Used 2021 Mercedes-Benz GLS for Sale near Illinois
154 vehicles found
See the total price upfront.
Only show listings that include dealer fees- 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:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 46,800
- Stock #:
- 27547G
- VIN:
- 4JGFF5KE5MA401747
Sponsored by Gravity Autos Chicago
2021 Mercedes-Benz GLS
450 4MATIC
46,800 mi
$41,202
- Year:
- 2022
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Obsidian Black Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Transmission:
- 9-Speed Automatic
- Mileage:
- 44,195
- Stock #:
- 595638B
- VIN:
- 4JGFF5KE9NA695185
Sponsored Listing
2022 Mercedes-Benz GLS
450 4MATIC
44,195 mi
$49,895
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 84,084
- Stock #:
- 18674
- VIN:
- 4JGFF5KE8LA113946
Sponsored Listing
2020 Mercedes-Benz GLS
450 4MATIC
84,084 mi
$29,878
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- Automatic
- Mileage:
- 55,477
- Stock #:
- 169017
- VIN:
- 4JGFF5KE3LA169017
2020 Mercedes-Benz GLS
450 4MATIC
55,477 mi
$37,260
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 603 hp 4L V8
- Exterior color:
- Diamond White Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 50,476
- Stock #:
- P6934
- VIN:
- 4JGFF8KE0MA302710
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
50,476 mi
$64,367
- Year:
- 2022
- 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 Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 42,991
- Stock #:
- V3320
- VIN:
- 4JGFF5KE6NA787757
2022 Mercedes-Benz GLS
450 4MATIC
42,991 mi
$44,406
- 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:
- Diamond White Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Macchiato Beige/Black)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 83,778
- Stock #:
- TB597323B
- VIN:
- 4JGFF5KE7MA476059
2021 Mercedes-Benz GLS
450 4MATIC
83,778 mi
$36,224
- Year:
- 2022
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Dark Blue
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 31,994
- Stock #:
- na734711
- VIN:
- 4JGFF5KE3NA734711
2022 Mercedes-Benz GLS
450 4MATIC
31,994 mi
$46,854
- Year:
- 2022
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 18,741
- Stock #:
- PHR3131
- VIN:
- 4JGFF5KE0NA614588
2022 Mercedes-Benz GLS
450 4MATIC
18,741 mi
$57,912
- 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:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 44,770
- Stock #:
- 27551G
- VIN:
- 4JGFF5KE9MA464320
2021 Mercedes-Benz GLS
450 4MATIC
44,770 mi
$41,472
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 65,768
- Stock #:
- 085852
- VIN:
- 4JGFF5KE0LA085852
2020 Mercedes-Benz GLS
450 4MATIC
65,768 mi
$33,916
- Year:
- 2022
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Obsidian Black Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 55,889
- Stock #:
- BC20814
- VIN:
- 4JGFF5KE2NA622983
-$935
2022 Mercedes-Benz GLS
450 4MATIC
55,889 mi
$46,118
$45,183
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 603 hp 4L V8
- Exterior color:
- White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 58,774
- Stock #:
- C21391935
- VIN:
- 4JGFF8KE8MA497391
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
58,774 mi
$61,607
CarGurus Analysis:
2021 Mercedes-Benz GLS
With 880 currently listed for sale and an average price of $49,835.00, 33.1% of 2021 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.67 / 5 stars.
83.5% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class brings a new level of luxury to full-size SUVs, featuring three rows of spacious seating and impressive performance options.
