Mercedes-Benz GLS-Class for Sale in Illinois

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$14,449

106,328 mi

Est. $219/mo*

14 days on market

Black

Korea Auto Group Joliet

Joliet, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$14,868

132,169 mi

Est. $225/mo*

56 days on market

GrayBlack

Motorcars Express

Alsip, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$15,353

102,557 mi

Est. $232/mo*

74 days on market

WhiteBlack

Prime Rides Autohaus

Dwight, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$15,362

135,319 mi

Est. $232/mo*

110 days on market

Polar WhiteBrown

Prince Auto Sales

Waukegan, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$16,355

126,719 mi

Est. $246/mo*

5 days on market

WhiteBrown

CarLux

Waukegan, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$16,495

102,317 mi

Est. $248/mo*

23 days on market

OtherOther

Titan Auto Sales

Worth, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$16,799

105,939 mi

Est. $253/mo*

110 days on market

BlackTan

Your Choice Auto Sales of Crestwood

Joliet, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$16,862

155,555 mi

Est. $254/mo*

90 days on market

WhiteBrown

Luxury Motors Credit

Crestwood, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$17,225

96,583 mi

Est. $259/mo*

178 days on market

BlackBlack

Land Rover Schaumburg

Schaumburg, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$17,564

110,571 mi

Est. $264/mo*

26 days on market

BlueTan

BG Motorcars

Naperville, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$17,825

107,348 mi

Est. $267/mo*

126 days on market

SilverBlack

Car Hunter Express Inc.

Bensenville, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$18,058

120,524 mi

Est. $271/mo*

41 days on market

WhiteBrown

New Ride Inc.

Evanston, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$18,362

127,993 mi

Est. $275/mo*

70 days on market

GrayBlack

Luxury Motors Credit

Crestwood, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$19,277

112,459 mi

Est. $288/mo*

76 days on market

GrayBlack

Golf Mill Ford

Niles, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$19,300

93,000 mi

Est. $288/mo*

81 days on market

WhiteBrown

Supreme Carriage

Wauconda, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$19,357

100,952 mi

Est. $289/mo*

97 days on market

SilverBlack

Driven Auto of Dundee

East Dundee, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$19,362

126,305 mi

Est. $289/mo*

70 days on market

SilverBlack

Luxury Motors Credit

Crestwood, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$19,741

77,117 mi

Est. $295/mo*

51 days on market

SilverBlack

Old Orchard Nissan

Skokie, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$19,785

76,062 mi

Est. $295/mo*

38 days on market

Black

Autos of Chicago

Arlington Heights, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 550

$19,907

105,361 mi

Est. $297/mo*

26 days on market

BlackBlack

Baha Auto Group - Palos Hills

Palos Hills, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$20,045

76,778 mi

Est. $299/mo*

41 days on market

BlackBlack

Fairway Auto Sales

Melrose Park, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$20,310

98,541 mi

Est. $303/mo*

45 days on market

GrayBlack

Lexus of Orland

Orland Park, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 550

$20,362

125,088 mi

Est. $303/mo*

40 days on market

BlackBlack

Luxury Motors Credit

Crestwood, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$20,362

83,022 mi

Est. $303/mo*

201 days on market

BlackBlack

Star Motor Sales

Downers Grove, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$21,110

85,294 mi

Est. $314/mo*

9 days on market

BlackBlack

McGrath KIA of St. Charles

St Charles, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$21,176

76,270 mi

Est. $315/mo*

181 days on market

BlueEspresso Brown

Star Motor Sales

Downers Grove, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$21,258

71,013 mi

Est. $316/mo*

300 days on market

BlueBeige

Exotic Motors Inc.

Rolling Meadows, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 550

$21,376

101,233 mi

Est. $318/mo*

17 days on market

BlackBlack

Audi Creve Coeur

Northlake, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$21,723

97,000 mi

Est. $323/mo*

41 days on market

WhiteBlack

Mundo Auto Sales Inc.

