Used 2017 Mercedes-Benz GLS for Sale near Boston, MA

## Summary - With 665 currently listed for sale on CarGurus and an **average price of $19,011.00**, 31.0% of 2017 Mercedes-Benz GLS vehicles for sale are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2017 Mercedes-Benz GLS 4.75 / 5 stars. - **64.4% of 2017 GLS models on CarGurus are accident free**. - The 2017 Mercedes-Benz GLS is celebrated for its impressive power, luxurious comfort, and high-quality engineering, making it a top choice for a seven-seat SUV. ## Why it stands out The 2017 Mercedes-Benz GLS distinguishes itself in the crowded SUV market with its excellent blend of performance, comfort, and style. As a midsize luxury SUV, it offers three rows of seating, accommodating either six or seven passengers comfortably. The vehicle boasts powerful engine options, notably the twin-turbo V6 in the GLS450, delivering a thrilling driving experience. While mainstream rivals may offer greater spaciousness, many owners appreciate the GLS for its refined interior, high-quality materials, and advanced engineering. Additionally, the GLS integrates some off-road capabilities, which makes it appealing to families seeking luxury without sacrificing versatility. ## Other model years to consider - **[2021 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2021-Mercedes-Benz-GLS-c29893)** - Average price: $54,114.00 - Good/great deal percentage: 34.8% - User rating: 4.93 / 5 - Total listings: 865 - **[2022 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2022-Mercedes-Benz-GLS-c31986)** - Average price: $50,767.00 - Good/great deal percentage: 35.0% - User rating: 5 / 5 - Total listings: 984 - **[2019 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2019-Mercedes-Benz-GLS-c28644)** - Average price: $25,044.00 - Good/great deal percentage: 31.5% - User rating: 4.7 / 5 - Total listings: 797 This analysis is based on CarGurus' proprietary market data from March 2, 2026, CarGurus experts' opinions, and generative AI.