Used 2021 Mercedes-Benz GLS for SaleNationwide

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Year:
2021
Make:
Mercedes-Benz
Model:
GLS
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
All-Wheel Drive
Engine:
362 hp 3L I6
Exterior color:
Selenite Gray
Fuel type:
Gasoline
Interior color:
Black
Transmission:
9-Speed Automatic Overdrive
Mileage:
66,430
Stock #:
L14125A
VIN:
4JGFF5KE4MA440295
Selenite Gray 2021 Mercedes-Benz GLS SUV / Crossover All-Wheel Drive 9-Speed Automatic Overdrive
Price drop

-$1,989

Ā 

2021 Mercedes-Benz GLS

450 4MATIC

66,430 mi

Mesa, AZ
Great Deal

$35,587

$33,598

CarGurus Analysis:

2021 Mercedes-Benz GLS

4.7

  • With 822 currently listed for sale and an average price of $48,902.00, 36.0% of 2021 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.67 / 5 stars and CarGurus experts gave it an 8.33 / 10.

  • 84.1% of 2021 GLS models on CarGurus are accident free.

Research summarized using AI

Year:
2020
Make:
Mercedes-Benz
Model:
GLS
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
All-Wheel Drive
Engine:
362 hp 3L I6
Combined gas mileage:
21 MPG
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
62,427
Stock #:
6J2400T
VIN:
4JGFF5KEXLA168219
 2020 Mercedes-Benz GLS SUV / Crossover All-Wheel Drive Automatic
New arrival

Ā 

2020 Mercedes-Benz GLS

450 4MATIC

62,427 mi

Hopkins, MN
Great Deal

$32,949

CarGurus Analysis: 2021 Mercedes-Benz GLS

8.3
of 10
overall
Look and feel9/10
Technology9/10
Performance9/10
Safety9/10
Form & function8/10
Cost effectiveness6/10
Image Not Available

Summary

  • With 822 currently listed for sale and an average price of $48,902.00, 36.0% of 2021 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.67 / 5 stars and CarGurus experts gave it an 8.33 / 10.

  • 84.1% of 2021 GLS models on CarGurus are accident free.

Why it stands out

The 2021 Mercedes-Benz GLS is positioned as a luxury-first full-size SUV, and its appeal starts with the way it blends three-row practicality with a premium feel. Mercedes ties the ā€œSā€ in its name to the S-Class flagship sedan, and the GLS is presented as the ā€œS-Class of SUVs,ā€ which captures its emphasis on comfort and refinement. It also offers spacious seating for three rows, along with enough cargo room for groceries, weekend bags, and even larger items that would be difficult to fit in a sedan.

What makes the 2021 GLS distinctive is that it does not stop at comfort alone. The available performance is described as surprising, and the SUV is credited with multiple powertrain options, plenty of cargo space, and impressive technology. At the same time, it is not without drawbacks: the third row is cramped, the technology can be unintuitive, and fuel economy is poor. That mix makes the GLS appealing to buyers who want a high-end, full-size SUV with strong luxury credentials, while still accepting some compromises in usability and efficiency.

Other model years to consider

  • 2024 Mercedes-Benz GLS

    • Average price: $73,048.00
    • Good/great deal percentage: 36.6%
    • User rating: 5 / 5
    • Total listings: 1,435
  • 2025 Mercedes-Benz GLS

    • Average price: $80,372.00
    • Good/great deal percentage: 36.7%
    • Total listings: 1,557
  • 2020 Mercedes-Benz GLS

    • Average price: $33,884.00
    • Good/great deal percentage: 36.6%
    • User rating: 5 / 5
    • Total listings: 765

This analysis is based on CarGurus' proprietary market data from August 10, 2026, CarGurus experts' opinions, and generative AI.

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