Elgin, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$21,995

51,254 mi

Est. $327/mo*

57 days on market

Silver Grey

Autos of Chicago

Arlington Heights, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$22,330

49,914 mi

Est. $332/mo*

1 day on market

Cavansite BlueAlmond

Land Rover Schaumburg

Schaumburg, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$22,358

69,419 mi

Est. $332/mo*

119 days on market

White

Car Planet

Chicago Heights, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$22,358

84,353 mi

Est. $332/mo*

300 days on market

BlackTan

Star Motor Sales

Downers Grove, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 550

$22,362

116,110 mi

Est. $332/mo*

184 days on market

WhiteBlack

Affinity Auto Sales

West Chicago, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$22,388

77,203 mi

Est. $332/mo*

110 days on market

Polar WhiteBlack

Motor Cars Mitsubishi

Aurora, IL

Used 2017 Mercedes-Benz GLS-Class

GLS 450

$23,255

75,028 mi

Est. $345/mo*

31 days on market

Polar WhiteBrown

Chicago Auto Place

Downers Grove, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$24,370

75,960 mi

Est. $361/mo*

68 days on market

BlackBlack

carneed

Northbrook, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$24,888

86,264 mi

Est. $368/mo*

104 days on market

Polar WhiteBlack

Motor Cars Mitsubishi

Aurora, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 550

$25,129

108,116 mi

Est. $371/mo*

87 days on market

WhiteBrown

Auto Net Broker Inc.

Bloomington, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 550

$25,327

82,461 mi

Est. $374/mo*

213 days on market

SilverBlack

Lucky Motors

Villa Park, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 550

$25,362

76,318 mi

Est. $375/mo*

94 days on market

BlackBlack

Luxury Motors Credit

Crestwood, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$25,372

88,064 mi

Est. $375/mo*

136 days on market

BlackBrown

Baha Auto Group - Palos Hills

Palos Hills, IL

Used 2018 Mercedes-Benz GLS-Class

GLS 450

$26,504

44,374 mi

Est. $391/mo*

8 days on market

WhiteBrown

Autohaus of Peoria

Peoria, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$26,981

65,948 mi

Est. $398/mo*

52 days on market

Polar WhiteBrown

Knauz Continental Autos

Lake Bluff, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$27,488

57,141 mi

Est. $405/mo*

37 days on market

WhiteBlack

Howard Orloff Volvo

Chicago, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 450

$29,099

48,402 mi

Est. $428/mo*

67 days on market

BlackBrown

iDrive Motor Sports Inc.

Berwyn, IL

Used 2020 Mercedes-Benz GLS-Class

GLS 450

$30,370

91,340 mi

Est. $446/mo*

113 days on market

Polar WhiteRed

The Car Haus

Roselle, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 550

$32,362

74,324 mi

Est. $475/mo*

171 days on market

GrayBlack

Affinity Auto Sales

West Chicago, IL

Used 2020 Mercedes-Benz GLS-Class

GLS 450

$32,372

83,863 mi

Est. $475/mo*

11 days on market

Silver

Exclusive Autohaus

Roselle, IL

Used 2020 Mercedes-Benz GLS-Class

GLS 450

$32,917

65,101 mi

Est. $482/mo*

88 days on market

BlackRed

Ford of Peoria

Peoria, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 450

$33,370

65,538 mi

Est. $489/mo*

92 days on market

BlueBrown

Motor Cars Mitsubishi

Aurora, IL

Used 2020 Mercedes-Benz GLS-Class

GLS 450

$33,410

66,610 mi

Est. $489/mo*

81 days on market

GrayBlack

Maserati, Alfa Romeo & FIAT of Naperville

Naperville, IL

Used 2020 Mercedes-Benz GLS-Class

GLS 450

$33,989

60,700 mi

Est. $498/mo*

26 days on market

BlueBlack

Mercedes-Benz of Chicago

Chicago, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 450

$34,362

96,660 mi

Est. $503/mo*

66 days on market

GrayBlack

Bunt Motors

Northbrook, IL

Used 2020 Mercedes-Benz GLS-Class

GLS 450

$34,376

73,799 mi

Est. $503/mo*

81 days on market

Dart Motors LLC

Mchenry, IL

Used 2019 Mercedes-Benz GLS-Class

GLS 63 AMG

$35,372

62,303 mi

Est. $517/mo*

152 days on market

BlackBlack

Blue Sky Auto Sales - Crestwood

Crestwood, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 450

$37,077

72,267 mi

Est. $542/mo*

45 days on market

GreenBrown

Cadillac of Naperville, Inc.

