:

• Trim level: The A 35 stands apart from the standard A-Class models with a more potent engine, sport suspension, all-wheel drive, and a more premium performance focus. The base A-Class setup is less aggressive, so you should compare equipment carefully if you want the sharper driving character.
• Powertrain: The AMG-prepared 2.0-liter turbocharged four-cylinder makes 302 horsepower and 295 pound-feet of torque, paired with a seven-speed dual-clutch automatic and 4Matic all-wheel drive. The non-AMG A 220 uses a 2.0-liter turbocharged inline-four with 188 hp and 221 lb-ft.
• Safety package: Standard equipment includes blind-spot assist, a rearview camera, LED headlights, LED taillights, an advanced airbag protection system, active brake assist, an electronic stability program, and emergency call service. The optional Driver Assistance Package adds adaptive cruise control, blind-spot monitoring, and lane-keep assist.
• Infotainment: The cabin centers on dual 10.25-inch displays, and the MBUX system supports voice control with “Hey, Mercedes.” Standard Apple CarPlay and Android Auto are included, along with Bluetooth hands-free and audio streaming.
• Fuel efficiency: The A 35 is rated at 22 mpg city/29 mpg highway/25 mpg combined.

Which 2021 Mercedes-Benz A-Class trim should I buy?

The 2021 Mercedes-Benz A-Class is offered in 3 trim levels: A 220 sedan, A 220 4Matic sedan, A 35 4Matic sedan.

Here's the short version:

• A 220 sedan: This is the entry point if you want the A-Class experience at the lowest cost. It gives you the core luxury-car feel, but you give up the extra performance and all-wheel-drive hardware that define the A 35.
• A 220 4Matic sedan: This is the better choice if you want added traction without stepping all the way up to the AMG model. It makes the lineup more versatile for everyday use while staying closer to the standard A-Class formula.
• A 35 4Matic sedan: This is the best-value trim if you care most about performance, standard equipment, and the most complete version of the car. It adds the stronger engine, sport suspension, and the most compelling driving character in the lineup.

The Driver Assistance Package is optional, so if safety tech matters to you, check whether a used example has it equipped.

Is now a good time to buy a used 2021 Mercedes-Benz A-Class?

This is a moderate market for selective buyers, with enough inventory to shop around but still some room to find a strong deal.

• Deal availability: 25.2% of listings are priced as good or great deals.
• Inventory: There are 365 listings available.
• Price trend: Prices have softened 7.31% compared with last year.
• Clean inventory: 72.9% of listings are accident-free.

If you find a listing below $22,151.33, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Mercedes-Benz A-Class's resale value?

The current average of $22,777 sits slightly below last year's $24,572.

That price movement suggests the market has already adjusted downward, which can help you buy at a more favorable point. For a future seller, the softer pricing means you should expect resale value to depend heavily on condition, mileage, and equipment. Well-kept examples with desirable features should hold up better than neglected cars, especially in a segment where buyers expect premium presentation.

Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Is the 2021 Mercedes-Benz A-Class safe?

It earns an 8/10 safety score from our experts.

Standard safety features include blind-spot assist, a rearview camera, LED headlights, LED taillights, an advanced airbag protection system, active brake assist, an electronic stability program, and emergency call service. The optional Driver Assistance Package adds adaptive cruise control, blind-spot monitoring, and lane-keep assist, among other features.

There are no released crash-test ratings from IIHS or NHTSA for this model year, so you should lean more heavily on the standard safety equipment and the availability of the driver-assistance package when evaluating a used example.

Should I buy a 2021 Mercedes-Benz A-Class or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 25.2% of listings are priced as good or great deals.
• At 72.9% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 7.31% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.
• The 2021 Mercedes-AMG A 35 4Matic sedan brings a more potent engine, sport suspension, all-wheel drive, and a Mercedes-estimated 4.6-second 0-60 mph time.

The bottom line: If you want the strongest blend of performance, premium feel, and modern tech, the 2021 is the one to target. If you are more price-sensitive, focus on the best-maintained example you can find and compare it carefully against other years only after checking equipment, condition, and accident history.

These recommendations are based on CarGurus' proprietary market data from August 28, 2026, CarGurus experts' opinions, and generative AI.