Used 2023 Mercedes-Benz GLS for Sale near Illinois

How much does the 2023 Mercedes-Benz GLS cost?

Prices have softened 9.11% compared to this time last year, making it a favorable time to shop this model year.

There are 1,202 listings available, which suggests you have a solid pool of used GLS options to compare.

Is the 2023 Mercedes-Benz GLS a good car?

The 2023 Mercedes-Benz GLS stands out as the roomiest vehicle in the Mercedes-Benz lineup, with three rows of seating for six or seven people and up to 94 cubic feet of cargo space. It is aimed at families that want the comfort and space of a luxury sedan with some off-road capability, and it does that while still feeling distinctly upscale. The GLS also has a reputation for being comfortable, with premium interior materials and easy-to-use technology among its strengths.

For 2023, the GLS450 gained a panoramic moonroof and metallic paint as standard equipment. Standard equipment included dual 12.3-inch displays with MBUX, navigation, a Burmester surround sound stereo, wireless charging, and three years of Mercedes Me Connect services, along with power-folding third-row seats and power-adjustable second-row seats.

Market availability: 33.6% of listings are priced as good or great deals, so you have a meaningful chance to find a competitive offer.

Is the 2023 Mercedes-Benz GLS reliable?

The 2023 Mercedes-Benz GLS is described as comfortable, with premium interior materials and easy-to-use technology among its strengths. It also brings a broad mix of comfort, technology, and space that should appeal if you want a large, upscale three-row SUV.

For used buyers, long-term ownership risk is mainly about whether the vehicle has been maintained carefully, since a luxury SUV with this much equipment can become expensive if deferred maintenance stacks up.

What should I look for when buying a used 2023 Mercedes-Benz GLS?

Accident-free inventory is excellent at 90.8% — clean inventory, standard diligence applies.

You should still run a vehicle history report and verify that the listing matches the seller’s claims about ownership and service history. Prioritize a pre-purchase inspection, especially on the electronics, seating functions, and any features tied to the third row or power-folding seats. Focus on overall condition and signs of wear, since a luxury SUV like this can hide costly issues behind a polished presentation.

Is now a good time to buy a used 2023 Mercedes-Benz GLS?

This looks like a moderate market for selective buyers, with enough inventory and deal activity to reward careful shopping.

• Deal availability: 33.6% of listings are priced as good or great deals.
• Inventory: There are 1,202 listings available.
• Price trend: Prices have softened 9.11% compared with last year.
• Clean inventory: 90.8% of listings are accident-free.

If you find a listing below $65,255, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2023 Mercedes-Benz GLS's resale value?

The current average of $65,349 sits slightly below last year's $71,900.

That price movement suggests the market has cooled, which can help you buy more favorably today. For a future seller, it also means you should expect resale value to depend heavily on condition, mileage, and how well the vehicle has been maintained. If you keep the SUV clean and well documented, you’ll be in a stronger position when it’s time to sell.

Should I buy a 2023 Mercedes-Benz GLS or consider a different year?

If you're weighing the 2023 against nearby model years, here's how to think about it:

Choose the 2023 if:

• 33.6% of listings are priced as good or great deals.
• Accident-free inventory is excellent at 90.8% — clean inventory, standard diligence applies.
• Price trend: Prices have softened 9.11% compared with last year.

Consider the 2022 if:

• At $47,864, the 2022 costs less than the current year's $65,349 average.
• The 2022 emphasizes flagship luxury and utility with a spacious cabin.

Consider the 2024 if:

• At $72,596, the 2024 costs more than the current year's $65,349 average.
• The 2024 adds refreshed styling and more standard equipment.

The bottom line: The 2023 is the best all-around path if you want a roomy, upscale three-row SUV with a softer price than the newer model. If your priority is saving money, the 2022 is the better secondary path, while the 2024 makes sense if you want the newer updates and are willing to pay more.

These recommendations are based on CarGurus' proprietary market data from September 11, 2026, CarGurus experts' opinions, and generative AI.