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342 listings
  • $59,990
    great price
    $8,873 below market
    • 24,038 miles
    • No accidents, 1 owner, personal use only
    • 8cyl automatic
    • Land Rover Willow Grove (37 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Willow Grove, PA / 37 miles away from Wilmington, DE

    CARFAX One-Owner. Clean CARFAX. 2021 Mercedes-Benz GLS GLS 580 4MATIC 4MATIC 9-Speed Automatic 4.0L V8 Priced below KBB Fair Purchase Price!Odometer i...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/21 Highway)

    Listing Information:

    VIN: 4JGFF8GE7MA396352
    Stock: P6531
    Certified Pre-Owned: No
    Listed since: 02-10-2025

  • Stock photo**
    $63,491
    great price
    $12,384 below market
    • 10,760 miles
    • 1 accident, 1 owner, corporate fleet vehicle
    • 8cyl automatic
    • CarTopia (84 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in North Plainfield, NJ / 84 miles away from Wilmington, DE

    Don't miss this great Mercedes-Benz! It just arrived on our lot, and surely won't be here long! The engine breathes better thanks to a turbocharger, i...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/21 Highway)

    Listing Information:

    VIN: 4JGFF8GE0MA407448
    Stock: C4017
    Certified Pre-Owned: No
    Listed since: 04-12-2025

    • 42,528 miles
    • No accidents, 1 owner, personal use
    • 6cyl automatic
    • Mercedes-Benz of West Chester (12 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in West Chester, PA / 12 miles away from Wilmington, DE

    1 OWNER. MERCEDES-BENZ CERTIFIED. FULL DEALER SERVICE HISTORY. DRIVER ASSISTANCE PLUS PACKAGE,, WARMTH AND COMFORT PACKAGE, PANORAMA ROOF, 7 PASSENGER...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (20 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE2MA456169
    Stock: MA456169L
    Certified Pre-Owned: Yes
    Listed since: 04-10-2025

  • $53,394
    fair price
    $1,042 below market
    • 48,621 miles
    • 1 accident, 1 owner, personal use
    • 8cyl automatic
    • Audi Warrington (42 mi away)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Warrington, PA / 42 miles away from Wilmington, DE

    Local Trade, Back Up Camera, Blind Spot Monitoring, Apple CarPlay, Leather Seats, Sunroof/Moonroof, BLUETOOTH!, Low Miles!, ONE OWNER!, Navigation sys...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/21 Highway)

    Listing Information:

    VIN: 4JGFF8GE1MA414893
    Stock: 3511591
    Certified Pre-Owned: No
    Listed since: 03-31-2025

  • $49,800
    fair price
    $123 above market
    • 70,605 miles
    • No accidents, 5 owners, personal use only
    • 8cyl automatic
    • Space Auto Group (78 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in East Brunswick, NJ / 78 miles away from Wilmington, DE

    Real Prices, No Surprises! At Space Auto Group, we stand out among other dealerships by offering a transparent and honest car-buying process. No hidde...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/21 Highway)

    Listing Information:

    VIN: 4JGFF8GE4MA442235
    Stock: S10159T
    Certified Pre-Owned: No

    • 66,356 miles
    • 2 accidents, 1 owner, personal use only
    • 6cyl automatic
    • Mercedes-Benz of Silver Spring (88 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Silver Spring, MD / 88 miles away from Wilmington, DE

    CERTIFIED!!! PANORAMA SUNROOF... CAPTAIN CHAIRS (6 SEATER) PASSENGER SEAT MEMORY W/ ADJ. THIGH SUPPORT... POWER REAR-SIDE WINDOW SUNSHADES... HEATED ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (20 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE2MA546339
    Stock: JP73827
    Certified Pre-Owned: Yes
    Listed since: 04-05-2025

  • $47,933
    fair price
    $1,424 below market
    • 62,433 miles
    • 1 accident, 1 owner, personal use only
    • 6cyl automatic
    • Koons Annapolis Toyota (74 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Annapolis, MD / 74 miles away from Wilmington, DE

    13 Speakers, 3.27 Axle Ratio, 3rd row seats: split-bench, 4-Wheel Disc Brakes, 7-Seat Configuration, ABS brakes, Active Brake Assist w/Cross-Traffic F...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE1NA685637
    Stock: CS21421
    Certified Pre-Owned: No
    Listed since: 03-08-2025

    • 18,840 miles
    • No accidents, 1 owner, personal use
    • 8cyl automatic
    • Mercedes-Benz of Union (93 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Union, NJ / 93 miles away from Wilmington, DE

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/21 Highway)

    Listing Information:

