Used 2020 Mercedes-Benz GLS for Sale near Illinois
Shop with transparent pricing.
Only show listings that include dealer fees- 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/Magma Gray
- Transmission:
- 9-Speed Automatic
- Mileage:
- 96,607
- Stock #:
- F6760
- VIN:
- 4JGFF5KE3LA128029
Sponsored by Palmen Kia of Kenosha
2020 Mercedes-Benz GLS
450 4MATIC
96,607 mi
$29,868
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 100,952
- Stock #:
- 15656
- VIN:
- 4JGDF6EEXKB216335
Sponsored Listing
2019 Mercedes-Benz GLS
450 4MATIC
100,952 mi
$20,358
- 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:
- designo Diamond White Bright Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 37,151
- Stock #:
- UNM5505
- VIN:
- 4JGFF8KE0MA364656
Sponsored Listing
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
37,151 mi
$72,358
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 4L V8
- Exterior color:
- Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- CREAM
- Transmission:
- Automatic
- Mileage:
- 54,982
- Stock #:
- 28077481
- VIN:
- 4JGFF8GE5LA198397
2020 Mercedes-Benz GLS
580 4MATIC
54,982 mi
$44,998
- 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
- Transmission:
- 9-Speed Automatic
- Mileage:
- 79,159
- Stock #:
- 12422
- VIN:
- 4JGFF8KE2MA400122
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
79,159 mi
$54,377
- 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:
- Selenite Gray Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 66,610
- Stock #:
- NU3563
- VIN:
- 4JGFF5KE1LA205089
2020 Mercedes-Benz GLS
450 4MATIC
66,610 mi
$34,011
- 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
- Transmission:
- Automatic
- Mileage:
- 42,244
- Stock #:
- LV608
- VIN:
- 4JGFF8KE8MA307377
-$3,000
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
42,244 mi
$73,377
$70,377
- 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:
- Emerald Green Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Macchiato Beige/Black)
- Transmission:
- 9-Speed Automatic
- Mileage:
- 72,267
- Stock #:
- 26201A
- VIN:
- 4JGFF5KE6MA561877
2021 Mercedes-Benz GLS
450 4MATIC
72,267 mi
$37,177
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 139,154
- Stock #:
- P65388
- VIN:
- 4JGDF6EE8KB210193
2019 Mercedes-Benz GLS
450 4MATIC
139,154 mi
$16,722
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Ginger Beige/Black)
- Transmission:
- Automatic
- Mileage:
- 48,402
- Stock #:
- 11295
- VIN:
- 4JGDF6EEXKB238495
2019 Mercedes-Benz GLS
450 4MATIC
48,402 mi
$29,100
- 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:
- designo Diamond White Bright Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 37,151
- Stock #:
- UNM5505
- VIN:
- 4JGFF8KE0MA364656
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
37,151 mi
$72,358
- 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:
- White
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Transmission:
- 9-Speed Automatic
- Mileage:
- 76,801
- Stock #:
- MA569690M
- VIN:
- 4JGFF5KE8MA569690
2021 Mercedes-Benz GLS
450 4MATIC
76,801 mi
$37,073
- 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
- Transmission:
- 9-Speed Automatic
- Mileage:
- 15,584
- Stock #:
- P219467
- VIN:
- 4JGFF5KE0LA219467
2020 Mercedes-Benz GLS
450 4MATIC
15,584 mi
$44,449
CarGurus Analysis:
2020 Mercedes-Benz GLS
With 765 currently listed for sale and an average price of $33,884.00, 36.6% of 2020 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 Mercedes-Benz GLS 5 / 5 stars.
77.0% of 2020 GLS models on CarGurus are accident free.