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 603 hp 4L V8
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 57,266
- Stock #:
- UM7963
- VIN:
- 4JGFF8KE7MA380062
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
57,266 mi
$63,358
- 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:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 61,170
- Stock #:
- HL10818
- VIN:
- 4JGFF5KE7MA538723
2021 Mercedes-Benz GLS
450 4MATIC
61,170 mi
$38,305
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Gray
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 70,469
- Stock #:
- MS21033B
- VIN:
- 4JGFF5KE1LA222362
2020 Mercedes-Benz GLS
450 4MATIC
70,469 mi
$33,908
- 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:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 46,800
- Stock #:
- 27547G
- VIN:
- 4JGFF5KE5MA401747
2021 Mercedes-Benz GLS
450 4MATIC
46,800 mi
$41,202
- 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:
- Black
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 52,436
- Stock #:
- AP14313
- VIN:
- 4JGFF5KE0MA391189
2021 Mercedes-Benz GLS
450 4MATIC
52,436 mi
$40,600
- 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:
- Diamond White Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 79,866
- Stock #:
- VX131
- VIN:
- 4JGFF5KE9MA387285
2021 Mercedes-Benz GLS
450 4MATIC
79,866 mi
$35,572
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 603 hp 4L V8
- Exterior color:
- Mojave Silver Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Espresso Brown/Black
- Transmission:
- Automatic
- Mileage:
- 63,080
- Stock #:
- STK544506
- VIN:
- 4JGFF8KE5MA544506
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
63,080 mi
$58,900
- Year:
- 2022
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Cirrus Silver Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Macchiato Beige/Black)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 29,955
- Stock #:
- 27252G
- VIN:
- 4JGFF5KE5NA710541
2022 Mercedes-Benz GLS
450 4MATIC
29,955 mi
$47,902
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 603 hp 4L V8
- Exterior color:
- Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black Leather
- Transmission:
- Automatic
- Mileage:
- 57,464
- Stock #:
- T587A
- VIN:
- 4JGFF8KE0MA313805
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
57,464 mi
$63,500
- Year:
- 2022
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L I6
- Exterior color:
- Polar White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 49,833
- Stock #:
- P6068
- VIN:
- 4JGFF5KE1NA648538
Sponsored Listing
2022 Mercedes-Benz GLS
450 4MATIC
49,833 mi
$48,313
CarGurus Analysis: 2021 Mercedes-Benz GLS
overall
Summary
With 880 currently listed for sale and an average price of $49,835.00, 33.1% of 2021 Mercedes-Benz GLS models for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2021 Mercedes-Benz GLS 4.67 / 5 stars.
83.5% of 2021 GLS models on CarGurus are accident free.
The 2021 Mercedes-Benz GLS-Class brings a new level of luxury to full-size SUVs, featuring three rows of spacious seating and impressive performance options.
Why it stands out
The 2021 Mercedes-Benz GLS-Class is often referred to as the S-Class of SUVs, and it lives up to that reputation with its luxurious interior and advanced technology. With three rows of seating, it comfortably accommodates families while providing ample cargo space, making it a practical choice for those who need room without sacrificing luxury. The GLS offers multiple powertrain options, including a powerful V8 in the GLS 580 and the high-performance AMG GLS 63, which can accelerate from 0 to 60 mph in just 4.1 seconds. The vehicle is equipped with the latest MBUX infotainment system, featuring a massive touch screen and voice control capabilities, enhancing the driving experience. However, some users have noted that the third row can feel cramped, and the technology can be unintuitive at times. Overall, the GLS-Class stands out for its combination of comfort, performance, and cutting-edge features.
Other model years to consider
- Average price: $74,757.00
- Good/great deal percentage: 33.6%
- User rating: 5 / 5
- Total listings: 1,460
- Average price: $81,162.00
- Good/great deal percentage: 34.1%
- Total listings: 1,517
- Average price: $22,483.00
- Good/great deal percentage: 36.3%
- User rating: 4.8 / 5
- Total listings: 982
This analysis is based on CarGurus' proprietary market data from July 6, 2026, CarGurus experts' opinions, and generative AI.
4.7 Overall rating
Filter by rating
Wilber R
Reviewed a 2021 Mercedes-Benz GLS on Sep 4, 2024
Excellent car, very good finish full of attributes, spacious.
James C
Reviewed a 2021 Mercedes-Benz GLS on Dec 22, 2022
I feel that the features listed for this vehicle is good. I just didnt see one option that would have made me buy the vehicle fast. I did not see the multi contour massage feature. I wished that it would have been made clear on the listing.