    VIN: 4JGFF8GE4NA791672
    Stock: P10015
    Certified Pre-Owned: Yes
    Listed since: 10-23-2024

    • 40,338 miles
    • No accidents, 2 owners, personal use
    • 6cyl automatic
    • Mercedes-Benz of Little Silver (89 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Little Silver, NJ / 89 miles away from Wilmington, DE

    Mercedes-Benz of Little Silver is proud to present this...Obsidian Black 2022 Mercedes-Benz GLS 450 4MATIC® I6 9-Speed Automatic 4MATIC®CARFAX One-O...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE2NA596952
    Stock: 64654A
    Certified Pre-Owned: Yes
    Listed since: 10-25-2024

    • 29,386 miles
    • No accidents, 1 owner, personal use only
    • 6cyl automatic
    • Mercedes-Benz of Union (93 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Union, NJ / 93 miles away from Wilmington, DE

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE8NA744182
    Stock: 256025XU
    Certified Pre-Owned: Yes
    Listed since: 03-31-2025

  • $34,888
    fair price
    $384 below market
    • 79,707 miles
    • No accidents, 1 owner, personal use only
    • 6cyl automatic
    • Porsche Owings Mills (70 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Owings Mills, MD / 70 miles away from Wilmington, DE

    2020 Mercedes-Benz GLS 450 4MATIC in Black with a black and MB-Tex interior. The 2020 Mercedes-Benz GLS 450 4MATIC is a luxurious full-size SUV that b...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (19 City/23 Highway)

    Listing Information:

    VIN: 4JGFF5KE2LA096366
    Stock: P1109A
    Certified Pre-Owned: No
    Listed since: 03-23-2025

  • Stock photo**
    $35,606
    good price
    $2,299 below market
    • 69,591 miles
    • No accidents, 2 owners, rental vehicle
    • 6cyl automatic
    • CarTopia (84 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in North Plainfield, NJ / 84 miles away from Wilmington, DE

    Check out this 2020! Luxury redefined! The engine breathes better thanks to a turbocharger, improving both performance and economy. Mercedes-Benz prio...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (19 City/23 Highway)

    Listing Information:

    VIN: 4JGFF5KE1LA106787
    Stock: C3984
    Certified Pre-Owned: No
    Listed since: 03-29-2025

  • Price Drop
    $52,599
    fair price
    $445 below market
    • 47,388 miles
    • No accidents, 1 owner, personal use only
    • 6cyl automatic
    • 355 Toyota (97 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Rockville, MD / 97 miles away from Wilmington, DE

    Luxury, power, and enough tech to make a spaceship jealous this **2022 Mercedes-Benz GLS 450 4MATIC** in **Polar White** is the ultimate SUV for those...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE8NA726894
    Stock: 52J3020A
    Certified Pre-Owned: No
    Listed since: 02-12-2025

  • Stock photo**
    • 40,558 miles
    • No accidents, 1 owner, personal use
    • 6cyl automatic
    • Mercedes-Benz of West Chester (12 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in West Chester, PA / 12 miles away from Wilmington, DE

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE3NA816390
    Stock: NA816390L
    Certified Pre-Owned: Yes
    Listed since: 04-10-2025

  • $29,995
    good price
    $1,206 below market
    • 105,066 miles
    • No accidents, 1 owner, personal use
    • 6cyl automatic
    • Global Auto Outlet (98 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Temple Hills, MD / 98 miles away from Wilmington, DE

    Estimated monthly payment and estimated total purchase price include the Maryland processing fee of $800 (not required by law). Taxes and additional f...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (19 City/23 Highway)

    Listing Information:

    VIN: 4JGFF5KE5LA149416
    Stock: 149416
    Certified Pre-Owned: No
    Listed since: 04-16-2025

  • Price Drop
    $60,116
    fair price
    $388 below market
    • 27,802 miles
    • 1 accident, 1 owner, personal use only
    • 6cyl automatic
    • Matt Blatt Infiniti of Atlantic City (54 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Egg Harbor Township, NJ / 54 miles away from Wilmington, DE

    This 2022 Mercedes-Benz GLS 450 4MATIC is in immaculate mechanical and cosmetic condition, offering the perfect combination of luxury, power, and perf...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KEXNA793528
    Stock: Q25143A
    Certified Pre-Owned: No
    Listed since: 03-22-2025

  • New Listing
    • 23,865 miles
    • No accidents, 1 owner, personal use
    • 6cyl automatic
    • Euro Motorcars Devon (22 mi away)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Devon, PA / 22 miles away from Wilmington, DE