- 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:
- Obsidian Black Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Macchiato
- Transmission:
- 9-Speed Automatic
- Mileage:
- 42,036
- Stock #:
- UM8178
- VIN:
- 4JGFF8KE0MA407831
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
42,036 mi
$70,358
- 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:
- Green
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 58,781
- Stock #:
- Z3055
- VIN:
- 4JGFF8KE2MA364917
2021 Mercedes-Benz GLS
AMG GLS 63 4MATIC AWD
58,781 mi
$60,130
- 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:
- Iridium Silver Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black/Magma Grey
- Transmission:
- Automatic
- Mileage:
- 66,740
- Stock #:
- PC2552
- VIN:
- 4JGFF5KE9LA195430
2020 Mercedes-Benz GLS
450 4MATIC
66,740 mi
$34,184
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 59,454
- Stock #:
- 223958
- VIN:
- 4JGDF6EE4KB223958
2019 Mercedes-Benz GLS
450 4MATIC
59,454 mi
$26,259
- Year:
- 2020
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 4L V8
- Exterior color:
- Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 86,209
- Stock #:
- P65378
- VIN:
- 4JGFF8GE2LA167348
2020 Mercedes-Benz GLS
580 4MATIC
86,209 mi
$36,722
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 76,853
- Stock #:
- KB184804
- VIN:
- 4JGDF6EE0KB184804
2019 Mercedes-Benz GLS
450 4MATIC
76,853 mi
$23,716
- 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:
- Brilliant Blue Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Macchiato/Magma Grey)
- Transmission:
- Automatic
- Mileage:
- 70,323
- Stock #:
- HL10949
- VIN:
- 4JGFF5KE1LA133536
-$2,000
2020 Mercedes-Benz GLS
450 4MATIC
70,323 mi
$32,305
$30,305
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Polar White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Ginger Beige Espresso Brown w MB-Tex Upholstery
- Transmission:
- 9-Speed Automatic
- Mileage:
- 65,937
- Stock #:
- MP4124
- VIN:
- 4JGDF6EE4KB226813
2019 Mercedes-Benz GLS
450 4MATIC
65,937 mi
$26,981
- 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:
- Brilliant Blue Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Macchiato
- Transmission:
- 9-Speed Automatic
- Mileage:
- 69,147
- Stock #:
- 15045
- VIN:
- 4JGFF5KE5MA485567
2021 Mercedes-Benz GLS
450 4MATIC
69,147 mi
$37,071
- Year:
- 2021
- Make:
- Mercedes-Benz
- Model:
- GLS
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 4L V8
- Exterior color:
- Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Transmission:
- 9-Speed Automatic
- Mileage:
- 84,821
- Stock #:
- M260726A
- VIN:
- 4JGFF8GEXMA473263
Sponsored Listing
2021 Mercedes-Benz GLS
580 4MATIC
84,821 mi
$42,402
CarGurus Analysis: 2020 Mercedes-Benz GLS
Summary
With 765 currently listed for sale and an average price of $33,884.00, 36.6% of 2020 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 Mercedes-Benz GLS 5 / 5 stars.
77.0% of 2020 GLS models on CarGurus are accident free.
Why it stands out
The 2020 Mercedes-Benz GLS stands out as the roomiest vehicle in the Mercedes-Benz lineup, with three rows of seating for six or seven people and up to 94 cubic feet of cargo space. It is also positioned as a midsize SUV that blends the comfort and space of the S-Class luxury sedan with some off-road capability, which gives it a broader appeal than a typical family hauler. For 2020, Mercedes moved the GLS into its second generation with a curvier exterior, a wide-screened cabin, a stretched wheelbase, and a body that was just over 2.5 inches longer.
That redesign brought meaningful gains in technology and refinement. The 2020 GLS450 used a new 3.0-liter inline-six with 362 horsepower and 369 pound-feet of torque, paired with a 48-volt mild hybrid system called EQ Boost. Mercedes said that setup improved fuel economy to an EPA-estimated 21 mpg combined, up from 18 mpg in the 2019 model. Standard equipment was generous, including dual 12.3-inch displays with MBUX, navigation, a Burmester surround sound stereo, wireless charging, nine USB-C ports, power-folding third-row seats, power-adjustable second-row seats, and 19-inch wheels. Safety and convenience features were also a highlight, with blind spot assist, 360-degree cameras, adaptive headlamps, auto high beams, parking assist, Car-to-X communication, and Exit Warning Assist all included.
The GLS also has a practical side that helps explain its appeal. Mercedes built in a seating function that automatically adjusts the seat in front when part of the second or third row is folded, making it easier to load passengers or cargo without repeated seat shuffling. At the same time, the 2020 model is not without compromises: front headroom decreased, total cargo space shrank significantly compared with the previous generation, and the AMG Line Package could impede entry and exit. Even so, the 2020 GLS remains distinctive for buyers who want a large, luxurious three-row SUV with strong standard technology and a cabin designed around comfort and flexibility.
