Used 2020 Mercedes-Benz GLC for Sale near Illinois

How much does the 2020 Mercedes-Benz GLC cost?

Prices have softened 8.93% compared to this time last year, making it a favorable time to shop this model year.

There are 1,911 listings available, which suggests you have a solid amount of inventory to compare.

Is the 2020 Mercedes-Benz GLC a good car?

Yes — the 2020 Mercedes-Benz GLC earns a 4.8/5 user rating and a 7.3/10 expert rating. The standout strength is Safety at 10/10.

Owners consistently praise its luxury features, comfort, and value for money, and they also like the quick acceleration and all-wheel-drive capability for winter driving. The GLC’s broad appeal comes through in its mix of premium cabin quality, technology, and multiple powertrain options, which fits the needs of suburban buyers well. The main trade-offs are the GLC 300’s performance and the cramped back seat, so you should weigh those against the model’s upscale feel and feature set. With 37.0% of listings marked as good or great deals, the market still offers some attractive opportunities.

Is the 2020 Mercedes-Benz GLC reliable?

Owners rate it 4.8/5, a strong signal of long-term satisfaction.

The owner feedback points to a vehicle that feels dependable enough to earn repeat praise for comfort, value, and all-wheel-drive confidence in winter driving. The expert evaluation also notes that the GLC’s updated powertrain no longer feels laggardly, which supports the sense that it can be a solid daily driver over time. The cost-effectiveness notes also highlight standard connected services for 3 years, which adds some ownership convenience. For used buyers, the main long-term risk is less about outright failure and more about making sure the specific example you choose has been maintained well and still feels tight and well sorted.

What should I look for when buying a used 2020 Mercedes-Benz GLC?

At 73.3% 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 close inspection of bodywork, panel alignment, and signs of prior repair. Because the model’s appeal depends heavily on its premium feel, you should also focus on interior condition, electronics, and how well the cabin features still operate. If possible, test the car on rougher pavement and at highway speeds to make sure it still feels composed.

Key things to evaluate:

• Trim level: The GLC 300 is the core trim, and it comes with standard MBUX, heated front seats, LED headlights, and a 10.3-inch touchscreen. The AMG versions add much more visual drama, while the Coupe body style changes the look and feel of the vehicle.
• Powertrain: The GLC 300 uses a turbocharged inline 4-cylinder engine with a 9-speed automatic, and it can be had with rear-wheel drive or 4Matic all-wheel drive. The performance notes say the engine is improved, but still not as refined as the BMW X3’s four-cylinder.
• Safety package: The standard safety setup includes forward emergency braking, Exit Warning Assist, Pre-Safe Sound, and Predictive Brake Priming. The 2020 model also adds Exit Warning Assist as a new standard feature.
• Infotainment: The GLC gets a standard 10.3-inch touchscreen, Apple CarPlay, Android Auto, USB-C ports, and an optional 12.3-inch display in the instrument cluster. Wireless device charging is optional, and the system also supports a cloud-based voice assistant.
• Fuel efficiency: The tested GLC 300 4Matic is rated at 21 mpg city, 28 highway, and 24 combined.

Which 2020 Mercedes-Benz GLC trim should I buy?

The 2020 Mercedes-Benz GLC is offered in 1 trim level: GLC 300.

Here's the short version:

The GLC 300 is the trim to focus on if you want the core GLC experience with the best balance of price and equipment. It brings the standard 10.3-inch touchscreen, heated front seats, LED headlights, and MBUX, so you get the major tech and comfort upgrades without moving into AMG pricing. It’s the best-value choice for most shoppers, especially if you want a premium SUV for suburban use rather than a performance-focused model.

Is now a good time to buy a used 2020 Mercedes-Benz GLC?

This is a moderate market for selective buyers, with enough inventory and deal activity to make shopping worthwhile.

• Deal availability: 37.0% of listings are priced as good or great deals.
• Inventory: There are 1,911 listings available.
• Price trend: Prices have softened 8.93% compared with last year.
• Clean inventory: 73.3% of listings are accident-free.

If you find a listing below $22,709, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 Mercedes-Benz GLC's resale value?

The current average of $22,709 sits slightly below last year's $24,935.

That price movement suggests the GLC has already absorbed some depreciation, which can help future sellers if the market stabilizes. If you buy at the right price and keep the vehicle in strong condition, you may have a better chance of limiting your loss when it’s time to sell. The model’s premium image and strong owner satisfaction can also help support demand on the used market.

Vehicles with strong owner satisfaction ratings, like this model year's 4.8/5, tend to retain buyer demand, which supports resale value over time.

Is the 2020 Mercedes-Benz GLC safe?

The GLC was named a 2019 Top Safety Pick+ by the Insurance Institute for Highway Safety (IIHS), and it scored the highest five-star rating in all crash tests from NHTSA.

It earns a 10/10 safety score from our experts.

The standard safety setup includes forward emergency braking, Exit Warning Assist, Pre-Safe Sound, and Predictive Brake Priming. Exit Warning Assist is a notable 2020 addition, using rear radar sensors to warn occupants about approaching cyclists or cars after shutdown. The safety story is especially strong here, and there isn’t a major caveat in the test results to offset that.

Should I buy a 2020 Mercedes-Benz GLC or consider a different year?

If you're weighing the 2020 against nearby model years, here's how to think about it:

Choose the 2020 if:

• 37.0% of listings are priced as good or great deals.
• At 73.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 8.93% compared with last year.
• Owners rate it 4.8/5 — a strong satisfaction signal.
• The 2020 adds a standard 10.3-inch touchscreen and Exit Warning Assist.

Consider the 2021 if:

• At $25,223, the 2021 costs more than the current year's $22,709 average.
• It adds a more polished overall package with advanced infotainment and safety technology.

The bottom line: If you want the better value, the 2020 is the smarter buy because it combines a lower average price with strong safety and solid owner satisfaction. If you’re willing to spend more for a newer model-year package, the 2021 is the better path for shoppers who want the latest iteration.

How does the 2020 Mercedes-Benz GLC compare to the 2020 BMW X3?

Read our full side-by-side expert comparison here.

These recommendations are based on CarGurus' proprietary market data from November 10, 2026, CarGurus experts' opinions, and generative AI.