Used Mercedes-Benz GLS for Sale near Connecticut

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 $53,276, and its nationwide average price reached a low of $52,253 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 pick if you want a luxury three-row SUV with broad owner appeal and a premium driving experience. 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 cabin feel, along with the strong engine choices that make it feel especially refined on the road.

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

The main trade-offs are fuel economy, third-row access, and interior packaging, and some expert reviews also point to technology controls that can take some getting used to. Even so, the GLS remains a compelling used luxury SUV if you value comfort, space, and a polished overall character.

38.2% of listings are priced as good or great deals.

Are Mercedes-Benz GLS models reliable?

Owners consistently rate the Mercedes-Benz GLS highly for comfort, craftsmanship, and overall driving satisfaction, and expert reviews reinforce its strong luxury feel and polished road manners. Across the model years in the data, it comes across as a well-built, premium SUV that many owners enjoy living with.

• 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 best managed by choosing a well-maintained example with a clean history and a thorough pre-purchase inspection.

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

Across all model years, accident-free inventory is solid at 84.4% — always verify the vehicle history report.

Older model years carry meaningfully higher accident rates, so always verify the vehicle history report on pre-2020 models.

Key things to evaluate:

• Safety package: Nearly 40 safety and driver-assistance systems, including Pre-Safe, Crosswind Assist, Active Emergency Stop Assist, front and rear parking sensors, and a surround-view camera system.
• Infotainment: Wireless Apple CarPlay and Android Auto, plus a navigation system with augmented reality enhancement.

Which Mercedes-Benz GLS trim should I buy?

The 2026 Mercedes-Benz GLS offers these trims:

• GLS 450: The entry trim pairs 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 a standard Airmatic adaptive suspension; it suits you if you want the best-value starting point with strong comfort and capability.
• GLS 580: This trim adds more power and a higher level of performance-oriented luxury for buyers who want extra muscle and a more upscale feel.
• AMG GLS 63: The AMG model brings the most performance-focused setup in the lineup, aimed at shoppers who want the sportiest driving character.
• Maybach GLS 600: This is the most opulent version, adding the highest level of luxury, exclusivity, and rear-seat indulgence.

What Mercedes-Benz GLS do most buyers choose?

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

Higher-volume years tend to be popular because they give you more inventory to compare, which can make it easier to find the right trim, color, and price. They also often sit in the sweet spot between newer features and broader used-market availability.

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

The GLS shows broad year-over-year price declines across the lineup, which is good news if you’re shopping used. Most model years are down by double digits, so you’re seeing meaningful value compared with prior pricing. The smaller declines at the lower end of the table suggest some older examples have already absorbed more of their price movement.

The 2017, 2023, and 2021 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 −11.99% versus a year ago, and the 2024 model is at −12.27%.
• Deal availability: The 2025 model has 38.3% good and great deals, and the 2024 model has 39.9%.
• Sweet-spot year: The 2025 model has the most listings at a current average price of $78,878. The Mercedes-Benz GLS offers a quiet, comfortable cabin with a refined ride and a strong sense of luxury. Consider waiting if:
• Powertrain/efficiency: A turbocharged 3.0-liter inline-six provides 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 Pre-Safe, Crosswind Assist, and Active Emergency Stop Assist.
• 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 October 6, 2026, CarGurus experts' opinions, and generative AI.