Used 2021 Mercedes-Benz GLB for Sale near California

## Summary - With 1,007 currently listed for sale and an **average price of $24,467.00**, 33.9% of 2021 Mercedes-Benz GLBs for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2021 Mercedes-Benz GLB 4.83 / 5 stars. - **85.2% of 2021 GLB models on CarGurus are accident free**. - The 2021 Mercedes-Benz GLB offers a flexible interior layout with an optional third row, allowing it to seat up to seven passengers, making it a versatile choice in the luxury SUV segment. ## Why it stands out The 2021 Mercedes-Benz GLB distinguishes itself in the competitive luxury SUV market with its combination of practicality and upscale features. This compact SUV is built on a front-wheel-drive platform, offering a turbocharged 2.0-liter inline four-cylinder engine that produces 221 horsepower. Its standout feature is the optional third row, which maximizes passenger capacity from five to seven, making it perfect for families. The interior is a highlight, showcasing a modern design with high-quality materials, an intuitive Mercedes-Benz User Experience (MBUX) infotainment system, and numerous tech features. Despite some limitations, such as a cramped third row and less-than-comfortable seats, the GLB's strong safety credentials and impressive technology package make it appealing to those looking for a premium SUV without exorbitantly high costs. ## Other model years to consider - **[2022 Mercedes-Benz GLB](https://www.cargurus.com/Cars/l-Used-2022-Mercedes-Benz-GLB-c31985)** - Average price: $28,441.00 - Good/great deal percentage: 31.9% - User rating: 4.75 / 5 - Total listings: 1,156 - **[2020 Mercedes-Benz GLB](https://www.cargurus.com/Cars/l-Used-2020-Mercedes-Benz-GLB-c29345)** - Average price: $21,122.00 - Good/great deal percentage: 35.2% - User rating: 4.06 / 5 - Total listings: 562 **Footer:** This analysis is based on CarGurus' proprietary market data from March 30, 2026, CarGurus experts' opinions, and generative AI.