    2022 Mercedes-Benz GLS 4MATIC Certified. Mercedes-Benz Certified Pre-Owned Details: * 165+ Point Inspection * Includes Trip Interruption Reimbursement...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE1NA671155
    Stock: D250852A
    Certified Pre-Owned: Yes
    Listed since: 04-16-2025

  • Stock photo**
    $51,037
    good price
    $1,733 below market
    • 55,333 miles
    • No accidents, 1 owner, personal use only
    • 6cyl automatic
    • Honda of Owings Mills (69 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Owings Mills, MD / 69 miles away from Wilmington, DE

    Selenite Grey Metallic exterior and Black interior. Heated Seats, Moonroof, Nav System, Third Row Seat, Aluminum Wheels, Turbo Charged Engine, Full-Ti...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE6NA620668
    Stock: NA620668
    Certified Pre-Owned: No
    Listed since: 03-27-2025

  • $60,163
    fair price
    $1,436 above market
    • 30,137 miles
    • No accidents, 2 owners, personal use
    • 6cyl automatic
    • Mercedes-Benz of Little Silver (89 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Little Silver, NJ / 89 miles away from Wilmington, DE

    Mercedes-Benz of Little Silver is proud to present this...Emerald Green 2022 Mercedes-Benz GLS 450 4MATIC® I6 9-Speed Automatic 4MATIC®Clean CARFAX....

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE9NA604416
    Stock: ML369A
    Certified Pre-Owned: No
    Listed since: 04-08-2025

  • Price Drop
    $48,590
    fair price
    $375 above market
    • 52,245 miles
    • No accidents, 2 owners, personal use only
    • 6cyl automatic
    • Carvana - Philadelphia (31 mi away)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Philadelphia, PA / 31 miles away from Wilmington, DE

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE2NA756957
    Stock: 2003431197
    Certified Pre-Owned: No
    Listed since: 02-20-2025

  • $47,795
    good price
    $1,675 below market
    • 58,246 miles
    • 1 accident, 1 owner, personal use only
    • 6cyl automatic
    • Honda of Bridgewater (77 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Bridgewater, NJ / 77 miles away from Wilmington, DE

    GLS 450 4MATIC®, 4D Sport Utility, I6, 9-Speed Automatic, 4MATIC®, Beige Leatherette.*Please Read* Due to extremely high demand and our aggressive p...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (18 City/24 Highway)

    Listing Information:

    VIN: 4JGFF5KE0NA702685
    Stock: U12075H
    Certified Pre-Owned: No
    Listed since: 04-03-2025

Showing 1 - 21 out of 342 listings

Consumer Reviews for the Mercedes-Benz GLS-Class

Read recent reviews for the Mercedes-Benz GLS-Class
Overall Consumer Rating
3.8 out of 5 stars32 Reviews
Write a vehicle reviewSee all 32 reviews
  • 5 star
    (53%)
  • 4 star
    (9%)
  • 3 star
    (9%)
  • 2 star
    (16%)
  • 1 star
    (13%)
2 out of 5 stars

Beautiful combined with no QC

John Gamble, 12/22/2020
2020 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
The ride is absolutely stunning and the interior is downright beautiful. We love the tech and features... kids can’t get enough of the ambient lighting options. But there’s a catch. The build quality just plain sucks. We’re had the car for 2ish months, and it’s already spent 9 days in the shop. First, the high fan made a crazy loud noise. Then the rain sensing wipers didn’t sense rain. … Now we have a window that sounds like it is going to fail when we roll it down. Also there appears to be a subtle fit issue on the rear bumper. These cars are built in the US, and I get the sense that they have no idea how to put them together. There is so much tech, and so many points of failure. I feel like we are going to have a very close relationship with the dealer over the life of this car. At least it’s pretty and drives well. Update on 1/4/2020 - Two more issues after getting the car back last week... a check engine light and a warning that the collision avoidance system is disabled because the sensor is dirty (the sensor does not appear to be dirty). A word to the wise... think long and hard before buying this car.
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Used 2021 Mercedes-Benz GLS-Class in Wilmington, DE Values

Estimated values
2021 Mercedes-Benz GLS-Class GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric mild hybrid 9A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$49,849$52,428$55,010
Clean$49,070$51,595$54,123
Average$47,773$50,208$52,643
Rough$46,086$48,404$50,720

The average list price of a used 2021 Mercedes-Benz GLS-Class in Wilmington, Delaware is $52,585. The average mileage on a used Mercedes-Benz GLS-Class 2021 for sale in Wilmington, Delaware is 47,802. Based on the average mileage of 47,802 for used 2021 Mercedes-Benz GLS-Class for sale in Wilmington, DE and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used Mercedes-Benz GLS-Class 2021 in Wilmington, Delaware to be $47,773.

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