Used 2021 Mercedes-Benz GLB for Sale near Philadelphia, PA
130 results
CarGurus Analysis:
2021 Mercedes-Benz GLB
With 127 currently listed for sale near Philadelphia, PA and an average price of $25,009.00, 58.3% 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 5 / 5 stars.
100.0% of 2021 GLB models on CarGurus are accident free.
The 2021 Mercedes-Benz GLB offers a flexible interior layout with an optional third row, accommodating up to seven passengers while maintaining a stylish luxury SUV feel.
CarGurus Analysis: 2021 Mercedes-Benz GLB
overall
Summary
With 127 currently listed for sale near Philadelphia, PA and an average price of $25,009.00, 58.3% 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 5 / 5 stars.
100.0% of 2021 GLB models on CarGurus are accident free.
The 2021 Mercedes-Benz GLB offers a flexible interior layout with an optional third row, accommodating up to seven passengers while maintaining a stylish luxury SUV feel.
Why it stands out
The 2021 Mercedes-Benz GLB distinguishes itself in the luxury SUV market by combining versatility with a reasonable starting price. Its notable feature is the optional third row that expands passenger capacity from five to seven, making it an appealing choice for families. The SUV is equipped with a user-friendly infotainment system featuring voice control, which is enhanced by the latest technology offerings from Mercedes-Benz. The GLB's performance is powered by a turbocharged 2.0-liter inline four-cylinder engine that delivers a smooth drive with impressive fuel efficiency ratings, especially when equipped with the optional 4MATIC all-wheel drive. Although it's aesthetically similar to its siblings in the lineup, the GLB offers excellent cabin quality and innovative safety features, ensuring a modern driving experience. A few drawbacks include a cramped third row and some discomfort from the seating over long drives; however, the GLB’s overall merits make it a strong contender in its class.
Other model years to consider
- Average price: $21,398.00
- Good/great deal percentage: 45.7%
- User rating: 4.14 / 5
- Total listings: 81
- Average price: $28,350.00
- Good/great deal percentage: 66.2%
- User rating: 4 / 5
- Total listings: 133
This analysis is based on CarGurus' proprietary market data from April 21, 2026, CarGurus experts' opinions, and generative AI.
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5.0 Overall rating
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Lauren W
Reviewed a 2021 Mercedes-Benz 250 4MATIC on Jul 24, 2024
Amazing suv for people who want a small SUV. Size of a Nissan Rouge, but with the features and luxury options of a Mercedes.
2021 Mercedes-Benz GLB Trims
| Trim type | MSRP |
|---|---|
| 250 4MATIC | $40,050 |
| AMG 35 4MATIC | $49,500 |
| 250 FWD | $38,050 |
2021 Mercedes-Benz GLB Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 Mercedes-Benz GLB prices has changed over time.
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