Used Mercedes-Benz GLS for Sale nearMcAllen, TX

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 $53,542, and its nationwide average price reached a low of $52,224 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 is a strong choice if you want a luxury three-row SUV with a comfortable ride, premium cabin, and impressive performance.

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 strong performance. Reviewers also repeatedly highlight the high-quality craftsmanship and premium driving experience, along with the spacious, family-friendly character that makes it feel especially upscale.

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

The main trade-offs across recent expert-tested years center on fuel economy, third-row access, and touch-sensitive controls.

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, premium SUV with strong performance and a refined driving experience. Expert reviews also reinforce its luxury-first character, especially its quiet cabin, composed ride, and solid dynamics.

• 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 owner satisfaction.

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: 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 a turbocharged 3.0-liter inline-six with mild-hybrid assist, 375 horsepower, 369 pound-feet of torque, a nine-speed automatic transmission, standard 4Matic AWD, and standard Airmatic adaptive suspension. It also includes dual 12.3-inch displays, MBUX, wireless Apple CarPlay and Android Auto, a navigation system with augmented reality enhancement, and a standard Burmester surround-sound system.
• GLS 580: This higher-output version adds more power for buyers who want stronger performance while keeping the GLS’s luxury, comfort, and technology focus.
• AMG GLS 63: This performance-oriented trim adds the most aggressive power and sport-focused character in the lineup.
• Maybach GLS 600: This is the most opulent choice, with the highest level of exclusivity and luxury appointments.

What Mercedes-Benz GLS do most buyers choose?

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

These higher-volume years tend to be popular because they give you a broad mix of availability, pricing, and equipment. They also sit close to the sweet spot where you can find newer features without moving all the way to the newest model year.

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

The table shows broad downward movement across every listed model year, which is good news if you’re shopping used. Several years are posting double-digit declines, so you can find meaningful savings versus a year ago. The smallest drops are still negative, which means values are easing across the lineup rather than holding steady.

The 2023, 2021, and 2017 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 −11.02% versus a year ago, and the 2024 model is at −11.72%.
• Deal availability: The 2025 model has 36.8% good and great deals, and the 2024 model has 37.2%.
• Sweet-spot year: The 2025 model has the most listings at a current average price of $79,907. The Mercedes-Benz GLS offers a quiet, comfortable cabin with a spacious three-row layout and a refined luxury feel.

Consider waiting if:

• Powertrain/efficiency: A turbocharged 3.0-liter inline-six provides the 2026 GLS 450’s motive force, with 375 horsepower and 369 pound-feet of torque, and it’s EPA-rated at 21 mpg combined.
• Tech: Wireless Apple CarPlay and Android Auto and a navigation system with augmented reality enhancement are standard.
• 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.

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 15, 2026, CarGurus experts' opinions, and generative AI.