Naperville, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 450

$37,362

77,859 mi

Est. $546/mo*

5 days on market

WhiteBrown

Twins Auto Mall

Rockford, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$39,187

74,888 mi

Est. $572/mo*

64 days on market

SilverBlack

Honda of Downtown Chicago

Naperville, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 580

$40,704

75,478 mi

Est. $593/mo*

129 days on market

WhiteCrystal White

Kunes Lakes Chevrolet‎

Lake Bluff, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$42,963

42,991 mi

Est. $626/mo*

177 days on market

GrayBlack

Huntley Ford

Huntley, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$42,977

59,283 mi

Est. $626/mo*

9 days on market

BlackBlack

Genesis of Aurora

Aurora, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$43,367

55,205 mi

Est. $631/mo*

31 days on market

BlackBlack Leather

Fields BMW Northfield

Northfield, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$44,247

62,719 mi

Est. $644/mo*

36 days on market

SilverBlack

Motor Deals USA

Glenview, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$45,371

59,884 mi

Est. $660/mo*

1 day on market

BlackBlack

Mercedes-Benz of Chicago

Chicago, IL

Used 2020 Mercedes-Benz GLS-Class

GLS 580

$46,255

41,871 mi

Est. $673/mo*

300 days on market

BlueRed

Chicago Auto Place

Downers Grove, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$46,377

46,579 mi

Est. $674/mo*

135 days on market

SilverBrown

Elmhurst Chrysler Dodge Jeep RAM

Elmhurst, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$46,403

61,615 mi

Est. $675/mo*

133 days on market

GreyEspresso

Mercedes-Benz of St Charles

St. Charles, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$46,801

30,871 mi

Est. $680/mo*

149 days on market

SilverBrown

Gravity Autos Chicago

Highland Park, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$47,589

44,996 mi

Est. $692/mo*

85 days on market

WhiteBlack

Kunes Auto Mall of Sycamore

Sycamore, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$50,255

39,443 mi

Est. $730/mo*

72 days on market

BlueBlack

Chicago Auto Place

Downers Grove, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$50,393

34,837 mi

Est. $731/mo*

151 days on market

BlackBlack

Al Piemonte Buick GMC

Elmhurst, IL

Used 2023 Mercedes-Benz GLS-Class

GLS 450

$50,405

45,802 mi

Est. $732/mo*

300 days on market

GrayBrown

Huntley Ford

Huntley, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$50,411

36,976 mi

Est. $732/mo*

30 days on market

BlackBlack

Mercedes-Benz of Hoffman Estates

Hoffman Estates, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 580

$51,748

45,905 mi

Est. $751/mo*

15 days on market

GrayBlack

Napleton Cadillac of Oak Lawn

Oak Lawn, IL

Used 2023 Mercedes-Benz GLS-Class

GLS 450

$51,956

54,046 mi

Est. $754/mo*

55 days on market

Polar WhiteBrown

Driven Auto of Oak Forest

Oak Forest, IL

Used 2023 Mercedes-Benz GLS-Class

GLS 450

$53,408

44,778 mi

Est. $774/mo*

240 days on market

Polar WhiteBlack

Ottawa Ford / Ottawa KIA

Ottawa, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 450

$54,177

26,626 mi

Est. $785/mo*

18 days on market

BlackBlack

Paul Miller Volkswagen of Bernardsville

Westmont, IL

Used 2023 Mercedes-Benz GLS-Class

GLS 450

$54,351

45,231 mi