Other model years to consider
- Average price: $73,048.00
- Good/great deal percentage: 36.6%
- User rating: 5 / 5
- Total listings: 1,435
- Average price: $80,372.00
- Good/great deal percentage: 36.7%
- Total listings: 1,557
- Average price: $22,234.00
- Good/great deal percentage: 37.4%
- User rating: 4.8 / 5
- Total listings: 930
This analysis is based on CarGurus' proprietary market data from August 10, 2026, CarGurus experts' opinions, and generative AI.
5.0 Overall rating
Filter by rating
Bonnie C
Reviewed a 2020 Mercedes-Benz GLS on Sep 21, 2024
Love all the features and it can pull my camper no problem! Beautiful car with kinetic seats that are nice when on a long drive. Love how my phone integrates into the dash screen. It’s classy for business but heavy enough to be outdoorsy as welll. Great value and you can’t go wrong with a Mercedes.
Anonymous
Reviewed a 2020 Mercedes-Benz GLS on Sep 1, 2024
I just purchased a 2020 GLS 450 with 18,000 miles on the clock and I LOVE it. Nothing beats Mercedes when it comes to quality of vehicle and service from the Mercedes team. I was able to get an extended 5 year/ 100,000 mile warranty, which to me was worth the extra money. My last Mercedes was a 2003 E 500. It was such a good car that I waited this long to replace it. That’s what you get when you buy a Mercedes.
Live L
Reviewed a 2020 Mercedes-Benz GLS on Jun 23, 2023
It’s comfortable, luxurious, worth for investment, stylish, overall beautiful vehicle
Huzaifa M
Reviewed a 2020 Mercedes-Benz GLS on Oct 9, 2022
excellent updates, new model GLS 2020 is better than any luxury SUV for many reasons on driving and interior comforts. Tech next level.
2020 Mercedes-Benz GLS Trims
| Trim type | MSRP |
|---|---|
| 450 4MATIC | $75,200 |
| 580 4MATIC | $97,800 |
2020 Mercedes-Benz GLS Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 Mercedes-Benz GLS prices has changed over time.
See more price trends2020 Mercedes-Benz GLS Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Chicago: The city commands the highest average price at $35,886, likely due to higher demand and limited inventory.
- Lowest Prices in 2017 GLS: The 2017 Mercedes-Benz GLS is priced at $18,942, indicating significant depreciation for older models.
- Inventory Variation: Cities like New York (216 listings) and Philadelphia (196 listings) have substantial inventory, which may help stabilize prices around $31,426 and $32,600, respectively.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 157 | $35,886 |
| Dallas, TX | 129 | $34,471 |
| Los Angeles, CA | 116 | $33,530 |
| Philadelphia, PA | 196 | $32,600 |
| New York, NY | 216 | $31,426 |
| Miami, FL | 125 | $31,987 |
| Washington, DC | 195 | $31,327 |
| Atlanta, GA | 160 | $35,139 |
| Boston, MA | 159 | $31,966 |
| Houston, TX | 123 | $30,534 |
Pricing Analysis by Model Year
Key Insights
- Strong New-Car Premium: The 2026 Mercedes-Benz GLS is priced at $98,699, about 9.3% above MSRP, indicating strong demand for the latest model.
- Depreciation Trends: The 2019 model shows a significant drop, priced at $24,979, reflecting a 64.4% depreciation from its original MSRP.
- Best Value Years: The 2022 and 2023 models offer a balance of price and features, with average prices at $51,278 and $67,902, respectively, indicating less depreciation compared to older models.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 Mercedes-Benz GLS | $90,250 | $98,699 | +9.3% |
| 2025 Mercedes-Benz GLS | $89,200 | $85,212 | -4.4% |
| 2024 Mercedes-Benz GLS | $87,000 | $77,014 | -11.4% |
| 2023 Mercedes-Benz GLS | $81,800 | $67,902 | -17.0% |
| 2022 Mercedes-Benz GLS | $77,850 | $51,278 | -34.3% |
| 2021 Mercedes-Benz GLS | $76,000 | $51,519 | -32.2% |
| 2019 Mercedes-Benz GLS | $70,150 | $24,979 | -64.4% |
| 2018 Mercedes-Benz GLS | $69,550 | $22,906 | -67.0% |
| 2017 Mercedes-Benz GLS | $67,050 | $18,942 | -71.8% |
These recommendations are based on CarGurus' proprietary market data from August 13, 2026, CarGurus experts' opinions, and generative AI.
FAQs
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