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Used Mercedes-Benz GLS 450 in Illinois

44 listings from 24 dealer lots in Illinois, $9,953 to $84,505 (median $53,322). 4 price drops this week. Newest first. Refine with filters

  1. 2018 Mercedes-Benz GLS 450 SUV
    111,540 mi·AWD·BlackMap North Florida · Lexington, IL
    $16,199
  2. 2023 Mercedes-Benz GLS 450 4MATIC
    36,815 mi·AWD·Polar WhiteMercedes-Benz of Chicago · Chicago, IL
    $53,322
  3. 2025 Mercedes-Benz GLS 450 4MATIC®
    41,785 mi·AWD·WhiteMidway Dodge · Chicago, IL
    $57,327
  4. 2020 Mercedes-Benz GLS 450 SUV
    81,054 mi·AWD·Polar WhiteLexus of Arlington · Arlington Heights, IL
    $28,995$29,495
    $500 price drop
  5. 2025 Mercedes-Benz GLS 450 4MATIC
    17,874 mi·AWD·WhiteZeigler Alfa Romeo Of Schaumburg · Schaumburg, IL
    $70,000
  6. 2023 Mercedes-Benz GLS 450 4MATIC
    36,389 mi·AWD·Selenite GrayLaurel BMW of Westmont · Chicago, IL
    $60,372
    Certified
  7. 2024 Mercedes-Benz GLS 450 4MATIC
    32,627 mi·AWD·BlackMercedes-Benz of Orland Park · Orland Park, IL
    $65,968
    Certified
  8. 2024 Mercedes-Benz GLS 450 4MATIC
    28,813 mi·AWD·GrayKunes GMC of Belvidere · Sycamore, IL
    $61,883
  9. 2026 Mercedes-Benz GLS 450 4MATIC
    10,966 mi·AWD·Polar WhiteLaurel BMW of Westmont · Chicago, IL
    $70,076$70,930
    $854 price drop
  10. 2023 Mercedes-Benz GLS 450 4MATIC
    59,644 mi·AWD·BlackZeigler Alfa Romeo Of Schaumburg · Schaumburg, IL
    $46,870$47,283
    $413 price drop
  11. 2026 Mercedes-Benz GLS 450 4MATIC
    6,966 mi·AWD·Obsidian BlackLaurel BMW of Westmont · Chicago, IL
    $84,505$85,607
    $1,102 price drop
  12. 2025 Mercedes-Benz GLS 450 4MATIC
    3,925 mi·AWD·Selenite Gray MetallicMercedes-Benz of Orland Park · Orland Park, IL
    $78,968$79,368
    $400 price drop
  13. 2025 Mercedes-Benz GLS 450 4matic®
    26,487 mi·AWD·Cirrus SilverAston Martin Chicago · Downers Grove, IL
    $60,412
  14. 2018 Mercedes-Benz GLS 450
    86,866 mi·AWD·BlackCarWise Gurnee · Gurnee, IL
    $20,376
  15. 2017 Mercedes-Benz GLS 450
    97,043 mi·AWD·OrangeCarWise Gurnee · Gurnee, IL
    $15,876
  16. 2020 Mercedes-Benz GLS 450
    97,340 mi·Polar WhiteLexus of Peoria · Peoria, IL
    $27,703
  17. 2020 Mercedes-Benz GLS 450
    66,610 mi·AWD·GrayMaserati Alfa Romeo of Naperville · Naperville, IL
    $34,999
  18. 2023 Mercedes-Benz GLS 450
    39,808 mi·AWD·GrayMaserati Alfa Romeo of Naperville · Naperville, IL
    $53,998
  19. 2025 Mercedes-Benz GLS 450
    8,389 mi·AWD·Polar WhiteLeader Auto Bloomington Normal Automall · Normal, IL
    $69,576
  20. 2025 Mercedes-Benz GLS 450
    53,293 mi·AWD·SilverZeigler Chrysler Dodge Jeep Ram of Schaumburg · Schaumburg, IL
    $49,976
  21. 2026 Mercedes-Benz GLS 450
    12,972 mi·AWD·Polar WhiteZeigler Chrysler Dodge Jeep Ram of Schaumburg · Schaumburg, IL
    $72,599$74,956
    $2,357 price drop
  22. 2026 Mercedes-Benz GLS 450
    16,806 mi·AWD·BlackZeigler Chrysler Dodge Jeep Ram of Schaumburg · Schaumburg, IL
    $70,764$74,888
    $4,124 price drop
  23. 2017 Mercedes-Benz GLS 450
    77,117 mi·Iridium Silver MetallicHuntley Ford · Huntley, IL
    $17,190
  24. 2021 Mercedes-Benz GLS 450
    36,165 mi·AWD·BlackMarion Buick GMC · Marion, IL
    $43,995
  25. 2025 Mercedes-Benz GLS 450
    49,860 mi·AWD·BlackCountryside Mitsubishi · Countryside, IL
    $56,908
  26. 2017 Mercedes-Benz GLS 450 4MATIC®
    178,273 mi·Obsidian Black MetallicSchaumburg Ford · Schaumburg, IL
    $9,953$10,904
    $951 price drop
  27. 2025 Mercedes-Benz GLS 450
    35,437 mi·AWD·BlackCountryside Mitsubishi · Countryside, IL
    $57,908
  28. 2024 Mercedes-Benz GLS 450
    17,375 mi·AWD·GRAY4440 West Wabash, Springfield, IL 62711 Go · Springfield, IL
    $70,312
  29. 2019 Mercedes-Benz GLS 450
    86,133 mi·AWD·OrangeCarWise Gurnee · Gurnee, IL
    $21,376
  30. 2017 Mercedes-Benz GLS 450
    105,939 mi·AWD·BlackYour Choice Autos - Joliet · Joliet, IL
    $17,876
  31. 2025 Mercedes-Benz GLS 450
    35,849 mi·AWD·GrayJidd Motors Mitsubishi · Des Plaines, IL
    $58,908
  32. 2025 Mercedes-Benz GLS 450
    35,146 mi·AWD·BlackCountryside Mitsubishi · Countryside, IL
    $58,908
  33. 2025 Mercedes-Benz GLS 450
    39,650 mi·AWD·GrayCountryside, IL, near Chicago, Burr Ridge, La Grange, · Countryside, IL
    $56,908
  34. 2025 Mercedes-Benz GLS 450
    49,234 mi·AWD·SilverJidd Motors Mitsubishi · Des Plaines, IL
    $55,908
  35. 2022 Mercedes-Benz GLS 450
    64,478 mi·AWD·BlackMaserati Alfa Romeo of Naperville · Naperville, IL
    $45,698$45,998
    $300 price drop
  36. 2020 Mercedes-Benz GLS 450
    51,945 mi·Emerald Green MetallicElgin Hyundai · Bartlett, IL
    $35,946$37,399
    $1,453 price drop

See every model: Used Mercedes-Benz GLS 450 for sale.

Lower asking prices in Illinois, the cars priced below their matching comparison median.

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