Used 2018 Mercedes-Benz GLS for Sale near Porter Ranch, CA

## Summary - With 942 currently listed for sale on CarGurus and an **average price of $22,685.00**, 34.2% of 2018 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2018 Mercedes-Benz GLS 3.81 / 5 stars. - **66.7% of 2018 GLS models on CarGurus are accident free**. - The 2018 Mercedes-Benz GLS impresses with its luxurious features, outstanding comfort, and powerful performance, appealing particularly through its advanced electronic driving aids. ## Why it stands out The 2018 Mercedes-Benz GLS stands out as the largest vehicle within the Mercedes-Benz lineup, offering an exceptional level of luxury combined with robust functionality. It showcases three rows of seating that can accommodate six or seven passengers, making it an excellent choice for families. With up to 94 cubic feet of cargo space, it combines the elegance of the S-Class sedan with the utility needed for off-road adventures. Owners frequently commend the vehicle's luxurious features, particularly the smooth power delivery and state-of-the-art electronic technology that enhances the driving experience. However, it should be noted that some feedback indicates that the interior space may fall short of expectations, with suggestions for additional charging options made by users. Overall, the GLS presents a blend of luxury and practicality that resonates strongly with buyers, establishing itself as a competitive entry within the three-row luxury SUV category, rivaling models such as the Audi Q7 and BMW X7. ## Other model years to consider - **[2024 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2024-Mercedes-Benz-GLS-c32834)** - Average price: $79,208.00 - Good/great deal percentage: 34.5% - User rating: 5 / 5 - Total listings: 1,268 - **[2025 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2025-Mercedes-Benz-GLS-c33471)** - Average price: $86,393.00 - Good/great deal percentage: 34.3% - Total listings: 1,143 - **[2021 Mercedes-Benz GLS](https://www.cargurus.com/Cars/l-Used-2021-Mercedes-Benz-GLS-c29893)** - Average price: $54,023.00 - Good/great deal percentage: 33.7% - User rating: 4.93 / 5 - Total listings: 881 This analysis is based on CarGurus' proprietary market data from March 9, 2026, CarGurus experts' opinions, and generative AI.