Est. $788/mo*

72 days on market

Polar WhiteMacchiato Beige

Golf Mill Ford

Niles, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 63 S AMG

$54,376

79,159 mi

Est. $788/mo*

198 days on market

BlackBlack

Audi Creve Coeur

Northlake, IL

Used 2023 Mercedes-Benz GLS-Class

GLS 450

$55,877

28,639 mi

Est. $810/mo*

44 days on market

BlackBlack

Elmhurst Chrysler Dodge Jeep RAM

Elmhurst, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$56,212

43,755 mi

Est. $814/mo*

99 days on market

Polar WhiteBlack

Land Rover Naperville

Naperville, IL

Used 2023 Mercedes-Benz GLS-Class

GLS 450

$58,600

22,962 mi

Est. $848/mo*

84 days on market

SeleniteBlack

Perillo BMW

Chicago, IL

Used 2023 Mercedes-Benz GLS-Class

GLS 450

$58,999

22,175 mi

Est. $854/mo*

78 days on market

SilverBlack

Eurocar Irvine

Schaumburg, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$59,912

38,372 mi

Est. $867/mo*

73 days on market

Polar WhiteBlack Mb-Tex

Motor Werks Cadillac of Barrington

Barrington, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$60,375

47,120 mi

Est. $874/mo*

91 days on market

Polar WhiteBlack

Heller Chevrolet GMC

El Paso, IL

Used 2025 Mercedes-Benz GLS-Class

GLS 450

$60,412

25,825 mi

Est. $874/mo*

141 days on market

SilverBlack

Napleton's Aston Martin of Chicago

Downers Grove, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 63 S AMG

$60,630

58,782 mi

Est. $877/mo*

32 days on market

GreenBlack

Old Orchard Nissan

Skokie, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$61,099

23,708 mi

Est. $884/mo*

35 days on market

BlackBlack

iDrive Motor Sports Inc.

Berwyn, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$62,488

16,682 mi

Est. $904/mo*

77 days on market

WhiteBrown

Howard Orloff Volvo

Chicago, IL

Used 2025 Mercedes-Benz GLS-Class

GLS 450

$63,610

26,164 mi

Est. $920/mo*

14 days on market

WhiteBlack

Heritage Cadillac

Lombard, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$64,324

15,536 mi

Est. $930/mo*

149 days on market

GrayBlack

BMW of Peoria

Peoria, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$64,411

18,716 mi

Est. $931/mo*

267 days on market

GrayBlack

Mercedes-Benz of Hoffman Estates

Hoffman Estates, IL

Used 2025 Mercedes-Benz GLS-Class

GLS 450

$64,992

13,873 mi

Est. $940/mo*

66 days on market

BlackBlack

Elgin Hyundai

Bartlett, IL

Used 2025 Mercedes-Benz GLS-Class

GLS 450

$66,755

20,048 mi

Est. $965/mo*

226 days on market

BlackBlack

Autos of Chicago

Arlington Heights, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 450

$66,910

28,813 mi

Est. $967/mo*

71 days on market

GrayBlack

Kunes Auto Mall of Sycamore

Sycamore, IL

Used 2024 Mercedes-Benz GLS-Class

GLS 580

$67,400

49,472 mi

Est. $974/mo*

110 days on market

Alpine GrayBlack

BMW of Orland Park

Orland Park, IL

Used 2022 Mercedes-Benz GLS-Class

GLS 580

$67,411

1,309 mi

Est. $974/mo*

300 days on market

WhiteBrown

Mercedes-Benz of Hoffman Estates

Hoffman Estates, IL

Used 2025 Mercedes-Benz GLS-Class

GLS 450

$67,696

25,944 mi

Est. $978/mo*

140 days on market

BlackBlack

Zeigler Cadillac of Lincolnwood

Lincolnwood, IL

Used 2021 Mercedes-Benz GLS-Class

GLS 63 S AMG

$69,357

42,036 mi

Est. $1,002/mo*

55 days on market

BlackMacchiato

Paul Miller Volkswagen of Bernardsville

Westmont, IL