Used Mercedes-Benz GLS for Sale nearMyrtle Beach, SC

How much does the Mercedes-Benz GLS cost in today's market?

Used Mercedes-Benz GLS prices span a wide range depending on model year. Here's what the market looks like right now:

The Mercedes-Benz GLS's current nationwide average price is $53,362, and its nationwide average price reached a low of $52,243 over the past year. Recently, prices have come down for the 2023, 2024, and 2025 models, making now a good time to shop recent model years.

Is the Mercedes-Benz GLS a good car?

Yes — the Mercedes-Benz GLS earns a strong overall recommendation from owners, especially if you want a large luxury SUV with a premium feel.

The all-generations owner rating is 4.69/5 across every model year in the data.

Owners consistently praise the GLS for its luxurious comfort, smooth ride, and impressive performance. They also highlight the high-quality craftsmanship and premium driving experience, along with the SUV’s strong sense of refinement. Common trade-offs include poor gas mileage, a higher price point, and a desire for more advanced technology.

Expert reviews rate the 2024 and 2021 models among the highest across all years.

The main trade-offs in recent expert reviews center on fuel economy, third-row access, and some technology and ergonomics frustrations.

36.2% of listings are priced as good or great deals.

Are Mercedes-Benz GLS models reliable?

Owners consistently describe the GLS as a comfortable, luxurious SUV with strong performance and a premium driving feel. Expert reviews also reinforce its appeal through its refined ride, solid dynamics, and high-quality cabin presentation.

• Owners rate the Mercedes-Benz GLS between 4.5 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk is shaped more by upkeep costs and the complexity of luxury features than by the GLS’s core appeal.

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

Across all model years, accident-free inventory is solid at 84.2% — always verify the vehicle history report.

Older model years carry meaningfully higher accident rates, so always verify the vehicle history report on pre-2021 models.

Key things to evaluate:

• Safety package: Nearly 40 safety and driver-assistance systems, including Mercedes’ innovative Pre-Safe, Crosswind Assist, and Active Emergency Stop Assist technologies.
• Infotainment: MBUX infotainment with wireless Apple CarPlay and Android Auto and a navigation system with augmented reality enhancement.
• Fuel efficiency: It’s EPA-rated at 21 mpg combined, but with the standard Dynamic Select system in the Comfort driving mode for most of the test-drive, we observed 19.4 mpg on our mountainous Southern California evaluation route.

Which Mercedes-Benz GLS trim should I buy?

The 2026 Mercedes-Benz GLS offers these trims:

• GLS 450: The base version brings the turbocharged 3.0-liter inline-six with mild-hybrid assist, 375 horsepower, standard 4Matic AWD, a nine-speed automatic, Airmatic adaptive suspension, dual 12.3-inch displays, MBUX, wireless Apple CarPlay and Android Auto, and a long list of standard safety systems. It’s the best-value choice for most buyers who want the GLS experience without chasing extras.
• GLS 580: This trim adds more power and a higher-output luxury feel for buyers who want stronger performance and more upscale presence.
• AMG GLS 63: The performance-focused version adds AMG character and the most aggressive driving setup in the lineup.
• Maybach GLS 600: The most opulent version adds the highest level of luxury and exclusivity, including the most lavish cabin treatment.

What Mercedes-Benz GLS do most buyers choose?

The Mercedes-Benz GLS years with the most listings are 2025, 2024, and 2023.

Those higher-volume years tend to be the easiest places to shop because you get more inventory to compare and more chances to find the right trim, color, and price. They also tend to attract buyers who want newer features while still shopping the used market.

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

The GLS shows broad year-over-year price declines across the lineup, which can work in your favor if you’re shopping used. The newer model years are also seeing double-digit drops, so recent inventory can offer meaningful savings versus prior-year pricing. The smallest changes are concentrated among the older and newest years in the table.

The 2017, 2023, and 2025 model years have held their value best, with the smallest year-over-year price changes.

Is the Mercedes-Benz GLS safe?

• 2026: 7/10
• 2024: 10/10
• 2022: 6/10
• 2021: 9/10

Nearly 40 safety and driver-assistance systems appear on the 2026 GLS’ standard equipment list, including Mercedes’ innovative Pre-Safe, Crosswind Assist, and Active Emergency Stop Assist technologies.

For the safest used buy, the 2024 model posts the highest confirmed score of 10/10.

Should I buy a used Mercedes-Benz GLS now or wait for the next model?

Buy now if:

• Price trend: The 2025 model is at −11.48% versus a year ago, and the 2024 model is at −11.49%.
• Deal availability: The 2025 model has 35.8% good and great deals, and the 2024 model has 36.1%.
• Sweet-spot year: The 2025 model has the most listings at a current average price of $79,204. The Mercedes-Benz GLS offers a quiet, comfortable cabin with a spacious three-row layout and a premium driving feel.

Consider waiting if:

• Powertrain/efficiency: A turbocharged 3.0-liter inline-six provides the 2026 GLS 450’s motive force, with a bit of mild-hybrid assist. The powertrain supplies 375 horsepower and 369 pound-feet of torque, and is coupled with a nine-speed automatic transmission and standard 4Matic all-wheel-drive (AWD), accelerating the GLS 450 0-60 mph in a manufacturer-estimated 5.8 seconds.
• Tech: Wireless Apple CarPlay and Android Auto and a navigation system with augmented reality enhancement are standard, and online music access is part of the Mercedes-Benz Digital Extras connected services.
• Safety: Nearly 40 safety and driver-assistance systems appear on the 2026 GLS’ standard equipment list, including Mercedes’ innovative Pre-Safe, Crosswind Assist, and Active Emergency Stop Assist technologies.
• Starting price: Prices range from $91,600 to $181,350, including the very reasonable $1,350 destination charge for this Alabama-built SUV.

If you're buying used today, the 2025 model year offers the best mix of value and availability. If you want the latest tech and features, it may be worth waiting for the next model year's inventory to build up.

These recommendations are based on CarGurus' proprietary market data from September 29, 2026, CarGurus experts' opinions, and generative AI.