Michelle A
Reviewed a 2021 Mercedes-Benz 450 4MATIC on Apr 8, 2023
Very nice ride, drives so well and well built. I love it so far!!
2021 Mercedes-Benz GLS Trims
| Trim type | MSRP |
|---|---|
| 450 4MATIC | $76,000 |
| AMG GLS 63 4MATIC AWD | $132,100 |
| 580 4MATIC | $98,850 |
| 600 Mercedes-Maybach 4MATIC | $160,500 |
2021 Mercedes-Benz GLS Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 Mercedes-Benz GLS prices has changed over time.
See more price trends2021 Mercedes-Benz GLS Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Miami: The city of Miami, FL ($60,608) has the highest average price, likely reflecting a strong demand for luxury vehicles in a high-income area.
- Lowest Prices in Boston: Conversely, Boston, MA ($37,966) offers the lowest average price, suggesting a more competitive market or higher inventory levels.
- Price Variation Across Cities: Cities like Philadelphia ($55,779) and Atlanta ($54,763) show significant pricing, indicating regional demand differences, possibly influenced by local economic conditions.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Miami, FL | 141 | $60,608 |
| Philadelphia, PA | 194 | $55,779 |
| Atlanta, GA | 170 | $54,763 |
| Los Angeles, CA | 138 | $51,571 |
| Houston, TX | 144 | $50,573 |
| Chicago, IL | 153 | $48,768 |
| Dallas, TX | 143 | $47,005 |
| New York, NY | 252 | $42,814 |
| Washington, DC | 200 | $40,741 |
| Boston, MA | 161 | $37,966 |
Pricing by Trim Packages
Key Insights
- Most Common Trim: The 450 4MATIC is the most prevalent trim with 2,724 listings, indicating strong demand for this model.
- Premium Pricing for Higher Trims: The 600 Mercedes-Maybach 4MATIC has a significantly higher MSRP of $160,500, reflecting its luxury positioning and features.
- AWD Dominance: All trims listed are AWD, highlighting a market preference for all-weather capability in luxury SUVs.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| 450 4MATIC | 2724 | $76,000 | AWD | 3.0L 362 hp I6 |
| 580 4MATIC | 327 | $98,850 | AWD | 4.0L 483 hp V8 |
| 600 Mercedes-Maybach 4MATIC | 149 | $160,500 | AWD | 4.0L 550 hp V8 |
| AMG GLS 63 4MATIC AWD | 57 | $132,100 | AWD | 4.0L 603 hp V8 |
Pricing Analysis by Model Year
Key Insights
- New Models Command Premium: The 2026 model is priced at $102,627, which is 13.5% above MSRP, indicating strong demand for the latest model.
- Significant Depreciation for Older Models: The 2019 model shows a steep decline, priced at $25,465, which is -63.7% vs MSRP, reflecting typical depreciation trends for luxury vehicles.
- Best Value in Recent Models: The 2022 model is priced at $51,535, representing a -33.5% depreciation, making it a potentially attractive option for buyers seeking value without sacrificing modern features.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 Mercedes-Benz GLS | $90,250 | $102,627 | +13.5% |
| 2025 Mercedes-Benz GLS | $89,200 | $83,984 | -5.0% |
| 2024 Mercedes-Benz GLS | $87,000 | $79,300 | -8.9% |
| 2023 Mercedes-Benz GLS | $81,800 | $71,889 | -12.1% |
| 2022 Mercedes-Benz GLS | $77,850 | $51,535 | -33.5% |
| 2020 Mercedes-Benz GLS | $75,200 | $36,588 | -51.3% |
| 2019 Mercedes-Benz GLS | $70,150 | $25,465 | -63.7% |
| 2018 Mercedes-Benz GLS | $69,550 | $23,328 | -66.5% |
| 2017 Mercedes-Benz GLS | $67,050 | $19,609 | -70.8% |
These recommendations are based on CarGurus' proprietary market data from July 2, 2026, CarGurus experts' opinions, and generative AI.
FAQs
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